Yet Another Cycling Forum

General Category => The Knowledge => OT Knowledge => Topic started by: andyoxon on 10 October, 2021, 04:58:32 pm

Title: Home energy saving tips /ideas...
Post by: andyoxon on 10 October, 2021, 04:58:32 pm
Any pearls of energy saving wisdom to impart, esp given current situation?

Only boil water you need.
I've been a bit a bit poor at only boiling water I need of late, so am currently prefilling the container that the boiling water is for, with cold water, then adding it to the kettle to boil only that required.
Fortunately the kettle has a side window, with gradations down to 1 cup.
Title: Re: Home energy saving tips /ideas...
Post by: Lightning Phil on 10 October, 2021, 05:06:59 pm
Blanket throw for your favourite chair / sofa. A good jumper / fleece to put on. Have any central heating turn off at least 1.5 hours before you go to bed. Turn down central thermostat by 1C or more.  Turn down valves on radiators in rooms you are not in. Long curtains to help retain heat. Close doors to retain warmth in rooms you are in.
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 10 October, 2021, 05:35:12 pm
Turn lights off in rooms that you are not in and also superfluous outdoor lighting.

Queue up your oven cooking and baking to make best use of the oven.

Make a flask of hot brown liquid of choice when you make a cuppa next time to save on a second boil an hour later.

Put on a fleece / jumper instead of turning the heating on or to allow you to turn the heating down a degree or two.

Turn the rads down to a low / frost setting in rooms where you infrequently go.

Close doors.

A friend of mine used to close off the front rooms in his house in the winter and live in the back rooms only.  He has since moved to a much smaller bungalow.

Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 10 October, 2021, 05:50:35 pm
I have just read the meter. I still don't understand why Ecotricity want me to do this as we have had a smart meter for a couple of years now.

However, the gas reading was exactly the same as the last time the meter was read. This precipitated an inquisition from the website.

"This is the same reading as last time. Are you sure it's right?"

"Yes."

"Please select from the following reasons."

"Other."

then a space for an explanation.

"We haven't used any gas."

I'm currently in credit to the tune of £600 or so. I don't think there's an option to buy my units at today's price so that I don't have to pay the price increase until later.
Title: Re: Home energy saving tips /ideas...
Post by: grams on 10 October, 2021, 06:39:34 pm
Only boil water you need.
I've been a bit a bit poor at only boiling water I need of late, so am currently prefilling the container that the boiling water is for, with cold water, then adding it to the kettle to boil only that required.
Fortunately the kettle has a side window, with gradations down to 1 cup.

A hotel room style 750W kettle will help greatly with this.

Not because it uses less energy, because it doesn’t, but because it makes you weight for-chuffing-ever if you casually overfill it.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 10 October, 2021, 06:52:23 pm
If you've got a damp house get a dehumidifier. Despite what the thermometer says you'll feel warmer in less damp air of the same temperature.
Title: Re: Home energy saving tips /ideas...
Post by: Lightning Phil on 10 October, 2021, 07:03:06 pm
Queue up your oven cooking and baking to make best use of the oven.

You could do the same with hot water: all bath, shower and do the washing up around the same time to save heating the water for a long time or multiple times each day.

A couple of years ago I cut our lighting running costs by 94% by replacing all our 60w bulbs with LED bulbs.

Nana used to do that with tin bath in front of coal fire.  Mum, dad, kids all using the same bath water in front of fire before it cooled down.
Title: Re: Home energy saving tips /ideas...
Post by: rafletcher on 10 October, 2021, 07:12:52 pm
Queue up your oven cooking and baking to make best use of the oven.

You could do the same with hot water: all bath, shower and do the washing up around the same time to save heating the water for a long time or multiple times each day.

A couple of years ago I cut our lighting running costs by 94% by replacing all our 60w bulbs with LED bulbs.

Nana used to do that with tin bath in front of coal fire.  Mum, dad, kids all using the same bath water in front of fire before it cooled down.

Yep, but then it was a pain in the fundaments to heat the water on the stove in the first place, so you only wanted to do it once.
Title: Re: Home energy saving tips /ideas...
Post by: hubner on 10 October, 2021, 07:36:59 pm
Do the washing up with cold water. Soak the dishes first, then rinse off.

Yeah also wash your hands in cold water.

Quote
Queue up your oven cooking and baking to make best use of the oven.

I would say don't use the oven, as it seems to me it uses a lot of fuel compared to other methods of cooking.

Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 10 October, 2021, 07:50:56 pm
Do the washing up with cold water. Soak the dishes first, then rinse off.


I had to do this a couple of months ago when we were without a boiler for about 10 days. It was horrible - things just didn't seem to get as clean, and I ended up using more washing-up liquid to compensate. I won't be doing it by choice in a hurry.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 10 October, 2021, 08:21:53 pm
Yeah also wash your hands in cold water.

I'm probably washing my hands about 5 times more than usual on account of caring for barakta.  They're dry and cracked, like after a week of camping.  If the water were any colder they'd be bleeding raw.
Title: Re: Home energy saving tips /ideas...
Post by: LittleWheelsandBig on 10 October, 2021, 08:24:04 pm
Oven cooking is less efficient than a microwave but the excess energy is heat, inside your house. That offsets against additional central heating, to some extent.
Title: Re: Home energy saving tips /ideas...
Post by: Paul H on 10 October, 2021, 08:27:23 pm
Get a good understanding of what you're using, when and where.
Don't open fridges and freezers more often than needed and keep them reasonably full.
Always wash a full load, get a spinner, then air dry unless that's impossible.
Batch cook meals.
Know how warm you need to be for comfort rather than habit, but don't let your home get so cold it costs a fortune to bring it back up to a reasonable temperature.

I've never had running hot water other than from an electric shower. I use that in the bathroom and have two kettles in the kitchen,  Either I've lived places where there wasn't the option, or that option has been a crappy emersion heater. I might do otherwise if the option was an efficient combi boiler, but I've never missed what I've never had.
If you haven't already, get a night tariff and do as much as practical at the lower rate.
My energy bill for a small two bedroom flat is £24 a month and I'm well in credit  ;)  Though I've had my meter checked twice on the pretext there might be a fault, but they're obviously looking to see if it's been tampered with.
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 10 October, 2021, 08:34:25 pm
Oven cooking os less efficient than a microwave but the excess energy is heat, inside your house. That offsets against additional central heating, to some extent.

In defence of the humble oven:

I can get significantly more into my gas oven than I can a microwave oven, and,

We do not own a microwave.

I don't know what a decent microwave costs but regardless, I have no realistic idea of how long it would take to recoup the cost in energy use terms.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 10 October, 2021, 08:36:01 pm
I'm not sure anyone's made a decent microwave this century.
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 10 October, 2021, 08:47:43 pm
In that case I can resist the lure of the poppity ping with a clear conscience.  😉
Title: Re: Home energy saving tips /ideas...
Post by: nikki on 10 October, 2021, 08:48:16 pm
I find it's not much fun below about 12C. I've been known to pull up a stool in front of the open door of a recently-used oven before.

Also wintering in one room so as not to heat the others. (One oil radiator per room, one with a working dial, the other without. Made an arduino-controlled thermostat to hold the room I was in at a specified temperature with the busted radiatior and used the working radiator on the frost setting to stop the other room from getting too too cold.)

Thick socks and fingerless gloves in a Dickensian clerk stylee.



Title: Re: Home energy saving tips /ideas...
Post by: Lightning Phil on 10 October, 2021, 08:53:30 pm
Queue up your oven cooking and baking to make best use of the oven.

You could do the same with hot water: all bath, shower and do the washing up around the same time to save heating the water for a long time or multiple times each day.

A couple of years ago I cut our lighting running costs by 94% by replacing all our 60w bulbs with LED bulbs.

Nana used to do that with tin bath in front of coal fire.  Mum, dad, kids all using the same bath water in front of fire before it cooled down.

Yep, but then it was a pain in the fundaments to heat the water on the stove in the first place, so you only wanted to do it once.

There was a back boiler connected to the fire by a long iron rod that reached down into the fire.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 10 October, 2021, 08:54:44 pm
Also wintering in one room so as not to heat the others.

This.  I reckon barakta and I (normally) save a huge amount of energy by mostly living upstairs, rather than trying to heat downstairs to a reasonable level.  Especially since the gas heater in the front room got condemned.

I reckon the biggest energy saving I could make would be to cycle (and therefore wash) less.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 10 October, 2021, 09:01:24 pm
Use free solar heat on sunny winter days by opening doors to sunny rooms.  If you have a conservatory in full sun, this can heat the whole house.

If you have a wood burner, you have probably learnt the art of scavenging free wood already (always loads free on Facebook Marketplace, although unlikely to be ready to burn this year).  My top tip is that leylandii is a pretty good wood burner fuel and totally useless for anything else, so people are often looking to get rid of it.
Title: Re: Home energy saving tips /ideas...
Post by: Feanor on 10 October, 2021, 09:06:42 pm
I would say don't use the oven, as it seems to me it uses a lot of fuel compared to other methods of cooking.

That's pretty hair-shirt, even by the standards of this thread.
Making bread over a hotel-issue milliwatt iron is going to be somewhat challenging.

Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 10 October, 2021, 09:24:07 pm
Be careful you don't end up chasing the marginal gains. Turning lights off, great idea. It does save energy. But, emotional health can be improved by being in a well lit space. A typical LED light bulb these days is about 9w. You need to have that bulb on for over 111 hours for it to cost you 1KwH. Not stubbing my toe in the hallway (light switch is far end of it, and only one end), is worth having the light on for. The same with the whole "Make sure you switch your TV off completely, not just on standby". EU law requires that devices like TV's consume 1W or less on standby. That's gonna take you almost 42 days for it to use 1kwh. Worth it for the improvement in quality of life of being able to turn the tele on from under your warm blanket...

So, rather than worrying about marginal gains, look at the big things.

Don't use a tumble drier. Unless you absolutely need to have your clothes dry in a couple of hours, just hang them up, outside if it's dry, inside if not. This should save in the region of 4-5kwh per cycle. Depending on how often you use your tumble drier, that can add up. Certainly faster than turning off lights, switching the tv off at the wall, or faffing about measuring only the amount of water you need for your tea.

Check for drafts. The highest standards of energy efficiency basically require your home to be a sealed box. With very little air exchange. Pretty much every home not built to these standards is going to be a drafty mess. But you can greatly improve things by those draft excludy strips along doors, checking windows etc... If you can keep the exchange of warm air indoors, with cold air out, to a minimum, you'll improve things a lot. A good pair of curtains can really help to reduce losses at the windows.

It can be a good idea to get heat exchanging vents tho, these can recover about 90% of the energy from the air they vent out, while warming the air that comes in, all for about 10-30w of energy.

It's very hard in a typical British home to be more energy efficient than most people already are, without drastically impinging on your quality of life, or without spending a lot of money on new things. Most of the common advice people give for energy saving is going to save pennies when multiplied out to a whole year. Even the thing with boiling only the water you need is very much in marginal gains territory. It takes about 0.046kwh to boil 500ml of water, and 0.091kwh to boil 1l of water. If every time you want to make 0.5l of tea, you boiled 1l instead, you'd need to do that nearly 22 times to cost an extra 1kwh. (exact numbers may vary depending on efficiency of your kettle). But. If you boil an extra 0.5l of water, you're not pouring it down the drain after you've made your tea, it sits in the kettle to be reboiled the next time (after you've topped it up again no doubt). As that water cools, the energy from that water is going to dissipate into the local environment. It's going to warm your kitchen a little. It's a marginal gain, for a lot of extra faff when you just want a cup of tea. Obviously if you drink a lot of tea every day, that may have a more significant impact over the whole year. The UK tea and infusions association[1] says the Brits drink 100000000 cups of tea a day, that's less than 1.5 cups per person per day. So that 22 cups of tea is going to work out at an extra 1kwh every 2 weeks, or 26kwh over the year. Or about a fiver...

J

[1] yeah, I was surprised by that one too...
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 10 October, 2021, 09:27:56 pm
I would say don't use the oven, as it seems to me it uses a lot of fuel compared to other methods of cooking.

That's pretty hair-shirt, even by the standards of this thread.
Making bread over a hotel-issue milliwatt iron is going to be somewhat challenging.

And it's misguided. Running the oven for an hour, is about 2.5kwh of energy (based on googling how much energy does an oven use). Which if the oven was out in the garden, would result in 2.5Kwh of energy lost to atmosphere, plus dinner. But your oven is in the kitchen, so running the oven for an hour puts 2.5kwh of energy into the kitchen in the form of warmth. And produces dinner. Saving you the need for 2.5kwh of heating in that room. It's a win win.

J
Title: Re: Home energy saving tips /ideas...
Post by: orienteer on 10 October, 2021, 09:35:03 pm
Probably doesn't apply to most on here, but I reckon the nation as a whole could save a lot of energy by not waiting for the safety cut-out on electric kettles when making tea and coffee. The water is boiling long before the cut-out triggers, and coffee is best brewed with the water at less than 100C anyway.

Every time I've had work done on the house, a chalet bungalow (1925) with non-cavity walls, I've included as much additional insulation as reasonably practicable. My next move is to fit closable grilles over the open ones which keep the underfloor area ventilated to prevent rotting of the rafters. When a westerly wind blows I can feel cold draughts in the kitchen as the air finds its way through inaccessible gaps. Selectively closing the grilles will reduce this without causing rot problems.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 10 October, 2021, 09:46:45 pm
Probably doesn't apply to most on here, but I reckon the nation as a whole could save a lot of energy by not waiting for the safety cut-out on electric kettles when making tea and coffee. The water is boiling long before the cut-out triggers, and coffee is best brewed with the water at less than 100C anyway.

Not really. If your 2kwh kettle was on for 1 minute longer than needed per boil, it would take 30 boils before it cost you 1kwh. Assuming the average of 1.5 mugs of tea a day, and one boil for each. That's gonna take you 20 days to cost 1kwh. Not exactly big savings...

J
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 10 October, 2021, 10:04:10 pm
Assuming the average of 1.5 mugs of tea a day ...

I would just like to apologise to the three people who don't get to drink tea on account of me being a 6 cups a day person; I am drinking their portions.

That's how averages work...

J
Title: Re: Home energy saving tips /ideas...
Post by: Paul H on 10 October, 2021, 10:05:55 pm
Saving you the need for 2.5kwh of heating in that room. It's a win win.

J
Except that for most of the year my kitchen doesn't need that heating. YKMV.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 10 October, 2021, 10:17:50 pm

It can be a good idea to get heat exchanging vents tho, these can recover about 90% of the energy from the air they vent out, while warming the air that comes in, all for about 10-30w of energy.

I was just asking about them here https://yacf.co.uk/forum/index.php?topic=118342.msg2664547#msg2664547
Interested to know about real world experience before I go fitting a bog std extractor.
Title: Re: Home energy saving tips /ideas...
Post by: Canardly on 10 October, 2021, 10:23:23 pm
Dig out the pressure cooker from the back of the cupboard.
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 10 October, 2021, 10:51:11 pm
QGs figure for a tumbler cycle seems awfully high. Maybe a straight through the wall heat blower type might have used that. Our recently deceased (2005-2020, RIP) vanilla condenser didn't, the replacement is even better.

To the OP, get a smart meter or plug in watt meter & go power hog hunting. My desktop turned out to use 180 watts :o.  I used to just leave it on because a) I didn't realise and b) heat cycles kill electronics. Turning that off 14 hours a night plus a few other surprises has reduced us from .75kwh/h average to ~.52kwh/h. That adds up fast 24/365.

I suspect our freezer is the next hog for the chop.

Thermostat at 19 degrees helps a lot but it is tough at this time of year adjusting to the lower ambient around the house.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 11 October, 2021, 06:59:37 am
Tumble dryers are neither here nor there in terms of impact on the overall bill.  Two 50 minute cycles a week in winter, always on half heat, is 1.25 units, or less than 20p.  The alternative is a mouldy house.  I hang stuff out in better weather.

Beware of vented vs condenser comparisons: the energy efficiency ratings are on a different scale and not comparable.  A B-rated vented dryer is better than a B-rated condenser dryer, and a vented dryer is more efficient than a condenser dryer unless the latter is a heat pump type. Personally, I'd never have a condenser dryer because they're not as reliable.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 11 October, 2021, 07:46:17 am
QGs figure for a tumbler cycle seems awfully high. Maybe a straight through the wall heat blower type might have used that. Our recently deceased (2005-2020, RIP) vanilla condenser didn't, the replacement is even better.

To the OP, get a smart meter or plug in watt meter & go power hog hunting. My desktop turned out to use 180 watts :o.  I used to just leave it on because a) I didn't realise and b) heat cycles kill electronics. Turning that off 14 hours a night plus a few other surprises has reduced us from .75kwh/h average to ~.52kwh/h. That adds up fast 24/365.

I suspect our freezer is the next hog for the chop.

Thermostat at 19 degrees helps a lot but it is tough at this time of year adjusting to the lower ambient around the house.

Our No2 freezer (allotment produce for the use of) is on its last legs (vintage about 1982, was father-in-law's until he died in 2019) - executive decision made by Mrs robgul and a new will be delivered from Mr Lewis's emprium on Weds - the power consumption is, allegedly, about 75% less?  Every little helps.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 11 October, 2021, 11:47:19 am
Yeah also wash your hands in cold water.

I'm probably washing my hands about 5 times more than usual on account of caring for barakta.  They're dry and cracked, like after a week of camping.  If the water were any colder they'd be bleeding raw.
What sort of soap are you using? Posh hippy soap, eg the stuff made out of olive oil ttps://www.hollandandbarrett.com/shop/product/oliva-pure-olive-oil-soap-60038772 is more expensive than supermarket soap (especially if you buy it at Holland and Barrett) but a lot less drying to skin. Faith in Nature is another nice one.
Title: Re: Home energy saving tips /ideas...
Post by: orienteer on 11 October, 2021, 12:00:33 pm
Probably doesn't apply to most on here, but I reckon the nation as a whole could save a lot of energy by not waiting for the safety cut-out on electric kettles when making tea and coffee. The water is boiling long before the cut-out triggers, and coffee is best brewed with the water at less than 100C anyway.

Not really. If your 2kwh kettle was on for 1 minute longer than needed per boil, it would take 30 boils before it cost you 1kwh. Assuming the average of 1.5 mugs of tea a day, and one boil for each. That's gonna take you 20 days to cost 1kwh. Not exactly big savings...

J


I did say the nation would save a lot of energy, not individuals.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 11 October, 2021, 12:22:33 pm

I did say the nation would save a lot of energy, not individuals.

If the 2KW kettle is on for 1 min extra per cup, for 100m cups per day, that's 3.3MWh per day. That's a good size wind turbine at max output for one hour.

Given the at the time of writing UK demand is 34.3GW. It's basically insignificant. Average daily usage for the UK is 287.58TWh, so that 3.3MWh each day works out as 0.0000000115% of the UK's total energy use for a day. That's a rounding error.

Remember, a tiny number multiplied by a big number just gets a middling number (See Hubble-Barn as unit of measure). 3.3MWh may seem like a lot to you as an individual, but on the scale of a nation, it's two thirds of bugger all.

J
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 11 October, 2021, 12:41:12 pm
Live with a large number of people in a small space.

Live in a tower block, preferably not on the ground or first floors.

Live in a mid-terrace.

Don't skimp on two hot meals a day.

Forget superstition, wear a hat indoors.

Move as much as possible.

Don't use labour saving devices. Doing housework manually keeps you warm.

Hot water bottles, blankets and mega-duvets.

That down jacket you bought for chilly evenings when camping can also be worn indoors.

Invite everyone you know for a party.
Title: Re: Home energy saving tips /ideas...
Post by: ppg on 11 October, 2021, 12:48:45 pm
The alternative is a mouldy house
Not a healthy environment plus a damp house feels colder, so may need more heating for comfortable living.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 11 October, 2021, 01:37:37 pm
Live with a large number of people in a small space.

Live in a tower block, preferably not on the ground or first floors.

Live in a mid-terrace.

Don't skimp on two hot meals a day.

Forget superstition, wear a hat indoors.

Move as much as possible.

Don't use labour saving devices. Doing housework manually keeps you warm.

Hot water bottles, blankets and mega-duvets.

That down jacket you bought for chilly evenings when camping can also be worn indoors.

Invite everyone you know for a party.
"Be rich" works instead of all the above.
Title: Re: Home energy saving tips /ideas...
Post by: Quisling on 11 October, 2021, 02:03:50 pm
We do not own a microwave.

I don't know what a decent microwave costs but regardless, I have no realistic idea of how long it would take to recoup the cost in energy use terms.

I've had several microwaves over the years but never purchased a new one.  There's always been someone's grandparent has popped their clogs desperately trying to clear their house out offering one cheap.
Title: Re: Home energy saving tips /ideas...
Post by: Quisling on 11 October, 2021, 02:07:08 pm
Old fridges and chest freezers eat tonnes of elastictrickery.  When we replaced our old small chest freezer with an A+ rated upright of similar volume it reduced power usage (for freezing) by ~80%. 

If you've done the full LED upgrade of lighting, refrigeration is probably your next biggest load unless you have several CRT teles and a stack of servers.
Title: Re: Home energy saving tips /ideas...
Post by: BFC on 11 October, 2021, 03:04:06 pm
Yeah also wash your hands in cold water.

I'm probably washing my hands about 5 times more than usual on account of caring for barakta.  They're dry and cracked, like after a week of camping.  If the water were any colder they'd be bleeding raw.
An unusual source for an all natural hand cleaner that takes on bike maintenance filth, dissolves adheshive label glue, leaves hands moisturised (aloe vera, johoba and lanolin), and smells of citrus oil. Loctite SF 7850 by Henkel. Works with or without water, works like a barrier cream if used before starting work on the filthy bits of bikes. Citrus oil is the active cleanser/glue dissolver.
Does leave a fine wood pulp like residue all over the sink though, but easily wiped off.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 11 October, 2021, 05:47:29 pm
If you've done the full LED upgrade of lighting

I'm pretty sure some of the what look like standard pendant light bulbs are halogens, so I need to get them swapped out.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 11 October, 2021, 06:00:31 pm
Live with a large number of people in a small space.

Live in a tower block, preferably not on the ground or first floors.

Live in a mid-terrace.

Don't skimp on two hot meals a day.

Forget superstition, wear a hat indoors.

Move as much as possible.

Don't use labour saving devices. Doing housework manually keeps you warm.

Hot water bottles, blankets and mega-duvets.

That down jacket you bought for chilly evenings when camping can also be worn indoors.

Invite everyone you know for a party.
"Be rich" works instead of all the above.
"Be rich" works to keep you cosy and not be troubled by the bills, but it doesn't save energy unless you invest it in insulation.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 11 October, 2021, 07:18:59 pm

"Be rich" works to keep you cosy and not be troubled by the bills, but it doesn't save energy unless you invest it in insulation.

Being rich means you can have appliances that are newer and more energy efficient.

Being rich means your home can be better maintained with Fewer drafts and less damp.

Being rich means you can own your home, so you can choose more efficient heating.

Being rich means you can own your own home so you can install proper insulation.

Being rich means you can cook a proper healthy filling meal.

Being rich means you can afford a better blanket that doesn't get too smelly too fast.

Being rich means you can afford a jumper that isn't made of horrible acrylic that seems to go from fresh out the laundry to teenagers sports bag odour within 30 mins of wear.

Being rich makes everything so much fucking easier.

J
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 11 October, 2021, 07:29:33 pm

I did say the nation would save a lot of energy, not individuals.

If the 2KW kettle is on for 1 min extra per cup, for 100m cups per day, that's 3.3MWh per day. That's a good size wind turbine at max output for one hour.

Given the at the time of writing UK demand is 34.3GW. It's basically insignificant. Average daily usage for the UK is 287.58TWh, so that 3.3MWh each day works out as 0.0000000115% of the UK's total energy use for a day. That's a rounding error.

Remember, a tiny number multiplied by a big number just gets a middling number (See Hubble-Barn as unit of measure). 3.3MWh may seem like a lot to you as an individual, but on the scale of a nation, it's two thirds of bugger all.

J
I agree that the over-run of kettles is insignificant, but you've got a the daily figure wrong. Average use in the UK is around 30 GW, which is around what you said, but that comes to 720 GWh per day, not hundreds of TWh. 3.3 MWh agrees with 100 M cups / 1 minute / 2 kW, and that comes to about 0.00045%

A much bigger load is the standby consumption of stuff. An alternative to a kettle is a boiling water tap, but they use 10 - 30 W on average without any hot water being dispensed. That is 0.24 to 0.72 kWh per day, or 7 to 21 minutes of a 2 kW kettle per day.

Lots of electronic devices take 1 W or so when doing nothing, and many houses have multiple items like that.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 11 October, 2021, 08:01:53 pm

"Be rich" works to keep you cosy and not be troubled by the bills, but it doesn't save energy unless you invest it in insulation.

Being rich means you can have appliances that are newer and more energy efficient.

Being rich means your home can be better maintained with Fewer drafts and less damp.

Being rich means you can own your home, so you can choose more efficient heating.

Being rich means you can own your own home so you can install proper insulation.

Being rich means you can cook a proper healthy filling meal.

Being rich means you can afford a better blanket that doesn't get too smelly too fast.

Being rich means you can afford a jumper that isn't made of horrible acrylic that seems to go from fresh out the laundry to teenagers sports bag odour within 30 mins of wear.

Being rich makes everything so much fucking easier.

And being rich means you can move somewhere warmer…
Title: Re: Home energy saving tips /ideas...
Post by: cygnet on 11 October, 2021, 08:17:13 pm

"Be rich" works to keep you cosy and not be troubled by the bills, but it doesn't save energy unless you invest it in insulation.

Being rich means you can have appliances that are newer and more energy efficient.

Being rich means your home can be better maintained with Fewer drafts and less damp.

Being rich means you can own your home, so you can choose more efficient heating.

Being rich means you can own your own home so you can install proper insulation.

Being rich means you can cook a proper healthy filling meal.

Being rich means you can afford a better blanket that doesn't get too smelly too fast.

Being rich means you can afford a jumper that isn't made of horrible acrylic that seems to go from fresh out the laundry to teenagers sports bag odour within 30 mins of wear.

Being rich makes everything so much fucking easier.

J
AKA Samuel Vimes' Boots Theory, by pterry
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 11 October, 2021, 08:35:19 pm
To quote Melody Maker from decades ago:

Remember, kids, money doesn't make you happy. 

Big houses, swimming pools, fast cars and endless groupies make you happy.
Title: Re: Home energy saving tips /ideas...
Post by: fruitcake on 11 October, 2021, 08:47:18 pm
Merino base layers are bloody marvellous. As are merino jumpers. They might cost upwards of £60 a piece but you're getting comfort in low temperatures. And you take that comfort with you when you go outdoors.

I think a big part of the solution for many people is 'more suitable clothing'.
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 11 October, 2021, 08:49:50 pm
I just checked the temperature of our water tank: 41°C. That's purely from sunshine, and fairly unusual for this late in the autumn. I shall have a solar-heated shower before I get into bed. It will probably be February before I have another... ;)
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 12 October, 2021, 12:17:22 am
I agree that the over-run of kettles is insignificant, but you've got a the daily figure wrong. Average use in the UK is around 30 GW, which is around what you said, but that comes to 720 GWh per day, not hundreds of TWh. 3.3 MWh agrees with 100 M cups / 1 minute / 2 kW, and that comes to about 0.00045%

A much bigger load is the standby consumption of stuff. An alternative to a kettle is a boiling water tap, but they use 10 - 30 W on average without any hot water being dispensed. That is 0.24 to 0.72 kWh per day, or 7 to 21 minutes of a 2 kW kettle per day.

Lots of electronic devices take 1 W or so when doing nothing, and many houses have multiple items like that.

Yep, I realised that a couple of hours after posting. I used the annual number, rather than the day number. And if we then do that maths...

287.58/365
= 0.787890411

so 787.89GWh per day total.

Making 3.3MWh each day two thirds of fuck all...

J
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 12 October, 2021, 05:57:28 am
Don't use a tumble drier. Unless you absolutely need to have your clothes dry in a couple of hours, just hang them up, outside if it's dry, inside if not.
I put my washing out just before 9:00 am yesterday morning in a south-facing garden.
There were very light winds and some broken sunshine. When I retrieved them at 7:00pm
they were still slightly damp. At this time of the year I'll be using the tumble dryer.
Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 12 October, 2021, 07:44:42 am
People who just heat part of their houses: don't you get horrendous damp? ??? Even with a dehumidifier, I can't imagine doing that (admittedly, I live in a wet climate and have to dry all my washing indoors as no garden or tumble drier).
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 12 October, 2021, 07:56:36 am
It is true that you need heating to drive off damp as much as for warmth.  The intermittently-used bedrooms here stay dry, though, so there is probably enough heat soak from other rooms.

I never feel the cold for the first two hours after getting up, so I never have the heating on a timer.  I can get up, light a fire, and the house is warm by the time my Ready Brek glow has faded.  I am lucky with the layout of this house in that one 5.5kW stove heats the whole place, as the stairs come off the lounge.  It also distributes the heat ideally, with cooler bedrooms and the warmest place being the living room.  Insulation is pretty good: there is a porch and a conservatory, meaning no outside doors directly into the house, double glazing (old) and wall and loft insulation to more or less current standards.  Most windows face south.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 12 October, 2021, 09:53:08 am
I agree that the over-run of kettles is insignificant, but you've got a the daily figure wrong. Average use in the UK is around 30 GW, which is around what you said, but that comes to 720 GWh per day, not hundreds of TWh. 3.3 MWh agrees with 100 M cups / 1 minute / 2 kW, and that comes to about 0.00045%

A much bigger load is the standby consumption of stuff. An alternative to a kettle is a boiling water tap, but they use 10 - 30 W on average without any hot water being dispensed. That is 0.24 to 0.72 kWh per day, or 7 to 21 minutes of a 2 kW kettle per day.

Lots of electronic devices take 1 W or so when doing nothing, and many houses have multiple items like that.

Yep, I realised that a couple of hours after posting. I used the annual number, rather than the day number. And if we then do that maths...

287.58/365
= 0.787890411

so 787.89GWh per day total.

Making 3.3MWh each day two thirds of fuck all...


Using this logic, since all individual items is relatively small usage, people may as well do nothing other than cut back on their home aluminium smelting.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 12 October, 2021, 10:04:54 am
To quote Melody Maker from decades ago:

Remember, kids, money doesn't make you happy. 

Big houses, swimming pools, fast cars and endless groupies make you happy.
And that!

(Was it Melody Maker? Not a quote from Damon Albarn or someone?)

But in terms of energy usage, just as with consumption of stuff, the richer you are the more you tend to use. Energy efficiency might be another tale.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 12 October, 2021, 12:31:08 pm
Merino base layers are bloody marvellous. As are merino jumpers. They might cost upwards of £60 a piece but you're getting for comfort in low temperatures. And you take that comfort with you when you go outdoors.

See QGs "being rich" post, although I'd argue most of it is actually "comfortably off" rather than "rich" but that may be a perception difference as to what rich is.

It's like bog roll; if you can buy 1 for a quid, or 20 for a fiver, having the extra 4 quid and storage space for 19 bog rolls means you can benefit from the savings.
You can also stack them up to block out a draught while waiting for a tradesman to come along and sort your draught problem.

Don't use a tumble drier. Unless you absolutely need to have your clothes dry in a couple of hours, just hang them up, outside if it's dry, inside if not.
I put my washing out just before 9:00 am yesterday morning in a south-facing garden.
There were very light winds and some broken sunshine. When I retrieved them at 7:00pm
they were still slightly damp. At this time of the year I'll be using the tumble dryer.

I accidentally put the washing machine on the eco settings, so it took 4 hours to do the towels instead of 1; by the time they were on the line for a bit of wind blow it was getting dark and they still needed 2 hours in the heat pump condensing dryer (see bit about having access to more efficient kit via having access to money/credit) still needed a decent while to dry them.  ON the plus side that heats the room it's in quite well, on the down side the room it's in is a sun porch and therefore although it rose the temperature from 5c to 10c I had to have the leccy heater on in there to get the thing up to operating temperature first and it all promptly buggered off through the windows (the roof was insulated by previous owners)
(see the above in context of not having enough money left to build a proper utility room)

Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 12 October, 2021, 12:59:00 pm
The other thing about tumble dryers is that they are a good alternative to wearing wet clothes.
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 12 October, 2021, 05:31:07 pm
I agree that the over-run of kettles is insignificant, but you've got a the daily figure wrong. Average use in the UK is around 30 GW, which is around what you said, but that comes to 720 GWh per day, not hundreds of TWh. 3.3 MWh agrees with 100 M cups / 1 minute / 2 kW, and that comes to about 0.00045%

A much bigger load is the standby consumption of stuff. An alternative to a kettle is a boiling water tap, but they use 10 - 30 W on average without any hot water being dispensed. That is 0.24 to 0.72 kWh per day, or 7 to 21 minutes of a 2 kW kettle per day.

Lots of electronic devices take 1 W or so when doing nothing, and many houses have multiple items like that.

Yep, I realised that a couple of hours after posting. I used the annual number, rather than the day number. And if we then do that maths...

287.58/365
= 0.787890411

so 787.89GWh per day total.

Making 3.3MWh each day two thirds of fuck all...


Using this logic, since all individual items is relatively small usage, people may as well do nothing other than cut back on their home aluminium smelting.
I don't think that follows, but it's always worth looking at what actually saves power.

1 minute at 2 kW, maybe 4 times a day is an average of 5.5 W. There may well be lots of other things averaging more than that in a house. An incandescent bulb for a couple of hours will use that much.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 12 October, 2021, 06:31:03 pm
I don't think that follows, but it's always worth looking at what actually saves power.

1 minute at 2 kW, maybe 4 times a day is an average of 5.5 W. There may well be lots of other things averaging more than that in a house. An incandescent bulb for a couple of hours will use that much.

Right, so you have 10 devices in your house, where you manage to save 5.5w per day. Thats 55w total. Congrats, you've saved yourself 1.1p per day. Over a whole year, that may be enough to buy a beer.

In the days where a light bulb was 60-100w, then turning it off when you left the room for a few minutes made sense, as that does add up, 10 times quicker. But, cos the EU is pretty damn good, they pushed us to stop using highly inefficient light bulbs, and instead rather than using 60-100w, we're using 5-10w per bulb. We've already made the big leaps in energy efficiency in many cases. It used to be that we were told to turn a TV off completely, and not leave it on standby cos it used so much power. Since 2013 all TV's sold in the EU have had a standby consumption of 1W or less.

Using this logic, since all individual items is relatively small usage, people may as well do nothing other than cut back on their home aluminium smelting.

Yes. One of the biggest mistakes the green campaigns have made is making us believe that our personal choices would be able to make a real difference. Sure I may be able to find a way to save myself 100Wh over a day. I may be able to save a few units of what ever it is my heating comes from by turning the thermostat down and huddling under a blanket to watch the TV. But every single one of them will reduce my quality of life disproportionately to the environmental returns we get. Why would I want to make my home colder, when out the window I can see an Oil refinery[1]. Everything we do in our own homes short of installing a heat pump, and installing fuck tons of insulation. Is marginal gains. 2/3rds of a fuckall here, half a buggerall there. It's a rounding error on a rounding error of a nothingth in the grandscheme of things. And all it does is make us feel miserable to make us feel like we're doing our bit.

This is not the time for individual actions on small scales. We need MASS change across whole of society. By far the biggest user of electricity in the UK is the petrochemical industry[2]. Same as the biggest user of Cobalt is oil refineries. And there we can't recycle it at the end of it's life. This is something that is lost in the "But if we all drive EV's the grid will explode!" arguments. A reduction in oil based fuel consumption, should see a reduction in the need for energy in oil refineries. Will it be 1:1. No idea. But if we can switch off a few oil refineries, it's gonna make a massive improvement.

We're fixated on the whole air travel bad thing, and I must admit I fell for this one big time too. Is air travel horrendously polluting? yep. For many of us, a single flight will be the biggest single emission of CO2 in our year. But, aviation is 2% of global CO2 emissions. If we reduce that by half, that means we've cut global emissions by 1%. Not quite a rounding error, but it's hardly massive. If we can convert Cement, and Ferrous metal production to not rely on fossil fuels, and make them zero emissions. We'll take over 10% off global emissions. At that point things are starting to have a measurable impact.

Make transport zero emission, that's another ~10%. Those heat pumps I talked about making space heating zero emission, that's another ~10%. Now we're at 30%. Now it's starting to make an impact. "But how do we power all this!?". Well I got a radical suggestion: BUILD RENEWABLE ENERGY GENERATION SYSTEMS. We're using about 34GW of power in the UK. The largest wind turbines in the world are 16MW each, even at a capacity factor of 50%, that's 5000 turbines. One every kilometer for a line 500km long, and ten lines in total. Built offshore. Have you seen the size of the offshore wind resources we have? Any spare power can be used to make H². Add a few grid scale batteries. And then, cover the built environment in solar. Look around at all the big flat roofed buildings in our towns and cities. Warehouses, supermarkets, superstores. Cover every square meter that we can with solar. Cover the carparks with solar. Give people free solar on any suitable roof they have. The UK has amazing renewable energy resources available, we just have to use them. And before you all scream "But how are you going to pay for it?". Easy. Tax the fucking rich.

Insulate Britain have got a lot of press, and on the face of it their argument is sound, if we insulated every building in the UK it would improve our energy efficiency. But, I think they'd find a much better impact if they could persuade the government to fund heat pump development. If the UK government was to turn round to industry and say "We'll guarantee the purchase of 10000000 heat pump units, from the first company that can make them for £1000 each." Coupled with a voucher system so that people can have a heat pump fitted to their home and their gas boiler or shitty storage heaters scrapped, for free. The time for piecemeal tinkering was 30 years ago. Now we need big decisive action that will actually have an impact. Shivering in a cold home wrapped in a blanket, having carefully measured out just the right amount of water for your cup of tea, might make you feel like you've done your bit, but really all you're doing is making your own life worse, while letting industry pollute with impunity.

Sorry if that sounds defeatist. But That's the reality. You may save yourself a few quid each year on your bills, but unless you are on a pretty low income, it's unlikely to have a meaningful impact on your bank balance.

J


[1] I can't, there's tree's in the way, and it may be storage rather than a refinery, but you get the idea.
[2] Trying to get reliable source on this, so hold off your [citation needed].
Title: Re: Home energy saving tips /ideas...
Post by: Ian H on 12 October, 2021, 07:51:04 pm
This is a big Victorian house on three floors (plus a cellar) which isn't going to easily be made efficient.  We've zoned the heating so each floor is separately controlled, double-glazed all the sash windows, replaced the one external door with a modern replica which actually seals, and insulated the ceiling of the cellar with not very fire-resistant Cellotex. 

But we have an Aga (it came with the house), though that does mean we don't need a tumble-dryer, just a pulley-operated laundry-maid, and it heats the back half of the house pretty well.

Replacing the 35yr old boiler with a new one (a quarter of the size) made a substantial difference to our bills.

But that's nothing compared to our neighbours who live in a huge, ancient, listed manor house where double-glazing & insulation isn't an option.  During the winter they live in one room with an open fire.
Title: Re: Home energy saving tips /ideas...
Post by: Feanor on 12 October, 2021, 08:08:54 pm
Using this logic, since all individual items is relatively small usage, people may as well do nothing other than cut back on their home aluminium smelting.

Essentially, yes.

There is some saving to be made here and there, eg from bulk-switching from incandescent to low-power LED lights.
But I listened to some wonk from an Energy Saving foundation on R4 a week or so back, being asked how to help reduce bills in the face of increased energy prices.
So, insulate, insulate, insulate. yes. But is that within the remit of the target population struggling with energy bills? Eg. in rented accommodation with a landlord who gives not a fuck?
For others? LED bulbs might make a small difference. Unplugging standby devices? The numbers quoted in the R4 interview suggested that people must have 20 old CRT Tvs on standby.
Most people who can have already taken most of the measures they realistically can, short of making their homes uncomfortable.
And those who have not, for whatever reason, are adding a rounding error to the grand scheme of things.

So yes, the oft-quoted individual measures really do amount to the square root of fuck-all both on your own bills, and on the bigger picture.

Also sorry if this sounds defeatist.


Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 12 October, 2021, 08:11:07 pm
There is some saving to be made here and there, eg from bulk-switching from incandescent to low-power LED lights.
But I listened to some wonk from an Energy Saving foundation on R4 a week or so back, being asked how to help reduce bills in the face of increased energy prices.


That would be BBC More or Less, assuming it's the same program I listened to as well. And where I got the 2013 -> 1W standby number from.

https://www.bbc.co.uk/programmes/m00100jh

J
Title: Re: Home energy saving tips /ideas...
Post by: Feanor on 12 October, 2021, 08:21:58 pm
There is some saving to be made here and there, eg from bulk-switching from incandescent to low-power LED lights.
But I listened to some wonk from an Energy Saving foundation on R4 a week or so back, being asked how to help reduce bills in the face of increased energy prices.


That would be BBC More or Less, assuming it's the same program I listened to as well. And where I got the 2013 -> 1W standby number from.

https://www.bbc.co.uk/programmes/m00100jh

J

I think it's likely the same program. I was in the car, and didn't have a calculator to hand.

It was just that the suggestion was in any way a help to anyone struggling with energy bills that made me prickle.
The guy was being asked what practical measures people ( in particular people struggling with energy bills ) could take in face if increased prices.

Title: Re: Home energy saving tips /ideas...
Post by: arabella on 12 October, 2021, 08:33:23 pm
So, insulate, insulate, insulate. yes. But is that within the remit of the target population struggling with energy bills? Eg. in rented accommodation with a landlord who gives not a fuck?
Indeedy. 
Landlord cares not at all as it's an expense that makes no difference to how much rent they can charge.
Tennant could, with permission, do something but could then be turfed out in favour of another tenant paying a bit more (probably just because, possibly for that beautifully insulated residence).

I don't imagine a system whereby insulation 'investment' depreciates at £x/year (concommittant with the associated savings) and future tenant pays back previous tennant until costs have all been absorbed by savings.  Because it's too complicated.
I'm not sure what the solution is.

And exhalation will always increase the moisture in the air, needing airing to avid damp chill.  etc. thus negating some insulation.  How does a passivhaus maintain its warmth?
Title: Re: Home energy saving tips /ideas...
Post by: Feanor on 12 October, 2021, 08:34:48 pm
Using this logic, since all individual items is relatively small usage, people may as well do nothing other than cut back on their home aluminium smelting.

Essentially, yes.

There is some saving to be made here and there, eg from bulk-switching from incandescent to low-power LED lights.
But I listened to some wonk from an Energy Saving foundation on R4 a week or so back, being asked how to help reduce bills in the face of increased energy prices.
So, insulate, insulate, insulate. yes. But is that within the remit of the target population struggling with energy bills? Eg. in rented accommodation with a landlord who gives not a fuck?
For others? LED bulbs might make a small difference. Unplugging standby devices? The numbers quoted in the R4 interview suggested that people must have 20 old CRT Tvs on standby.
Most people who can have already taken most of the measures they realistically can, short of making their homes uncomfortable.
And those who have not, for whatever reason, are adding a rounding error to the grand scheme of things.

So yes, the oft-quoted individual measures really do amount to the square root of fuck-all both on your own bills, and on the bigger picture.
Mostly tokenism.

Also sorry if this sounds defeatist.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 12 October, 2021, 08:52:19 pm
I have no disagreement that it needs government and not individual action, and indeed moving the onus onto individuals is chapter one of the corporate playbook. Plus entrusting it to individual action is a recipe for inaction because most people's response to something like rising sea-levels would be to complain about the price of wellies.

The flying thing is a good one, since it blended class war into the mix, and even if you're totally against flying, you can always justify special circumstances, do some especially diligent recycling, and issue yourself an indulgence. Plus the middle-classes got to roll their eyes at the annual procession of chavs to Gatwick for their week in Ibiza. Why they can't just go to a local literary festival and camp, I don't know.

That said, it doesn't hurt to turn off a boiling kettle or not take a flight, it shows a degree of acknowledgement that's bereft in the millions who will instead buy the latest SUV. If you can, you should. Because if you won't, who else will. Look, I dunno, I don't want to admit defeat any more than the rest of you. I know it's the square root of fuck all too.

I'm trying not to be pessimistic, but everything regarding climate change at the moment is pessimistic – what someone called straining optimism. The fairly dismal aim for 1.5 degrees is dead at this point, even if we get serious tomorrow, two degrees is looking like the minimum. For the record, 1.5 degrees is catastrophic and not one single country has made any significant progress towards even this lesser goal (which would have required 15% year on year cut starting in 2020, other than a faint dent from Covid, emissions continue to rise). The recovery from Covid hasn't been seized as a way to do things differently, the response is instead to turbocharge our way back to where we were.

The plan the human race has at the moment is that we will invent a magic machine that makes it all go away.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 12 October, 2021, 08:56:30 pm
The plan the human race has at the moment is that we will invent a magic machine that makes it all go away.

With a side order of "Just as long as it's not paid for by public money... "

J
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 12 October, 2021, 09:00:57 pm
One problem with landlords insulating houses is the tenant's toleration of disruption caused by fitting anything worthwhile.  Even extra loft insulation is tricky if the tenant is storing stuff up there, and you can forget internal or external wall insulation.  You can probably get away with new windows and doors.  If it's your own house, you don't mind living in a building site.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 12 October, 2021, 09:10:30 pm
Give everyone a half price or free ASHP and solar PV where applicable. On top of what QG said about the roofs of the notverysupermarches etc. Suddenly all these technologies become cheaper, people are more likely to pay the subsidised cost, everyones got one, the whole 'early adopter' factor goes away.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 12 October, 2021, 09:29:50 pm
Yes, but the government (and not just ours) won't even impose even minimal requirements, even on new builds but they might shave a per cent off the profit margins of the developers to whom they're beholden.

Truth is, we need a 'Manhattan Project,' every country in the world needs one to deal with this on every level and the balls to get industry to start paying. You take oil out of the ground, pay the costs – pollutions, climate change, every single cent to account for that. Not doing so is a massive and destructive subsidy. By allowing the construction of poorly insulated, inefficient homes – of course – it's a similar mechanism of subsidy, and it's paid for by the people who live in them.

Hard choices, of course, and I get no sense we'll make them until it's too late. What government in the world is going to turn around at the end of 2021 and even tell its citizens they can't buy a large car? This isn't even something that will have an impact on their life (they can still buy a car and drive everywhere if they choose) but we can't and won't do it. Factor that across all the lifestyle changes we need to make in the developed world and the scale of the problem should be manifest.

To have any chance of getting back to 1.5-degree rise, we need to reduce global emissions by at least 50% in the next 8 years. There's no political or social will to make this happen. We treat it like any other social ill – we could for instance solve hunger, end poverty, stop homelessness – these are all doable things, and not even expensive things, but we choose not to do them. The difference is that these things, put of out of mind, just happen and they don't affect the rest of us. We can put them aside. Doing that with climate isn't such an option.
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 12 October, 2021, 10:37:16 pm
One problem with landlords insulating houses is the tenant's toleration of disruption caused by fitting anything worthwhile.  Even extra loft insulation is tricky if the tenant is storing stuff up there, and you can forget internal or external wall insulation.  You can probably get away with new windows and doors.  If it's your own house, you don't mind living in a building site.

Extra loft insulation is also of limited value, depending upon what is being stored and how much loft space it occupies. We've got boxes full of old books, GCSE, A level and degree projects up there. On the rare occasions it snows round here, our house generally keeps it on the roof longer than most.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 12 October, 2021, 11:53:00 pm
The thing that always throws me about loft insulation is that Shirley it just exacerbates the upstairs/downstairs temperature difference.
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 13 October, 2021, 07:29:24 am
The thing that always throws me about loft insulation is that Shirley it just exacerbates the upstairs/downstairs temperature difference.
I would have said that is only the case where the upstairs heating isn't separately controlled.

Upstairs will be heated by convection from downstairs, but it can't get hotter than downstairs unless there is a significant upstairs heat source.
Title: Re: Home energy saving tips /ideas...
Post by: ppg on 13 October, 2021, 08:20:24 am
And before you all scream "But how are you going to pay for it?". Easy. Tax the fucking rich.
<United Kingdom
Following the reduction of the top rate of income tax in the UK from 50% to 45% in 2013, HMRC estimated the cost of the tax reduction to be about £100 million (out of an income for this group of around £90 billion), but with large uncertainty on both sides. Robert Chote, the chairman of the UK Office for Budget Responsibility commented that Britain was "strolling across the summit of the Laffer curve", implying that UK tax rates had been close to the optimum rate.[37][38]>

https://en.wikipedia.org/wiki/Laffer_curve

If only slogans solved problems  :)
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 13 October, 2021, 08:47:49 am
There are other taxes aside from income tax.  CGT for instance and tighter control of "reasonable costs" on certain types of spending.

Also tax breaks need to be reviewed objectively as does "Jenrick" interference.

Then there is the recent NI announcement.  Very equitable: load the burden upon the ordinary and young folk whilst continuing to prop up the grey vote.

I am always amazed how ordinary and even quite intelligent people seem to think that low revenue collection for the wealthy results in a fairer if more unequal society.
Title: Re: Home energy saving tips /ideas...
Post by: nobby on 13 October, 2021, 08:50:43 am

If only slogans solved problems  :)

:thumbsup:
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 13 October, 2021, 09:18:45 am
Quote
"But how are you going to pay for it?". Easy. Tax the fucking rich.

Hmm. I don't think that will work. If by 'the rich' you mean corps like Apple, Amazon etc, then I absolutely agree. They are a tick on every country in the world.

We need to make building offshore wind (and PV) a more attractive business than sucking oil out from the sea bed.

The cost of building offshore oil rigs is immense, they are incredibly ugly and the decommissioning is expensive and easily polluting. The 'nudge point' of making offshore wind a more attractive business can't be far off. I think it was BP that paid a record price for licence to build wind in an area. Just a little push more . . .
Title: Re: Home energy saving tips /ideas...
Post by: ppg on 13 October, 2021, 09:26:20 am
Quote
"But how are you going to pay for it?". Easy. Tax the fucking rich.

Hmm. I don't think that will work. If by 'the rich' you mean corps like Apple, Amazon etc, then I absolutely agree. They are a tick on every country in the world.

We need to make building offshore wind (and PV) a more attractive business than sucking oil out from the sea bed.

Well it certainly didn't for Wilson/Healey though it did produce Exile on Main Street* so they can be forgiven  :)

Offshore wind certainly, but with massive investment in storage as demonstrated recently when the output fell to close to nothing. EVs? H2?


* OK not quite the same period, same policy though

Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 13 October, 2021, 09:30:24 am
One of the benefits of the current high wholesale prices is that new build unsubsidised solar and wind projects now make financial sense.   Masses of projects that were on the shelf are now rolling out to financial close.

Big problem for solar now will be getting the panels out of China to where they are needed on the ground.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 13 October, 2021, 09:40:06 am
Quote
"But how are you going to pay for it?". Easy. Tax the fucking rich.

Hmm. I don't think that will work. If by 'the rich' you mean corps like Apple, Amazon etc, then I absolutely agree. They are a tick on every country in the world.

We need to make building offshore wind (and PV) a more attractive business than sucking oil out from the sea bed.

The cost of building offshore oil rigs is immense, they are incredibly ugly and the decommissioning is expensive and easily polluting. The 'nudge point' of making offshore wind a more attractive business can't be far off. I think it was BP that paid a record price for licence to build wind in an area. Just a little push more . . .

There's a simple solution to that – I mentioned it earlier – if you want to suck oil out of the ground or seabed fine, but pay the actual costs.

Taking it out of the ground immediately becomes economically unsustainable – and this is the true picture, fossil fuel is only a profitable business because the producers don't pay for anything, not even the immediate problems burning them causes. If you are in hospital with asthma because you live by a busy road, they're not paying the bills. And, of course, they're not paying for the cost of climate change. When you burn fuel, you are now passing a non-negotiable IOU to your kids, for an unspecified amount that's payable at an unspecified time.

On a wide scale, and with some irony, capitalism is only successful because we subsidise it. Carmakers wouldn't go far if we didn't build roads, for instance. Taxing the rich mostly doesn't work, they're mobile, there's not many of them, and they have lots of lawyers. Corporates need governments, however.

Anyway, paying the real costs of fossil fuel would, of course, completely change the economics of renewals, they'd be an order of magnitude cheaper. You can imagine why the fossil fuel industry aren't keen on this.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 13 October, 2021, 09:51:43 am
Quote
"But how are you going to pay for it?". Easy. Tax the fucking rich.

Hmm. I don't think that will work. If by 'the rich' you mean corps like Apple, Amazon etc, then I absolutely agree. They are a tick on every country in the world.

We need to make building offshore wind (and PV) a more attractive business than sucking oil out from the sea bed.

Well it certainly didn't for Wilson/Healey though it did produce Exile on Main Street* so they can be forgiven  :)

Offshore wind certainly, but with massive investment in storage as demonstrated recently when the output fell to close to nothing. EVs? H2?


* OK not quite the same period, same policy though

Building storage is where the government should be stepping in. We need storage.

The chances of them doing this? Somewhat less than Nil. They didn't even want to pay to maintain existing gas storage, and look where that has got us.
Title: Re: Home energy saving tips /ideas...
Post by: ppg on 13 October, 2021, 10:12:14 am
They didn't even want to pay to maintain existing gas storage, and look where that has got us.
Certainly with hindsight a mistake.
AIUI the driver was our ability to import huge volumes of LNG from Qatar & other places (20% of total gas usage in 2019) and not be reliant on Vlad which does make sense. Shame about the global shortage of LNG
Title: Re: Home energy saving tips /ideas...
Post by: perpetual dan on 13 October, 2021, 09:24:54 pm
A more mundane question, that’s probably a bigger effect than carefully measuring water for the kettle, while still firmly being in the things I can do - assuming I’ve changed where my pension is invested...

We have a three story terraced house, with a fairly new boiler and mostly thermostatic valve radiators (no zones though). This worked well enough when we were at school and work during the day and used all the floors in the evening / night. Now, with one at university and variable levels of home working, we’re looking at a winter when one or two rooms will be occupied during the day for a lot of the time. This is compounded by Mrs Dan having a colder room to work in.

Fiddling with 10 radiator valves twice a day will be a massive faff. Installing zoned heating probably disruptive and expensive, and running hot water round the pipes probably has some losses. Would a small electric fan heater make economic and carbon sense?
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 13 October, 2021, 09:35:32 pm
A more mundane question, that’s probably a bigger effect than carefully measuring water for the kettle, while still firmly being in the things I can do - assuming I’ve changed where my pension is invested...

We have a three story terraced house, with a fairly new boiler and mostly thermostatic valve radiators (no zones though). This worked well enough when we were at school and work during the day and used all the floors in the evening / night. Now, with one at university and variable levels of home working, we’re looking at a winter when one or two rooms will be occupied during the day for a lot of the time. This is compounded by Mrs Dan having a colder room to work in.

Fiddling with 10 radiator valves twice a day will be a massive faff. Installing zoned heating probably disruptive and expensive, and running hot water round the pipes probably has some losses. Would a small electric fan heater make economic and carbon sense?

"It depends"

I need more data to be able to judge. I'm leaning towards probably not. But I'd need to do maths based on actual device and your energy prices to say one way or the other.


J
Title: Re: Home energy saving tips /ideas...
Post by: Paul H on 13 October, 2021, 10:22:06 pm
Would a small electric fan heater make economic and carbon sense?
In my opinion, based on having tried quite a few rathe than any expertise, the best portable electric room heater is an oil filled radiator. 
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 13 October, 2021, 10:33:31 pm
Smart TRV's, Dan?
Title: Re: Home energy saving tips /ideas...
Post by: perpetual dan on 13 October, 2021, 11:39:13 pm
J: I could probably do the maths, though i'd have to watch the smart meter a bit to extract useful numbers. I wondered whether there was a generally known except by me rule of thumb on this.

Paul: Thanks. At first glance it sounds like oil filled radiators need some planning for warm up, rather than being an easy top up without nudging the heating on. But worth a look.

Mrs P: Smart TRVs are going to bump the price up a bit! Quite apart from any internet of shit concerns - i don't need a power cut somewhere else bringing our heating down.
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 14 October, 2021, 12:16:17 am
Mrs P: Smart TRVs are going to bump the price up a bit! Quite apart from any internet of shit concerns - i don't need a power cut somewhere else bringing our heating down.
The Honeywell Evohome valves will do timed temperature in zones to a 7 day schedule without needing internet. You can make adjustments on the app, but you can also do that on the control panel, so a power cut elsewhere won't stop it. When we had broadband down for a week or so, the only thing effect I noticed on the heating was an email telling me that the system had lost connection, and another saying it was back when we got broadband back.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 14 October, 2021, 12:33:52 am
Problem with smart TRVs seems to be that if you can feed them mains power and/or wired networking you can do it properly with a dumb actuator. The smart options are all battery powered, which rules out WiFi connectivity, and means they use something like BLE or Zigbee, so you need a bridge device too, and now you have three problems.

One that can function as a sufficiently clever timer may be a better approach.
Title: Re: Home energy saving tips /ideas...
Post by: lissotriton on 14 October, 2021, 02:53:09 am
If you are sitting at a desk, a little tube heater underneath can make you a lot more comfortable. They are pretty low power, maybe 100W, and quick to warm up.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 14 October, 2021, 07:45:25 am
Problem with smart TRVs seems to be that if you can feed them mains power and/or wired networking you can do it properly with a dumb actuator. The smart options are all battery powered, which rules out WiFi connectivity, and means they use something like BLE or Zigbee, so you need a bridge device too, and now you have three problems.

One that can function as a sufficiently clever timer may be a better approach.

We have one bedroom that is used for about an hour every day, at pretty much the same time (I think my wife does yoga in there  ::-)) - rest of the time the door is closed.  What we have done is fit a timer/TRV (eqiva ModelN) - what that does is just open/close the radiator at the set times - thus if the CH is on and the remainder of the house themostat is calling for heat the "yoga studio" will have some heat just at the appropriate. 

It worked a treat last winter - the overall CH/HW (one zone CH) is controlled with Hive* which obviously makes it easy to to set time periods and switch the CH on/off.

Given the way that we use the house (4 bed, 2 storey - and just 2 of us) I'm probably going to get 2 more of the valves to control 2 rooms.  One room downstairs is seldom used and the 2nd bedroom is only used as my wife's dressing room earlier in the morning and later at night.

*I did try a Hive controlled thermosatic valve about 15 months ago but it turned out to be not fit for purpose - read the reviews! and it was sent back for a refund. 
On the face of it the Hive valves would have been the answer to be able to create "zones" in various rooms with time periods that fitted within the overall CH on period.   I may look again to see if there are any improvements to the valves.  It's a pity it didn't work as the Hive plug/sockets are brilliant ... we have a coffee machine on one and some technology kit has the power switched off overnight and back on in the morning.
 
Title: Re: Home energy saving tips /ideas...
Post by: ian on 14 October, 2021, 09:41:34 am
I have an oil-filled radiator under my desk (my office has five external walls, two of which are mostly glass). It's a million years old and I've named it Toasty MacDimplex and he does the job. Though with my wife working at home, I have to do it secretly or she'll want the heating on (her office is upstairs and doesn't get so cold, we have a very well insulated loft, so warmth sits up there, pretty much all the radiators up there are thermostated right down because I'm a cool sleeper).

No point with zones or fancy here, the cats leave all the doors open, and I tend to free-range about the house. We had zones in our last place and never much used them, but it was narrow-ish three-storey place and heat just went straight up the stairwell. Cats and doors again.
Title: Re: Home energy saving tips /ideas...
Post by: nobby on 14 October, 2021, 12:31:37 pm

The chances of them doing this? Somewhat less than Nil. They didn't even want to pay to maintain existing gas storage, and look where that has got us.
The things that governments pay for are payed for with our taxes. Surely, if the majority of the electorate doesn't want their taxes spent on something and the government goes ahead, it becomes the opposition without the power to do anything?
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 14 October, 2021, 01:22:25 pm
Just checked temp in my office. 16C

I'm sat here with a jumper on, perfectly comfortable.

We overheat our houses.
Title: Re: Home energy saving tips /ideas...
Post by: rafletcher on 14 October, 2021, 01:34:16 pm
Just checked temp in my office. 16C

I'm sat here with a jumper on, perfectly comfortable.

We overheat our houses.

More to the point, most of us live in houses much larger than necessary for our basic needs.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 14 October, 2021, 02:45:47 pm

The chances of them doing this? Somewhat less than Nil. They didn't even want to pay to maintain existing gas storage, and look where that has got us.
The things that governments pay for are payed for with our taxes. Surely, if the majority of the electorate doesn't want their taxes spent on something and the government goes ahead, it becomes the opposition without the power to do anything?

Government spending isn't really paid for by taxes (taxes basically provide collateral for borrowing, but it's more complicated than that) and I doubt the electorate is qualified to contemplate gas storage needs or that it featured highly in their election day thoughts.

As mentioned, the local gas storage things disappeared a while back, the sites unsurprisingly sold off cheap to developers (cheap because contaminated, though it didn't seem to stop them building blocks of £750k flats in short order).

In other news, I don't like being below 20 degrees, so I look forward to the heating coming on. That said, it's about 19.5 degrees in my office today, so I'm only teetering on the edge of hypothermia.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 14 October, 2021, 03:01:29 pm
Just checked temp in my office. 16C

I'm sat here with a jumper on, perfectly comfortable.

We overheat our houses.

More to the point, most of us live in houses much larger than necessary for our basic needs.
Unfortunately, the nicer streets are all big houses.  You have to buy a big house to avoid the kind of neighbours I have!
Title: Re: Home energy saving tips /ideas...
Post by: ppg on 14 October, 2021, 03:09:39 pm
Quote
We overheat our houses.
We is all different, even within one household

As an example - I am, of course, totally normal, #1 son was (and still is) an eskimo but Mrs ppg & #2 son are orchids

Setting the temperatures back in the day required some juggling.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 14 October, 2021, 03:32:15 pm
The cost of building offshore oil rigs is immense, they are incredibly ugly and the decommissioning is expensive and easily polluting. The 'nudge point' of making offshore wind a more attractive business can't be far off. I think it was BP that paid a record price for licence to build wind in an area. Just a little push more . . .

The East Coast of Scotland... there is a shit load of near shore wind schemes in the planning on top of the capacity already built.

https://www.offshorewindscotland.org.uk/forth-tay-offshore/
(https://www.offshorewindscotland.org.uk/media/1255/fto-map.png)

The North Sea is well set for it, relatively shallow waters means not too expensive to get the foundations in and plenty of wind.
When floating turbines prove themselves in the North Sea, then the wind capacity of the Atlantic is there for the taking.

Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 14 October, 2021, 03:44:32 pm
Just checked temp in my office. 16C

I'm sat here with a jumper on, perfectly comfortable.

We overheat our houses.

That's comfortable for you. That is seriously fucking cold for an indoor space for me. I would be entirely non functional in such a space.

We do not over heat out houses. Some people just have different temperatures that they find comfortable.

J
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 14 October, 2021, 03:49:04 pm
Just checked temp in my office. 16C

I'm sat here with a jumper on, perfectly comfortable.

We overheat our houses.

That's comfortable for you. That is seriously fucking cold for an indoor space for me. I would be entirely non functional in such a space.

We do not over heat out houses. Some people just have different temperatures that they find comfortable.

J
I live with someone who is 'cold' compared to me. We dress very differently; there are times when I'm sat in a T shirt and jeans - she looks relatively lightly dressed, but is wearing wool base layer, leggings, wool dress and an open cardigan/throw.

It would be interesting to see if you were comfortable, dressed similarly, in similar temps.

Quite a lot of us folk who enjoy type two fun, and own the right clothing, don't use that clothing when in our domestic setting.
Title: Re: Home energy saving tips /ideas...
Post by: Feanor on 14 October, 2021, 03:50:07 pm
For me it also depends on what you are doing.
If I am sitting still in front of a laptop for hours, then I will chill down more than if I'm up and moving around.

Luckily, I use my den as my WfH space, and it has all the IT kit in it so stays at a comfortable temperature anyways.

I really don't want to be sitting around at home in the same kit I'd be wearing outdoors halfway up a mountain.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 14 October, 2021, 03:55:53 pm

I accidentally put the washing machine on the eco settings, so it took 4 hours to do the towels instead of 1

This type of thing is another issue which highlights something that prevents widespread effective steps being taken to save energy. That is, people don't really understand science. On a discussion like this, in this kind of place, it tends to be amongst informed people. But, I would consider Mrs Ham to be an intelligent, well informed person. However, she struggles mightily with the idea that a longer cycle will use less energy than a shorter one. As she does with the flow reducers on modern taps (our hot water cylinder is a long way away from the kitchen). A new tap now takes much longer to run hot - "how can it save water? It's running down the drain for much longer". 

It matters not a jot what the science is, the real world is mostly occupied by people who really do not understand, so making wrong choices is not their fault along people who _won't_ understand always choosing what they perceive as the best option for them personally in the short term, regardless of whether it is or not. You don't have to look further than the recent car fuel "crisis" at those who can't drive with a lighter right foot.

Doomed we are, doomed.

Title: Re: Home energy saving tips /ideas...
Post by: Feanor on 14 October, 2021, 04:12:15 pm
But the issue you highlight here is quite significant.

Some of the so-called 'eco' measures applied to domestic appliances etc are really just greenwash.

Eg 'saving water': toilet flush becomes inadequate to clear the bowl, so this can result in double-flushing as often as not.
Flow reducers on taps? Those things that fluff the water up with air? Why? If I turn the tap on, it's because I want water, not air. I can adjust the flow as necessary.
Wash cycles of several hours: what do they actually achieve? Lower wash temps will use marginally less power, I suppose.

It just seems to me that a lot of this stuff is tokenism that increases inconvenience disproportionately to any actual benefit.

Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 14 October, 2021, 04:34:12 pm
But the issue you highlight here is quite significant.

Some of the so-called 'eco' measures applied to domestic appliances etc are really just greenwash.

Eg 'saving water': toilet flush becomes inadequate to clear the bowl, so this can result in double-flushing as often as not.
Flow reducers on taps? Those things that fluff the water up with air? Why? If I turn the tap on, it's because I want water, not air. I can adjust the flow as necessary.
Wash cycles of several hours: what do they actually achieve? Lower wash temps will use marginally less power, I suppose.

It just seems to me that a lot of this stuff is tokenism that increases inconvenience disproportionately to any actual benefit.

Long wash cycles usually have pauses, allowing the clothes to soak in the wet detergent.
Lower temperatures, not turning the drum as much; less energy used.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 14 October, 2021, 05:00:24 pm
Just checked temp in my office. 16C

I'm sat here with a jumper on, perfectly comfortable.

We overheat our houses.

I can be sat in the same room as Pingu who is wearing shorts, I'll be wearing a fleece zipped up to my chin (and sometimes have the hood up), be sitting under a fleece blanket folded in half from my toes to my oxters, have a couple of feline hot water bottles sat on my lap or next to my legs and still have a nose and fingers like some meat that's been in the fridge.
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 14 October, 2021, 05:17:32 pm
I am of the view that the house should be neither hot nor cold.   Modest warmth helps keep dampness and mould at bay but also we need to allow fresh air to circulate on a regular basis.

I don't see the issue of wearing a fleece and wonder just how wasteful an extra 2 or 3 degrees on the thermostat costs in terms of burnt fuel and environmental impact let alone 5 or 6!

One thing that lockdown saved me from was visiting people who insist on running the house at temperatures warmer than most English summer days: and yet, we don't have the heating on for at least half of the year.  Once dressing for outdoors it's quite a game to peel off numerous layers without appearing rude!
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 14 October, 2021, 05:23:51 pm
Just checked temp in my office. 16C

I'm sat here with a jumper on, perfectly comfortable.

We overheat our houses.

That's comfortable for you. That is seriously fucking cold for an indoor space for me. I would be entirely non functional in such a space.

We do not over heat out houses. Some people just have different temperatures that they find comfortable.

J
I live with someone who is 'cold' compared to me. We dress very differently; there are times when I'm sat in a T shirt and jeans - she looks relatively lightly dressed, but is wearing wool base layer, leggings, wool dress and an open cardigan/throw.

It would be interesting to see if you were comfortable, dressed similarly, in similar temps.

Quite a lot of us folk who enjoy type two fun, and own the right clothing, don't use that clothing when in our domestic setting.

I'll weigh in with room at 21.4C, feeling on the warm side of comfortable (borderline sweaty) in technical jeans, t-shirt and fleece.  My fingers are almost but not quite painfully cold and I'm alternating between keyboard and sitting on them.

When I'm participating in Type 2 Fun, I tend to be generating enough heat to warm my extremities (and - crucially - I have a much higher tolerance for feeling uncomfortably hot when exercising).  When sat at the computer, I don't.

If the temperature were in the 23-24C range, I'd feel hot, would wear less clothing, and my fingers would be fine.  Sleep would be difficult.

I don't think humans were designed for sitting at computers.

(Thermostat is set to 20C (more usually 19C, but barakta's living downstairs atm), and I sit on my hands all winter.)
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 14 October, 2021, 05:38:36 pm
The cost of building offshore oil rigs is immense, they are incredibly ugly and the decommissioning is expensive and easily polluting. The 'nudge point' of making offshore wind a more attractive business can't be far off. I think it was BP that paid a record price for licence to build wind in an area. Just a little push more . . .

The East Coast of Scotland... there is a shit load of near shore wind schemes in the planning on top of the capacity already built.

https://www.offshorewindscotland.org.uk/forth-tay-offshore/
(https://www.offshorewindscotland.org.uk/media/1255/fto-map.png)

The North Sea is well set for it, relatively shallow waters means not too expensive to get the foundations in and plenty of wind.
When floating turbines prove themselves in the North Sea, then the wind capacity of the Atlantic is there for the taking.

That nice Mr Trump is none too keen on those "windmills" interfering with the vista from his golf course near Aberdeen.

To me the offshore fans are rather graceful, the on tops of hills ones not quite so good and can be a bit noisy.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 14 October, 2021, 06:15:31 pm
Just checked temp in my office. 16C

I'm sat here with a jumper on, perfectly comfortable.

We overheat our houses.

That's comfortable for you. That is seriously fucking cold for an indoor space for me. I would be entirely non functional in such a space.

We do not over heat out houses. Some people just have different temperatures that they find comfortable.

J
I live with someone who is 'cold' compared to me. We dress very differently; there are times when I'm sat in a T shirt and jeans - she looks relatively lightly dressed, but is wearing wool base layer, leggings, wool dress and an open cardigan/throw.

It would be interesting to see if you were comfortable, dressed similarly, in similar temps.

Quite a lot of us folk who enjoy type two fun, and own the right clothing, don't use that clothing when in our domestic setting.

I'll weigh in with room at 21.4C, feeling on the warm side of comfortable (borderline sweaty) in technical jeans, t-shirt and fleece.  My fingers are almost but not quite painfully cold and I'm alternating between keyboard and sitting on them.

When I'm participating in Type 2 Fun, I tend to be generating enough heat to warm my extremities (and - crucially - I have a much higher tolerance for feeling uncomfortably hot when exercising).  When sat at the computer, I don't.

If the temperature were in the 23-24C range, I'd feel hot, would wear less clothing, and my fingers would be fine.  Sleep would be difficult.

I don't think humans were designed for sitting at computers.

(Thermostat is set to 20C (more usually 19C, but barakta's living downstairs atm), and I sit on my hands all winter.)
Defo. As I said way back on p2, it's all about physical movement, which is kind of difficult when you're sitting at a desk. I imagine it was even worse in the pre-computer days when you had to hold a pen for hours on end.
Title: Re: Home energy saving tips /ideas...
Post by: lissotriton on 14 October, 2021, 06:24:37 pm
Fingerless gloves or wrist warmers can help for sitting at a computer.
Or anyone tried a heated mouse mat / keyboard?
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 14 October, 2021, 06:59:58 pm
Fingerless gloves or wrist warmers can help for sitting at a computer.
Or anyone tried a heated mouse mat / keyboard?

Tried the fingerless thing. Doesn't help, it just means that less of the hand is too cold to use.

Heated keyboard? sure, just open chrome and let it abuse all the laptop's cpu cycles :p

Right now my flat is 23°C. It's a comfortable temp for me. I can feel my feet and my hands. i can think.

My bedroom is about 21°C. Any colder and I find it very hard to get out of bed in the morning.

J
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 14 October, 2021, 07:02:02 pm

I accidentally put the washing machine on the eco settings, so it took 4 hours to do the towels instead of 1

This type of thing is another issue which highlights something that prevents widespread effective steps being taken to save energy. That is, people don't really understand science. On a discussion like this, in this kind of place, it tends to be amongst informed people. But, I would consider Mrs Ham to be an intelligent, well informed person. However, she struggles mightily with the idea that a longer cycle will use less energy than a shorter one. As she does with the flow reducers on modern taps (our hot water cylinder is a long way away from the kitchen). A new tap now takes much longer to run hot - "how can it save water? It's running down the drain for much longer". 

It matters not a jot what the science is, the real world is mostly occupied by people who really do not understand, so making wrong choices is not their fault along people who _won't_ understand always choosing what they perceive as the best option for them personally in the short term, regardless of whether it is or not. You don't have to look further than the recent car fuel "crisis" at those who can't drive with a lighter right foot.

Doomed we are, doomed.

It's autumn, in Scotland
The towels had to go in the dryer because after 4 hours there was no hope they were going to be dried on the line. It was dark and calm.
Had I used the 1hr cycle given the running cost differential between the washer and the dryer and the whirly, 1hr washer + 4hrs whirly + 20m dryer < 4hrs washer + 3hrs dryer

Washing is a series of events that all have their own cost to reach the same outcome. 
Using the cheapest setting on all devices is not necessarily cheaper than getting one phase done quickly at higher cost and then the next event having a grand cost of £0

In a few weeks time it will almost certainly cheaper to use the cheapest setting for all events because it'll be dark, wet and cold which negates the fact it will also be blowing a hoolie (aka a double pegger day in these parts).

That nice Mr Trump is none too keen on those "windmills" interfering with the vista from his golf course near Aberdeen.

To me the offshore fans are rather graceful, the on tops of hills ones not quite so good and can be a bit noisy.

Aye He's nae an he wiz telt tae ram it.



Room temp:
Hoose thermostat is set to 18/19 for the bedroom (on the north wall)
Radiators set to get the office room up to 20ish (It gets to 23 if it's sunny as it's on a south wall... I could do with a more advanced TRV in here)
I wear thin merino or thick lambswool jumpers all year, and cords. (no I am not a geography teacher)

Title: Re: Home energy saving tips /ideas...
Post by: Kim on 14 October, 2021, 08:12:43 pm
My bedroom is about 21°C. Any colder and I find it very hard to get out of bed in the morning.

21C is my upper limit for a decent night's sleep.

16C is my lower limit for avoiding long-term decline in control of my asthma.  (In the absence of infection or whatever I can go a few nights at much lower temperatures, and it gets most of the way to zero before the cold triggers asthma attacks on its own[1].)

I've yet to experience a temperature that makes getting out of bed in the morning easy...


[1] Turns out you can't insulate yourself out of breathing cold air, see above re: type 2 fun.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 14 October, 2021, 08:18:41 pm
I've yet to experience a temperature that makes getting out of bed in the morning easy...

It's never easier. But it's less hard at 21°C than it is at 16°C or 10°C.

I spent too many winters where with heating on maxed out the place I lived was 10-12°C in the middle of winter. Just the idea of being back to that gives me a panic attack.

J
Title: Re: Home energy saving tips /ideas...
Post by: perpetual dan on 14 October, 2021, 08:33:52 pm
Fingerless gloves or wrist warmers can help for sitting at a computer.
Or anyone tried a heated mouse mat / keyboard?

I think fingerless gloves on video calls will erode people's respect.

My question was more for Mrs Dan, who feels the cold more than me (the other day she was in layers, warm jumper, leggings, slippers and cold; i was in a t shirt and barefoot and comfortable). An efficient way to boost the heat around her is what i was after - your tube heater idea sounded interesting.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 14 October, 2021, 08:35:04 pm
At one place in far off Eastern Poland, one of my colleagues was an impecunious young woman straight out of uni, who was renting a room off an old woman in the Old Town. The buildings in that district had heating systems installed in the renovations post-WW2, which means a solid fuel (ideally coal but could be wood or more frequently rubbish) tiled stove in the corner. No central heating system, no radiators. This old lady's only source of income besides whatever she got in rent was a widow's pension, probably about 500zl a month (just under £100). Even 20 years ago, even in far off easternest Eastern Poland, that wasn't very much, so she couldn't afford much coal. And the winters could be subzero for a few months at a time. My colleague informed me that when the indoor temperature is 12 degrees, you (ie she) can still work, but when it gets down to 8, it's impossible.
Title: Re: Home energy saving tips /ideas...
Post by: fd3 on 16 October, 2021, 01:23:26 pm
I would say don't use the oven, as it seems to me it uses a lot of fuel compared to other methods of cooking.

That's pretty hair-shirt, even by the standards of this thread.
Making bread over a hotel-issue milliwatt iron is going to be somewhat challenging.

And it's misguided. Running the oven for an hour, is about 2.5kwh of energy (based on googling how much energy does an oven use). Which if the oven was out in the garden, would result in 2.5Kwh of energy lost to atmosphere, plus dinner. But your oven is in the kitchen, so running the oven for an hour puts 2.5kwh of energy into the kitchen in the form of warmth. And produces dinner. Saving you the need for 2.5kwh of heating in that room. It's a win win.

J
True.  So looking to your point on using a drier, it will warm your house as it dries your clothes, reducing your heating bills.
(we have the drier in #1 son's bedroom to maximise heat in the house.  Obvs we don't use it in the summer because we aren't mental)
Title: Re: Home energy saving tips /ideas...
Post by: lissotriton on 16 October, 2021, 01:46:25 pm
True.  So looking to your point on using a drier, it will warm your house as it dries your clothes, reducing your heating bills.
(we have the drier in #1 son's bedroom to maximise heat in the house.  Obvs we don't use it in the summer because we aren't mental)
Depends on what sort of tumble dryer. A regular, cheap vented tumble drier is dumping the hot air outside. So that is just wasted energy.
If you have a heat pump tumble dryer, that should use much less electricity, and the heat should mostly be staying inside.
Title: Re: Home energy saving tips /ideas...
Post by: fd3 on 16 October, 2021, 03:26:36 pm
Merino base layers are bloody marvellous. As are merino jumpers. They might cost upwards of £60 a piece but you're getting for comfort in low temperatures. And you take that comfort with you when you go outdoors.
See QGs "being rich" post, although I'd argue most of it is actually "comfortably off" rather than "rich" but that may be a perception difference as to what rich is.
I'd say it's "prioritising" as much/more than being rich.  Buy one top or buy 6 disposable ones from Primark?  It's a choice.  Buy cheap now or wait and buy better?  It's a choice.  Are you going to get your car on finance or your A++ rated appliances?  It's a choice.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 16 October, 2021, 05:55:01 pm
I'd never heard of the heat pump dryers until this thread. Every day's a school day.
Title: Re: Home energy saving tips /ideas...
Post by: Lightning Phil on 16 October, 2021, 06:00:19 pm
Warm part of house is 17C in winter.  We always have the windows open in the bedroom unless rain or snow blowing in.  Don’t measure temp but prefer it cool with fresh air for sleeping.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 16 October, 2021, 06:07:07 pm
I'd say it's "prioritising" as much/more than being rich.  Buy one top or buy 6 disposable ones from Primark?  It's a choice.  Buy cheap now or wait and buy better?  It's a choice.  Are you going to get your car on finance or your A++ rated appliances?  It's a choice.

It's only a choice if you have the money, and the financial savvy to be able to make it. If you're on Universal credit and just had your benefits cut, then saving up for a 60 quid merino top is going to take a long time, and may mean a few days being hungry.

See Sam Vime's theory.

A nice wool jumper, that is made of actual wool, and not acrylic, is *REALLY* expensive these days.

True.  So looking to your point on using a drier, it will warm your house as it dries your clothes, reducing your heating bills.
(we have the drier in #1 son's bedroom to maximise heat in the house.  Obvs we don't use it in the summer because we aren't mental)

Except as others have already said, if it's the older style that vents outside. In which case it's wasted.

It's autumn, in Scotland
The towels had to go in the dryer because after 4 hours there was no hope they were going to be dried on the line. It was dark and calm.
Had I used the 1hr cycle given the running cost differential between the washer and the dryer and the whirly, 1hr washer + 4hrs whirly + 20m dryer < 4hrs washer + 3hrs dryer

I took my towel out of the washing machine and hung it up in the unheated bathroom (it get's most of it's warmth from the Kitchen, which has the radiator on low, and primarily gets heated by me making dinner). Do that at about 2200 when I hang the washing up. It's dry when I shower the next morning at about 9ish. The rest of the laundry gets hung on a rack that hangs over the front of my bedroom door. Again, hang stuff up about 2200ish, and it's dry by morning. In winter I sometimes put stuff on the radiator, usually things that are awkward, like my cycling gloves.

Humidity in my flat currently is 47.4%, and in the middle of winter with snow on the ground it gets to about 30%.

<United Kingdom
Following the reduction of the top rate of income tax in the UK from 50% to 45% in 2013, HMRC estimated the cost of the tax reduction to be about £100 million (out of an income for this group of around £90 billion), but with large uncertainty on both sides. Robert Chote, the chairman of the UK Office for Budget Responsibility commented that Britain was "strolling across the summit of the Laffer curve", implying that UK tax rates had been close to the optimum rate.[37][38]>

https://en.wikipedia.org/wiki/Laffer_curve

If only slogans solved problems  :)

Right, now tax Facebook, and Amazon, and Google, and all the other fucking huge firms that pay less in tax in the UK, than I pay VAT on hygiene products. Oh, and while you're at it stop fucking subsidising the fossil fuel industry.

Then, when we've done that, seize the assets of any individual with worth over 1B, They can keep the first £99999999. But they really don't need the rest.

See QGs "being rich" post, although I'd argue most of it is actually "comfortably off" rather than "rich" but that may be a perception difference as to what rich is.

Yes, on a global scale, anyone posting to this forum is Rich... Even in the UK, if you have food in your kitchen, a warm house, and comfortable clothes, and discretionary spending money each month, you're doing better than several million of our fellow citizens. But yes, comfortably off is probably a good description.

J
Title: Re: Home energy saving tips /ideas...
Post by: fruitcake on 16 October, 2021, 06:20:16 pm
I reckon the concept I'm going to call 'micro-heating' will catch on. This is a bit like the idea that you don't have to heat the entire house to be comfortable. Only, this is a step further. You don't have to heat the whole room to stay comfortable. Electric blankets are an example of micro-heating. As are heated car seats. There are companies which have designed living room chairs with heating elements.

I have an oil-filled radiator under my desk...
I'd say that's an implementation of micro-heating, because it places the heat where it's needed and the desktop here is a 'hood' to stop (some of) the heat escaping.

You can also warm the touch points. There are heated computer keyboards, and heated mice, for instance.

Heated gilets warm just the areas of the body that get cold first, i.e. kidneys and lower back. They're now available in designs that look like normal clothes, and they take USB power in (rather than the early ones which were designed specifically for builders and motorcyclists and required specialist batteries.)

I think we'll see more of this kind of stuff. Electric elements allow designs that isolate heat to an extent that's just not possible with coolant-filled radiators. And I hope we do see more innovation in this direction. A fringe benefit is that it's portable. You can set up office in places you couldn't otherwise.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 16 October, 2021, 06:22:37 pm
I'd never heard of the heat pump dryers until this thread. Every day's a school day.
The are notorious for taking forever to dry anything.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 16 October, 2021, 06:24:55 pm
I'd never heard of the heat pump dryers until this thread. Every day's a school day.
The are notorious for taking forever to dry anything.

I thought that was condensing tumble dryers.
Title: Re: Home energy saving tips /ideas...
Post by: fd3 on 16 October, 2021, 06:30:53 pm
I'd say it's "prioritising" as much/more than being rich.  Buy one top or buy 6 disposable ones from Primark?  It's a choice.  Buy cheap now or wait and buy better?  It's a choice.  Are you going to get your car on finance or your A++ rated appliances?  It's a choice.

It's only a choice if you have the money, and the financial savvy to be able to make it. If you're on Universal credit and just had your benefits cut, then saving up for a 60 quid merino top is going to take a long time, and may mean a few days being hungry.

Sure, but you have to mean only the extremely poor and you still have to qualify that with lack of financial savvy.
If you are a two person household where both of you work at the checkout in Sainsbury’s you would not count as poor by this reckoning.  You would really need to be a single parent working as a part time dinner lady in school to qualify.
Title: Re: Home energy saving tips /ideas...
Post by: Feanor on 16 October, 2021, 06:53:18 pm
I'd never heard of the heat pump dryers until this thread. Every day's a school day.
The are notorious for taking forever to dry anything.

I thought that was condensing tumble dryers.

Don't think so by my experience.
Our are all condensing, and they don't seem slow to me.

Title: Re: Home energy saving tips /ideas...
Post by: Kim on 16 October, 2021, 07:12:03 pm
Condensing dryers are extremely slow when you are unaware how a condensing dryer works, didn't read the destructions, and leave the condensate tray to fill up to the point where the float switch cuts power to the elements.

(This is particularly annoying when none of this gets passed on to The Person With The Multimeter, who tips the lot all over their knees when attempting to find the fault.)
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 16 October, 2021, 07:29:09 pm
I'd never heard of the heat pump dryers until this thread. Every day's a school day.
The are notorious for taking forever to dry anything.

I thought that was condensing tumble dryers.
Heat pump dryers are a type of condensing dryers. The heat is pumped from the condenser to the heater. The air goes over the condenser where the moisture, unsurprisingly, consdenses. The air is then heated by the heater and goes into the drum where it heats the clothes and picks up water from them. Then it's back to the condenser. Getting the heat from the condensing of the water is the best source of heat to pump.

Heat pumps are a significant cost to build, and are why heat pump dryers are more expensive. Making them more powerful would add to the cost. Keeping the power down will probably make them more efficient, but will slow down the drying. On a vented dryer, a more powerful heater will be hardly any more cost than a less powerful one. Also, it may use less energy to dry the clothes faster, as less air will need to be blow through the dryer and heated if the process is takes longer.

Our dryer says it will take 3 hours when set to "cupboard dry" but will take much less if there isn't much in it. It's probably slower than our previous vented one. It really doesn't cause a problem for household use.

One other advantage of heat pump dryers is that they are far less likely to cause any fluff to burn. If fluff lands on an electric heater, that part of the heater will still generate the same amount of heat, so it will run hotter. On a heat pump dryer, the heat comes from the condensation of the refrigerant gas, so if one area of the heater is covered if fluff, there will just be less condensation of refrigerant in that area so less heat will be generated in that area and the temperature won't go up much.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 16 October, 2021, 07:46:15 pm
It's autumn, in Scotland
The towels had to go in the dryer because after 4 hours there was no hope they were going to be dried on the line. It was dark and calm.
Had I used the 1hr cycle given the running cost differential between the washer and the dryer and the whirly, 1hr washer + 4hrs whirly + 20m dryer < 4hrs washer + 3hrs dryer

I took my towel out of the washing machine and hung it up in the unheated bathroom (it get's most of it's warmth from the Kitchen, which has the radiator on low, and primarily gets heated by me making dinner). Do that at about 2200 when I hang the washing up. It's dry when I shower the next morning at about 9ish. The rest of the laundry gets hung on a rack that hangs over the front of my bedroom door. Again, hang stuff up about 2200ish, and it's dry by morning. In winter I sometimes put stuff on the radiator, usually things that are awkward, like my cycling gloves.

Humidity in my flat currently is 47.4%, and in the middle of winter with snow on the ground it gets to about 30%.

68% at 18.8c here according to the doohicky in the bathroom... hud on I'll move it somewhere dryer.
66% at 19.5c in the office room

Yes stuff could be hung up around the house, my one and only horse lives in the door corner of the living room in front of the radiator and is permanently covered in cycling kit.
That's the only room with space to set it up, partly due to a slightly duff layout of kitchen that sees the doors being french taking up most of the outer wall (that goes into the porch), in the middle with sink, washer and dishwasher on one side and large stove top plus oven on the other and larder and fridge on the hall side wall.  Someone has at some point in the past decided they didn't like a dining kitchen and made the kitchen spread round the walls, making a lot of useless space in the middle (similar has been done to the bathroom but it works well enough at the loss of office/2nd room space).

Heat Pump dryer is currently on in the porch, it's 10c in there with it running...

Title: Re: Home energy saving tips /ideas...
Post by: Lightning Phil on 16 October, 2021, 07:56:23 pm
If you have the space and want to dry clothes with more energy efficiency then get a dehumidifier.  About 4 times less electricity at a cost of taking 4 times as long as a dryer.
Title: Re: Home energy saving tips /ideas...
Post by: Basil on 16 October, 2021, 07:56:41 pm
Warm part of house is 17C in winter.  We always have the windows open in the bedroom unless rain or snow blowing in.  Don’t measure temp but prefer it cool with fresh air for sleeping.

Me too.  Has to be <-5° for me to consider trying to sleep in a airless room.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 16 October, 2021, 09:49:01 pm
I am trying to figure out the %rh in our new house. A few days ago all the meters were reading over 70%, and it hadn't been raining. Day before yesterday it pished with rain (to the extent the newly cleaned gutters were overwhelmed) in the late afternoon and this evening all the meters are reading about 56%. I'm still trying to work it all out.
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 16 October, 2021, 11:49:26 pm
I am trying to figure out the %rh in our new house. A few days ago all the meters were reading over 70%, and it hadn't been raining. Day before yesterday it pished with rain (to the extent the newly cleaned gutters were overwhelmed) in the late afternoon and this evening all the meters are reading about 56%. I'm still trying to work it all out.
Outside temperature often has more effect on the indoor humidity than outside humidity does.

If air is heated, its capacity to hold water vapour increases very fast. So when cold air from outside comes in and is heated, the absolute humidity doesn't change, but the relative humidity drops. If it's colder outside, 100% humidity air has to be heated more by the house so the relative humidity drops more from the 100% than if the air had been heated less.
Title: Re: Home energy saving tips /ideas...
Post by: fruitcake on 17 October, 2021, 10:16:12 am
Relative Humidity varies through the day. For instace, colder months in towns west of the pennines in the north of England, the evenings can be over 90% RH even though early afternoons can be just 60%. This means every air change has to be dehumidified, either through capturing the water vapour or raising the air tenperature. MetOffice site is a useful resource for forecasting Humidity - you need to press the button for 'full forecast'

Thursday's forcecast for Manchester is an example of daytime humidity in the 60s, night time almost 90.
https://www.metoffice.gov.uk/weather/forecast/gcw2hzs1u#?date=2021-10-17 (https://www.metoffice.gov.uk/weather/forecast/gcw2hzs1u#?date=2021-10-17)

In these conditions, it's important to seal up the house to stop all vents, but to use manual venting (e.g. opening a window) when conditions outside are favourable. Sealing up includes closing trickle vents on windows, closing open/close vents in walls, sealing off fireplaces, and having well fitting external doors and loft hatch. Then dehumidifiers can be effective.

Daily RH variations are less extreme in the south of England.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 17 October, 2021, 11:47:27 am
Not forecast to drop below 90% her until Wednesday lunch time when the sun comes back out for a few hours.
Drops to 60% then
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 17 October, 2021, 06:37:12 pm
I had cold feet for a good deal of last night. I shall keep socks on tonight.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 17 October, 2021, 06:46:43 pm
I am trying to figure out the %rh in our new house. A few days ago all the meters were reading over 70%, and it hadn't been raining. Day before yesterday it pished with rain (to the extent the newly cleaned gutters were overwhelmed) in the late afternoon and this evening all the meters are reading about 56%. I'm still trying to work it all out.

I would be bothered - if there's no obvious damp and you're not farming a herd of grand pianos or minding a friend's collection of renaissance artwork, it'll fluctuate anyway, the monitor on the machine in our kitchen spans from 30-60%.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 17 October, 2021, 06:49:52 pm
I had cold feet for a good deal of last night. I shall keep socks on tonight.

I have to sleep with socks on year round. Even in the height of summer.

J
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 17 October, 2021, 06:57:16 pm
Wearing socks today for the first time in about six months, because I was in the Big Room most of the day.
Title: Re: Home energy saving tips /ideas...
Post by: hubner on 30 October, 2021, 04:08:45 pm
I reckon the concept I'm going to call 'micro-heating' will catch on. This is a bit like the idea that you don't have to heat the entire house to be comfortable. Only, this is a step further. You don't have to heat the whole room to stay comfortable. Electric blankets are an example of micro-heating. As are heated car seats. There are companies which have designed living room chairs with heating elements.

I have an oil-filled radiator under my desk...
I'd say that's an implementation of micro-heating, because it places the heat where it's needed and the desktop here is a 'hood' to stop (some of) the heat escaping.

You can also warm the touch points. There are heated computer keyboards, and heated mice, for instance.

Heated gilets warm just the areas of the body that get cold first, i.e. kidneys and lower back. They're now available in designs that look like normal clothes, and they take USB power in (rather than the early ones which were designed specifically for builders and motorcyclists and required specialist batteries.)

I think we'll see more of this kind of stuff. Electric elements allow designs that isolate heat to an extent that's just not possible with coolant-filled radiators. And I hope we do see more innovation in this direction. A fringe benefit is that it's portable. You can set up office in places you couldn't otherwise.

OK, people are not going to change their lifestyles but the following makes interesting reading nevertheless:

Restoring the Old Way of Warming: Heating People, not Places
https://www.lowtechmagazine.com/2015/02/heating-people-not-spaces.html

Insulation: first the body, then the home
https://www.lowtechmagazine.com/2011/02/body-insulation-thermal-underwear.html

How to Keep Warm in a Cool House
https://www.lowtechmagazine.com/2015/03/local-heating.html

https://www.lowtechmagazine.com/2015/03/radiant-and-conductive-heating-systems.html
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 30 October, 2021, 04:52:24 pm
Insulation: first the body, then the home
https://www.lowtechmagazine.com/2011/02/body-insulation-thermal-underwear.html
Quote
Modern thermal underclothing offers the possibility to turn the thermostat much lower without sacrificing comfort or sex appeal.
Rule 34 applies, but do be careful when searching for "fleece porn".

Quote
Although room temperature is hardly ever mentioned as a factor in energy use, it is a decisive factor in the energy consumption of heating systems - just as the speed of an automobile is a decisive factor in the energy use of an engine.
Never mentioned? I'm sure I've seen publicity campaigns telling us to turn the thermostat down x degrees to save y amount of money/energy. But the magazine seems to be Usanian so maybe in that context it's right.

Quote
As far as I was able to find out, nobody has published a research report on the evolution of the average room temperature in winter throughout recent history. Today, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) recommends an indoor winter temperature between 21 and 23 degrees Celsius (70 to 73.5°F). A Dutch report (.pdf, in dutch) mentions a rise in average winter indoor temperature from 20° C in 1984 to 21° C in 1992. David MacKay mentions an average room temperature of 13° Celsius (55°F) in the UK in 1970.
Fragmentary data but perhaps broadly indicative.
Title: Re: Home energy saving tips /ideas...
Post by: hubner on 30 October, 2021, 05:21:05 pm
Quote
Low-tech Magazine is written by Kris De Decker (Barcelona, Spain).
Quote
Kris De Decker was born in Antwerp (Belgium) and lives in Barcelona (Spain)
Title: Re: Home energy saving tips /ideas...
Post by: fruitcake on 31 October, 2021, 09:36:03 am
Thanks Hubner. I had read the final article a few years ago and lost the link, so glad you posted it. It's very interesting to see the concept of micro-climates within a room.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 01 November, 2021, 12:39:49 am
Due to the cycling kit getting washed on Saturday (unusual timing of stuff allowed this) I have been able to put the towels on the horse next to the front room radiator.
Along with the cycling kit that turned out not to be dry after all...

So far it's still damp and tending slowly towards cardboard.
Timing imbalance also means it's only 2 bath towels that have been washed, and I own enough bath towels that I can continue this experiment for another 3 showers.

Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 01 November, 2021, 07:07:47 am
If you live in an older property which might be subject to cold spots and even possible dampness, get a decent dehumidifier.  Not only does it deal with the dampness, not only can you dry your laundry using one cheaper than a tumble dryer, but also because it reduces humidity so your conventional heating system will be marginally more effective warming drier air.

We are happy to wear extra clothing and run the heating for less time than most as well as keep the thermostat set lower.   

Also, why do so many people wear outer garments just the once or use a bath towel just the once before washing them?   Or am I just a dirty minger?
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 01 November, 2021, 07:12:52 am
Hmmm. I have just realised that I am being wasteful.

I need to change my baking schedule to ensure that it coincides with the cooking of other food using the oven.  This way I don't need to heat it from cold twice a day on baking day and, if I bake bread later in the day it will have a warming effect on the kitchen which in turn will keep the radiators off and save a bit more there.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 01 November, 2021, 08:26:18 am
I might have ranted once or twice about colleagues who complain about the office being cold - but wear a T shirt (or equivalent). Usually it is the men.
Women might, in general, get cold easier, but my observation is that most of my female colleagues will add some extra layers (then complain it is too cold).

Modern tumble driers are heat-reclaiming pumps. I'm really unconvinced that a dehumidifier, in a slightly draughty house, is going to be more efficient.

I think there are two key factors to saving energy at home;
Wear a sweater or thermals indoors
Always have the house a bit on the cool side. If you have hot rooms, or heat it up some of the time, then your body will never adapt.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 01 November, 2021, 08:37:38 am
Damp, condensation and mould would be one of the problems with heating the person not the building. Though they can't stop the rain or fix the roof.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 01 November, 2021, 09:11:52 pm
Quote
As far as I was able to find out, nobody has published a research report on the evolution of the average room temperature in winter throughout recent history. Today, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) recommends an indoor winter temperature between 21 and 23 degrees Celsius (70 to 73.5°F). A Dutch report (.pdf, in dutch) mentions a rise in average winter indoor temperature from 20° C in 1984 to 21° C in 1992. David MacKay mentions an average room temperature of 13° Celsius (55°F) in the UK in 1970.
Fragmentary data but perhaps broadly indicative.

tho I have no data to back this up. I would wager that while rooms are warmer now than they were 20/40/60 years ago. Heating them to that level uses less energy, and emits less. Due to efficiencies in sealing, insulation, building design, and heating technology.

J
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 01 November, 2021, 09:14:59 pm
Unfortunately those efficiencies don't really apply to the vast majority of British buildings. I think we might have discussed this already.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 01 November, 2021, 09:16:54 pm
The average British home must have got more efficient over the last few decades purely due to new homes being built to a more efficient standard dragging the average up.
A bit.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 01 November, 2021, 09:50:38 pm
Damp, condensation and mould would be one of the problems with heating the person not the building. Though they can't stop the rain or fix the roof.

Also, heating the person doesn't heat the air they're breathing.  You can't warm clothes your way out of temperature-induced asthma.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 01 November, 2021, 10:02:16 pm
If you live in an older property which might be subject to cold spots and even possible dampness, get a decent dehumidifier.  Not only does it deal with the dampness, not only can you dry your laundry using one cheaper than a tumble dryer, but also because it reduces humidity so your conventional heating system will be marginally more effective warming drier air.

We are happy to wear extra clothing and run the heating for less time than most as well as keep the thermostat set lower.   

Also, why do so many people wear outer garments just the once or use a bath towel just the once before washing them?   Or am I just a dirty minger?

I possess 4 bath towels.
A wool jumper will do a week.

The heating is barely on, the house sits at a nice comfortable 18C with only the occasional blast of the boiler.  This is actually a problem in the bathroom as the towel rail is next to never on so the towels on it don't quite dry out enough for day 2 and don't have the back up warmth to hide it.

My experience of dehumidifiers is in drying rooms at hostels and mountaineering huts, they create smelly sandpaper.

I have now been able to fold 2 sheets of bath towel sized sandpaper into a stack and dump it in the press with the boiler to do the last little bit of finishing off.

My woolie booly 2 socks are still drying...
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 02 November, 2021, 07:48:28 am
If you live in an older property which might be subject to cold spots and even possible dampness, get a decent dehumidifier.  Not only does it deal with the dampness, not only can you dry your laundry using one cheaper than a tumble dryer, but also because it reduces humidity so your conventional heating system will be marginally more effective warming drier air.

We are happy to wear extra clothing and run the heating for less time than most as well as keep the thermostat set lower.   

Also, why do so many people wear outer garments just the once or use a bath towel just the once before washing them?   Or am I just a dirty minger?

I possess 4 bath towels.
A wool jumper will do a week.

The heating is barely on, the house sits at a nice comfortable 18C with only the occasional blast of the boiler.  This is actually a problem in the bathroom as the towel rail is next to never on so the towels on it don't quite dry out enough for day 2 and don't have the back up warmth to hide it.

My experience of dehumidifiers is in drying rooms at hostels and mountaineering huts, they create smelly sandpaper.

I have now been able to fold 2 sheets of bath towel sized sandpaper into a stack and dump it in the press with the boiler to do the last little bit of finishing off.

My woolie booly 2 socks are still drying...

I'm in the process of remedying that issue by retro-fitting electric elements in the CH system towel rails - with the use of time clocks (or something like Hive) we can have the towel rails on independently of the CH - admittedly it's more for summer use when the CH is off rather than winter.   
Title: Re: Home energy saving tips /ideas...
Post by: neilrj on 02 November, 2021, 08:12:18 pm
If you live in an older property which might be subject to cold spots and even possible dampness, get a decent dehumidifier.  Not only does it deal with the dampness, not only can you dry your laundry using one cheaper than a tumble dryer, but also because it reduces humidity so your conventional heating system will be marginally more effective warming drier air.

We are happy to wear extra clothing and run the heating for less time than most as well as keep the thermostat set lower.   

Also, why do so many people wear outer garments just the once or use a bath towel just the once before washing them?   Or am I just a dirty minger?

I possess 4 bath towels.
A wool jumper will do a week.

The heating is barely on, the house sits at a nice comfortable 18C with only the occasional blast of the boiler.  This is actually a problem in the bathroom as the towel rail is next to never on so the towels on it don't quite dry out enough for day 2 and don't have the back up warmth to hide it.

My experience of dehumidifiers is in drying rooms at hostels and mountaineering huts, they create smelly sandpaper.

I have now been able to fold 2 sheets of bath towel sized sandpaper into a stack and dump it in the press with the boiler to do the last little bit of finishing off.

My woolie booly 2 socks are still drying...

I'm in the process of remedying that issue by retro-fitting electric elements in the CH system towel rails - with the use of time clocks (or something like Hive) we can have the towel rails on independently of the CH - admittedly it's more for summer use when the CH is off rather than winter.

Aren't bathroom rads on the hot water circuit any more?
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 02 November, 2021, 09:59:13 pm
Hot Water Circuit?

Combi-Boilers mean the hot water circuit triggers the heating of the water by flow detection (often set far too high... well mine is can be filling a 1l pan in 2seconds before its on), so the towel rad needs to be on the heating circuit.
But if you have a room thermostat controlling when it's on and off, you're only getting warm towels when your chosen room is cold.
Room temp sensing, Boiler controlling TRVs would help I suppose.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 02 November, 2021, 10:01:38 pm
Hot Water Circuit?

Combi-Boilers mean the hot water circuit triggers the heating of the water by flow detection (often set far too high... well mine is can be filling a 1l pan in 2seconds before its on), so the towel rad needs to be on the heating circuit.
But if you have a room thermostat controlling when it's on and off, you're only getting warm towels when your chosen room is cold.
Room temp sensing, Boiler controlling TRVs would help I suppose.

I thought if you had a thermostatic radiator valves, you had to have at least one radiator in the house without one, just in case the boiler is fired up, but the radiators are doing nothing. In the central heating systems I've setup we always did this with the bathroom radiator.

J
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 02 November, 2021, 11:12:41 pm
Hot Water Circuit?

Combi-Boilers mean the hot water circuit triggers the heating of the water by flow detection (often set far too high... well mine is can be filling a 1l pan in 2seconds before its on), so the towel rad needs to be on the heating circuit.
But if you have a room thermostat controlling when it's on and off, you're only getting warm towels when your chosen room is cold.
Room temp sensing, Boiler controlling TRVs would help I suppose.

I thought if you had a thermostatic radiator valves, you had to have at least one radiator in the house without one, just in case the boiler is fired up, but the radiators are doing nothing. In the central heating systems I've setup we always did this with the bathroom radiator.

J
Modern systems have a bypass valve that opens a bit to let some water through if all the radiators are shut off. https://www.bes.co.uk/heating-ventilation/central-heating/valves/bypass/ (https://www.bes.co.uk/heating-ventilation/central-heating/valves/bypass/)

As long as some water flows through the boiler, all of it will be at close to the same temperature and it will shut off when hot without damage. If no water flows, part of it can boil before the sensor notices that it's got too hot.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 03 November, 2021, 08:03:10 am
If you live in an older property which might be subject to cold spots and even possible dampness, get a decent dehumidifier.  Not only does it deal with the dampness, not only can you dry your laundry using one cheaper than a tumble dryer, but also because it reduces humidity so your conventional heating system will be marginally more effective warming drier air.

We are happy to wear extra clothing and run the heating for less time than most as well as keep the thermostat set lower.   

Also, why do so many people wear outer garments just the once or use a bath towel just the once before washing them?   Or am I just a dirty minger?

I possess 4 bath towels.
A wool jumper will do a week.

The heating is barely on, the house sits at a nice comfortable 18C with only the occasional blast of the boiler.  This is actually a problem in the bathroom as the towel rail is next to never on so the towels on it don't quite dry out enough for day 2 and don't have the back up warmth to hide it.

My experience of dehumidifiers is in drying rooms at hostels and mountaineering huts, they create smelly sandpaper.

I have now been able to fold 2 sheets of bath towel sized sandpaper into a stack and dump it in the press with the boiler to do the last little bit of finishing off.

My woolie booly 2 socks are still drying...

I'm in the process of remedying that issue by retro-fitting electric elements in the CH system towel rails - with the use of time clocks (or something like Hive) we can have the towel rails on independently of the CH - admittedly it's more for summer use when the CH is off rather than winter.

Aren't bathroom rads on the hot water circuit any more?

Not in this house they're not - nor in our previous house.   

The way the circuits run it was clearly installed by a lazy plumber - or poorly desgned.    We have 8 ground floor radiators that are fed from the circuit upstairs and have no means of draining other than manually the cracking the valve and using a bucket.

To be be more efficient a house should have (at least) 3 separately controlled circuits:  downstairs CH, upstairs CH (more than 1 if more storeys) and HW.    Installing pipework/controls to do that is pretty simple and shouldn't cost much more.

Title: Re: Home energy saving tips /ideas...
Post by: ian on 03 November, 2021, 09:27:10 am
Don't knock it, whoever did ours actually put some of the exposed heating pipework outside of the house (there's a mezzanine extension, so instead of tunnelling the pipes, they went straight out through the exterior wall, added a 90 bend, then and up the outside and into the extension).

The bathroom radiator works fine on the HW circuit though so we have toasty dry towels.
Title: Re: Home energy saving tips /ideas...
Post by: DuncanM on 03 November, 2021, 10:55:12 am
I've been doing loads of reading/youtubing about reducing energy use at home, but what I'd really like is someone with more knowledge than me to produce a report with itemized improvements and guestimate costs. Also who I could ask specific questions of (eg 3 floor house - ground floor always cold, top floor always too hot). How does one go about finding such a person (preferably one who isn't trying to sell stuff)?

We've kinda haphazardly ended up with solar PV and an EV, but still have a gas boiler (old school non-condenser type and no space for condenser pipework), and the house always seems to run humid, so there have to be a bunch of different technologies that we could use to be more efficient, save carbon/money and reduce the chances of damp.
Personally, I'd keep the house about 21 degrees given the choice, but my wife complains of cold when Tado says it's 23 degrees (she has an oil filled electric radiator in her office and so it's 26 degrees in there right now!!!), and my daughter would prefer it to be about 17 degrees.  ::-)
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 03 November, 2021, 01:52:16 pm
I've been doing loads of reading/youtubing about reducing energy use at home, but what I'd really like is someone with more knowledge than me to produce a report with itemized improvements and guestimate costs. Also who I could ask specific questions of (eg 3 floor house - ground floor always cold, top floor always too hot). How does one go about finding such a person (preferably one who isn't trying to sell stuff)?

https://www.gov.uk/buy-sell-your-home/energy-performance-certificates

Alternatively the Energy Saving Trust directs residents of England (?) here: https://www.simpleenergyadvice.org.uk/
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 03 November, 2021, 02:28:16 pm
What I do love is that they tell you that should should carry out improvements listed on your EPC in the order they are recommended. So for us that would be:
Room-in-roof insulation Cost £1,500 - £2,700 Typical saving/yr £251
Cavity wall insulation Cost £500 - £1500 Typical saving/yr £37
Floor insulation (suspended floor) £800-1200 Typical saving/yr £71
Low energy lighting for all fixed outlets £40 Typical saving/yr £52
Solar water heating £4-8k Typical saving/yr £31
Solar photovoltaic panels, 2.5 kWp £3500-5500 Typical saving/yr £310

Which to me should be done based on bang for buck and least disruption:
1. LED lighting
2. Cavity wall
Room in roof/flat roof makes sense but I'm not planning to get it done until the flat roof actually needs replacing (although I might change my mind once we've actually experienced a winter in this house)
Floor insulation - for the amount of upheaval that will generate you can get stuffed for the sake of £71/yr. Maybe if we ever get new carpets.
Solar water heating - the gas CH boiler was brand new in December so doesn't make sense to me to ditch that already, from an emissions caused by manufacturing POV.
Solar PV - yes it's expensive but it would make up for having a crappy electric hob and shower (despite having a combi boiler)
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 03 November, 2021, 02:31:31 pm
and the house always seems to run humid, so there have to be a bunch of different technologies that we could use to be more efficient, save carbon/money and reduce the chances of damp.
Personally, I'd keep the house about 21 degrees given the choice, but my wife complains of cold when Tado says it's 23 degrees (she has an oil filled electric radiator in her office and so it's 26 degrees in there right now!!!), and my daughter would prefer it to be about 17 degrees.  ::-)
If your house is humid your wife might feel warmer if it's less humid, so a dehumidifier may be a good thing there, made a massive difference to me.
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 03 November, 2021, 03:04:30 pm
We always think the house feels much colder on a wet day than a dry one, for a given temperature in the front room.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 03 November, 2021, 03:46:03 pm
What I do love is that they tell you that should should carry out improvements listed on your EPC in the order they are recommended. So for us that would be:
Room-in-roof insulation Cost £1,500 - £2,700 Typical saving/yr £251
Cavity wall insulation Cost £500 - £1500 Typical saving/yr £37
Floor insulation (suspended floor) £800-1200 Typical saving/yr £71
Low energy lighting for all fixed outlets £40 Typical saving/yr £52
Solar water heating £4-8k Typical saving/yr £31
Solar photovoltaic panels, 2.5 kWp £3500-5500 Typical saving/yr £310

Which to me should be done based on bang for buck and least disruption:
1. LED lighting
2. Cavity wall
Room in roof/flat roof makes sense but I'm not planning to get it done until the flat roof actually needs replacing (although I might change my mind once we've actually experienced a winter in this house)
Floor insulation - for the amount of upheaval that will generate you can get stuffed for the sake of £71/yr. Maybe if we ever get new carpets.
Solar water heating - the gas CH boiler was brand new in December so doesn't make sense to me to ditch that already, from an emissions caused by manufacturing POV.
Solar PV - yes it's expensive but it would make up for having a crappy electric hob and shower (despite having a combi boiler)

Swapping old style bulbs (filament and halogen) for all LED bulbs in the house wasn't much money* for us and shows a significant reduction in electricity consumption. The LED lights give off almost no heat, unlike the old halogens.

* Shop around as pricing for bulbs is a bit of a jungle . .  we had to replace 20 halogen ceiling lights that had transformers but the new units were only about £4.50 each ( ledbulbs.co.uk is pretty keen on price and service)     
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 03 November, 2021, 04:41:53 pm
Solar water heating - the gas CH boiler was brand new in December so doesn't make sense to me to ditch that already, from an emissions caused by manufacturing POV.

The usual BRITISH approach to solar water heating would be to pre-heat the water so the gas boiler has less work to do.  With combi boilers, this can be limited by the boiler's ability to modulate down.  The workaround for that is a thermostatic mixer valve diluting the solar heated water with cold before feeding it to the boiler.

Economically, it's marginal at best, unless you can side-step most of the installation costs by DIYing, or can use large quantities of lukewarm water (ie. a swimming pool).
Title: Re: Home energy saving tips /ideas...
Post by: Jurek on 03 November, 2021, 05:30:27 pm
I switched on the CH briefly, before leaving the house at 05:50 this morning.
Only I neglected to turn it off.
House was toasty when I returned about half an hour ago.

Contender for the 'I'm such a fecking div' thread. No?
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 03 November, 2021, 08:34:50 pm
Hot Water Circuit?

Combi-Boilers mean the hot water circuit triggers the heating of the water by flow detection (often set far too high... well mine is can be filling a 1l pan in 2seconds before its on), so the towel rad needs to be on the heating circuit.
But if you have a room thermostat controlling when it's on and off, you're only getting warm towels when your chosen room is cold.
Room temp sensing, Boiler controlling TRVs would help I suppose.

I thought if you had a thermostatic radiator valves, you had to have at least one radiator in the house without one, just in case the boiler is fired up, but the radiators are doing nothing. In the central heating systems I've setup we always did this with the bathroom radiator.

J

That is what I thought too... my one has a TRV, so far no boiler explosion... thankfully.
I've got that TRV cranked right up and the bathrooms lucky to get over 20c, not that I have any idea what max on the TRV equates to in reality.

I've currently got a multimeter, thermocouple, notepad and some dials attached to boiler pipes
Return was 5c below output, but the boiler does have a deliberately inefficient start up mode that gets the internal temperature up to 80


Modern systems have a bypass valve that opens a bit to let some water through if all the radiators are shut off. https://www.bes.co.uk/heating-ventilation/central-heating/valves/bypass/ (https://www.bes.co.uk/heating-ventilation/central-heating/valves/bypass/)

As long as some water flows through the boiler, all of it will be at close to the same temperature and it will shut off when hot without damage. If no water flows, part of it can boil before the sensor notices that it's got too hot.

That would explain it.

What I do love is that they tell you that should should carry out improvements listed on your EPC in the order they are recommended. So for us that would be:

Which to me should be done based on bang for buck and least disruption:
1. LED lighting
2. Cavity wall
Room in roof/flat roof makes sense but I'm not planning to get it done until the flat roof actually needs replacing (although I might change my mind once we've actually experienced a winter in this house)
Floor insulation - for the amount of upheaval that will generate you can get stuffed for the sake of £71/yr. Maybe if we ever get new carpets.
Solar water heating - the gas CH boiler was brand new in December so doesn't make sense to me to ditch that already, from an emissions caused by manufacturing POV.
Solar PV - yes it's expensive but it would make up for having a crappy electric hob and shower (despite having a combi boiler)

Yeah, I've had a nosey at the neighbours houses in the EPC database that are basically the same, interesting how different they all are.
Some have the obligatory "Wind Turbine" in the list, others don't despite being more efficient and clearly not included by the assessor

So with mine starting on 72/70 and a potential of 87/87
1) Floor insulation, 73/73 saves 45 quid a year
2) Draughtproofing, 74/74 saves 22 quid a year
3) Solar Water Heating, 76/76 - 28 quid
4) 2.5kWp Solar PV, 87/87 - 318 quid

Now... correct me if I'm being deluded here, but the 10 point increase from Solar PV and saving of £318 a year is by far the most obvious one to do first.
I mean if I start at 72/70 that's up to 82/80ish. I'd probably go for something a bit bigger with the aim of adding batteries when affordability is reached, after all half the year I cook when it's dark.

My assumption is due to the only draughts I can find being from the window vents that I did the draught proofing when I swapped the crap folding doors for a uPVC door between kitchen and sunporch.
Then again the sunporch is in the floor space and is unheated for now I'll take the hit of running a 1.5kw electric heater just before tea this winter and work out how to minimize loss from windows later, the wee brother just has to turn up with the stuff he's got sitting in his garage.

I need to lift a carpet to see if I can find a way of seeing under the floor too.


What's also interesting is there's no mention of low power lighting... the house was entirely lit with hallogen and CFLs for an EPC written September last year that's a bit shit so I guess the guides haven't been updated for the assessors to cover that.


The solar water interests me, the black painted garage door was too hot to touch before I shoved a layer of silver bubble wrap on the back, downside is the garage doesn't get so warm in winter, though it loses it anyway.  The front rooms are toasty on sunny days and balanced with the back rooms on the north on not so sunny days.

Seems to me the most appropriate approach would be to get PV in first with space left to get Solar Heating added later, that way I could use a tank and immersion heater and use that to heat the water during the day, downside being on days when the sun doesn't bother.

Attic space seems handy, and this house wasn't built with putting a room in the roof in mind. (Hall too narrow for stairs, space between roof trusses to wander around about 2 hall widths)

That or the upheaval of adapting the house such that an ASHP has a chance of doing its job



Oh I found this for TRVs
0 = Off
* = 7°C
1 = 10°C
2 = 15°C
3 = 20°C
4 = 25°C
5 = 30°C

that'll help me

although the rads are still toasty... this is going to be a late night
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 03 November, 2021, 09:14:20 pm
Ha our house is 58/52 currently
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 03 November, 2021, 09:26:22 pm
The solar water interests me, the black painted garage door was too hot to touch before I shoved a layer of silver bubble wrap on the back, downside is the garage doesn't get so warm in winter, though it loses it anyway.  The front rooms are toasty on sunny days and balanced with the back rooms on the north on not so sunny days.


I am genuinely surprised to see solar hot water on there. it's generally a lot easier these days to install an immersion heater in the water tank, and dump spare solar energy into that.

J
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 04 November, 2021, 01:00:03 am
I'm struggling to find out what's more efficient, a single pv panel running a 3kwh immersion heater or the similar sized heat collector and exchanger.

However It appears that a single solar heating panel should be enough for 2 peoples hot water demand and 1 PV panel won't power the immersion heater on its own.

Roof space efficiency come into play, I'd use it all given the chance... But I need to remember that currently I'm skint and it's 4 years till my mortgage is due to be rejigged... And I won't be getting anything close toy current rate by then (maybe should have gone 10yr...)

Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 04 November, 2021, 01:02:20 am
Oh and water tank? This place was built in the mid-90s, DHW from gas from day 1...
Tame plumber needed...

Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: iandusud on 04 November, 2021, 09:19:04 am
Going back to the original question is it being asked from a money saving point of view or from being a "responsible citizen in the face of the climate emergency" point of view?
From a money saving POV I think adding insulation gives the best return on investment. I've just added 170mm to the 100mm of insulation in our loft. The effect of this was immediately noticeable as witnessed at the meal table the following day when our daughter said "I was hot in bed last night" and my wife replies "so was I", and then the penny dropped and my wife said "could that be anything to do with the extra loft insulation"? (This was despite a drop in overnight temperature outside). Going up into the loft to do some finishing off the the temperature differential is noticeably bigger.
From a "responsible citizen in the face of the climate emergency" POV I think anything and everything individuals do is worthwhile, not only because they add up but also because the involve a change of mindset that challenges others.
My wife and I got rid of our car over a year ago, initially as an experiment to see how we would get on, and we've never looked back. We cycle almost everywhere or take the train for longer journeys. We are have an ASHP installed in the next few weeks to replace our old gas boiler. As it is our thermostat is set at 16C most of the time and turned up to 18C in the evenings. We don't need more. We don't heat our bedroom unless temperatures drop significantly outside.
I hear and understand and agree with the argument that it's the big polluters who need to change their behaviour if we are to see the sort of wholesale change that we need, but I also believe that we all have a personal responsibility to do the right thing, and if there is a big enough ground swell governments will capitulate - how do you think we ended up with Brexit?
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 04 November, 2021, 09:29:29 am
I wi be interested to hear how you get on with your ASHP.  Our boiler works fine for now and we only have the central heating on for 3 hours in the evening (not consecutive) but we'd like to ditch gas for heating if at all possible. 

I agree on insulation:  when I did the loft a few years back the effect was astounding but this was part of works to install DG, replace the roof, etc.  I have been doing internal wall insulation on our solid walls and, as we have cavities under our suspended wooden floors downstairs, insulating under floors one room at a time.  Each time we do a room the effect is obvious.

I have one downstairs room left to do but the pandemic and availability of sighted assistants as well as building supplies stopped that happening this year.  Roll on 2022...

We are also looking at a six panel pv array which is the best we can do on our ne/sw alighned victoriana mid-terrace.
Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 04 November, 2021, 10:04:48 am
Ha our house is 58/52 currently

My flat's 85/78 according to the home report we had done last month. We have single-glazed sash windows and no insulation, so I'm not really sure what they base it on. We seem to get lots of points for having TRVs and LED bulbs...???
Title: Re: Home energy saving tips /ideas...
Post by: aidan.f on 04 November, 2021, 10:05:15 am
I'm planning underfloor insulation as part of living room refurb. PB Any practical tips please?
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 04 November, 2021, 10:25:02 am
I'm planning underfloor insulation as part of living room refurb. PB Any practical tips please?

I just followed the insulation material company's instructions. Used sheep wool insulation (non-itchy, environmentally sound, but does smell of sheep) and membrane. Stapled membrane to beams, insulation above, taped all seams.

The room doesn't have any heating but isn't hugely cooler than the rest of the house. If we use it in winter we light the solid fuel stove in there.
Title: Re: Home energy saving tips /ideas...
Post by: iandusud on 04 November, 2021, 11:02:33 am
I wi be interested to hear how you get on with your ASHP.  Our boiler works fine for now and we only have the central heating on for 3 hours in the evening (not consecutive) but we'd like to ditch gas for heating if at all possible. 

I agree on insulation:  when I did the loft a few years back the effect was astounding but this was part of works to install DG, replace the roof, etc.  I have been doing internal wall insulation on our solid walls and, as we have cavities under our suspended wooden floors downstairs, insulating under floors one room at a time.  Each time we do a room the effect is obvious.

I have one downstairs room left to do but the pandemic and availability of sighted assistants as well as building supplies stopped that happening this year.  Roll on 2022...

We are also looking at a six panel pv array which is the best we can do on our ne/sw alighned victoriana mid-terrace.
I'll be happy to report back after this winter. Our decision to install ASHP is primarily in an effort to further reduce our carbon footprint. Having got rid of the car (which is generally the biggest element in a household CF) the next biggest emitter of CO2 was our gas CH, particularly as we have a very old gas boiler which must be very inefficient. Hopefully this means that we won't notice too much of an increase in our energy bills. We are also taking advantage of the Renewable Heating Incentive to subsidise the cost before it is replaced with the grant being introduced next year, which is less interesting financially despite the big song and dance the chancellor made about it!
Our next step will almost certainly be solar panels but we'll have to wait on that one for now (we fitted them to our last house and were very happy with them, even if they cost a lot more in those days). Hopefully the government will do something to incentivise SPs soon, as opposed to the retrograde steps they have taken on this front. Solar energy is plentiful and free. I constantly hear the argument that they only produce electricity during the day, which is valid, but it would be easy to have a cheaper daytime tariff for electricity if there is a surplus, getting people to charge their cars on cheap rate for example as well as the benefit to businesses that run 9-5 etc. I can see no reason why all new builds should not have to have SPs fitted as standard. The extra cost on the price of a new build would be peanuts. Sorry for the rant.  :)
Title: Re: Home energy saving tips /ideas...
Post by: MikeFromLFE on 04 November, 2021, 11:18:22 am
Because we were contacted by our local council, due to Mrs M receiving a 'qualifying benefit', it seems we are eligible for the latest iteration of the Green Homes Grant.
Leicestershire County Council have subcontracted this to Eon.
Eon sent one of their subcontracted assessors to do the requisite Home Energy Survey so we'd get an EPC (It seems we are D).
Eon subcontract the works to their subcontractors (who presumably have subcontractors) ::-)

The assessor confessed to being a dissatisfied energy salesman who'd retrained online during the lockdown to be an energy assessor, Eon being the second company he'd worked with so far.  :facepalm:

On the plus side - he did finally settle my very longstanding question about the walls on the main part of our house as being solid brick (they look as though they ought to be cavity, but are too old to be).

However, he couldn't assess out loft insulation as it was partly boarded "can't see it - can't assess it" (I think it's 'pretty good' but he's supposed to be the expert).
There's no insulation in the ceiling of our extension - I think this is a major issue, but he couldn't assess it because he couldn't get to see what's there (it's a tiny hatch - yes you could get through it, but it ain't easy).
He dismissed 'Smart Heating Controls' on his experience with Hive which he admitted he didn't really understand. He didn't even consider the cavity wall of the extension.
He waxed lyrical about PV Solar panels (based on the fact he'd sold them when they first came out) but then let out that it only Thermal Solar available on the scheme.
So - not impressed.

I'm waiting for the report, which based on what he was saying will suggest:
1) Underfloor insulation (we have suspended wooden floors)  - I'm not taking up vast areas of expensive, expensively laid, laminate flooring unless they reinstate it (which they won't)
2) External Wall Insulation - which I'm tempted to go for if it's offered
3) Solar Thermal Panels - which I'd consider IF they offer a system which will work with my 3 year old combi-boiler AND they'll put the tank in the loft.
4) I'm hoping that the Smart Heating Controls make an appearance because the electronic radiator valves are starting to show their age and I'd rather Boris pays for a Tada system than me (I live in hope).
5) I'm hopeful that the cavity wall on the extension does get included because I'm pretty sure it's not insulated - it's a small area, but if they won't consider the ceiling, the walls will be worth doing.

I await the report and a visit from a 'Technical Surveyor'
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 04 November, 2021, 11:35:34 am
We have a hive system.
Main benefits; I can see the current temperature. We have turned down the heat settings (mornings and evenings) considerably, on finding that we were 'comfortable' when the hallway was at 17. So the evening and morning CH boost is now at 17 - if we want it warmer, we turn it up for an hour or two.

It is very easy to control the CH by turning up the temperature.

This can be done from phone app or from the sensor device. The sensor is battery powered and small, so it is easy to move into another room if we want the temp in that room to drive the heating.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 04 November, 2021, 12:38:43 pm
We have a hive system.
Main benefits; I can see the current temperature. We have turned down the heat settings (mornings and evenings) considerably, on finding that we were 'comfortable' when the hallway was at 17. So the evening and morning CH boost is now at 17 - if we want it warmer, we turn it up for an hour or two.

It is very easy to control the CH by turning up the temperature.

This can be done from phone app or from the sensor device. The sensor is battery powered and small, so it is easy to move into another room if we want the temp in that room to drive the heating.

Another vote for Hive - we've had it for about 5 years (3.5 with a Combi boiler and 1.5 with a pressurised boiler + tank system) - excellent controls and boost option etc . . .  and we've added light bulbs and plug/sockets for timing various things.   Being able to switch stuff on/off from anywhere in the world using the phone is pretty useful - e.g. turning on heating when we're on the way home (ditto the coffee machine  :thumbsup:,  as I've mentioned before) 
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 04 November, 2021, 01:44:28 pm
We have a hive system.
Main benefits; I can see the current temperature. We have turned down the heat settings (mornings and evenings) considerably, on finding that we were 'comfortable' when the hallway was at 17. So the evening and morning CH boost is now at 17 - if we want it warmer, we turn it up for an hour or two.

It is very easy to control the CH by turning up the temperature.

This can be done from phone app or from the sensor device. The sensor is battery powered and small, so it is easy to move into another room if we want the temp in that room to drive the heating.

Another vote for Hive - we've had it for about 5 years (3.5 with a Combi boiler and 1.5 with a pressurised boiler + tank system) - excellent controls and boost option etc . . .  and we've added light bulbs and plug/sockets for timing various things.   Being able to switch stuff on/off from anywhere in the world using the phone is pretty useful - e.g. turning on heating when we're on the way home (ditto the coffee machine  :thumbsup:,  as I've mentioned before)

Yeah, I forgot that one.
I think that we save considerable diesel through being able to turn up the heating when we need it, instead of heating an empty house. Even the "brr, it is cold this morning, turn the heating on early" option from bed.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 04 November, 2021, 02:39:29 pm
I see that robots for applying expanding foam under your floorboards are now a thing. Can't see how that is good from a rot perspective though ..
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 04 November, 2021, 03:53:13 pm
I see that robots for applying expanding foam under your floorboards are now a thing. Can't see how that is good from a rot perspective though ..

That is bonkers.

Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 04 November, 2021, 04:33:30 pm
I see that robots for applying expanding foam under your floorboards are now a thing. Can't see how that is good from a rot perspective though ..

I suppose the devil is in the detail.  Surely there is some form of moisture management within the chemical cocktail?
Title: Re: Home energy saving tips /ideas...
Post by: aidan.f on 04 November, 2021, 05:34:15 pm
From wot I have read a vapour barrier is used on the warm side under the floor covering. Wool is recommended for older structures.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 05 November, 2021, 07:57:52 am
Hot Water Circuit?

Combi-Boilers mean the hot water circuit triggers the heating of the water by flow detection (often set far too high... well mine is can be filling a 1l pan in 2seconds before its on), so the towel rad needs to be on the heating circuit.
But if you have a room thermostat controlling when it's on and off, you're only getting warm towels when your chosen room is cold.
Room temp sensing, Boiler controlling TRVs would help I suppose.

I thought if you had a thermostatic radiator valves, you had to have at least one radiator in the house without one, just in case the boiler is fired up, but the radiators are doing nothing. In the central heating systems I've setup we always did this with the bathroom radiator.

J

That is what I thought too... my one has a TRV, so far no boiler explosion... thankfully.
I've got that TRV cranked right up and the bathrooms lucky to get over 20c, not that I have any idea what max on the TRV equates to in reality.

I've currently got a multimeter, thermocouple, notepad and some dials attached to boiler pipes
Return was 5c below output, but the boiler does have a deliberately inefficient start up mode that gets the internal temperature up to 80


Modern systems have a bypass valve that opens a bit to let some water through if all the radiators are shut off. https://www.bes.co.uk/heating-ventilation/central-heating/valves/bypass/ (https://www.bes.co.uk/heating-ventilation/central-heating/valves/bypass/)

As long as some water flows through the boiler, all of it will be at close to the same temperature and it will shut off when hot without damage. If no water flows, part of it can boil before the sensor notices that it's got too hot.

That would explain it.

What I do love is that they tell you that should should carry out improvements listed on your EPC in the order they are recommended. So for us that would be:

Which to me should be done based on bang for buck and least disruption:
1. LED lighting
2. Cavity wall
Room in roof/flat roof makes sense but I'm not planning to get it done until the flat roof actually needs replacing (although I might change my mind once we've actually experienced a winter in this house)
Floor insulation - for the amount of upheaval that will generate you can get stuffed for the sake of £71/yr. Maybe if we ever get new carpets.
Solar water heating - the gas CH boiler was brand new in December so doesn't make sense to me to ditch that already, from an emissions caused by manufacturing POV.
Solar PV - yes it's expensive but it would make up for having a crappy electric hob and shower (despite having a combi boiler)

Yeah, I've had a nosey at the neighbours houses in the EPC database that are basically the same, interesting how different they all are.
Some have the obligatory "Wind Turbine" in the list, others don't despite being more efficient and clearly not included by the assessor

So with mine starting on 72/70 and a potential of 87/87
1) Floor insulation, 73/73 saves 45 quid a year
2) Draughtproofing, 74/74 saves 22 quid a year
3) Solar Water Heating, 76/76 - 28 quid
4) 2.5kWp Solar PV, 87/87 - 318 quid

Now... correct me if I'm being deluded here, but the 10 point increase from Solar PV and saving of £318 a year is by far the most obvious one to do first.
I mean if I start at 72/70 that's up to 82/80ish. I'd probably go for something a bit bigger with the aim of adding batteries when affordability is reached, after all half the year I cook when it's dark.

My assumption is due to the only draughts I can find being from the window vents that I did the draught proofing when I swapped the crap folding doors for a uPVC door between kitchen and sunporch.
Then again the sunporch is in the floor space and is unheated for now I'll take the hit of running a 1.5kw electric heater just before tea this winter and work out how to minimize loss from windows later, the wee brother just has to turn up with the stuff he's got sitting in his garage.

I need to lift a carpet to see if I can find a way of seeing under the floor too.


What's also interesting is there's no mention of low power lighting... the house was entirely lit with hallogen and CFLs for an EPC written September last year that's a bit shit so I guess the guides haven't been updated for the assessors to cover that.


The solar water interests me, the black painted garage door was too hot to touch before I shoved a layer of silver bubble wrap on the back, downside is the garage doesn't get so warm in winter, though it loses it anyway.  The front rooms are toasty on sunny days and balanced with the back rooms on the north on not so sunny days.

Seems to me the most appropriate approach would be to get PV in first with space left to get Solar Heating added later, that way I could use a tank and immersion heater and use that to heat the water during the day, downside being on days when the sun doesn't bother.

Attic space seems handy, and this house wasn't built with putting a room in the roof in mind. (Hall too narrow for stairs, space between roof trusses to wander around about 2 hall widths)

That or the upheaval of adapting the house such that an ASHP has a chance of doing its job



Oh I found this for TRVs
0 = Off
* = 7°C
1 = 10°C
2 = 15°C
3 = 20°C
4 = 25°C
5 = 30°C

that'll help me

although the rads are still toasty... this is going to be a late night

Something that my brain can't quite comprehend is how TRVs which are (obviously) next to the heated radiator can decide/understand how warm the room is - with the notional numbered settings - the heat from the nearby radiator must affect the sensor?   (Physics wasn't my strong suit at school!)

I've been fiddling with trying to balance our radiators for a couple of days and it does seem to be an inexact science - with probably a bit of guesswork and luck thrown in.  I'm using a multimeter with a temperture probe and adjusting lockshield valves.
Title: Re: Home energy saving tips /ideas...
Post by: Frank9755 on 05 November, 2021, 01:29:39 pm

Something that my brain can't quite comprehend is how TRVs which are (obviously) next to the heated radiator can decide/understand how warm the room is - with the notional numbered settings - the heat from the nearby radiator must affect the sensor?   (Physics wasn't my strong suit at school!)

I've been fiddling with trying to balance our radiators for a couple of days and it does seem to be an inexact science - with probably a bit of guesswork and luck thrown in.  I'm using a multimeter with a temperture probe and adjusting lockshield valves.

I was thinking about this yesterday and decided that they can only give relative rather than absolute adjustments.  So they can make a room warmer relative to other rooms, by opening the valve a bit more, or cooler. 

What they can't do - which is what I was wanting to think they could - is keep the room I am working in at XX degrees regardless of the rest of the house.

As I see it, they are not thermostats.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 05 November, 2021, 02:14:08 pm

Something that my brain can't quite comprehend is how TRVs which are (obviously) next to the heated radiator can decide/understand how warm the room is - with the notional numbered settings - the heat from the nearby radiator must affect the sensor?   (Physics wasn't my strong suit at school!)

I've been fiddling with trying to balance our radiators for a couple of days and it does seem to be an inexact science - with probably a bit of guesswork and luck thrown in.  I'm using a multimeter with a temperture probe and adjusting lockshield valves.

I was thinking about this yesterday and decided that they can only give relative rather than absolute adjustments.  So they can make a room warmer relative to other rooms, by opening the valve a bit more, or cooler. 

What they can't do - which is what I was wanting to think they could - is keep the room I am working in at XX degrees regardless of the rest of the house.

As I see it, they are not thermostats.

All they can do it respond to the temperature of the air near your Rad. There is no intelligence in the TRV.

Assuming your boiler/heat source has the power to bring all rads up to the max water temperature (usually below 65C), then a TRV fully open will permit the water the keep flowing. Any TRV setting below that just starts restricting the water flow when the room is cold. They are affected by the temperature of the water; if the rads are undersized for the room, the TRV will just stay open until the room heats up.

Once a rad is at the same temperature as the boiler water, you may as well shut down the water flow through the rad anyway.
Title: Re: Home energy saving tips /ideas...
Post by: grams on 05 November, 2021, 02:57:07 pm
The cooler the air in a room is, the longer it will take for the TRV to heat up enough to switch off, and it will cool down quicker and switch back on sooner. So the radiator output will be a function of room temperature, and it should reach a stable state where room temperature stays in a certain band.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 05 November, 2021, 03:00:53 pm
With the size of rads fitted by most builders, you need a circulating temp of > 80 deg C (which makes a condensing boiler only partially condensing).  Also, the 63 deg C circulating temp used to measure boiler efficiency is totally useless for heating a hot water cylinder to 60 deg C.  It's a bit of a con.
Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 05 November, 2021, 06:55:46 pm
Has anyone used the Hive TRVs? We have a Hive thermostat, but I'm curious to see whether the TRVs would make a difference.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 05 November, 2021, 07:19:21 pm
Has anyone used the Hive TRVs? We have a Hive thermostat, but I'm curious to see whether the TRVs would make a difference.

Yes - and no - I bought one to see whether the combination of being able to time and control temperature in rooms not used much would work.  Complete rubbish - they simply do not work - if you look at the Hive Forum there are endless posts about the software not being for purpose.  The other "undocumented feature" is that they can only be set/scheduled etc from the Hive app and not for the Hive PC access (that being my preferred option - about 3 hours of trying to get the PC to recognise the valves . . .  and then the so-called helpdesk told me that it was app only)

The valve went back for a refund - shame as if it had worked I'd have bought 2 or 3 more to use with rooms that have timed or infrequent use.

What I did get instead was a Eqiva Model N valve that is programmable for time - that works in the room that's used for about an hour a day (my wife, so I'm told? - does yoga in there each afternoon) - the idea is that the valve opens the rad about 30 minutes ahead of time and if the remainder of the house is calling for heat then that room gets some heat - and it then closes the rad about 10 minutes before the room becomes unused again.   The valve is about £20 or a bit more from Amazon (I bought mine from Sotel in Germany, 3 or 4 days delivery with no problems)
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 05 November, 2021, 07:28:09 pm
Something that my brain can't quite comprehend is how TRVs which are (obviously) next to the heated radiator can decide/understand how warm the room is - with the notional numbered settings - the heat from the nearby radiator must affect the sensor?   (Physics wasn't my strong suit at school!)
There will be a big effect from the radiator. The TRVs are normally low down, so the hot air rising from the radiator* will mean that the bottom of the radiator and the TRV will be generally in room air, which will reduce the effect somewhat. The physical construction of the TRV will be such the sensitivity to air temperature will be as much as possible, and radiation from the radiator and conduction from the pipe will be minimised.

The heat from the radiator will tend to mean that the TRV will need several degrees of room temperature change to go from fully on to fully off, so that will reduce their effectiveness a bit. Perhaps a valve will be fully on with the room at 15 °C and the radiator fully hot, and will be fully off with the room at 25 °C and the radiator cold. The gap between those numbers is a guess, and TRVs may be better than that. For a standard TRV, where will have to be a few degrees difference to go from open to cold, even ignoring the heating from the radiator.

That doesn't mean that TRVs are useless, as they will reduce the heating in hotter rooms quite effectively, just not perfectly.

Without TRVs, and with a typical water temperature of 60 °C, a radiator in a room at 25 °C will put out 80% as much heat as it would into a room at 15 °C, so the TRV is reducing the heat around 5 times as fast.

Electronic TRVs probably compensate for the heating from the radiator. I don't know for sure, but I have been very impressed with the Honeywell Evohome system, and it seems to control very well. The system obviously knows if the radiator is on or not, so it can measure the fairly fast temperature rise that the TRV will see when the radiator turns on, and compensate for that rise. It only needs software. The mechanical separation between the temperature sensor and the valve is larger in an electronic TRV than in a conventional one. Also the valve can be driven fully open to fully closed when the computer says so, without needed to heat from the room to melt the wax in the operating element, so it can be a more precise control.

* House radiators don't radiate much. If they did, they would be black to improve radiation. House radiators put heat into the room by conduction / convection.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 06 November, 2021, 04:28:19 pm
Well, I just stuck my head down through the hatch under the front door. That was interesting. Plenty crawl space so potentially the ability to insulate the floor from below. And install cat5 cable if needed.
The photo below is of the wall directly under the front door, it's north facing. It appears to be wearing a fur coat of efflorescence. It doesn't exactly make me feel that getting cavity wall insulation would be a good idea, although that's just what I can see from the hatch, I didn't go having a crawl about. Also, IANA cavity wall insulation surveyor.
(https://live.staticflickr.com/65535/51659016241_30f9dc4ced.jpg) (https://flic.kr/p/2mGVXKP)IMG_20211106_155422 (https://flic.kr/p/2mGVXKP) by The Pingus (https://www.flickr.com/photos/the_pingus/), on Flickr

This photo shows what I assume is a clay demijohn and then on closer inspection it looks like someone's put a bagged up floor cleaning device or something under there.  ???
(https://live.staticflickr.com/65535/51659016236_f437e8ef7b.jpg) (https://flic.kr/p/2mGVXKJ)IMG_20211106_155031 (https://flic.kr/p/2mGVXKJ) by The Pingus (https://www.flickr.com/photos/the_pingus/), on Flickr

Further inspection some time...
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 06 November, 2021, 04:32:57 pm
Hypocaust ftw
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 06 November, 2021, 04:48:48 pm
wow that is serious efflorescence.

Do you have air vents into the under floor space?
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 06 November, 2021, 05:11:36 pm
There are air bricks, I assume they're under the floor...
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 06 November, 2021, 05:19:35 pm
The air bricks should vent into the cavity space, i.e. below the floorboards but above the soil.  Ours are situated at joist level.

I insulated part of our underfloor from below.  It was a dirty and difficult job even with 9 courses of brickwork space to work in.  Yours looks a bit more cramped..  I have done / am doing the rest from above.
Title: Re: Home energy saving tips /ideas...
Post by: Snakehips on 06 November, 2021, 07:19:16 pm
Well, I just stuck my head down through the hatch under the front door. That was interesting. Plenty crawl space so potentially the ability to insulate the floor from below. And install cat5 cable if needed.
The photo below is of the wall directly under the front door, it's north facing. It appears to be wearing a fur coat of efflorescence. It doesn't exactly make me feel that getting cavity wall insulation would be a good idea, although that's just what I can see from the hatch, I didn't go having a crawl about. Also, IANA cavity wall insulation surveyor.
(https://live.staticflickr.com/65535/51659016241_30f9dc4ced.jpg) (https://flic.kr/p/2mGVXKP)IMG_20211106_155422 (https://flic.kr/p/2mGVXKP) by The Pingus (https://www.flickr.com/photos/the_pingus/), on Flickr

This photo shows what I assume is a clay demijohn and then on closer inspection it looks like someone's put a bagged up floor cleaning device or something under there.  ???
(https://live.staticflickr.com/65535/51659016236_f437e8ef7b.jpg) (https://flic.kr/p/2mGVXKJ)IMG_20211106_155031 (https://flic.kr/p/2mGVXKJ) by The Pingus (https://www.flickr.com/photos/the_pingus/), on Flickr

Further inspection some time...

This deserves a thread all its own, The View Under My Floorboards or something similar, or has there already been one? I have a similar space under mine and I'm contemplating a visit in the near future. Might take a camera next time.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 06 November, 2021, 08:12:51 pm
This deserves a thread all its own, The View Under My Floorboards or something similar, or has there already been one? I have a similar space under mine and I'm contemplating a visit in the near future. Might take a camera next time.

Oh, we should have a photo of the stack of bricks and random debris that supports our landlord-quality floor.
Title: Re: Home energy saving tips /ideas...
Post by: Pingu on 06 November, 2021, 11:57:44 pm
This deserves a thread all its own, The View Under My Floorboards or something similar, or has there already been one? I have a similar space under mine and I'm contemplating a visit in the near future. Might take a camera next time.

https://yacf.co.uk/forum/index.php?topic=121458  ;)
Title: Re: Home energy saving tips /ideas...
Post by: DuncanM on 08 November, 2021, 01:51:26 pm
The EPC for our house was done in 2012 (67 D) - since then we've installed low energy lights, Tado (including the remote TRVs), just under 4kW of solar PV including an iBoost to heat the hot water, and some improved windows. Looking at it, the top 2 recommendations are cavity wall insulation and a new jacket for the hot water tank, at lots of money and almost nothing, so I don't know why we didn't do the latter - will get on that one.

The smart meter that was installed only works as a dumb meter - the installer said they would need to come back to do something else to it but they never did, and it's inaccessible because there's a (broken) car in the garage now. Ultimately, I'd like a battery and a heat pump system - then we could get entirely off gas, and use a lot of the solar we generate during the warmer months, including to power the EV.  That would seem both financially prudent and carbon saving. However, I'd also like to make the house more pleasant to live in, and that's why I'd like to talk to an expert. The EPC people don't really seem all that knowledgeable about what is actually possible and what is beneficial (eg maybe an air-air heat pump downstairs would mean we don't need much heating for a huge amount of the year and would allow my wife to keep her office toasty, but they don't qualify for any sort of grant (because they can be run in reverse for aircon) so don't appear in any guidance I can find). Also, if humidity needs to be brought down, then there has to be a way to recover the heat while dumping the moisture outside (rather than just opening windows), but that sort of thing doesn't appear anywhere on any list.
Title: Re: Home energy saving tips /ideas...
Post by: fruitcake on 08 November, 2021, 02:08:31 pm
If a house has a South facing rear wall and sufficient land (i.e. a garden), and the owner has the funds, a substantial amount of heat can be gained directly through a conservatory, if that conservatory is designed wiith solar gain in mind. That means having a way of stopping the place overheating during summer. 

IIRC therewas a house in Nottinghamshire that was built to passivhaus standard with a two-storey conservatory as the main heat source. It had a concrete floor as heat storage. The conservatory was vented to allow the owners to reduce solar gain in the warm season. The owners were an Australian couple who designed and built the house and documented it in a book (which is how I know about it), but alas I don't remember the title or authors. Others here may know of it. It was built to test what was possible in the UK, and, for me, it demonstrated the potential efficacy of solar gain through a conservatory.
Title: Re: Home energy saving tips /ideas...
Post by: DuncanM on 08 November, 2021, 02:20:52 pm
It would be interesting to see a comparison between solar PV and heat pump vs solar gain from a conservatory. My guess is the former would be more efficient and easier to modulate heat (but much less nice to sit in! :) )
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 08 November, 2021, 02:22:14 pm
If a house has a South facing rear wall and sufficient land (i.e. a garden), and the owner has the funds, a substantial amount of heat can be gained directly through a conservatory, if that conservatory is designed wiith solar gain in mind. That means having a way of stopping the place overheating  during summer. 

IIRC there's a house Nottinghamshire that was built to passivhaus standard with a two-storey conservatory was the main heat source. It had a concrete floor as heat storage. The conservatory was vented to allow the owners to reduce solar gain in the warm season. The owners were an Australian couple who designed and built the house and documented it in a book (which is how I know about it), but alas I don't remember the title or authors. Others here may know of it. It was built to test what was possible in the UK, and, for me, it demonstrated the potential efficacy of solar gain through a conservatory.

There are a bunch of them in York.

The architect told the owners (it was an owner builder scheme) that they wouldn't need central heating. Several didn't believe him. Last I heard they regretted spending the money because they never need heating.
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 08 November, 2021, 02:58:26 pm
If a house has a South facing rear wall and sufficient land (i.e. a garden), and the owner has the funds, a substantial amount of heat can be gained directly through a conservatory, if that conservatory is designed wiith solar gain in mind. That means having a way of stopping the place overheating  during summer. 

IIRC there's a house Nottinghamshire that was built to passivhaus standard with a two-storey conservatory was the main heat source. It had a concrete floor as heat storage. The conservatory was vented to allow the owners to reduce solar gain in the warm season. The owners were an Australian couple who designed and built the house and documented it in a book (which is how I know about it), but alas I don't remember the title or authors. Others here may know of it. It was built to test what was possible in the UK, and, for me, it demonstrated the potential efficacy of solar gain through a conservatory.

Are you thinking of Hockerton?  A superb project.  I visited years ago and still harbour dreams of a Hockerton Hobbit House.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 08 November, 2021, 04:43:58 pm
This sounds like something I used to try while home alone during SCE study leave, shut south facing porch windaes and doors and see how hot I could get it.

Record was 40 odd.
It never gets all that warm in winter, like bringing clothes horse into house instantly not warm but that house is sheltered by trees from the south.

My place has the porch on the north, warm in summer... Run heater to get heat pump dryer up to operating temperature range erm now...

Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: fruitcake on 08 November, 2021, 06:59:35 pm
What I remember about the house is that it looked conventional for its locale; they didn't want it to look like an eco-house. That meant choosing the local brick for the exterior, and other conventional materials. Their choice of a 1m thick concrete floor as the heat store may not be considered sustainable nowadays, but maybe the massive carbon footprint of concrete wasn't as widely recognised when this project was built (which was the 1990s IIRC). Amusingly the house was too cold for the first twelve months because it took that long for the 1m concrete slab to fully dry. After that it sat above 15C all year round with no fuel inputs. The other interesting thing was that the house was designed to be off-grid for all services including water. That meant rainwater filtration and storage in the basement and pumps to raise that water to the bathroom and kitchen.

I've since seen houses designed for solar gain using the same physical principle (large windows and a huge thermal mass) with 50cm thick stone internal walls as the heat store.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 08 November, 2021, 07:09:06 pm
DuncanM I was reading about the gadgets on this page last night.
https://www.heritage-house.org/damp-and-condensation/solving-damp-problems-in-your-home/controlling-humidity.html
Which made me think of the things I posted about a couple of months back, single room MVHR, like this sort of thing. They sound like a good idea but no idea if they are any good or not...https://www.fastlec.co.uk/blauberg-heat-recovery
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 08 November, 2021, 08:54:38 pm
Meanwhile I am waiting for a local company to come & drill GBFO holes in the walls and install a bathroom fan and cooker hood so we can stop showering and cooking with the windows open. Not coming til the 30th Nov though.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 09 November, 2021, 07:50:43 am
I still think that the biggest problem we face in the UK is the expectation that, when it is 0C outside, every room in our house will be over 21C.
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 09 November, 2021, 08:59:39 am
It's because folk want to wear their flouncy fashions and not even give a first thought to the consequences of burning gas 18 hours a day let alone a second thought.  It never ceases to amaze me how people flit between overly warm houses and overly warm cars even in the depths of winter.

There will be a reckoning for many, poor and not so poor with the costs of gas and electricity this winter. 

We run our CH for three hours a day in the evening and not continuously.  It seems more than enough to be honest save for those exceptions when the temperature stays stubbornly below zero for an extended period.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 09 November, 2021, 12:28:10 pm
My graph informs me that our heating has run for over 3 hours on two days this month, with an average of 95min/day, to maintain an indoor average temperature around 20C.  That's higher than usual for the outdoor temperature because barakta is currently living in the (relatively cold) dining room, and we're pissing all the heat out of the downstairs a few times a week by doing the wheelchair ramp dance.

If it were properly cold, it would be a lot higher.  But as rental scum we can't insulate anything, and have to make do with intelligent use of heating.

(https://www.ductilebiscuit.net/gallery_albums/random/Screenshot_at_2021_11_09_12_29_20.png)
Title: Re: Home energy saving tips /ideas...
Post by: ian on 09 November, 2021, 12:40:39 pm
I confess I like to be warm (our heating is set to 20.5 degrees in the evening, but that's the hallway and makes the rest of the house around 20 degrees (it gets warmer upstairs). I will wear a jumper and trousers, but I draw the line at getting dressed up as a polar bear for purposes other than scaring everyone's favourite global maple-shagging scaredy beavers, the Canadians.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 09 November, 2021, 02:20:59 pm
My heating app has started telling me runtimes.
27hrs 20mins ish last week, Sunday despite being mild was worst at nearly 5h

That for 18 degrees during the day and 14 overnight (I can't sleep if there's constant noise so I want the boiler off)

Tuesday was the day I attempted to balance the radiators so had it going full welly for a bit. (https://uploads.tapatalk-cdn.com/20211109/208f3f828fc8f99daf2e25bfa12a2677.jpg)

Sent from my BKL-L09 using Tapatalk
Title: Re: Home energy saving tips /ideas...
Post by: salar55 on 09 November, 2021, 02:32:20 pm
My heating app has started telling me runtimes.
27hrs 20mins ish last week, Sunday despite being mild was worst at nearly 5h

That for 18 degrees during the day and 14 overnight (I can't sleep if there's constant noise so I want the boiler off)

Tuesday was the day I attempted to balance the radiators so had it going full welly for a bit. (https://uploads.tapatalk-cdn.com/20211109/208f3f828fc8f99daf2e25bfa12a2677.jpg)

Sent from my BKL-L09 using Tapatalk


Are your internal walls not stuffed with soundproofing/insulation to deaden noise and helping  to have rooms at different temps. 🤔
Title: Re: Home energy saving tips /ideas...
Post by: DuncanM on 09 November, 2021, 02:34:49 pm
DuncanM I was reading about the gadgets on this page last night.
https://www.heritage-house.org/damp-and-condensation/solving-damp-problems-in-your-home/controlling-humidity.html
Which made me think of the things I posted about a couple of months back, single room MVHR, like this sort of thing. They sound like a good idea but no idea if they are any good or not...https://www.fastlec.co.uk/blauberg-heat-recovery
Those look great, I will have to investigate.  Thanks for the links :) .
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 09 November, 2021, 08:35:07 pm
I still think that the biggest problem we face in the UK is the expectation that, when it is 0C outside, every room in our house will be over 21C.

Why?

I am getting so so so so so fucking pissed off with people thinking we shouldn't be warm. It's 2021 and we have both the means and the technology such that we can sit in our homes at 21+°C when it's -20°C outside, and with zero emissions.

It is simply criminal that house builders have not been building better quality housing in the last four decades. We've known about high quality insulation, sealing, and the rest of the Passivhaus standard since as far back as the 80's. With such a building I should be able to be my comfortable 23°C with just the input of a single candle.

It's gross negligence on behalf of the government that more is not being done to make zero emission heating possible for more people. it's gross incompetence that efforts to improve insulation have failed to reach the levels we need through poor design of the bureaucracy behind it.

But, in all this, we should not be shaming people for wanting to be warm and comfortable. If you wanna turn the heating off and wrap up in a blanket, go for it. But don't go trying to shame others.

Yes space heating is approx 17% of emissions. But the only thing stopping this being fixed is capitalism. The technology is there. It's just not evenly distributed. And the only thing stopping that is ideological belief in the scarcity of money. There's no excuse for it.

J
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 09 November, 2021, 09:13:19 pm
My graph informs me that our heating has run for over 3 hours on two days this month, with an average of 95min/day, to maintain an indoor average temperature around 20C.  That's higher than usual for the outdoor temperature because barakta is currently living in the (relatively cold) dining room, and we're pissing all the heat out of the downstairs a few times a week by doing the wheelchair ramp dance.

If it were properly cold, it would be a lot higher.  But as rental scum we can't insulate anything, and have to make do with intelligent use of heating.

(https://www.ductilebiscuit.net/gallery_albums/random/Screenshot_at_2021_11_09_12_29_20.png)
This geek appreciates your nice graph. :)
I'm quite impressed the temp of your home is so stable for such a short period of heating. Our bedroom was down at 14.5°C at 6am one morning this weekend (am guessing that was the morning after it had been blowing a hoolie all night) after the heating going off the evening before.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 09 November, 2021, 11:11:07 pm
Are your internal walls not stuffed with soundproofing/insulation to deaden noise and helping  to have rooms at different temps. 🤔

Dinnae be daft, it's 2 layers of plasterboard either side and some wood hauding it aw up.

I'd need individual room thermostats for that anyway, I'd been randomly messing around with the lockhead shields because they've got plastic caps that let me adjust them and I can't help my self but fiddle with shit.
Some rooms were still cold with a south wind long after the room with the thermostat is up to temperature, and v.v. with a north wind.


If I want that... then I need to find a plot, a shitload of money and pronto before my dad's too aged to do the architect/project management side of things... because there's no fucking way that I... squirrel.

Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 10 November, 2021, 01:26:09 pm
I still think that the biggest problem we face in the UK is the expectation that, when it is 0C outside, every room in our house will be over 21C.

Why?

I am getting so so so so so fucking pissed off with people thinking we shouldn't be warm. It's 2021 and we have both the means and the technology such that we can sit in our homes at 21+°C when it's -20°C outside, and with zero emissions.

It is simply criminal that house builders have not been building better quality housing in the last four decades. We've known about high quality insulation, sealing, and the rest of the Passivhaus standard since as far back as the 80's. With such a building I should be able to be my comfortable 23°C with just the input of a single candle.

It's gross negligence on behalf of the government that more is not being done to make zero emission heating possible for more people. it's gross incompetence that efforts to improve insulation have failed to reach the levels we need through poor design of the bureaucracy behind it.

But, in all this, we should not be shaming people for wanting to be warm and comfortable. If you wanna turn the heating off and wrap up in a blanket, go for it. But don't go trying to shame others.

Yes space heating is approx 17% of emissions. But the only thing stopping this being fixed is capitalism. The technology is there. It's just not evenly distributed. And the only thing stopping that is ideological belief in the scarcity of money. There's no excuse for it.

J

Houses not being insulated decently is a separate issue from people having unrealistic temperature expectations.

Bodies adapt - when I lived in australia my body was used to the heat. every year, summer started, there would be a day when I *felt* the change, and then the heat was less suffocating afterwards.

I've been living up in the Hebrides for a good few months now and my body is used to the generally cooler conditions, partly because we don't heat our house all the time. MrsC has also adapted.

Sure we have better technology. Saying that we should always be keeping houses at 21C 'because we have the technology' isn't much different from saying we should all the time use  motorised transport  'because we have the technology'.

Both acts (heating and using cars) have an environmental cost. People (in the west) have become accustomed to using technology to adapt the environment rather than letting bodies do some of the adaption.
Title: Re: Home energy saving tips /ideas...
Post by: DuncanM on 10 November, 2021, 01:33:19 pm
I don't think we should always be keeping our houses at 21 degrees, but always keeping them at a temperature that is comfortable seems reasonable.
Different people run according to different thermostats, and I think we need to accept that a reasonable temperature for one person might be unbearably cold for another.

We can fix the eco cost of heating houses if we want to. If we choose not to, that's not the fault of the person for whom 20 degrees makes them feel cold, and them being cold is not going to save the planet.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 10 November, 2021, 01:41:46 pm


Houses not being insulated decently is a separate issue from people having unrealistic temperature expectations.

Bodies adapt - when I lived in australia my body was used to the heat. every year, summer started, there would be a day when I *felt* the change, and then the heat was less suffocating afterwards.

I've been living up in the Hebrides for a good few months now and my body is used to the generally cooler conditions, partly because we don't heat our house all the time. MrsC has also adapted.

Sure we have better technology. Saying that we should always be keeping houses at 21C 'because we have the technology' isn't much different from saying we should all the time use  motorised transport  'because we have the technology'.

Both acts (heating and using cars) have an environmental cost. People (in the west) have become accustomed to using technology to adapt the environment rather than letting bodies do some of the adaption.

I lived for a number of years in a house that in the middle of winter would be about 12°C inside. You don't adjust. You're just paralysed by cold. You can't function cos of all the clothing and blankets needed to simply exist.

You might be comfortable at temps under 20°C. But that doesn't mean you should impose that on others. We should strive for better quality housing so people can be comfortable without destroying the planet. Esp as the technology already exists, it's just not being used because capitalism.

I now live in a home with good insulation, and where the heating is based on an efficient shared city heat system. It can be done. And it should be done. Simply telling people to be uncomfortable isn't going to work. Making it people's individual responsibility isn't going to work.

J
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 10 November, 2021, 03:42:02 pm


Houses not being insulated decently is a separate issue from people having unrealistic temperature expectations.

Bodies adapt - when I lived in australia my body was used to the heat. every year, summer started, there would be a day when I *felt* the change, and then the heat was less suffocating afterwards.

I've been living up in the Hebrides for a good few months now and my body is used to the generally cooler conditions, partly because we don't heat our house all the time. MrsC has also adapted.

Sure we have better technology. Saying that we should always be keeping houses at 21C 'because we have the technology' isn't much different from saying we should all the time use  motorised transport  'because we have the technology'.

Both acts (heating and using cars) have an environmental cost. People (in the west) have become accustomed to using technology to adapt the environment rather than letting bodies do some of the adaption.

I lived for a number of years in a house that in the middle of winter would be about 12°C inside. You don't adjust. You're just paralysed by cold. You can't function cos of all the clothing and blankets needed to simply exist.

You might be comfortable at temps under 20°C. But that doesn't mean you should impose that on others. We should strive for better quality housing so people can be comfortable without destroying the planet. Esp as the technology already exists, it's just not being used because capitalism.

I now live in a home with good insulation, and where the heating is based on an efficient shared city heat system. It can be done. And it should be done. Simply telling people to be uncomfortable isn't going to work. Making it people's individual responsibility isn't going to work.

J
I accept that not everyone can adapt. However most can and do.

Before we moved here I was concerned about how my partner would cope. She has systemic arthritis and hasn't coped will with cold.

She's surprised me. Working out in the barn on pottery for hours at and (an unheated, drafty, very very damp barn). When she puts the heating on, she chooses a temp of about 18-19 C.

Quote
You don't adjust. You're just paralysed by cold. You can't function cos of all the clothing and blankets needed to simply exist.
I accept that was your experience. It isn't mine.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 10 November, 2021, 03:55:02 pm
We all adapt to a degree, otherwise no one would be able to move from London to Singapore and subsequently walk down the street. I lived in Georgia one summer, I got used to the heat (I wouldn't say it was pleasant), but I also lived through the notably coldest winter in Ottawa a few years before (froze my ears solid).
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 10 November, 2021, 06:31:42 pm
It's not simply a case of adaptation. (QG has made the rest of this point so I provide only an example)
I have a cycling friend who will not remove his arm and leg warmers until it's over 20C
I think about putting them on around 10C

Despite being born in South Yorkshire he has lived within 5 miles of me from around Primary 1 to until last January when I moved slightly further south.

Body Composition is part of it, but even when I wiz skinny (I've gained an amount of weight every injury that I then seem unable to lose possibly due to cake addiction) my temperature tolerance was barely different from now.
Yet I am not one of those "shorts all year" people you get round these parts, no sod that my lower legs get cold.

Adaptation does exist, you'll get used to it being mild all year and bloody windy out in the atlantic but it's likely within what is already your tolerance range.
Title: Re: Home energy saving tips /ideas...
Post by: iandusud on 10 November, 2021, 07:13:33 pm
What I do think is irresponsible is to heat a home in winter to the point where you are in a T shirt. We have our thermostat at 16C during the day and turn it up to 18C in the evening when we are less active and tired. I would never think of not wearing warm clothing in winter and am staggered by the temperatures to which many others heat their homes.
Title: Re: Home energy saving tips /ideas...
Post by: L CC on 10 November, 2021, 07:47:12 pm
I think it's hypocritical to claim that personal transport is an individual responsibility when that's easy for you, living in a city in a flat country, but that indoor heating can be solved by technology because you like the heating on. That seems like picking and choosing what works for you.

I can put up with heating at about 17°C but I'm driving an ICE vehicle with just me in it for 14km each way because its 300m climbing and cold, wet windy and horrible out there a lot of the time, and riding is harder work than I can cope with while working 40 hours a week.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 10 November, 2021, 08:03:08 pm
It's all a bit first world though (and yes, shoot me down, I'm sitting here in a house heated to 20.5 degrees) – if you live in a home in many parts of the world, you don't get central heating or a/c.

I'm not saying we have to suffer, but it is clear that humans can adapt to modest changes in temperature (as can any warm-blooded animal, our entire physiology is designed for this).

I think we all forget how awesome our first-world lives are. Much of the world still doesn't live in a place where they can tell Alexa to make it warmer. And even in places where you can, an increasing number can't afford to.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 10 November, 2021, 08:08:00 pm
What I do think is irresponsible is to heat a home in winter to the point where you are in a T shirt. We have our thermostat at 16C during the day and turn it up to 18C in the evening when we are less active and tired. I would never think of not wearing warm clothing in winter and am staggered by the temperatures to which many others heat their homes.

I'm currently sat in a merino base layer, wrapped in a shawl. But sure.

J
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 10 November, 2021, 08:11:41 pm
This thread seems to have turned into the other thread on a similar matter in fight club, maybe we can move the arguing back in there?
Title: Re: Home energy saving tips /ideas...
Post by: ian on 10 November, 2021, 08:16:11 pm
Shut up. I hate people with warmth-generating cats and I'm going to argue with them on the internet. Filthy fur huggers.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 10 November, 2021, 08:18:12 pm
 :demon: :hand: :thumbsup: :smug: :facepalm: ??? ;D :-X :-\ ;)
Title: Re: Home energy saving tips /ideas...
Post by: PaulF on 10 November, 2021, 11:18:02 pm
Perhaps drifting the thread back on topic I just installed a “chimney sheep” a custom lambs wool plug to reduce the drought up the chimney which made a massive improvement.
Title: Re: Home energy saving tips /ideas...
Post by: barakta on 10 November, 2021, 11:54:04 pm
We have a hideous blanket someone bought us that is wrapped in a bin bag and performing a similar purpose up the chimney in our computer room. Same for the bedroom one which we also boarded up after the neighbours house works over the joint roof caused loads of crap, dust etc to fall down into our bedroom (Thanks for warning us BEFORE you did the work, not; fuckers).

When we had single glazed windows we had that plastic film that you can tape round windows which did make a bit of a difference to heat loss from the rooms in this drafty shabby rented house. It cost a few quid a year and was more about comfort as well as possibly reducing our heating bills.

I think our smart heating (home brew) probably saves money/energy too cos we try and keep things stable and avoid heating rooms we are not using. I get cold easily, no matter how many layers I wear (especially how I'm unable to walk and sitting in a wheelchair all day). I do already use hot water bottles and a small heated blanket thing and agree I wouldn't put the heating on till I'd added clothing layers. I live in thermal leggings under clothes and neck scarves from ~October to ~May or thereabouts. I always have felt the cold, even as a child.
Title: Re: Home energy saving tips /ideas...
Post by: tonyh on 11 November, 2021, 08:13:46 am
https://www.heritage-house.org/damp-and-condensation/solving-damp-problems-in-your-home/controlling-humidity.html

I'm a bit uneasy about that website when it suggests that lead paint contains metallic lead:

"The paint, Dear Watson, the paint.... Its Victorian.  Lead paint... Er... Lead - you know the stuff your car battery terminals are made of, that conducts electricity REALLY well! The probe was stuck in the paint, and conducting beautifully."

Also not convinced by:

"The bottom line:  If timber is dry, it won't rot, and beetle won't eat it."

Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 11 November, 2021, 08:59:14 am
"The bottom line:  If timber is dry, it won't rot, and beetle won't eat it."

That is utter twaddle. Beetles love dry wood.


Back to the chimney comments, I recently took out the (original 70s) fireplace and put a inset stove in its place. Not only is the stove more efficient, it blocks the chimney so that there is no draught (when the stove is not lit).
Title: Re: Home energy saving tips /ideas...
Post by: Jurek on 11 November, 2021, 09:20:20 am
Much, if not most, of that site  appears to slag off the work, principals, qualification and equipment used by others - with comparatively little information about what their own product does.
Title: Re: Home energy saving tips /ideas...
Post by: Jaded on 11 November, 2021, 09:29:29 am
It slags off dehumidifiers. Saying they only deal with symptoms. Their machine(s) also deal with symptoms. To deal with the cause, don't have hot showers and baths and don't cook, wash clothes, etc.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 11 November, 2021, 07:31:42 pm
Perhaps drifting the thread back on topic I just installed a “chimney sheep” a custom lambs wool plug to reduce the drought up the chimney which made a massive improvement.
I was pondering one of them as well.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 14 November, 2021, 09:48:09 am
https://www.bbc.co.uk/news/uk-59161949

Utter bollocks - modern washing machines don't last 16 years!  Most fail shortly after the warranty expires.  They are built to a price and most are now unrepairable anyway if the bearings fail (sealed drum). 
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 14 November, 2021, 10:47:52 am
“How modern is modern?” asked Mr Larrington before RZ gets flattened by a tsunami of anecdata…
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 14 November, 2021, 10:53:16 am

https://fullycharged.show/podcasts/podcast-132-the-right-to-repair-with-helen-czerski/

The guy on this podcast claims 8 years as typical life of your average washing machine these days.

J
Title: Re: Home energy saving tips /ideas...
Post by: PaulF on 14 November, 2021, 10:57:08 am
Perhaps drifting the thread back on topic I just installed a “chimney sheep” a custom lambs wool plug to reduce the drought up the chimney which made a massive improvement.
I was pondering one of them as well.

I’d definitely recommend it.  Our problem, albeit a first world one, is balancing the temperature in the rest of the house. As a consequence the hall where the thermostat lives and host to the only non-TRV radiator is a lot warmer which means that the thermostat cuts in sooner making other rooms cooler…
Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 14 November, 2021, 11:25:21 am
Perhaps drifting the thread back on topic I just installed a “chimney sheep” a custom lambs wool plug to reduce the drought up the chimney which made a massive improvement.

To be honest, a drought up the chimney is probably better than the alternative. :P
Title: Re: Home energy saving tips /ideas...
Post by: PaulF on 14 November, 2021, 12:05:46 pm
Perhaps drifting the thread back on topic I just installed a “chimney sheep” a custom lambs wool plug to reduce the drought up the chimney which made a massive improvement.

To be honest, a drought up the chimney is probably better than the alternative. :P

I’d have got away with it if it weren’t for those pesky kids ;D
Title: Re: Home energy saving tips /ideas...
Post by: grams on 14 November, 2021, 01:09:11 pm
Utter bollocks - modern washing machines don't last 16 years!  Most fail shortly after the warranty expires.  They are built to a price and most are now unrepairable anyway if the bearings fail (sealed drum).

A quick google suggests 2-4 million are sold each year, and there are 28 million households in the UK, which gives a lifetime of 7-14 years.
Title: Re: Home energy saving tips /ideas...
Post by: campagman on 15 November, 2021, 08:40:47 pm
Perhaps drifting the thread back on topic I just installed a “chimney sheep” a custom lambs wool plug to reduce the drought up the chimney which made a massive improvement.
I was pondering one of them as well.

I’d definitely recommend it.  Our problem, albeit a first world one, is balancing the temperature in the rest of the house. As a consequence the hall where the thermostat lives and host to the only non-TRV radiator is a lot warmer which means that the thermostat cuts in sooner making other rooms cooler…

This is similar to mine. The inlet valve on the non-TRV rad should only be open a half a turn so that rad warms up slowly. Worth a check.
Title: Re: Home energy saving tips /ideas...
Post by: iandusud on 16 November, 2021, 07:04:13 pm
https://www.bbc.co.uk/news/uk-59161949

Utter bollocks - modern washing machines don't last 16 years!  Most fail shortly after the warranty expires.  They are built to a price and most are now unrepairable anyway if the bearings fail (sealed drum).
A few years ago I needed to buy a new washing machine and opted to buy a budget model. It came with a 2 year warranty and at just of 2 years it stopped working. I stripped it down to find that the motor brushes were worn out. I managed to bodge them to get the machine going again and went to the major retailer to order a new set of brushes. They took order and said they would call me when they were in. A week later I got a call to say that the brushes weren't available separately but they could supply a new motor at over £100 for a machine which cost less than £200 new. I took another look at the motor, noted the make and model, and did a bit of internet searching to discover that it was a very common motor used on many washing machines from all the major manufacturers, and a bit more searching led me to finding new brushes which cost me £2 inc postage. The moral of all this is that these machines are not marketed with the intention of them being repaired. The notion, regardless of the difference in cost between replacing a pair of brushes at £2 as opposed to replacing a machine at £200, that we should replace rather than repair is totally abhorrent to me. No wonder the planet is going down the tubes.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 16 November, 2021, 07:45:24 pm
That should all be stopping now with the right to repair laws.
https://www.bbc.co.uk/news/business-57665593
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 16 November, 2021, 07:47:02 pm
Not that it changes the problem of what it costs to pay someone who knows what they're doing to come out and tell you that it'll be a £100 motor, and then come back and fit it.
Title: Re: Home energy saving tips /ideas...
Post by: Feanor on 16 November, 2021, 08:01:00 pm
Yes, I suspect they will get around the Right to Repair stuffs by making spares available, but at prices which make it uneconomic.
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 16 November, 2021, 08:31:34 pm
Some years ago we bought a washing machine designed for easy repair. Simple to swap out parts, possibly UK built maybe EU, I can't recall. They had two models, one with a 5 year guarantee, one with a 10 year guarantee. All this goodness came at a priced premium.  The company got into financial trouble, starting i think, with no money left in the guarantee pot, then folded completely.

I probably replaced the motor brushes once, then the next repair was uneconomic.

Title: Re: Home energy saving tips /ideas...
Post by: grams on 16 November, 2021, 11:43:18 pm
AIUI these days even cheapo models are brushless because the electronics to drive them have got so cheap.
Title: Re: Home energy saving tips /ideas...
Post by: iandusud on 17 November, 2021, 07:32:57 am
Not that it changes the problem of what it costs to pay someone who knows what they're doing to come out and tell you that it'll be a £100 motor, and then come back and fit it.
Exactly. Even if they make spares available it will mean, as you say, that replacement a motor is available at £100 when all that is required is a pair of brushes, making repair not economically viable.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 17 November, 2021, 09:25:18 am
Spoke to someone the other week about our contrary dishwasher (this alone took two weeks) – he was a bit noncommital about a fix and then if he could get a replacement part, so we'd be punting a couple of hundred quid on a maybe. It actually started working again (till yesterday). It probably is just a glitchy power chip but getting it replaced is non-straightforward and it would certainly be less hassle just to buy a new one (it is eight years old).
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 17 November, 2021, 10:30:23 am
A shout out here to Blackwell and Denton of York.

I phoned them about the non-functioning washing machine, asking how much to call out.

He gave me a price, then detailed instructions on what to check before calling out, including the power off-sequence required to reset the status in the machine.

Kids followed the instructions and machine working again.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 17 November, 2021, 11:49:31 am
Not that it changes the problem of what it costs to pay someone who knows what they're doing to come out and tell you that it'll be a £100 motor, and then come back and fit it.
Exactly. Even if they make spares available it will mean, as you say, that replacement a motor is available at £100 when all that is required is a pair of brushes, making repair not economically viable.
So in fact they're already quite likely compliant with the law. It will change very little. And:
Quote
Only parts for "simple and safe" repairs will be available directly to consumers, including "door hinges on your washing machine or replacement baskets and trays for your fridge-freezers", he said.

"Other parts that involve more difficult repairs will only be available to professional repairers, such as the motor or heating element in your washing machine," he said.
So it would seem that motor parts might actually become less available.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 17 November, 2021, 01:10:49 pm
Not that it changes the problem of what it costs to pay someone who knows what they're doing to come out and tell you that it'll be a £100 motor, and then come back and fit it.
Exactly. Even if they make spares available it will mean, as you say, that replacement a motor is available at £100 when all that is required is a pair of brushes, making repair not economically viable.
So in fact they're already quite likely compliant with the law. It will change very little. And:
Quote
Only parts for "simple and safe" repairs will be available directly to consumers, including "door hinges on your washing machine or replacement baskets and trays for your fridge-freezers", he said.

"Other parts that involve more difficult repairs will only be available to professional repairers, such as the motor or heating element in your washing machine," he said.
So it would seem that motor parts might actually become less available.

And you can forget anything involving a lithium-ion battery.  Hazardous materials, innit.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 18 November, 2021, 06:13:25 pm
May be a stupid question - we have a fixed deal with British Gas until 31 January 2022 - as it's approaching renewal I got a message today offering an "exclusive deal" to fix to 30 April 2023.  After a bit of spreadsheet work and looking at comparisons (the two main ones offered no deals) the BG deal looked good so I clicked the button to go with it.

Now, I assume - or am I wrong? - that the new deal kicks in at at the end of January 2022 . . . .   all the info from BG is confusing and unclear e.g. "you may not see the new tariff in your account for 9 days" . . .    I can't believe that it's not consecutive?
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 18 November, 2021, 06:17:24 pm
If the new deal is less good than your current deal (I assume, given the current market) I could well believe it.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 18 November, 2021, 06:53:48 pm
If the new deal is less good than your current deal (I assume, given the current market) I could well believe it.

That's what worries me - I do have 14 days to decline - I'll try and phone them tomorrow - and then if it isn't consecutive get onto the Ombudsman
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 18 November, 2021, 08:21:08 pm
If the new deal is less good than your current deal (I assume, given the current market) I could well believe it.

That's what worries me - I do have 14 days to decline - I'll try and phone them tomorrow - and then if it isn't consecutive get onto the Ombudsman
Does this apply?
https://www.moneysavingexpert.com/news/2021/10/martin-lewis--don-t-get-pressured-by-your-energy-firm-into-signi/

Some more explanation here
https://www.moneysavingexpert.com/news/2021/10/energy-bill-hikes-hit-millions-as-price-cap-rises-by-p139-yr---b/
I believe felstedrider also said the same a few pages or threads back
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 18 November, 2021, 09:18:11 pm
If the new deal is less good than your current deal (I assume, given the current market) I could well believe it.

That's what worries me - I do have 14 days to decline - I'll try and phone them tomorrow - and then if it isn't consecutive get onto the Ombudsman
Does this apply?
https://www.moneysavingexpert.com/news/2021/10/martin-lewis--don-t-get-pressured-by-your-energy-firm-into-signi/

Some more explanation here
https://www.moneysavingexpert.com/news/2021/10/energy-bill-hikes-hit-millions-as-price-cap-rises-by-p139-yr---b/
I believe felstedrider also said the same a few pages or threads back

Hmm - not sure what all that means in our circumstances with our consumption in a fairly large house.  I think we are somewhat out of the top end of the cap.

The "exclusive deal" (fixed to April 23) is, obviously, more than we are paying now but considerably (about 45%) less than the "let us give you a quote" price which is a fix to December 2023 and has all sorts of cobblers about green stuff.

It really is a jungle - I shall phone them tomorrow and a) find out whether the exclusive April 2023 is consecutive or kicks in now, and  b) see what else they might offer . . . when we moved from AVRO (the late) amidst stacks of fraudulent charging issues from them the BG person offered a deal that wasn't a published one, at considerbly better rates.

The slight upside is that having now been in the house and seen a full year of consumption I have some good data to use for comparisions.  This house only uses gas for CH & HW - cooking is electric - whereas the previous house we cooked with a gas hob and electric oven . . . and the CH/HW boiler wasn't as efficient as here.

Not surprisingly looking at 3 of the comparison sites this evening, putting in our current tariff and accurate consumption figures, none of them would offer any deal at all.

Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 18 November, 2021, 09:48:49 pm
The price cap is nothing to do with your consumption, the cap is on the unit price.
https://www.ofgem.gov.uk/information-consumers/energy-advice-households/check-if-energy-price-cap-affects-you
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 18 November, 2021, 10:06:35 pm
The price cap is nothing to do with your consumption, the cap is on the unit price.
https://www.ofgem.gov.uk/information-consumers/energy-advice-households/check-if-energy-price-cap-affects-you

Sorry - I was confusing myself - it seems that we are paying rather less than the cap on the current fix to 31 Jan 22 and it looks like the exclusive deal to 30 Apr 23 is below the likely cap - both by some margin.
Title: Re: Home energy saving tips /ideas...
Post by: neilrj on 18 November, 2021, 10:06:40 pm
Whenever I've changed supplier in the transfer window (50 day) I've always been transferred before the end of contract.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 18 November, 2021, 10:09:46 pm
The price cap is nothing to do with your consumption, the cap is on the unit price.
https://www.ofgem.gov.uk/information-consumers/energy-advice-households/check-if-energy-price-cap-affects-you

Sorry - I was confusing myself - it seems that we are paying rather less than the cap on the current fix to 31 Jan 22 and it looks like the exclusive deal to 30 Apr 23 is below the likely cap - both by some margin.

What is the kWh price and standing charge you're being offered?
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 20 November, 2021, 11:16:54 am
I've taken the temperature of the water in the tank, purely solar-heated.

A couple of days ago it was 29°C. This morning, after a much cloudier afternoon, 23°C. It's quite annoying, actually, as when the panel was fitted in 2005, I called the guy back because in the height of summer, our chimneys cast a shadow of the PV panel which drives the pump, and we were missing out on several hours' hot water a day. He shifted it to the bottom RH corner of the hot water panel and now, from mid-November onwards, next door's chimney casts a shadow over it in the mid-afternoon - the point at which the pane gets the best of the sun. I suspect that reduces the temperature of the water in the tank by a few degrees when it happens, but usually there are so few days in a year in which it makes any difference that it's not worth sorting out. The call out charge would mean that it would take a few centuries to pay for itself.
Title: Re: Home energy saving tips /ideas...
Post by: MattH on 20 November, 2021, 02:19:44 pm
Quote
Only parts for "simple and safe" repairs will be available directly to consumers, including "door hinges on your washing machine or replacement baskets and trays for your fridge-freezers", he said.

Have you seen the price for replacement plastic drawers for upright freezers? £60 each last time I looked. All three of ours are past their best, if I wasn't happy with the duct tape fix it's getting on for cheaper to replace the freezer than buy drawers that should be single figures of pounds each.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 20 November, 2021, 05:25:02 pm
*Buy* replacement drawers?  Just go for a walk around the streets of Selly Oak (https://yacf.co.uk/forum/index.php?topic=31801.msg2674850#msg2674850) until you find the right model...
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 21 November, 2021, 11:00:02 am
Brr, it was 13.4°C in the bedroom at kitty breakfast o'clock, and when I pointed the thermometer at the ceiling nearest the window it read 9°C.
Maybe I will be getting those flat roofs replaced after all (if HES are still doing 40% cashback).
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 24 November, 2021, 06:46:21 pm
Currently 18C inside - OK with fleece on.

Relatively new thing, is shutting the kitchen door when the hob extractor fan is on, to cut down on warm house air loss...
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 24 November, 2021, 07:22:13 pm
Further evidence that the Guardian is actually cobbled together from YACF threads: https://www.theguardian.com/lifeandstyle/2021/jan/14/cold-as-ice-how-to-stay-warm-without-whacking-up-the-heating
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 29 November, 2021, 07:17:05 pm
Finally got around to contacting HES last week and tonight to contacting 3 of the big insulation installers, so no doubt I will be getting spammed with phone calls tomorrow.
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 30 November, 2021, 04:38:11 pm
Finally got around to contacting HES last week and tonight to contacting 3 of the big insulation installers, so no doubt I will be getting spammed with phone calls tomorrow.
Years ago, a friend of mine was after double glazing. He did lots of research and plumped on $DOUBLEGLAZING_CO.

By coincidence, shortly afterwards he got cold called by $DOUBLEGLAZING_CO.  He broke their script by trying to explain, yes, he actually did want to buy their product.
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 30 November, 2021, 04:57:44 pm
We have a lovely llama wool blanket which lurks on the sofa.  It's deceptively thin.  I love to wrap myself in it when there is a slight chill.  So snuggly, soft and warm.

mllePB seems to prefer putting about thirty layers of clothing on instead.  Weird.  😇
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 30 November, 2021, 06:22:09 pm
While the man who was installing our bathroom and kitchen extraction was out today I clambered up on the worktop to inspect the GBFO holes in the wall and ascertained that our cavity is 70mm deep.
And so far only 1 of the 3 companies I contacted has been in touch, to tell me they're not doing CWI right now. Weird.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 07 December, 2021, 01:43:17 pm
70mm is narrow but not so narrow that it's officially hard to treat. So it might be in the intermediate category of A Bloody Nuisance?

Save energy bills by having a boiler inadequate to cope with the prevailing conditions. It's 16.8 degrees in here, and falling.

Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 07 December, 2021, 01:48:28 pm
I need to whack the wooden top off the sun porches dwarf walls to have a look at whether I can stuff some insulation in or going to need to put in more modern insulated plaster board stuff.

Also think i need to do the floor, ideally before I'm bankrupt from trying to stop the stuff in it freezing (which includes me at tea time)

Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 07 December, 2021, 03:26:59 pm
After my rummage under the floor boards on Saturday I'm not convinced that either CWI or underfloor insulation are necessarily a good idea given the damp solum.

Still haven't heard from 2 of the 3 companies I contacted either.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 07 December, 2021, 03:31:30 pm
Is your underfloor area vented (It should have airbricks).

A membrane, stapled under the flooring joists, will help prevent drafts. Next step up from that is insulation above the membrane, between each joist.
Title: Re: Home energy saving tips /ideas...
Post by: rafletcher on 07 December, 2021, 04:16:50 pm
Is your underfloor area vented (It should have airbricks).

A membrane, stapled under the flooring joists, will help prevent drafts. Next step up from that is insulation above the membrane, between each joist.

Why not just the Kingspan type panel insulation?
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 07 December, 2021, 04:33:53 pm
After my rummage under the floor boards on Saturday I'm not convinced that either CWI or underfloor insulation are necessarily a good idea given the damp solum.

Still haven't heard from 2 of the 3 companies I contacted either.

Solum - had to look that up . . . must find a way to bring that into conversations  ;D
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 07 December, 2021, 04:35:10 pm
Is your underfloor area vented (It should have airbricks).

A membrane, stapled under the flooring joists, will help prevent drafts. Next step up from that is insulation above the membrane, between each joist.

Why not just the Kingspan type panel insulation?

Have a look at Gosforth Handyman on YT - he's doing up an old house did a video on installing insulation under the floorboards a couple of months ago.
Title: Re: Home energy saving tips /ideas...
Post by: aidan.f on 07 December, 2021, 04:53:19 pm
I like diagrams..Also link below starts with ' What can go wrong' Recommendation is for vapour permeable insulation as up thread.

I did our kitchen floor with 100 mm of  foamed in Kingspan  - it's bone dry underneath tho' and I installed a highly effective vapour barrier between it and the underfloor heating.

I'm considering insulating under the lounge and will next time follow this guide:-

https://www.eco-home-essentials.co.uk/underfloor-insulation.html (https://www.eco-home-essentials.co.uk/underfloor-insulation.html)
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 07 December, 2021, 04:59:36 pm
Is your underfloor area vented (It should have airbricks).

A membrane, stapled under the flooring joists, will help prevent drafts. Next step up from that is insulation above the membrane, between each joist.

Why not just the Kingspan type panel insulation?

Have a look at Gosforth Handyman on YT - he's doing up an old house did a video on installing insulation under the floorboards a couple of months ago.

I have been using the exact same method as Gosforth Handyman and it works well imo.  We have enough space for 100mm insulation and we have a mix of brands according to what was available from the merchants at the time.  I have used battens across the underside of the joists to retain the insulation in place and these are fixed in place with screws.  I didn't want the possibility of nails creeping slowly out over the years.

We believe that it has made a significant difference to the warmth of the house.  Our hallway in particular was a very cold place but an inner and an outer front door and underfloor insulation has made it quite toasty.  We do not have any heating there but you wouldn't know it.
Title: Re: Home energy saving tips /ideas...
Post by: aidan.f on 07 December, 2021, 05:26:36 pm
Here is mine before the new floor went down, I was quite particular about vapour and draught proofing

(https://live.staticflickr.com/65535/51731379231_e887f96092_h.jpg)


Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 07 December, 2021, 05:29:33 pm
kingspan is also a pig to fit if you aren't taking up the floorboards, and only have access via a small hatch.
Title: Re: Home energy saving tips /ideas...
Post by: aidan.f on 07 December, 2021, 05:34:47 pm
This is from my link above - I don't know how anyone could insulate without lifting the floor

(https://www.eco-home-essentials.co.uk/images/xsuspended_timber_floor_insulation1.jpg.pagespeed.ic.kgdIEMWDbl.jpg)
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 07 December, 2021, 06:51:44 pm
Yes, there are air vents.
No, I'm not lifting the floor, or GAMI to lift it, it's too much disruption.
Having been rummaging around in the damp there's no danger I'm putting Kingspan anywhere near it.
Not sure a membrane on it's own to stop draughts will help much as the place is mostly carpeted.
I didn't realise you needed a membrane on top as well as underneath the insulation. I'm rapidly going off the idea. Sigh.
Title: Re: Home energy saving tips /ideas...
Post by: aidan.f on 07 December, 2021, 07:50:34 pm
At least the picture helped explain wot is needed.
Top vapour barrier is to prevent 'interstitial condensation' I do like that word . :)
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 08 December, 2021, 10:00:14 am
Yes, there are air vents.
No, I'm not lifting the floor, or GAMI to lift it, it's too much disruption.
Having been rummaging around in the damp there's no danger I'm putting Kingspan anywhere near it.
Not sure a membrane on it's own to stop draughts will help much as the place is mostly carpeted.
I didn't realise you needed a membrane on top as well as underneath the insulation. I'm rapidly going off the idea. Sigh.

You don't have to have a membrane on top and it can be done from below the floor.

If you have carpet, I'm not sure you'll gain a lot - a membrane below will reduce draft but there probably isn't much of a draft getting through the carpet.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 08 December, 2021, 10:43:24 am
Carpets with cats? Insanity. Thus says the man whose first act this morning was cleaning cat sick off the guest room carpet. I wish we'd had wood upstairs too.

Our wood floor downstairs (engineered hardwood) is laid on top of some kind of 'thermal screed' (it's concrete below) and isn't cold on naked tootsies (though it is wood, so not particularly conductive). The step onto the kitchen tile on the other hand – or rather foot...
Title: Re: Home energy saving tips /ideas...
Post by: aidan.f on 08 December, 2021, 01:10:38 pm
Quote
You don't have to have a membrane on top and it can be done from below the floor.
I disagree, and so do the experts.
You may not be concerned about reducing the effectiveness of the insulation by allowing air leakage, but you may be concerned if your joists rot. Of course mostly you will get away with it, but why bother with half a job?
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 08 December, 2021, 02:23:23 pm
Quote
You don't have to have a membrane on top and it can be done from below the floor.
I disagree, and so do the experts.
You may not be concerned about reducing the effectiveness of the insulation by allowing air leakage, but you may be concerned if your joists rot. Of course mostly you will get away with it, but why bother with half a job?
I consulted with the firm that sold the insulation.

To get the vapour barrier to work, your insulation installation must guarantee that the dew point is below the insulation.

Any 'cold spots' in the insulation and you will get condensation held against the timbers.

I went the other route, ensuring that the insulation and the membrane were permeable.

Since you are using an impermeable insulation, yes, I think you need the vapour barrier above the insulation. Better get the installation perfect though (my research suggested that applying foam between the kingspan and the timbers was the only certain method).
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 08 December, 2021, 05:52:19 pm
Carpets with cats? Insanity. Thus says the man whose first act this morning was cleaning cat sick off the guest room carpet. I wish we'd had wood upstairs too.

This is why we had a biscuit coloured carpet in the old place. It hid a multitude of sins. Having said that Pippin used to vomit at least once a day, whereas this pair hardly ever do. Plus wood floor is evil for your neighbours.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 08 December, 2021, 06:01:34 pm
We ain't got no neighbours, one of the benefits of detached house. I wish we'd had wood upstairs so I didn't have to periodically slave away with Dr Beckman's carpet cleaner (my wife, I'm sure, does a deliberately bad job).
Title: Re: Home energy saving tips /ideas...
Post by: Feanor on 08 December, 2021, 06:30:05 pm
Problem with wooden flooring in a bedroom is low coefficient of friction.

If one were to have, say, a Lazy Sunday Morning, by the time you eventually get up you might find the bedroom furniture has re-arranged itself.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 08 December, 2021, 06:43:38 pm
Plus wood floor is evil for your neighbours*.
Well, I (like the look) and don't care, cos they* always slam their front door (and it makes a
hell of a racket). I think that is a problem with older terraced houses that don't have cavity walls.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 08 December, 2021, 07:48:29 pm
Problem with wooden flooring in a bedroom is low coefficient of friction.

If one were to have, say, a Lazy Sunday Morning, by the time you eventually get up you might find the bedroom furniture has re-arranged itself.

You can get little grips for the feet of your furniture that stop it sliding.

They don't stop you from getting interrupted by cats though, and really there are times when you don't want a cat to leap onto your back, and that's one of them. Felix interruptus. No dear, you go on top, I insist.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 08 December, 2021, 08:28:47 pm
Don't need a thring as strenuous as a "lazy Sunday" as I once discovered in a galashiels Airbnb, went to sleep with my head against the wall woke up 3hrs later with my feet at the wall.

That said, I am known in my hiking club for being a total pain the the arse on alpine bunks and floors for moving around.

Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 10 December, 2021, 06:32:30 pm
Well today's fun was finding mould in the bottom of the larder/pantry. Not really a surprise TBH.
This was obviously built in before fridges were common place and judging by the difference in distance to the wall inside and outside the larder it's probably plastered directly onto the inner leaf of the cavity wall. So it's facking freezing in there, so condensation forms on the walls. Not helped by the previous owner painting them in silk finish in there.
Anyway while I was having a bit of a clean tonight I found mould growing on the wall in the bottom. As I say not a big surprise but annoying nonetheless, especially now we have an extracting cooker hood..
So now I need to GAMI to rip the larder out and put up an insulated stud wall there, as well as all the other insulating guff I'm still waiting for responses on.

Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 10 December, 2021, 07:10:55 pm
I know you are now monitoring h&t in a couple of rooms but I hope you are also monitoring your energy consumption more generally. This so that you can bask in the glow of all the hassle worthwhile somewhere down the line. Getting people in is no less strife and effort.

When we moved in here I spent considerable time and backache insulating our loft. It went from from 4" compressed to near useless by years of traffic to 8 or 10" uncompressible under a stilted floor.  I occasionally look back at the before/after temperature differential graphs to remind myself why.  We've never used as much oil as we did that first winter.

OTOH maybe it's just me.  I can't do anything without agonising how to instrument it to verify the results.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 10 December, 2021, 07:17:51 pm
If you don't measure the results what's the point in doing it?

Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 10 December, 2021, 08:04:05 pm
Indeed. When we moved I did go back through the previous years worth of bills noting it all down in my app (what a ball ache that was) and now doing the same here.

Sent some more nagging emails to insulating companies tonight.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 13 December, 2021, 09:55:13 pm
Well one of the companies I nagged on Sat night got back with a 'sod off we're too busy in the West to come up to Furrybootoon'. This is what happens when you have an accredited installer directory that is concentrated in the central belt.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 11 January, 2022, 09:11:45 pm
Finally got a call from an installer up in Banff today who gave me a survey appointment on Thursday.
They then followed up with an email saying actually they can't progress for ne at the moment as we're not on benefits.
Wonder if they have a load of grant money they're expected to use up by the end of the financial year.

Pain in the arse though, all very well encouraging you to be energy efficient if you can't find anyone to do the work.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 15 January, 2022, 03:24:43 pm
On Thursday my friendly plumber came and removed the stupid thermostat in the hall and installed a Drayton Wiser smart heating hub and thermostat. So we've now got weather compensation and I can turn the heating up from the comfort of my poang, which is handy when you've got a cat on your lap.
Title: Re: Home energy saving tips /ideas...
Post by: Canardly on 17 January, 2022, 05:53:40 pm
You could consider applying a layer of Wallrock insulation liner or similar for the mould problem, if you cant get anyone to dryline.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 17 January, 2022, 06:04:48 pm
You could consider applying a layer of Wallrock insulation liner or similar for the mould problem, if you cant get anyone to dryline.

Hmm, I did actually wonder about lining it with cork liner a while back but I was worried I would just be covering up the condensation. It's been a lot better in there since I took all the shoes out of the bottom of the cupboard and the longer we've had the extractor but more help wouldn't be a bad thing.
<goes off to read up on U values...
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 03 February, 2022, 07:45:02 am
I did some more reading on air source heat pumps.  Basically, expect a 50% increase in bills if you currently heat your house 24/7 with gas.  If, like most people, you don't currently heat it when you're out or asleep (I need a COLD bedroom), expect bills to more than double, because an ASHP really needs to be on at a constant low level; it can't heat a house quickly from cold and it is grossly inefficient if you try to make it do so.  So overall kWh use is much higher too.

You'll also need to use resistance heating, at ruinous cost, for your hot water and the inevitable top-ups when the outdoor temperature drops quickly.  They are absolutely hopeless.

I am going to move somewhere that I can have a GSHP and a wood burner.
Title: Re: Home energy saving tips /ideas...
Post by: JellyLegs on 03 February, 2022, 08:53:27 am
Having had an air source heat pump supplying all my heating and hot water needs, except for the occasional log fire for visual pleasure, for the last 8 years, I would have a different view on some of what you say.

If you want a cold bedroom, then the best way is to use TRVs on the radiators, set the bedroom to a much lower temperature and keep the door shut.  That goes whether you heat with oil, gas or heat pump.

Any reading that says expect an X% increase in bills without defining your current usage and housing type / situation is useless as any increase %age will be dependent on your previous use.  I live in a bungalow with converted rooms in the roof, 4 bed.  It was heated by an oil combi boiler supplemented by a wood burner burning about 3 cubic metres of logs a year although I had a free source for the logs so the value of them in these calls is zero.  Cooking was all electric.  I worked from home so heated parts of the house all day.  My overall fuel costs, everything else staying the same, went down by about £200 a year on installing the heat pump.  Savings v gas would be lower (or wiped out) as gas is (was) cheaper to use than oil but I didn’t have that option.  At the time I also benefitted from a substantial incentive payment that increased my savings but as that is no longer available I won’t include that in the figures. I also burn less logs, only really using the log burner now for visual pleasure.

Yes, my electric consumption went up but it was offset by the fact I didn’t need to buy in oil.  Yes, the way to run the system is different to how you would run a traditional boiler. No you don’t need to run resistance heating for hot water at ruinous costs.  I get plenty of usable hot water even in the depths of winter.  Only if all 4 of the family want a bath before going out for the evening do I need to run the immersion and that’s because I don’t have a large enough hot water cylinder. I have insulated my house well but then that is sensible in my book however I heat the house. Yes, the install is more expensive than a gas boiler though again that depends on your existing set up.  Mine was v expensive but partly because I took the opportunity whilst disrupting the house to undertake a number of other changes to the plumbing runs / hardware etc and they all came in the one bill.

Overall, I am happy with my ashy.

Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 03 February, 2022, 09:00:17 am
This tale is scary - someone who switched from oil and is now finding the ASHP very expensive.

https://myhomefarm.co.uk/potential-air-source-heat-pump-running-cost-issue

There are two things going on here: an ASHP struggles when it's cold outside (which is when you need the heating most) and the price of electricity rising due, ironically, to the cost of gas.

For a family already struggling to pay the cost of running a gas boiler, ASHPs are potentially disastrous.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 03 February, 2022, 11:14:14 am
This tale is scary - someone who switched from oil and is now finding the ASHP very expensive.

https://myhomefarm.co.uk/potential-air-source-heat-pump-running-cost-issue

There are two things going on here: an ASHP struggles when it's cold outside (which is when you need the heating most) and the price of electricity rising due, ironically, to the cost of gas.

For a family already struggling to pay the cost of running a gas boiler, ASHPs are potentially disastrous.

Quote
we were paying £250 a month in oil (at 50p per litre) to heat the house

What!
We live in a five bedroom, badly insulated house, with an inefficient Stanley boiler. Spend about £550 every 3 months.

Either they were maintaining a very high temperature in the house, or the insulation is almost nonexistent.

Either would make running an ASHP very expensive.

People who try to treat ASHP like gas or oil heating have problems. Their houses are cold.
Title: Re: Home energy saving tips /ideas...
Post by: rafletcher on 03 February, 2022, 03:12:48 pm

People who try to treat ASHP like gas or oil heating have problems. Their houses are cold.

More like, their houses are not of the appropriate design and construction to benefit from ASHP.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 03 February, 2022, 03:33:23 pm
2 assistances to the cost of resistance heating water Ali gside an AsHP stsrt "have you got a south facing roof"

Must get round to that...

Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 03 February, 2022, 05:03:51 pm
I'm hoping that the double-glazed windows* I'll be getting soon will result in a much warmer
house, and me not needing to turn on the central heating as much.


* To be paid from my retirement lump sum.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 03 February, 2022, 05:25:52 pm
2 assistances to the cost of resistance heating water Ali gside an AsHP stsrt "have you got a south facing roof"

Must get round to that...

Sent from my BKL-L09 using Tapatalk
Most people with a gas boiler and a hot water cylinder crank up the flow temperature, because heating water to the usual 60 deg C using 63 deg C boiler water is asymptotically slow.  Heat pumps are even worse.  Oh, and you can wave goodbye to combis.  Where do you put hot water storage in a newer house without an airing cupboard?
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 03 February, 2022, 05:32:57 pm
Reading a load of other articles on that site the writer comes across as a moaning tightwad.

I note how in the replies to that post it was about 50:50 positive:megative.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 03 February, 2022, 05:36:05 pm
2 assistances to the cost of resistance heating water Ali gside an AsHP stsrt "have you got a south facing roof"

Must get round to that...

Sent from my BKL-L09 using Tapatalk
Most people with a gas boiler and a hot water cylinder crank up the flow temperature, because heating water to the usual 60 deg C using 63 deg C boiler water is asymptotically slow.  Heat pumps are even worse.  Oh, and you can wave goodbye to combis.  Where do you put hot water storage in a newer house without an airing cupboard?
Roof space or eaves for the tank



Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 03 February, 2022, 08:22:47 pm
Nice try, but newer houses don't often have lofts (3 storey - ideal for an ageing population).
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 04 February, 2022, 01:10:44 am
So room in roof?
Odd I lived in a room in roof conversion for years with a hot water tank at my feet and the header tank above my head all behind the plasterboard.

Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: JellyLegs on 04 February, 2022, 08:32:05 am

People who try to treat ASHP like gas or oil heating have problems. Their houses are cold.

More like, their houses are not of the appropriate design and construction to benefit from ASHP.

Would I stick an ASHP in a 1500s timber framed house with lath and plaster walls? No.  Would I stick one in a 1890s house with no insulation? No.  Why?  The first case isn’t likely to ever be suitable due to its construction.  The second case is more because if it hasn’t been subject to basic insulation measures first then there will be a much quicker, much more effective payback by simply insulating the existing building properly.  This was pointed out to me by my ASHP installer when they surveyed the property to work out potential locations etc for the gubbins. I was strongly advised to install another layer of loft insulation and do a few draught excluding works before installing the pump.

My place is a right mix of building styles due to being extended and reconfigured down the years.  The original bungalow is 1930s solid brick wall with single skin (aka likely to be cold as anything) bay windows.  There is a small extension with uninsulated cavity and an extension to the extension with badly insulated cavity (that’s builders for you!).  80% is suspended wooden floor, some is concrete floor, been in place since at least the 1950’s so probably uninsulated.  Roof room put in in 2005 and well insulated.  When I moved in I did redo the loft insulation and over time I have also insulated part of the suspended floor.  The ASHP copes with heating this building.  Even today at 24p per kw hr, the bill is nowhere near the figures quoted in the example above. Either that farmhouse is chuffing huge, in which case one heat pump won’t have enough capacity and will simply be being overworked which may explain some of the issues, or they leave the doors open 24/7.  I run a fire station for one of my jobs, absolutely no insulation to speak of, heated by an oil boiler.  The heating uses substantially less oil per week than that farm and they do literally leave big bay doors open on a regular basis. I really can’t work out what that farm were doing but clearly they are not a normal case on which to base decisions.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 04 February, 2022, 05:15:49 pm
Having looked at their photos I think their farm house is chuffing huge. Even the bathroom they ripped out looked bigger than my lounge and there seems to be a lot of open plan looking shots else where.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 04 February, 2022, 05:45:00 pm
Having looked at their photos I think their farm house is chuffing huge. Even the bathroom they ripped out looked bigger than my lounge and there seems to be a lot of open plan looking shots else where.

There is a reason why houses used to have small rooms.

Great sprawling spaces look lovely, but are hell to heat unless fantastic insulation.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 04 February, 2022, 05:58:18 pm

There is a reason why houses used to have small rooms.

Great sprawling spaces look lovely, but are hell to heat unless fantastic insulation.

Fantastic insulation has been a solved problem for decades. If designed into a building it's not that expensive, and has considerable return on investment.

But, that if is doing a lot of work in that sentence.

And retro fitting it to an existing envelope is really hard.

J
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 09 February, 2022, 06:12:57 pm
Today the doorbell rings:
Them: we're doing free boilers and underfloor insulation if your boiler is over 10 years old in your council area, you don't need to be on benefits.
Me: My boiler is only a year old but I've been beating my head off a brick wall trying to get insulation, can you do it?
Them: don't see why not, phone the office.
Me: <closes door, dances vigorously>
...
Phones their office.
No insulation unless you're getting a boiler as well.

FFS, what do I have to do?   >:(
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 09 February, 2022, 06:33:59 pm
FFS, what do I have to do?   >:(

Hide the boiler?
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 04 March, 2022, 01:43:22 pm
Today the doorbell rings:
Them: we're doing free boilers and underfloor insulation if your boiler is over 10 years old in your council area, you don't need to be on benefits.
Me: My boiler is only a year old but I've been beating my head off a brick wall trying to get insulation, can you do it?
Them: don't see why not, phone the office.
Me: <closes door, dances vigorously>
...
Phones their office.
No insulation unless you're getting a boiler as well.

FFS, what do I have to do?   >:(

So I contacted this lot again online and asked if they would do insulation paid, to which they said yes. They are Green Deal certified which means I could apply for the Home Energy Scotland scheme. Phoned them today to book a survey and they said I might be able to get CWI funded, but didn't elaborate. They're coming next Weds so we'll see what they say...
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 04 March, 2022, 03:42:41 pm
I'm slowly limbering up to looking Into getting panels, 5kwh is just over 5 grand, 4kwh just under and works out at around 30 or 50% of current usage, but of course to get full benefit of that I'd need a battery, which is currently beyond either the dosh I have left over (which is also my oh fuck fund) or the loan options.

Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 04 March, 2022, 03:59:19 pm
I'm hanging on to see if solar panels get subsidised. Plus I suppose it makes sense to get insulated first.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 04 March, 2022, 04:18:50 pm
I'm hanging on to see if solar panels get subsidised. Plus I suppose it makes sense to get insulated first.

Yeah, I'm thankfully well insulated, possibly too well, which means the estimated doubling of gas price is manageable for now
Title: Re: Home energy saving tips /ideas...
Post by: orienteer on 04 March, 2022, 05:08:44 pm
Just had a circular about subsidies for solar panels/batteries. Unfortunately we don't have a south facing roof, and don't see the winter afternoon sun due to taller houses across the road.
Title: Re: Home energy saving tips /ideas...
Post by: Arellcat on 04 March, 2022, 06:02:50 pm
I'm hanging on to see if solar panels get subsidised. Plus I suppose it makes sense to get insulated first.

The HES post-survey technical reports are quite good.

Currently HES isn't funding solar PV panels other than providing the interest-free loans.  For solar thermal they are doing substantial cash-back on top of the loan, but only once the work is confirmed complete.

HES is very picky about the homeowner not commissioning any work until they have applied for the loan and had it approved.  My CWI installer, a well known company that has done many housing association projects, quoted for the work and that quotation was only valid for 30 days, and they needed paid upfront a minimum of seven days before the work started.  Remember that a HES loan application requires an EPC that is no more than three years old and (obviously) it must list as a recommendation the work you plan to have done.  My EPC was five years old, which meant I would have to commission a new one solely to get my CWI funded.  Or rather, part-funded: an EPC costs £75-100, and you must also update your EPC once the works are complete.  Of course, you can include those costs in your loan, except that the CWI loan is to a maximum of £1000.  For my really not very big house the work was £1300, plus a notional 2 x EPCs.  40% cash-back sounds like a lot, but half of that would have been absorbed by the EPCs, so I was set to save myself perhaps only £200 all told.

30 days simply wasn't long enough for me to get a new EPC and for HES to turn around a loan application.  In the end I told them I had been cold in my house for four years and I was so fed up with the whole thing that I would just pay the costs myself and get a new EPC later when I do solar and/or a battery and ASHP.  My local authority is utterly useless (in multiple ways) and had no area-wide schemes I could take advantage of, and of course I don't qualify for any other sort of assistance.  My oil boiler is over 25 years old and I still don't qualify.

The only thing in my favour is that I have the use of an eyewateringly expensive FLIR camera, and am qualified to carry out my own post-installation thermographic survey.
Title: Re: Home energy saving tips /ideas...
Post by: DaveReading on 04 March, 2022, 06:38:43 pm
The only thing in my favour is that I have the use of an eyewateringly expensive FLIR camera, and can carry out my own post-installation thermographic survey.

Doubtless you're looking forward to that.   ;)
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 04 March, 2022, 07:18:59 pm
Aye I would like a battery as well as panels but I'm aware you get help from them twice and I'd rather save the 2nd for combined ASHP, tank and solar water if I can for when the boiler is on its last legs, I can heat the place with the living flame fire... , a 5kwh battery costs more that 5kwh of panels

First company I managed to get In contact currently have a 10 week lead from approval to getting on your roof, and I need to get the brother round to bring some of the AC side up to standard too, feck.

Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 04 March, 2022, 07:25:47 pm
@Arellcat. Not really surprised. It all sounds like a good idea but the practicalities rarely match the idea (if you've read the rest of the thread you'll see I've yet to have any interest from any other companies in even doing a survey).
Annoyingly if our boiler hadn't needed to be replaced by the previous owner of our home just over a year ago we could have had a brand new boiler and underfloor insulation for free.
I hadn't really understood that we would need to get another EPC done though.
Title: Re: Home energy saving tips /ideas...
Post by: campagman on 10 March, 2022, 08:39:13 pm
How about buying shares in a wind farm. I saw this (https://diyinvestoruk.blogspot.com/2022/03/im-hedging-my-future-energy-costs.html) blog post today. I think this blogger is genuine. I know he is interested in ethical investments.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 11 March, 2022, 08:39:26 am
How about buying shares in a wind farm. I saw this (https://diyinvestoruk.blogspot.com/2022/03/im-hedging-my-future-energy-costs.html) blog post today. I think this blogger is genuine. I know he is interested in ethical investments.

Kim had already posted about Ripple.

The blog you link has a much clearer description of the Ripple model. The Ripple website has marketing woo, which put me off.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 11 March, 2022, 01:34:01 pm
I heard about it on an episode of Fully Charged, which also came across better than the Ripple website.  They seem to have a bad case of Marketing.

https://youtu.be/65rlHr6ey4I
http://www.youtube.com/watch?v=65rlHr6ey4I

Also:

https://youtu.be/0OV_diBtXC4
http://www.youtube.com/watch?v=0OV_diBtXC4
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 11 March, 2022, 01:35:55 pm
OK I'll bite. If you were to 'own' part of the wind farm, why can't you get the number of kwh produced taken off your bill rather than just getting the rubbish wholesale price taken off your retail price?
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 11 March, 2022, 01:39:44 pm
Because you're only saving the difference between the running costs of the wind farm and the wholesale market price of electricity.  It costs money to maintain the windfarm, and to transmit and distribute electrons via the national grid.

If you stick solar on your roof, you pay for the cost of the hardware, and any maintenance they require.  But there aren't any transmission or distribution costs.  It's a better return, but it's more expensive per kW and it requires ownership of a roof.
Title: Re: Home energy saving tips /ideas...
Post by: Frank9755 on 11 March, 2022, 01:56:15 pm
I signed up for Ripple after you mentioned it the other day, Kim.  Thanks for flagging it. 

I agree that the site seems a bit overspun but it seemed to be a reasonable proposition - and I like the idea of having a share in a windfarm that provides my electricity (or provides to the grid an equivalent amount to my usage - I'm not quite that gullible!).
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 11 March, 2022, 02:04:42 pm
Yeah, once I got my head round it, it seemed worth a punt.  As an investment, it's marginally better than having the money sitting in the bank.  And surely the end-game is an electricity grid composed almost entirely of cheap renewables (or perhaps competitively priced nuclear, which probably implies fusion), at which point your savings evaporate.  But my take on it is that if that happens, we're winning.

As a way to power your home with green electricity without the luxury of owning a roof, it's compelling.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 15 March, 2022, 10:31:33 am

I got a knock on the door this morning, and it was a guy sent round by the city council (Gemeente Amsterdam). It's called an Energiebox, and it contains a load of things to help a household save energy. There's some LED light bulbs, draft strip (gonna use that on the front door), a draft thing for the letter box (no use to me, but nice for some), a thermometer, a time switch, radiator foil, and some switched outlets/extension cords. They are clearly hoping for the message of reducing standby time, and improving draught proofness of buildings.

(http://pbs.twimg.com/media/FN4fNJcXoAA10lV.jpg)

I think that in all but the worst of buildings, or people with the worst power hygiene, this would actually use more power to produce the contents of the box, than it saves. But it's a nice gesture.

J
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 15 March, 2022, 01:16:29 pm
When barakta was a librarian in the early noughties, they were given boxes of (reasonably decent) CFL lamps to hand out to patrons.  That was probably an effective measure, as many people were still routinely using tungsten at that point, and the library's demographic tended to the poor and elderly.  I suppose there are still some CFL lamps kicking around today that could be replaced with LED, but if they're still going the duty cycle's going to be pretty low.  You have to actively make an effort to buy a non-LED lamp these days.

Power strips are always useful[1], but I'm not sure they're going to do much to help people save energy.

Bonus points if the timer uses more energy than the device it switches off would do in standby :)

Draught excluders are always good, if they're the right ones for your draughty things.  I've no idea how much benefit there is from sticking foil behind your radiators; presumably not much unless it's on an external wall.


I wonder if the objective here is some sort of green box-ticking exercise?


[1] As those following me on twitter (https://twitter.com/kimble4/status/1503123604296421380) will know.

Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 15 March, 2022, 01:23:56 pm
I actually installed a CFL in the standard lamp in the kitchen last week since it was sitting on the cupboard next to said lamp begging to be installed when the bulb (also a CFL) finally expired.

EDF actually sent me a bunch of CFLs free, gratis and for nothing when I switched my energy supplier to them, but they were bugger-all use since they were all bayonet fitting which in my case I have not got >:(
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 15 March, 2022, 02:42:57 pm
When barakta was a librarian in the early noughties, they were given boxes of (reasonably decent) CFL lamps to hand out to patrons.  That was probably an effective measure, as many people were still routinely using tungsten at that point, and the library's demographic tended to the poor and elderly.  I suppose there are still some CFL lamps kicking around today that could be replaced with LED, but if they're still going the duty cycle's going to be pretty low.  You have to actively make an effort to buy a non-LED lamp these days.

It's a good idea, I remember benefiting from such a scheme when I was in the UK.

Quote
Power strips are always useful[1], but I'm not sure they're going to do much to help people save energy.

The main thing that this power strip and the switched outlet offer, are switching. Dutch standard wiring does not include a switch on the power socket, which means that for a lot of modern devices the only way to turn it off standby, and thus save the standby power, is to unplug it. By having a dist board or switched outlet adaptor, you can switch off the stuff without having to pull the plug out. Esp when the sockets that Schuko plugs into are almost all universally awful.

Quote
Bonus points if the timer uses more energy than the device it switches off would do in standby :)

There is that. The suggestion was to use it for my phone charger, but I'm pretty certain the Iq of my phone charger is pretty close to, if now lower than the current use of a timer like this. I might use it with my hydroponics tho...

Quote
Draught excluders are always good, if they're the right ones for your draughty things.  I've no idea how much benefit there is from sticking foil behind your radiators; presumably not much unless it's on an external wall.

The draught strip is going to get installed on the front door this week. I have been meaning to do that, so this is making it simpler, I don't have to goto Gamma first.

The thing with the foil is it's a great idea, It would save my energy usage. But cos I use city heat, we have a temp meter thing stuck to the middle of the radiator. Installing foil behind the radiator upsets the readings from this, so you end up reading more energy used, than actual, which has the side effect of pushing the bill up. 

What I am thinking I will use the foil for however, is my bedroom window. In the summer the heat from the south facing bedroom window results in the bedroom getting very hot, esp during the day. If I can put the foil up on the window, it will reduce the passive solar gain, and make the room more comfortable.

Quote
I wonder if the objective here is some sort of green box-ticking exercise?

"We need to be seen to be doing something. This is something."

I think there is definitely a use case for things like this, but as someone who's pretty energy aware it's not actually as useful for me as it might be for my elderly neighbour.

Quote
[1] As those following me on twitter (https://twitter.com/kimble4/status/1503123604296421380) will know.

I'm just jealous you can use all the sockets in the dist board. I have a number of dist boards where I can't use all the sockets cos the wall warts interfere with each other...

J
Title: Re: Home energy saving tips /ideas...
Post by: BrianI on 15 March, 2022, 02:46:40 pm
When barakta was a librarian in the early noughties, they were given boxes of (reasonably decent) CFL lamps to hand out to patrons.  That was probably an effective measure, as many people were still routinely using tungsten at that point, and the library's demographic tended to the poor and elderly.  I suppose there are still some CFL lamps kicking around today that could be replaced with LED, but if they're still going the duty cycle's going to be pretty low.  You have to actively make an effort to buy a non-LED lamp these days.

Power strips are always useful[1], but I'm not sure they're going to do much to help people save energy.

Bonus points if the timer uses more energy than the device it switches off would do in standby :)

Draught excluders are always good, if they're the right ones for your draughty things.  I've no idea how much benefit there is from sticking foil behind your radiators; presumably not much unless it's on an external wall.


I wonder if the objective here is some sort of green box-ticking exercise?


[1] As those following me on twitter (https://twitter.com/kimble4/status/1503123604296421380) will know.

A few years ago,  energy saving bulbs were posted out as a "door to door" flyer!
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 15 March, 2022, 05:45:09 pm
Power strips are always useful[1], but I'm not sure they're going to do much to help people save energy.

The main thing that this power strip and the switched outlet offer, are switching. Dutch standard wiring does not include a switch on the power socket, which means that for a lot of modern devices the only way to turn it off standby, and thus save the standby power, is to unplug it. By having a dist board or switched outlet adaptor, you can switch off the stuff without having to pull the plug out. Esp when the sockets that Schuko plugs into are almost all universally awful.

Ah, of course.  I'd overlooked that.  Individual switches would be better, but they're a fairly high-end feature.

Quote
Quote
Bonus points if the timer uses more energy than the device it switches off would do in standby :)

There is that. The suggestion was to use it for my phone charger, but I'm pretty certain the Iq of my phone charger is pretty close to, if now lower than the current use of a timer like this. I might use it with my hydroponics tho...

My box of mains electric stuff that might come in useful contains a several of those old-style mechanical timers with the synchronous motor and the pins that you set with a 15-minute resolution.  I think they're rated at about 5W, which - assuming LEDs - is quite a lot compared to the sort of lighting load (Christmas lights, random lamp for burglar-deterrent purposes) they frequently get used for.


Quote
Quote
[1] As those following me on twitter (https://twitter.com/kimble4/status/1503123604296421380) will know.
I'm just jealous you can use all the sockets in the dist board. I have a number of dist boards where I can't use all the sockets cos the wall warts interfere with each other...

They're reasonable enough wall-warts, if you overlook that they were supplied by the retailer, and that each of those radio aid devices is used as a transmitter/receiver pair.  It would have been far more sensible (if not necessarily cheaper) to supply dual-output 2A chargers.  (Phonak themselves will be against the wall for using USB-C to charge the receiver while the transmitter still uses micro-B.)
Title: Re: Home energy saving tips /ideas...
Post by: barakta on 15 March, 2022, 09:15:38 pm
(Phonak themselves will be against the wall for using USB-C to charge the receiver while the transmitter still uses micro-B.)

Partly my fault. The receivers are a new unit - I think the old receivers were micro-USB too - but agree about the fucking plugs! The transmitters are about to be deprecated, but I looked up the new ones which look sillier and cost more, and decided to stick with the older units for this batch and test buy units 0.

I will inevitably end up having to draft guidance sheets for 2 different transmitters come the stock run-out, but for now we have 7 matched pairs and I'm sticking to it! Got to get gen1 running, train up colleagues on using/lending them and then think about how to train up random receptionists for the public users and think about the battery charge maintenance stuff.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 16 March, 2022, 09:43:49 am
We have a CFL in the dining room (which functions as my "office"). Simply cos it was the most appropriate spare when the LED in there previously broke.

What in this context is a "power strip"? Is it another name for an extension cord and socket?
Title: Re: Home energy saving tips /ideas...
Post by: orienteer on 16 March, 2022, 11:52:05 am
Still use CFLs in the lounge and dining rooms, as so far I haven't come across led lamps equivalent to 200W tungstens, which will fit bayonet lamp holders.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 16 March, 2022, 01:29:32 pm
Still use CFLs in the lounge and dining rooms, as so far I haven't come across led lamps equivalent to 200W tungstens, which will fit bayonet lamp holders.

In my quest to eliminate flicker I settled on the Sansi 22/27W lamps (which are excellent), with a BC22 to E27 adaptor.  It does make for a 'long' bulb (ridiculously so if you then exacerbate matters with an E27 smart socket[1]) - which is fine with the large paper lampshades we've fitted in the interest of diffusion, but might not work with your fixtures.


[1] File under 'toys that turned out to be invaluable when barakta was immobile after her hip surgery'.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 16 March, 2022, 01:30:38 pm
What in this context is a "power strip"? Is it another name for an extension cord and socket?

Yeah, typically a metre or so of extension cord and 4 or more sockets.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 16 March, 2022, 01:31:51 pm
Still use CFLs in the lounge and dining rooms, as so far I haven't come across led lamps equivalent to 200W tungstens, which will fit bayonet lamp holders.

200W :jurek:  What are you doing in there, running an interrogation centre ;)
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 16 March, 2022, 01:37:06 pm
Still use CFLs in the lounge and dining rooms, as so far I haven't come across led lamps equivalent to 200W tungstens, which will fit bayonet lamp holders.

200W :jurek:  What are you doing in there, running an interrogation centre ;)

I use them as a main light for cleaning and fettling fiddly things.  The rest of the time the room is lit by more modest dimmable uplighters.

It's particularly important in the kitchen, which has landlord-quality lighting design: A cheap central pendant, and that's it.  The only way to avoid doing the washing-up in your own shadow with that arrangement is to spaff as many photons as possible in all directions, and hope enough of them bounce.
Title: Re: Home energy saving tips /ideas...
Post by: orienteer on 16 March, 2022, 02:29:28 pm
Still use CFLs in the lounge and dining rooms, as so far I haven't come across led lamps equivalent to 200W tungstens, which will fit bayonet lamp holders.

200W :jurek:  What are you doing in there, running an interrogation centre ;)

One light in the dining room, 15' x 12', two in the longer lounge, diffusion by Japanese paper lanterns. Even so sometimes need extra light to read comfortably. Age doesn't help :(
Title: Re: Home energy saving tips /ideas...
Post by: orienteer on 16 March, 2022, 02:33:29 pm
Still use CFLs in the lounge and dining rooms, as so far I haven't come across led lamps equivalent to 200W tungstens, which will fit bayonet lamp holders.

In my quest to eliminate flicker I settled on the Sansi 22/27W lamps (which are excellent), with a BC22 to E27 adaptor.  It does make for a 'long' bulb (ridiculously so if you then exacerbate matters with an E27 smart socket[1]) - which is fine with the large paper lampshades we've fitted in the interest of diffusion, but might not work with your fixtures.


[1] File under 'toys that turned out to be invaluable when barakta was immobile after her hip surgery'.

Have the converters and large paper lanterns, but at £30 each.... :o
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 16 March, 2022, 03:01:55 pm
Can't remember if it was someone on here or my brother that pointed out the fairly major safety issue with bayonet-Es adaptors that due to the potential for neutral switching you definitley want to isolate at the consumer unit before fitting

Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: Kim on 16 March, 2022, 03:06:31 pm
Still use CFLs in the lounge and dining rooms, as so far I haven't come across led lamps equivalent to 200W tungstens, which will fit bayonet lamp holders.

In my quest to eliminate flicker I settled on the Sansi 22/27W lamps (which are excellent), with a BC22 to E27 adaptor.  It does make for a 'long' bulb (ridiculously so if you then exacerbate matters with an E27 smart socket[1]) - which is fine with the large paper lampshades we've fitted in the interest of diffusion, but might not work with your fixtures.


[1] File under 'toys that turned out to be invaluable when barakta was immobile after her hip surgery'.

Have the converters and large paper lanterns, but at £30 each.... :o

I paid £25 for two.  But that was in 2020.

What's the going rate for a high-power CFL?
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 16 March, 2022, 03:07:22 pm
Can't remember if it was someone on here or my brother that pointed out the fairly major safety issue with bayonet-Es adaptors that due to the potential for neutral switching you definitley want to isolate at the consumer unit before fitting

Yes, they should be treated as potentially live.  As should bayonet sockets, tbh, as it's so easy to inadvertently stick your finger in them (DAHIKT).  They're all shit, and probably wouldn't be allowed if invented today.

The main risk (of the outer part of the Edison screw becoming live, due to polarity roulette in the bayonet socket) can be mitigated by ensuring the adaptor completely encloses the metal of the ES screw, and by fitting it to the lamp before installing them in the BC socket.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 16 March, 2022, 03:39:39 pm
yebbut Edison screw are so susceptible to poor contacts (not screwed in quite far enough, jamming and working their way out). I hate them.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 16 March, 2022, 04:26:54 pm
GU10 is a pain in the hoop for alignment.


Sent from my BKL-L09 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 16 March, 2022, 06:36:48 pm
I hate them too.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 16 March, 2022, 06:50:48 pm
GU10 is a pain in the hoop for alignment.

I dunno, Farnham isn’t that bad ;D
Title: Re: Home energy saving tips /ideas...
Post by: MattH on 17 March, 2022, 06:27:48 pm
Yes, they should be treated as potentially live.  As should bayonet sockets, tbh, as it's so easy to inadvertently stick your finger in them (DAHIKT).  They're all shit, and probably wouldn't be allowed if invented today.

Back when I was a PSO, not only didn't we have that new fangled internet in our halls bedrooms (had to go down to the computer centre for that), one of the halls didn't actually have any mains sockets in the rooms. The only power was the pendant light fitting. Therefore everyone in there got BC double adaptors to allow both a light bulb and a BC plug on the end of a long bit of wire that had 13A sockets on the end. Wired to non-engineering student standards, with ancient hall electricity infrastructure that was only intended for light bulbs, what could possibly go wrong?
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 17 March, 2022, 07:06:17 pm
I've got a BC male plug in my box of mains electric stuff that might come in useful.  Fortunately, so far, it hasn't.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 17 March, 2022, 07:20:33 pm
Yes, they should be treated as potentially live.  As should bayonet sockets, tbh, as it's so easy to inadvertently stick your finger in them (DAHIKT).  They're all shit, and probably wouldn't be allowed if invented today.

Back when I was a PSO, not only didn't we have that new fangled internet in our halls bedrooms (had to go down to the computer centre for that), one of the halls didn't actually have any mains sockets in the rooms. The only power was the pendant light fitting. Therefore everyone in there got BC double adaptors to allow both a light bulb and a BC plug on the end of a long bit of wire that had 13A sockets on the end. Wired to non-engineering student standards, with ancient hall electricity infrastructure that was only intended for light bulbs, what could possibly go wrong?

Sometime in the eighties, before Raves were a thing, I was asked to "come and run some power" for a pop-up event. The venue was a disused cinema in S London. To get to the source of the power involved climbing through a back window and in through the window of a neighbouring property. Where there was a single room with a pendant and a male bayonet adapter.

- How many lights do you want to run off this?
- Oh, not just the lights, the PA as well. Is that a problem?
-  ::-) go and get a gennie
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 19 March, 2022, 03:58:53 pm
Call Me Dave's decision to 'cut the green crap' is costing is all £150 pa. Thanks Dave.
https://www.theguardian.com/money/2022/mar/19/david-cameron-green-crap-energy-prices
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 24 March, 2022, 01:11:27 pm
Items left on standby might be responsible for 23% of your domestic electricity use.
https://www.centrica.com/media-centre/news/2021/vampire-devices-drain-22bn-from-uk-households/
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 24 March, 2022, 01:21:45 pm
Quote
However, almost one in four (23%) said that they will continue to leave appliances on standby when inactive despite the fact it could save them money. Over two in five (43%) said this was because the effort of switching them off isn’t worth the cost saving and one in four (25%) said they just don’t care.

Presumably their leading questions didn't provide a way to say "that standby load is performing a useful function", which covers most of our baseload.  Also, you can save decent amounts of power by using smart heating and lighting controls, but that implies some electronics running continuously to provide that control.

Also, the usual rubbish about unplugging phone chargers, but I suppose that's the best you can do without teaching people year 9 electricity and giving them a power meter to play with.


On a related note, we've been participating in a trial whereby Octopus ask us to reduce our electricity consumption by some percentage at times when the grid is particularly fossil-fuel-heavy.  So far, with a bit of notice it's been pretty easy to avoid cooking electrically during the evening peak, and relatively straightforward to stay in bed a bit longer in the morning, but the real challenge is the midnight-2am slot, where - other than a bit of computer use and hot water[1] as we get ready for bed - it's nearly all baseload.  Last time we failed to meet the target because the fridge came on.  I've now fitted it with a smartplug so I can monitor its energy consumption, and shed the load at specific times[2], but that seems a bit above and beyond what the typical customer can achieve.


[1] Gas boiler needs a couple of hundred watts to do its thing.
[2] Legitimate use for an internet-connected fridge?
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 24 March, 2022, 01:58:01 pm
Items left on standby might be responsible for 23% of your domestic electricity use.
https://www.centrica.com/media-centre/news/2021/vampire-devices-drain-22bn-from-uk-households/

"research by British Gas has revealed that Brits could save 23% on their electricity bills each year"

um shouldn't that read

"research by British Gas has revealed that 23% of Brits could save on their electricity bills each year"?

Because (1) it's a poll; (2) the 23% figure appears below as the proportion of people who say they won't switch stuff off; and (3) using the figures on the page that's 76 W 24 hours a day which would be a large number of TVs, phone chargers, etc.

Oh and "each year" is superfluous - a percentage doesn't change whether it's each day, each year or each decade.
Title: Re: Home energy saving tips /ideas...
Post by: MattH on 24 March, 2022, 07:03:41 pm
I've now fitted it with a smartplug so I can monitor its energy consumption, and shed the load at specific times

I may have missed this, but which smartplug are you using that gives a load measurement? I've got a couple of different types, but they only let me turn things on and off.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 24 March, 2022, 08:26:25 pm
I've now fitted it with a smartplug so I can monitor its energy consumption, and shed the load at specific times

I may have missed this, but which smartplug are you using that gives a load measurement? I've got a couple of different types, but they only let me turn things on and off.

Thread about smartplugs here: https://yacf.co.uk/forum/index.php?topic=117751.0

My current favourite is https://www.mylocalbytes.com/products/smart-plug-pm-uk on the basis:
1) It's available, unlike the BlitzWolf one I mention in that thread.  ETA: Ohdear, appears to be out of stock.
2) It doesn't melt if you pass substantial current through it, unlike my previous favourite Athom one I mention in that thread.
3) It comes with Tasmota pre-installed, so no need for internet-of-shit could services or digging about with spudgers to re-flash the firmware with something sensible.

Even if you don't care about Tasmota, https://templates.blakadder.com/ is a useful resource for determining the foibles and capabilities of hardware.
Title: Re: Home energy saving tips /ideas...
Post by: MattH on 24 March, 2022, 08:50:56 pm
Thanks. I've not done anything with Tasmota, other than Hive (for my heating, plus a couple of bits that came bundled) I've been using standard Zigbee for keeping things local. HA for overall control, obviously all that stuff sits on its own VLAN.

I must have a look at Tasmota, I know my son has been playing with it and I've got the kit to hand to reflash if I don't get something preflashed.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 24 March, 2022, 09:35:50 pm
Items left on standby might be responsible for 23% of your domestic electricity use.
https://www.centrica.com/media-centre/news/2021/vampire-devices-drain-22bn-from-uk-households/

Ugh.

UK average household electricity usage is 242 kWh per month. That's 55.66Kwh per month just on standby, assuming 30 days in a Month, that's 77 watts per hour.

Since 2013, EU rules have said that devices must not consume more than 0.5 Watts in standby or in off mode. Thus if 23% of an average households' electricity usage, This suggests that the typical household has 154 devices in their home.... Assuming that most people's devices are 9 years old or younger... Which given our consumer society, is not unreasonable*.

I think it's plausible that 10 or 15 years ago 77w of device standby usage in a typical household would not be unreasonable. At the same time light bulbs were >5x more energy demanding. The energy efficiency improvements over the last decade or two have had a massive impact in reducing our national energy consumption. *BUT* we've largely hit all the low hanging fruit there. Any further improvements are likely to be small and painful to achieve. When I moved into my flat in Canterbury in the middle of the first decade of the century, my bedroom had three 100w R80 incandescent bulbs. That same room now has three 9w LED bulbs. Those are the sort of energy savings we can't expect to be getting with current tech to the next generation of tech.

Put simply, it's a nice soundbite, but I don't think most houses are burning up 23% of their energy on standby.

J

* Note, network connected devices can consume 3-12w.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 24 March, 2022, 09:52:37 pm
Not unless they're defining standby to include what the fridge is doing when the door is closed and similar...
Title: Re: Home energy saving tips /ideas...
Post by: hubner on 24 March, 2022, 09:54:57 pm
I heard someone on the radio complaining about energy prices saying they have to wear a jumper now.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 24 March, 2022, 09:57:40 pm
I heard someone on the radio complaining about energy prices saying they have to wear a jumper now.

And?

J
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 25 March, 2022, 08:21:02 am
I heard someone on the radio complaining about energy prices saying they have to wear a jumper now.

I have previously ranted about office working colleagues who insisted on having office aircon set to 25C, rather than wear warmer clothes.

People have become accustomed to being able to wear just a T shirt (or equivalent), year-round. We are going to have to change behaviour.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 25 March, 2022, 08:26:16 am
Items left on standby might be responsible for 23% of your domestic electricity use.
https://www.centrica.com/media-centre/news/2021/vampire-devices-drain-22bn-from-uk-households/
UK average household electricity usage is 242 kWh per month. That's 55.66Kwh per month just on standby, assuming 30 days in a Month, that's 77 watts per hour.

um

(3) using the figures on the page that's 76 W 24 hours a day which would be a large number of TVs, phone chargers, etc.

(& I think you mean 77 watt-hours per hour ;-) )
Title: Re: Home energy saving tips /ideas...
Post by: MikeFromLFE on 25 March, 2022, 08:31:36 am
Now, for something completely different.....
It looks like the local authority are definitely funding us a (small) solar panel array. Four panels on a west-South-west facing roof.
So good so far (although I'll believe the panels when the electrons start flowing, given the saga thus far).

Is it worth thinking about battery storage in this situation?
Not many panels, we're at home during the day, and fully gas heated.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 25 March, 2022, 08:39:51 am
I heard someone on the radio complaining about energy prices saying they have to wear a jumper now.

I have previously ranted about office working colleagues who insisted on having office aircon set to 25C, rather than wear warmer clothes.

People have become accustomed to being able to wear just a T shirt (or equivalent), year-round. We are going to have to change behaviour.
We should but we'd rather drown/burn/etc.
Title: Re: Home energy saving tips /ideas...
Post by: Lightning Phil on 25 March, 2022, 09:33:55 am
Press and hold the standby button for 5 seconds on your sky HD box and it will turn off, rather than go to standby.  The standby light should turn red rather than amber.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 25 March, 2022, 09:47:39 am
Press and hold the standby button for 5 seconds on your sky HD box and it will turn off, rather than go to standby.  The standby light should turn red rather than amber.
Oh no, if you hold it for 5 seconds, it invokes the spirit of The Old One, who will proceed to consume your soul.  By which I mean Uncle Rupert, not Cthulhu.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 25 March, 2022, 10:08:06 am
As someone who used to own a possessed top-loading VCR, heed those words.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 25 March, 2022, 12:34:02 pm
Now, for something completely different.....
It looks like the local authority are definitely funding us a (small) solar panel array. Four panels on a west-South-west facing roof.
So good so far (although I'll believe the panels when the electrons start flowing, given the saga thus far).

Is it worth thinking about battery storage in this situation?
Not many panels, we're at home during the day, and fully gas heated.

[turns over fag packet, sharpens pencil]

For eg, a deep-cycle AGM lead acid battery holding around 110 Ah will cost around £180. You'd have more than one, but let's calculate per battery.

You shouldn't drain it below 50%, so that gives usable 55 Ah @ 12-13V which is somewhere around 650 Wh (P=IV) which at a guess would cost around 10p from the mains.

Assume you cycle once a day (charge in the day, draw when the sun's gone down) that saves 0.1 x 365 x 5 = £182 over 5 years

I don't know if you'd actually get 5 years out of it cycling as deeply as that, and you'd also have to pay for a controller to make sure you don't kill the batteries early by discharging them too much.

Someone will probably be along in a minute to tell me I've got a decimal point in the wrong place, but I reckon the answer is probably no. If you have access to reliable mains electricity, that is.
Title: Re: Home energy saving tips /ideas...
Post by: orienteer on 25 March, 2022, 01:22:52 pm
When revamping our bathroom about three years ago, an LED light unit was fitted above the bathroom cabinet. It has a two pin charging outlet switchable between 115 and 230 volts. Unlike most of these the outlet is permanently live, rather than switched on with the light; I only use it once a week to charge my shaver.

I noticed that the transformer generates quite a noticeable amount of heat, and I have managed to balance the voltage switch between its two design positions, and thus in an effective off position (there's a green LED indicator). Probably not going to save a great deal, but I feel better.  :smug:
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 25 March, 2022, 01:27:56 pm
Are you ready to go totally grid-free?
https://energyswaraj.org/pledge.php

Your climate might vary, as might your consumption (and the reliability of your grid).
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 25 March, 2022, 02:33:08 pm
Now, for something completely different.....
It looks like the local authority are definitely funding us a (small) solar panel array. Four panels on a west-South-west facing roof.
So good so far (although I'll believe the panels when the electrons start flowing, given the saga thus far).

Is it worth thinking about battery storage in this situation?
Not many panels, we're at home during the day, and fully gas heated.

[turns over fag packet, sharpens pencil]

For eg, a deep-cycle AGM lead acid battery holding around 110 Ah will cost around £180. You'd have more than one, but let's calculate per battery.

You shouldn't drain it below 50%, so that gives usable 55 Ah @ 12-13V which is somewhere around 650 Wh (P=IV) which at a guess would cost around 10p from the mains.

Assume you cycle once a day (charge in the day, draw when the sun's gone down) that saves 0.1 x 365 x 5 = £182 over 5 years

I don't know if you'd actually get 5 years out of it cycling as deeply as that, and you'd also have to pay for a controller to make sure you don't kill the batteries early by discharging them too much.

Someone will probably be along in a minute to tell me I've got a decimal point in the wrong place, but I reckon the answer is probably no. If you have access to reliable mains electricity, that is.

In my experience of living off-grid (on a boat, with a PV panel), 70% is about as low as you want to go if you want the batteries to last. If you go below that, with regular use, they will last a couple of years before sulfating. (I used 6V traction batteries, with a decent controller, and got about 2 years out of them. Before then I used 'caravan' deep cycle batteries and they lasted a winter.)

A battery controller will be quite expensive. Then you'll need an inverter - pure sine wave, with battery protection. That will be a few thousand.

It is seldom financially worthwhile to run a battery system at home.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 25 March, 2022, 05:47:47 pm
Agreed - the calculation is the best theoretically possible and not achievable in practice - it also assumes you fully charge every day and use that charge every evening. Which won't happen year round. I have 3 batteries X 115 Ah and use 300-500 Wh out of them a day, less in winter as the solar panels can't keep up with even that. If the batteries last for 5 years (AGM batteries are supposed to if used gently) it will still be much more expensive than grid power.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 25 March, 2022, 06:01:59 pm
When revamping our bathroom about three years ago, an LED light unit was fitted above the bathroom cabinet. It has a two pin charging outlet switchable between 115 and 230 volts. Unlike most of these the outlet is permanently live, rather than switched on with the light; I only use it once a week to charge my shaver.

I noticed that the transformer generates quite a noticeable amount of heat, and I have managed to balance the voltage switch between its two design positions, and thus in an effective off position (there's a green LED indicator). Probably not going to save a great deal, but I feel better.  :smug:

I recently came across a USAnian boggling at the BRITISH approach to electrical safety in bathrooms (Leftpondians just fit normal switches and GFCI-protected sockets), to the effect that we go to all these lengths with our isolating transformers and pull-cord switches ...and then stick a 40A 240V water heater right there in the shower cubicle with you.  Can't help feeling that they've got a point.

I suspect that if it's generating a noticeable amount of heat, de-energising the transformer will pay for itself in prolonged life of the fitting, even if the energy saved is negligable.
Title: Re: Home energy saving tips /ideas...
Post by: orienteer on 25 March, 2022, 08:44:40 pm
When revamping our bathroom about three years ago, an LED light unit was fitted above the bathroom cabinet. It has a two pin charging outlet switchable between 115 and 230 volts. Unlike most of these the outlet is permanently live, rather than switched on with the light; I only use it once a week to charge my shaver.

I noticed that the transformer generates quite a noticeable amount of heat, and I have managed to balance the voltage switch between its two design positions, and thus in an effective off position (there's a green LED indicator). Probably not going to save a great deal, but I feel better.  :smug:

It seems the switch only controls the output, not the transformer input, as it is still getting warm, so I'll have to dismantle it see whether I can readily route the transformer supply via the light switch. I did the opposite to an earlier unit some years ago.
Title: Re: Home energy saving tips /ideas...
Post by: Andy W on 25 March, 2022, 09:24:46 pm
Does anyone have any tips regarding my daughter emptying a 210 litre hot water tank to wash and condition her hair?
Title: Re: Home energy saving tips /ideas...
Post by: LittleWheelsandBig on 25 March, 2022, 09:31:02 pm
Make the tank contain 50 litres instead?
Title: Re: Home energy saving tips /ideas...
Post by: MattH on 25 March, 2022, 09:50:20 pm
Shave her head?
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 26 March, 2022, 06:12:13 pm
Does anyone have any tips regarding my daughter emptying a 210 litre hot water tank to wash and condition her hair?

How long does that take ?

Standard shower should be about 12l a minute so 210l is only a 17.5min shower not excessively long. Tho no idea what she's doing. My hair is down to the middle of my back, and I take 12 mins to wash, condition, shave legs, and clean teeth. But I am a fast showerer. I only wash my hair every 5 days. Rest of the time a shower is sub 3 minutes.

J
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 26 March, 2022, 07:48:02 pm
When revamping our bathroom about three years ago, an LED light unit was fitted above the bathroom cabinet. It has a two pin charging outlet switchable between 115 and 230 volts. Unlike most of these the outlet is permanently live, rather than switched on with the light; I only use it once a week to charge my shaver.

I noticed that the transformer generates quite a noticeable amount of heat, and I have managed to balance the voltage switch between its two design positions, and thus in an effective off position (there's a green LED indicator). Probably not going to save a great deal, but I feel better.  :smug:

I recently came across a USAnian boggling at the BRITISH approach to electrical safety in bathrooms (Leftpondians just fit normal switches and GFCI-protected sockets), to the effect that we go to all these lengths with our isolating transformers and pull-cord switches ...and then stick a 40A 240V water heater right there in the shower cubicle with you.  Can't help feeling that they've got a point.

I suspect that if it's generating a noticeable amount of heat, de-energising the transformer will pay for itself in prolonged life of the fitting, even if the energy saved is negligable.
Some shaver sockets only turn on the transformer when something is plugged in. Some of those say "shavers only" as they can overheat with no load if left turned on for a long time. The transformers are made down to a price, and they scrimp on the iron, resulting in a lot of heating from the reversing magnetic field.

Sockets rated to run toothbrush chargers as well can be a little bit more expensive.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 26 March, 2022, 08:38:49 pm
Take a meter reading next Thursday and submit it.  Otherwise your provider will estimate usage before and after the cap rise, and you can bet they won't err in your favour.
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 29 March, 2022, 06:10:38 pm
Take a meter reading next Thursday and submit it.  Otherwise your provider will estimate usage before and after the cap rise, and you can bet they won't err in your favour.

I'm going to do this, though Octopus have already set our DD to £168/pm.  We're in credit atm, and suspect this credit will increase a fair bit over the summer in advance of the October price sky rocket.

Taken the plunge & bought a new efficient (assuming it doesn't get opened every 5 secs over the summer) fridge freezer.  Our current elderly one has a stated energy consumption of '360kwh/pa'.  But in any event it requires major defrosting around 3 times a yr. 
edit.  using energy consumption monitoring smart plug, current old FF (17-20C ambient) is using 0.9kwh/d
Title: Re: Home energy saving tips /ideas...
Post by: Basil on 29 March, 2022, 08:21:13 pm
Take a meter reading next Thursday and submit it.  Otherwise your provider will estimate usage before and after the cap rise, and you can bet they won't err in your favour.

Thanks Roger.  I'll do that.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 04 April, 2022, 06:17:08 pm
Interesting Octopus blog on their trial nudging people to move their energy usage to balance the grid better as the uptake of heat pumps increases.
https://octopus.energy/blog/equinox-flexibility-trial/?fbclid=IwAR35BZYwQPZuUbdTneampf4gfP9gADz_geDlO-gsUBPiulpkJ9oiL-eiJr8


Meanwhile, 3 weeks later I'm still waiting for an insulation quote from the only installer that would do a survey...
Title: Re: Home energy saving tips /ideas...
Post by: Canardly on 05 April, 2022, 10:53:46 am
We have just had a new roof installed prior to obtaining some PV panels. During the work some cavity foam installation was liberated. The foam was injected 30 plus years ago.  When picking some up it immediately disintegated into dust in the hand. I imagine that it is as thermally efficient as a chocolate tea pot. So pondering whether to have the cavity reblown with rockwool. Removing the existing foam is not a practicable option really.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 05 April, 2022, 11:01:37 am
Probably easier to move house  ;)

There was more than one type of foam and some may be better than others.  Some people turned out to be allergic to the polyurea type, which is bad if you live in a box lined with it!
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 05 April, 2022, 11:07:31 am
I'm deeply skeptical of blown foam. It is widely used on boats, and considered the gold standard for insulation (seals steel away from moisture, supposedly).

However, talking to a boat designer/builder once, he had a contract maintaining lifeboats. Said that when they checked the foam-filled voids in the boats were all sodden; years of exposure and degradation of the foam led to it acting like a sponge. So the boats he designed did not use foam in voids.

Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 05 April, 2022, 03:57:38 pm
Does anyone have any tips regarding my daughter emptying a 210 litre hot water tank to wash and condition her hair?
Standard shower should be about 12l a minute so 210l is only a 17.5min shower not excessively long. TJ

Scottish Water sent me a timer that drops grains for 4 minutes before stopping.
Apparently that's how long a shower should be somewhere that's not exactly known for droughts
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 05 April, 2022, 04:35:09 pm
That was probably decided by a man thobut.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 05 April, 2022, 05:29:31 pm
That was probably decided by a man thobut.
A bald man
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 05 April, 2022, 05:39:15 pm
That was probably decided by a man thobut.
A bald man

Indeed.

I had a quick-ish shower after getting back from a ride earlier.  It appears that I spent almost exactly 14 minutes in the bathroom, of which about 1 minute was spent undressing, rinsing my HRM strap and boggling at a mystery bruise on my arm while the water temperature stabilised (combi boiler).  I was in the shower for about ten minutes, and the remainder was spent drying off and brushing my hair (which isn't as long as quixoticgeek's).

If it were colder outside, I'd have spent a few more minutes in the shower simply getting warm again.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 05 April, 2022, 08:45:22 pm
That was probably decided by a man thobut.
A bald man

Indeed,

I have yet to not turn it.

First time I used it, the temperature hadn't stabilized before the grains were 1/3 of the way through so I now turn it when having seen the stable LED on the control unit I step in.

TMI:
I have plenty of hair despite it seems plenty of hair getting everywhere, I understand how some can be left in the shower, and some can be left on the toilet but how in feck is it there is a layer of it constantly needing cleaned off the tile edge?
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 06 April, 2022, 12:31:33 am
Indeed.

I had a quick-ish shower after getting back from a ride earlier.  It appears that I spent almost exactly 14 minutes in the bathroom, of which about 1 minute was spent undressing, rinsing my HRM strap and boggling at a mystery bruise on my arm while the water temperature stabilised (combi boiler).  I was in the shower for about ten minutes, and the remainder was spent drying off and brushing my hair (which isn't as long as quixoticgeek's).

If it were colder outside, I'd have spent a few more minutes in the shower simply getting warm again.

I used to have shorter hair, and had to wash it every day. These days I wash it every 5 days. As such when i shower it takes me approximately 3 minute, unless I wash my hair or shave my legs, in which case it's 8-11* minutes for the hair, and I've not timed the leg shave as it's not been warm enough for it yet this year.

I know I can do bed to platform 5/6 at Sloterdijk in 20 minutes including a shower.

I don't understand what people do in long showers. But I think this is largely cos I spent many years living in homes with unheated bathrooms, so you got in, did what was needed, and got out as fast as you could before it got too cold.

J

*Depends which shampoo I use.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 06 April, 2022, 12:44:03 am
I don't understand what people do in long showers. But I think this is largely cos I spent many years living in homes with unheated bathrooms, so you got in, did what was needed, and got out as fast as you could before it got too cold.

There's a trade-off there too.  With a Pissy Landlord Electric Shower™ the flow rate that keeps the water warm enough to avoid hypothermia means your hair takes twice as long to rinse.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 07 April, 2022, 12:12:38 pm
A hot water bottle costs 6p an hour, apparently.
https://www.theguardian.com/business/2022/apr/06/martin-lewiss-cost-of-living-guide-offers-advice-to-desperate-households
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 07 April, 2022, 12:47:24 pm
A hot water bottle costs 6p an hour, apparently.
https://www.theguardian.com/business/2022/apr/06/martin-lewiss-cost-of-living-guide-offers-advice-to-desperate-households

If you own a hot water bottle. If you don't you have to buy one. If you're at the point where you're resorting to hot water bottles to stay warm, chances are you don't have the fiver or what ever it is to buy one.

J
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 07 April, 2022, 01:21:28 pm
I'm not sure that applies in the current conditions of suddenly increasing heating costs, where people now relying on a hot water bottle might have had no financial worries last year.
Title: Re: Home energy saving tips /ideas...
Post by: CommuteTooFar on 08 April, 2022, 02:05:44 pm
I planned to turn the heating off until November.  But I have a had a cold that has given me light bronchitis so within days I decided to keep the house toasty until it clears ups. So days after my plan commenced I am heating a 4 bedroom house out of season.  At least its better than double pneumonia.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 08 April, 2022, 02:58:35 pm
Remarkably, I have a few bags of wood left, so I'm burning a few logs in the morning.  The house stays warm after that unless it's really dull and cold outside.
Title: Re: Home energy saving tips /ideas...
Post by: Wombat on 08 April, 2022, 04:30:33 pm
That was probably decided by a man thobut.
A bald man
despite being a bald man myself, my wife very definitely isn't (either bald, or a man) and has bum length hair. She takes less than 10 minutes to shower, and wash and condition her hair.  In my case, I can set her porridge in the microwave for 4.5 minutes, dive into the bathroom, clean my teeth, wash my face and have a shower and get out, just as the microwave pings, so we can have breakfast together.  Just get on with it, don't faff around in there!
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 12 April, 2022, 05:51:22 pm
According to this Octopus are about to buy a heat pump manufacturer.
https://www.businessgreen.com/news/4048180/octopus-energy-swoops-heat-pump-manufacturer-red-multi-million-pound-deal

In other news I *finally* got a quote for underfloor insulation, £710. Shame they didn't also for the CWI I also asked for...
Title: Re: Home energy saving tips /ideas...
Post by: nmcgann on 12 April, 2022, 06:33:19 pm
According to this Octopus are about to buy a heat pump manufacturer.
https://www.businessgreen.com/news/4048180/octopus-energy-swoops-heat-pump-manufacturer-red-multi-million-pound-deal

In other news I *finally* got a quote for underfloor insulation, £710. Shame they didn't also for the CWI I also asked for...
Interesting. Red are very high-end/exclusive at the moment, so I wonder what products they are planning for the mass market.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 12 April, 2022, 06:36:25 pm
According to this Octopus are about to buy a heat pump manufacturer.
https://www.businessgreen.com/news/4048180/octopus-energy-swoops-heat-pump-manufacturer-red-multi-million-pound-deal

In other news I *finally* got a quote for underfloor insulation, £710. Shame they didn't also for the CWI I also asked for...
Interesting. Red are very high-end/exclusive at the moment, so I wonder what products they are planning for the mass market.

I saw a video (Fully Charged or something, I expect) where they explained that they (Octuopus) are trying to work out how to make heat pump installations as modular and standardised as possible, with a view to installing millions of them.  Which is as much about the learning curve for the installers as it is the systems themselves.  Seems like a good idea.
Title: Re: Home energy saving tips /ideas...
Post by: pcolbeck on 14 April, 2022, 07:55:24 am
I'm waiting for my heating engineer to give me a quote for solar water heating panels.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 22 April, 2022, 03:15:35 pm
Finally I have a quote for both underfloor and cavity wall insulation.
Go on the Home Energy Scotland site. My login doesn't work and my request for a new password results in no email.
I email HES only to get an autoreply saying their systems were down for a week and they are catching up on the backlog.
The saga continues.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 22 April, 2022, 04:07:16 pm
Double-glazed window replacements. This will get rid of the draughts I can feel through the
current ones. Expected installation by end of May this year.
Title: Re: Home energy saving tips /ideas...
Post by: Quisling on 25 April, 2022, 11:21:43 am
Good to see that energy monitoring smart plugs have come down in price a good deal over the last year or so and I've just ordered some more so I can permanently monitor the fridge/freezer which has an unhelpfully located plug socket. 

I have also permanently unplugged the DVD player (1.5W standby load - about £4.33 a year at 33p/kWh) and will only plug in as required. 
That freed up a space on a 4 way extension lead (plugged into a smart plug) to add in the Youview box which has a whopping 8W standby load.  That is now scheduled, along with the TV and PS4, to go off between midnight and 7am.

Using a temporary plug in power monitor, it appears that the BT smart hub discs use about 5.7W constantly.  There are 4 here to get the broadband signal adequately to the dark corners of Quisling Towers - annual running cost therefore is about £65!  These are a bit trickier to switch off at night due to scheduled firmware updates, but I've shifted the schedule and will be knocking at least a couple of these off at night now too.

This small stuff really adds up.
Title: Re: Home energy saving tips /ideas...
Post by: Wombat on 25 April, 2022, 12:26:28 pm
Eek, 1.5W is quite a standby load for a DVD player, which basically isn't doing anything at all!  My Sony HD recorder claims 0.1W, obviously the HD on it is only powered up when its doing something.  The blu ray player is only powered up when needed, switched with the home cinema amp, and the Sonos box.

I now have one BT disc thingy, but it doesn't seem to improve things by a significant amount, so I'll only power it up if I'm keen to do something serious right up that end of the house, or just outside.  I must measure the BT Smart hub 2 itself, but the previous Smart hub 1 claimed less than one watt.  I notice that on this one, when I select to dim the blue light ring on it, instead of dimming it, it switches half of it off, so I've got two bright sectors, instead of a dim circle.
Title: Re: Home energy saving tips /ideas...
Post by: slope on 25 April, 2022, 02:31:06 pm
I recently measured my combination of BT Smart Hub 2, the Openreach ONT box and a BT phone that's always plugged in - it recorded 0.349 kW in 24 hours. So at current fixed rate leccy until December, that's ~£25 a year.

Title: Re: Home energy saving tips /ideas...
Post by: Wombat on 25 April, 2022, 02:51:00 pm
It was the wifi repeater disc thingies that were the culprits, rather than the Smart Hub 2 router or ONS/T/whatever box.  I've not measured mine, but will do so soon.
Title: Re: Home energy saving tips /ideas...
Post by: Quisling on 25 April, 2022, 04:36:41 pm

I now have one BT disc thingy, but it doesn't seem to improve things by a significant amount, so I'll only power it up if I'm keen to do something serious right up that end of the house, or just outside.  I must measure the BT Smart hub 2 itself, but the previous Smart hub 1 claimed less than one watt.  I notice that on this one, when I select to dim the blue light ring on it, instead of dimming it, it switches half of it off, so I've got two bright sectors, instead of a dim circle.

I measured my BT disc thingy with the LED on high/medium/low/off and it made no difference within the measurement capability of my plug in power monitor, so <0.1W-ish.

I've also measured my upright freezer - averages 50W over 48 hours of monitoring, running at 59W with the compressor running, ergo it must be running steadily a good deal of the time, costing about £145 a year to run at current tariff.   The fridge/freezer by comparison seems to cycle on/off about every half an hour, going from around 85W to zero and back.  Will monitor that over a longer period when the new smart plugs arrive.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 25 April, 2022, 04:56:39 pm
Starting to get some useful fridge data:

(https://www.ductilebiscuit.net/gallery_albums/random/Screenshot_at_2022_04_25_16_51_20.png)

Interesting that it's averaging almost exactly one Pirate-Ninja kWh/day.

Suspect that power consumption graph will be more interesting over a year...


(Work in progress is to combine the temperature and door monitoring gubbins with some power monitoring gubbins and compressor-switching gubbins in a single dedicated unit.  Then I can muck about with better algorithms for temperature control, potentially taking into account kitchen habits and the wholesale price of electricity.)
Title: Re: Home energy saving tips /ideas...
Post by: chrisbainbridge on 07 May, 2022, 08:21:05 am
Anybody got views or experience of ripple energy which seems to be a co-op for erecting wind farms.
If the Co-op owns the wind farm are they responsible for repairs? Is it like owning a flat where you have to pay for any repairs? How long do wind farms last?
The website looks interesting but lacking substance.

https://rippleenergy.com/ (https://rippleenergy.com/)
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 07 May, 2022, 01:44:41 pm
I signed up for Ripple, because it's one of the few things we can actually do as Generation Rent.

The shares pay for the construction of the wind farm,  its expected life is 25 years (but it may last longer, in which case more cheap electricity).  It's insured against the unexpected (by which I assume things like freak tornadoes and BEAR attack, rather than shoddy turbines or government policy).  At the end of life they'd expect to have to replace the turbines ("re-powering") or retire the wind farm (eg. because technology has moved on, and it's now uneconomical compared to offshore wind or superconducting solar from the Sahara or cold fusion or something).

The information is there, but mostly in videos.  This is what happens when Young People try to market something subtle and unintuitive.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 07 May, 2022, 07:41:13 pm
I need to poke Home Energy Scotland as they've never replied to the email I've sent them but...

It's been a mostly nice day today, not boiling but ok. My office (south facing 1st floor) is boiling while the living room (N facing, ground floor) is still baltic (thermometer said 15 this arvo and I'm wearing 2 fleece blankets and a cat).
Seems to me like I'm missing a trick piping the heat from my office (not used at weekends) to the loafing area. Do such things (not whole house ducting or anything like that) exist that don't require a major project?
I've seen the term 'heat shifter' used on Australian website but not so much here...
Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 09 May, 2022, 09:01:24 am

The information is there, but mostly in videos.  This is what happens when Young People try to market something subtle and unintuitive.


I see this a lot.   There are at least 10 start ups planning to 'reinvent the industry'.   Problem is a lot of them don't understand how it works now......
Title: Re: Home energy saving tips /ideas...
Post by: ian on 09 May, 2022, 09:26:34 am
...

The information is there, but mostly in videos.  This is what happens when Young People try to market something subtle and unintuitive.

I get loads of these – companies planning to reinvent what I'm going to do, here's an 18-minute video that will explain it (and probably ate up 95% of their borrowed capital to produce). Yeah, I'm going to spend the next several minutes watching a video from randoms in my inbox (that doesn't promise extreme tractor action). Try explaining it in a sentence or two with actual words.
Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 09 May, 2022, 09:33:12 am
...

The information is there, but mostly in videos.  This is what happens when Young People try to market something subtle and unintuitive.

I get loads of these – companies planning to reinvent what I'm going to do, here's an 18-minute video that will explain it (and probably ate up 95% of their borrowed capital to produce). Yeah, I'm going to spend the next several minutes watching a video from randoms in my inbox (that doesn't promise extreme tractor action). Try explaining it in a sentence or two with actual words.

Blockchain, AI, machine learning in the cloud including a peer-to-peer exchange.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 09 May, 2022, 09:36:33 am
I hate YouTube "how to" videos.  Once you've got through the long title sequence, it's invariably some twat who spins it out as long as possible, and you can rarely see the bit you weren't sure about. One assembly video for a SRAM T3 had a mystery washer that just disappeared from the sequence, and all I wanted to know was where to put it.  It's only on skme hubs as an undocumented change, and the exploded diagrams don't show it.

SO tried to follow some YouTube instructions for replacing basin taps.  The muppet on the video didn't mention the need for fibre washers between the tap and the connector (they probably re-used the old ones, which rarely works well).  So I was called out at 8pm to sort it.  Luckily I had some washers.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 09 May, 2022, 10:01:50 am
Blockchain is definitely the best solution to all the problems no one actually has.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 09 May, 2022, 10:06:25 am
I need to poke Home Energy Scotland as they've never replied to the email I've sent them but...

It's been a mostly nice day today, not boiling but ok. My office (south facing 1st floor) is boiling while the living room (N facing, ground floor) is still baltic (thermometer said 15 this arvo and I'm wearing 2 fleece blankets and a cat).
Seems to me like I'm missing a trick piping the heat from my office (not used at weekends) to the loafing area. Do such things (not whole house ducting or anything like that) exist that don't require a major project?
I've seen the term 'heat shifter' used on Australian website but not so much here...

These are usually fan-powered (but can also just be free-flowing) ducts from a lower room to an upper room.

Australian houses are built for hot temperatures - and increasingly they are seeing winters with daytime temps in the low teens, dropping to 5C or lower at night.

No central heating, no effective insulation; that is actually pretty cold.

So in houses where there is heating in one room, it makes sense to have ducts in the ceiling into upstairs bedrooms.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 09 May, 2022, 01:18:54 pm
Our Mk 1 Victorian Terrace (and others we've lived in before it) has an almost permanent temperature differential between upstairs and downstairs, and I've often wondered about the practicalities of moving the heat from one to the other.

The closest I've seen to a commercial product are the reversible split-unit air conditioning systems which support multiple room units.  Some of them can heat one room while cooling the other by switching appropriate valves in the refrigerant circuit.  When they're doing this, it can effectively pump heat from one room to the other.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 09 May, 2022, 01:40:23 pm
I did wonder about just putting a fan on the landing ceiling...
Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 09 May, 2022, 02:24:32 pm
Blockchain is definitely the best solution to all the problems no one actually has.

Bit OT but here's some examples of the 'disruption' to come in the energy sector.

https://www.urbanchain.co.uk/
https://www.tesseractenergy.xyz/
https://www.tem.energy/
Title: Re: Home energy saving tips /ideas...
Post by: PhilO on 09 May, 2022, 03:18:51 pm
Anybody got views or experience of ripple energy which seems to be a co-op for erecting wind farms.
If the Co-op owns the wind farm are they responsible for repairs? Is it like owning a flat where you have to pay for any repairs? How long do wind farms last?
The website looks interesting but lacking substance.

https://rippleenergy.com/ (https://rippleenergy.com/)

I came across a report/interview on this on Fully Charged last week (although the video dates back several months): https://www.youtube.com/watch?v=0OV_diBtXC4

Not sure if it tells you anything more than can be gleaned from the website, and certainly isn't short and pithy.

I also note that there's another one, which is more recent than that but which I haven't watched yet:  https://www.youtube.com/watch?v=65rlHr6ey4I

It's certainly an interesting idea, and one to which I'll be dedicating a bit more thought...

Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 09 May, 2022, 03:24:23 pm
Anybody got views or experience of ripple energy which seems to be a co-op for erecting wind farms.
If the Co-op owns the wind farm are they responsible for repairs? Is it like owning a flat where you have to pay for any repairs? How long do wind farms last?
The website looks interesting but lacking substance.

https://rippleenergy.com/ (https://rippleenergy.com/)

I did wonder why they weren't a licensed supplier but it looks like they are using other suppliers facilities (Co-op, Eon and SO mentioned).
Title: Re: Home energy saving tips /ideas...
Post by: DuncanM on 09 May, 2022, 03:31:54 pm
Our Mk 1 Victorian Terrace (and others we've lived in before it) has an almost permanent temperature differential between upstairs and downstairs, and I've often wondered about the practicalities of moving the heat from one to the other.

The closest I've seen to a commercial product are the reversible split-unit air conditioning systems which support multiple room units.  Some of them can heat one room while cooling the other by switching appropriate valves in the refrigerant circuit.  When they're doing this, it can effectively pump heat from one room to the other.
We could really do with one of those, but it would have to go 2 floors (townhouse - office on ground floor is freezing in winter and cold in summer, bedrooms at the top are somewhere between warm and roasting). And yes, we have Tado thermostats and the bedroom ones are basically set to off for a big chunk of the year).
Can't we just install a big tube between the 2 and flip gravity in it? Anti-convection would be ace.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 11 May, 2022, 11:05:23 am
(Sings)
Heat won't pass from a cooler to a hotter
You can try it if you like but you far better notter

(Waits for audience applause not a sossidge :()
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 11 May, 2022, 11:11:20 am
One of my fellow students at university, who got a first despite being clueless, designed a system where condensate was returned to the boiler without a pump.  And no, she didn't use an injector either.  I spent about 20 minutes fruitlessly trying to mansplain that water doesn't flow uphill and nor does it flow from condenser vacuum to 150psi.
Title: Re: Home energy saving tips /ideas...
Post by: pcolbeck on 11 May, 2022, 11:34:07 am
(Sings)
Heat won't pass from a cooler to a hotter
You can try it if you like but you far better notter

(Waits for audience applause not a sossidge :()

Well it will but only statistically tiny amounts. The average will always go from hotter to colder :)
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 11 May, 2022, 12:58:48 pm
(Sings)
Heat won't pass from a cooler to a hotter
You can try it if you like but you far better notter

(Waits for audience applause not a sossidge :()

You'd better send that ditty to the makers of air source heat pumps, quick.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 11 May, 2022, 04:29:22 pm
(Sings)
Heat won't pass from a cooler to a hotter
You can try it if you like but you far better notter

(Waits for audience applause not a sossidge :()

Well it will but only statistically tiny amounts. The average will always go from hotter to colder :)
You missed the emoji for that  :demon:
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 11 May, 2022, 04:34:35 pm
(Sings)
Heat won't pass from a cooler to a hotter
You can try it if you like but you far better notter

(Waits for audience applause not a sossidge :()

You'd better send that ditty to the makers of air source heat pumps, quick.
Heat cannot of itself pass from a cold body to a hotter body. But you don't need to pass heat to make a body hotter,  you just need to squeeze it the right way. I have always found.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 11 May, 2022, 05:25:18 pm
Well, I FINALLY applied for a Home Energy Scotland loan for insulation today. Fingers crossed.
Title: Re: Home energy saving tips /ideas...
Post by: aidan.f on 15 May, 2022, 06:46:00 pm
Quote from Kim « Reply #438 on: 07 May, 2022, 01:44:41 pm »
Quote
I signed up for Ripple, because it's one of the few things we can actually do as Generation Rent.

The shares pay for the construction of the wind farm,  its expected life is 25 years (but it may last longer, in which case more cheap electricity).  It's insured against the unexpected (by which I assume things like freak tornadoes and BEAR attack, rather than shoddy turbines or government policy).  At the end of life they'd expect to have to replace the turbines ("re-powering") or retire the wind farm (eg. because technology has moved on, and it's now uneconomical compared to offshore wind or superconducting solar from the Sahara or cold fusion or something).

The information is there, but mostly in videos.  This is what happens when Young People try to market something subtle and unintuitive.

I presume that ones n-Kw is supplied only 'when the wind blows' so a BEV or Flattery storage maximises ROI.
Title: Re: Home energy saving tips /ideas...
Post by: sojournermike on 15 May, 2022, 07:22:13 pm
Blockchain is definitely the best solution to all the problems no one actually has.

I always make sure to suggest to my IT team that they architect with blockchain;)


The CEO means it when he says it and then they get to explain why not…
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 15 May, 2022, 08:56:47 pm
I presume that ones n-Kw is supplied only 'when the wind blows' so a BEV or Flattery storage maximises ROI.

In financial terms it's all about aggregate numbers of kilowatt-hours, so the grid takes care of that for you.  Obviously if the wind isn't blowing your electrons are as dirty as everyone else's, so battery storage allows you to reduce fossil fuel demand.
Title: Re: Home energy saving tips /ideas...
Post by: DuncanM on 18 May, 2022, 08:47:51 am
Recently we got the smart meter hooked up to the monitor screen that can tell us how much electricity we are using.  It's vaguely illuminating, and I have been going around turning off things. The monitor device runs of 3 AAA batteries, or off a micro usb connector, the lead for which has an adapter for the main socket on it. The Adapter emits a low volume high pitched whine, and sometimes I can hear it when I'm trying to sleep, so I figured I'd just run it off batteries. They last a couple of hours, at which point, the low battery warning alarm sounds and wakes you up! WTF?
And how much juice does it use - have they sent me something that consumes 10W to tell me how to save electricity?
I assume there's no harm in turning the damn thing off all the time that no-one is going to care about what it says?
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 18 May, 2022, 09:17:09 am
Sounds like a really cheap sh!tty wall wart.

Try running the monitor off a phone power pack, or a different usb outlet.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 18 May, 2022, 09:57:50 am
Recently we got the smart meter hooked up to the monitor screen that can tell us how much electricity we are using.  It's vaguely illuminating, and I have been going around turning off things. The monitor device runs of 3 AAA batteries, or off a micro usb connector, the lead for which has an adapter for the main socket on it. The Adapter emits a low volume high pitched whine, and sometimes I can hear it when I'm trying to sleep, so I figured I'd just run it off batteries. They last a couple of hours, at which point, the low battery warning alarm sounds and wakes you up! WTF?
And how much juice does it use - have they sent me something that consumes 10W to tell me how to save electricity?
I assume there's no harm in turning the damn thing off all the time that no-one is going to care about what it says?

Chuck the monitor away - they just don't work . . .  we've had 2 Smart meter installations (at 2 houses, both SMETS2) - monitors frequently read at ridiculous rates - £35,000.00!!!per hour is not uncommon.    The monitor doesn't tell you how to save electricity - your brain does that!
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 18 May, 2022, 11:25:47 am
Whistling noises from switched-mode power supplies are common and not something to be concerned about (the clue's in the name - the regulation is achieved by means of switching on and off at high frequency, which can cause inductor coils to vibrate like a loudspeaker cone), but it can be annoying.

I'd class the monitor things as 'mildly useful'.  The one for our previous meters did at least allow you to access the raw meter reading without moving all the camping kit out of the way.  Our current one doesn't have this useful feature (which is a shame, since our provider stopped being able to access the gas meter some time ago), so it just functions as an whole-house instantaneous power meter (not even that, as it insists in reverting to displaying in pounds rather than Watts after a minute or so).  The main use for that, as far as I can see, is a way to notice that you've left something on.

As I already have the electricity consumption monitored by means of an Arduino counting the flashes of the meter's blinkenlight, which gives me much more useful time-series data, the monitor gathers dust in a box somewhere.

If you actually want to save electricity, going round with a plug-in power meter to scrutinise individual appliances is usually more useful...


A couple of hours on a set of batteries is piss-poor design, though.  Or a fault.  (Or perhaps fussiness about NiMH cell voltage?)

Title: Re: Home energy saving tips /ideas...
Post by: fd3 on 23 May, 2022, 11:41:24 am
Had a quick look at ripple (not videos, because); I got stuck on the idea that I would invest 1.7k over 12 months and get 3.2k back over 25 years - with a 3% inflation (which is currently a low-ball estimate) that's a loss of £500 in return for a big short term investment. 
EDIT - I guess gas prices will rise with inflation, s maybe I'm being overly harsh - but it is a 14 year payback and 190% back on your investment over 25 years is not financially compettitive.
Title: Re: Home energy saving tips /ideas...
Post by: fd3 on 23 May, 2022, 11:57:14 am
Our Mk 1 Victorian Terrace (and others we've lived in before it) has an almost permanent temperature differential between upstairs and downstairs, and I've often wondered about the practicalities of moving the heat from one to the other.

The closest I've seen to a commercial product are the reversible split-unit air conditioning systems which support multiple room units.  Some of them can heat one room while cooling the other by switching appropriate valves in the refrigerant circuit.  When they're doing this, it can effectively pump heat from one room to the other.
When you solve that, let us all know. 
We also have ice cold front room and boiling hot loft room.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 23 May, 2022, 12:58:43 pm
Upstairs in the Asbestos Palace is always degrees warmer (shows the loft insulation is effective, I suppose) to the point all the radiators are pretty much off (other than my wife's office, since she and the cats like to be toasty).

Given we have cavity wall insulation, double-glazing etc. I think marginal gains (it's a detached palace so every wall is external and we have big 2 metre-plus picture windows not the prison windows of modern houses).
Title: Re: Home energy saving tips /ideas...
Post by: hubner on 23 May, 2022, 01:19:37 pm
So a house is south facing, in the warmer months it gets the full blast of the sun on it from morning to evening. The rooms at the front will be over 30 regardless of day or night even though the day time temp could even be in the low 20s. Especially in a share house or flat where you need to keep the doors closed.

Has this been a problem in the past, maybe you need a drafty house in the summer and an insulated one in the winter?
Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 23 May, 2022, 01:33:00 pm
Had a quick look at ripple (not videos, because); I got stuck on the idea that I would invest 1.7k over 12 months and get 3.2k back over 25 years - with a 3% inflation (which is currently a low-ball estimate) that's a loss of £500 in return for a big short term investment. 
EDIT - I guess gas prices will rise with inflation, s maybe I'm being overly harsh - but it is a 14 year payback and 190% back on your investment over 25 years is not financially compettitive.

The forward curve for gas (and power) prices is backwardated*.   The further out you go the cheaper it gets.   The market seems to believe we will become less reliant on gas.


* This is just wholesale and the delivered consumer bill includes other costs but wholesale is the biggest driver.
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 23 May, 2022, 01:46:41 pm
I thought about Ripple as well, but decided I would probably be dead within the proposed timescales.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 23 May, 2022, 01:47:47 pm
I had my 11 year-old Worcester Bosch boiler serviced by a British Gas engineer last week.
He had nothing positive to say about heat pumps (but did say hydrogen would be a good
alternative to gas).
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 23 May, 2022, 03:09:35 pm
I had my 11 year-old Worcester Bosch boiler serviced by a British Gas engineer last week.
He had nothing positive to say about heat pumps (but did say hydrogen would be a good
alternative to gas).

Which is exactly what you'd expect him to say, given the amount of servicing and safety inspections a heat pump is likely to need.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 23 May, 2022, 03:13:22 pm
I thought about Ripple as well, but decided I would probably be dead within the proposed timescales.

I'm working on the principle that if I die I probably won't need much electricity.  Similarly, if early-20s onshore wind becomes a horribly expensive method of generating electricity, and therefore a poor investment, I count that as a net win.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 23 May, 2022, 05:07:33 pm
I had my 11 year-old Worcester Bosch boiler serviced by a British Gas engineer last week.
He had nothing positive to say about heat pumps (but did say hydrogen would be a good
alternative to gas).

Which is exactly what you'd expect him to say, given the amount of servicing and safety inspections a heat pump is likely to need.

Hydrogen would be an absolute nightmare.

I'm quite confident of my ability to safely plumb in gas (particularly given that boats I worked on passed safety inspections).

No way am I touching hydrogen. You'd need to completely replace all parts of gas piping, not sure what would be used for connections.

Sure, in the event of a leak, hydrogen is safer than natural gas.

[edit]

Seems to require stainless steel pipework, then either welded stainless joints or special SS o-ring connectors.

That's not going to be cheap.
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 23 May, 2022, 06:48:22 pm
Sure, in the event of a leak, hydrogen is safer than natural gas.
Methane:- As a gas, it is flammable over a range of concentrations (5.4–17%) in air at standard pressure.
Hydrogen:- Hydrogen gas forms explosive mixtures with air in concentrations from 4–74%

and hydrogen flames are invisible.*

That doesn't look safer to me.


*I guess you could mix something with it to makes the flames visible, in the same way that smelly stuff is added to methane for leak detection purposes.
Title: Re: Home energy saving tips /ideas...
Post by: Quisling on 23 May, 2022, 08:49:41 pm
Current gas boiler models are "hydrogen ready" for up to 20% hydrogen in grid, but that's 20% by volume.  However, hydrogen has only about 1/3 or the heat value per unit volume of natural gas - so 20% hydrogen in grid is actually a reduction of around 12-13% of delivered heat.

What the hydrogen lobby also don't tell you is the dew point at which latent heat is recovered from exhaust is sufficiently low to be around the same sort of temperature for economic operation of a heat pump, so it you think you'd need to upsize your rads for a heat pump then you'd also have to do it for a 100% hydrogen boiler.

Heat pumps can be great, but the system needs to be designed as a whole - not just plop a heat pump in without considering heat distribution, controls integration and user instruction etc.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 24 May, 2022, 12:09:35 am
So a house is south facing, in the warmer months it gets the full blast of the sun on it from morning to evening. The rooms at the front will be over 30 regardless of day or night even though the day time temp could even be in the low 20s. Especially in a share house or flat where you need to keep the doors closed.

Has this been a problem in the past, maybe you need a drafty house in the summer and an insulated one in the winter?
Insulation also keeps heat out.
The biggest problem south facing rooms have in summer is windows, which can be reduced with curtains and opening them.

Sent from my IV2201 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 24 May, 2022, 08:29:32 am
Sure, in the event of a leak, hydrogen is safer than natural gas.
Methane:- As a gas, it is flammable over a range of concentrations (5.4–17%) in air at standard pressure.
Hydrogen:- Hydrogen gas forms explosive mixtures with air in concentrations from 4–74%

and hydrogen flames are invisible.*

That doesn't look safer to me.


*I guess you could mix something with it to makes the flames visible, in the same way that smelly stuff is added to methane for leak detection purposes.

Oddly enough, that makes it safer.

LPG leaks, it has to reach the right mix before it can ignite - so it leaks, and leaks, and leaks, until just the right conditions occur - then you get ignition and the whole bloody house blows up (if you are in a terrace or semi, the neighbouring houses as well).

Hydrogen starts burning early, before a large amount has escaped - and it burns off. Tends lot to form explosive gas clouds.

Plus, LPG has a nasty habit of building up in basements, under floors, entirely un-noticed (this is the reason for stringent safety requirements for boat LPG installations on inland waterways). Hydrogen just floats up and dissipates.
Title: Re: Home energy saving tips /ideas...
Post by: fd3 on 24 May, 2022, 04:24:17 pm
Not totally convinced by Ripple, but what is good about it is that you can invest in smaller sums as opposed to needing 6+k for solar panels or the like.
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 28 May, 2022, 04:39:29 pm
Does anyone know what tariffs Ovo offer with cheaper night time use?

Like all energy suppliers, they are crap aren't very good at saying what they charge in £/kWh.

Are there any suppliers that offer spot pricing to domestic users?
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 28 May, 2022, 07:04:11 pm
Are there any suppliers that offer spot pricing to domestic users?

Octopus Agile.  Not that's that's a good idea in the current climate unless you've got some storage.  It seems to be spending a lot of peak periods at the cap.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 30 June, 2022, 07:42:41 pm
Well, I FINALLY applied for a Home Energy Scotland loan for insulation today. Fingers crossed.
Approval was supposed to be within 7-10 days but I only got my loan offer today.
Not only that but there's a mountain of paper work to fill in, still, and it's a really bizarre process as they don't actually advance you the money until after you've had the work completed.
Anyway, happily when I phoned the installer they said they were quiet waiting for funding for funded projects so they could come anytime from Monday.
Bit earlier than expected but let's get it over with. Next week will be busy, Tuesday the vinyl fitter is coming to do the kitchen floor, the insulation is Thursday and the smart meters that were supposed to be fitted yesterday will be next Friday.
Title: Re: Home energy saving tips /ideas...
Post by: DuncanM on 06 July, 2022, 09:05:48 am
Finally got a sensible quote from someone who is going to have batteries in the next month. So that's going to happen, at which point we'll switch over to Octopus Go.
Also discovered these people: https://cosyhomesoxfordshire.org/ It feels like the Plan Builder is a bit of a Beta (I can't find a way to tell it we have 3 floors not 2), but I think we'll probably get a human in to look a the house and tell us all the things we can do.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 02 September, 2022, 09:50:47 am
Well, I FINALLY applied for a Home Energy Scotland loan for insulation today. Fingers crossed.
Approval was supposed to be within 7-10 days but I only got my loan offer today.
Not only that but there's a mountain of paper work to fill in, still, and it's a really bizarre process as they don't actually advance you the money until after you've had the work completed.
Anyway, happily when I phoned the installer they said they were quiet waiting for funding for funded projects so they could come anytime from Monday.
Bit earlier than expected but let's get it over with. Next week will be busy, Tuesday the vinyl fitter is coming to do the kitchen floor, the insulation is Thursday and the smart meters that were supposed to be fitted yesterday will be next Friday.

Update on this. It's been a bit of a frickin saga. As reported elsewhere the incompetent surveyor didn't notice the asbestos cement garage roof, while the CWI fitters spotted it before they got out of their van.
After several hours of me bumping my gums and some weeks of arguing they decided that my suggestion of hiring a cherry picker would work so I've just paid for that and they should be coming back next Weds.
The underfloor insulation got installed on the right day but they were only able to do 75% of the floor area as the ground slopes and there wasn't room to do the rest.

The living room will still be on the cold side because the front elevation is granite so there's not much more I can do without insulating internally (and there's a chimney but there be dragons). Will see how this winter goes.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 02 September, 2022, 10:01:59 am
New double-glazed windows installed last month. Gap in floorboards identified and sealed.
Title: Re: Home energy saving tips /ideas...
Post by: campagman on 02 September, 2022, 04:12:02 pm
It's normal for me to take a Navy Shower.
https://en.wikipedia.org/wiki/Navy_shower

Sent from my moto g(50) using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 02 September, 2022, 05:02:37 pm
Someone had to! (https://youtu.be/InBXu-iY7cw)
Title: Re: Home energy saving tips /ideas...
Post by: citoyen on 02 September, 2022, 05:32:31 pm
It's normal for me to take a Navy Shower.
https://en.wikipedia.org/wiki/Navy_shower

Sent from my moto g(50) using Tapatalk

Coincidentally, I came in here to post that I have got into the habit of taking “boat showers”, as I have always known them.

What’s more, I take them cold. I’ve become so accustomed to it that I actually dislike warm showers now. I’m positively German.

My son compensates for my frugality by spending 10 minutes in the shower at a time with it on full blast and super hot. :facepalm:

He’s moving out soon. Might change his habits when he’s paying his own bills.

Still need to wean my wife off her massive daily bath though.
Title: Re: Home energy saving tips /ideas...
Post by: Jurek on 02 September, 2022, 05:56:38 pm
I always end a really hot shower with one minute of really cold water.
It means that A) I get to make a noise as if a moose is having sex with me (no previous experience, but I have a vivid imagination)  and B) I am warm once I step out of the shower.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 02 September, 2022, 06:03:38 pm
It's normal for me to take a Navy Shower.
https://en.wikipedia.org/wiki/Navy_shower (https://en.wikipedia.org/wiki/Navy_shower)

Sent from my moto g(50) using Tapatalk
I was always told (when in the RAF) that a squaddie shower was a couple of squirts of deodorant
under one's armpits (without showering) :demon: 
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 02 September, 2022, 07:39:24 pm
We'll I never.  I've been showering like a rating for many a year.  I do indulge in a long shower very occasionally but not often these days.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 02 September, 2022, 09:01:36 pm
It's normal for me to take a Navy Shower.
https://en.wikipedia.org/wiki/Navy_shower (https://en.wikipedia.org/wiki/Navy_shower)

Sent from my moto g(50) using Tapatalk
I was always told (when in the RAF) that a squaddie shower was a couple of squirts of deodorant
under one's armpits (without showering) :demon:
That's a Glasgow shower, usually involving Lynx.

A Glasgow salad is, of course, chips.
Title: Re: Home energy saving tips /ideas...
Post by: The Family Cyclist on 03 September, 2022, 08:42:23 am
Or a whores wash as they were referred to when I was a army cadet
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 06 September, 2022, 06:24:55 am
If Cheesoid freezes the energy cap, do those of us with a fix above the current cap pull out?  There is no penalty in my case.  It looks as if we'll all be paying for it in higher bills for ever, so the only way to win is to go off-grid in future; they'll probably load the standing charges so just saving energy won't offset it.
Title: Re: Home energy saving tips /ideas...
Post by: Wombat on 06 September, 2022, 11:00:36 am
Energy cap my arse, there is no bloody energy price cap!  Until it is fairly applied to ALL fuels, I believe the existing partial cap should be removed.  Another Government abandoning those in rural areas off the gas grid.  The price of heating oil is over three times what it was.
Title: Re: Home energy saving tips /ideas...
Post by: Basil on 06 September, 2022, 11:06:56 am
^^this^^
Title: Re: Home energy saving tips /ideas...
Post by: Paul H on 06 September, 2022, 12:04:04 pm
Energy cap my arse, there is no bloody energy price cap!  Until it is fairly applied to ALL fuels, I believe the existing partial cap should be removed.  Another Government abandoning those in rural areas off the gas grid.  The price of heating oil is over three times what it was.
It isn't just a rural issue.  Many urban properties are not on the gas network and many of those are rented with the tenants having no option to change.  If you think heating your home with oil fired central heating is expensive, try doing so with electric!
Ofgem bases the price cap on the average home using gas/electric in a 80/20 split. It doesn't work for anyone who's usage falls outside that, whatever the reason.  The SNP tried to get this addressed with a bill earlier this year, but it failed to get support. 
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 06 September, 2022, 05:54:45 pm
The former Mrs Z is moving to a house not dissimilar to mine, but with one extra bedroom, and reckons her bills will be £500/month.  Mine are £200/month including the annual spend on firewood, and I'm in all day.  I honestly don't know how some people use so much.  I am not particularly miserly with energy.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 06 September, 2022, 06:09:16 pm
The former Mrs Z is moving to a house not dissimilar to mine, but with one extra bedroom, and reckons her bills will be £500/month.  Mine are £200/month including the annual spend on firewood, and I'm in all day.  I honestly don't know how some people use so much.  I am not particularly miserly with energy.

30 days in a month. That's £16.66 per day. Which at 30p kWh is 55.55 kWh.

That's about 5 times the typical 10kwh a day that many use to describe a households energy usage.

If you had electric heating tho. Not impossible. It's just over 2kw per hour, for 24 hours.

Only heating or cooking would typically consume that amount. Maybe Aircon.

J
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 06 September, 2022, 06:24:29 pm
It's probably the energy provider stoking their bank account.  They are notorious for setting the monthly DD too high.

I did work out my total annual kWh once, but can't find it atm.  I was assuming 1500kg of wood at 5kWh/kg (kiln dried or very, very long-stored) plus metered stuff.  The wood is virtually all the space heating, though.

10kWh/day is improbably low.  I'm using 50kWh/day for space heating in winter, and that's a single stove running at its most efficient output (81% officially but mine is installed with outside air intake*, so may do better).


*I cannot recommend this highly enough: it doesn't suck cold air through every nook and cranny
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 06 September, 2022, 06:27:26 pm
10kWh/day sounds about right for electricity without space or copious amounts of water heating.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 06 September, 2022, 06:29:52 pm
It would seem to be significantly more (x3) than our last bill declared for a four-bedroom detached house with two homeworkers and a love for hot (not golden) showers and sudsy baths.

If the smartmeter is to be believed, on our current variable tariff we're currently using between £3-4/day on both electricity and fuel, which still tallies with the last bill (about £350).
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 06 September, 2022, 06:40:55 pm
The app (ECAS) I was using to record my meter readings has an average daily energy use of 7.3 and 36.8 kwh/day for electric and gas respectively. (It was over 78kwh/day for gas in December, mind).

CWI installation day tomorrow. Allegedly.
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 06 September, 2022, 06:45:00 pm
Smart meter tells us £1.60-£2.07 per day atm. Both fuels.
Title: Re: Home energy saving tips /ideas...
Post by: Paul H on 06 September, 2022, 06:54:02 pm
The former Mrs Z is moving to a house not dissimilar to mine, but with one extra bedroom, and reckons her bills will be £500/month. 

30 days in a month. That's £16.66 per day. Which at 30p kWh is 55.55 kWh.
The calculation depends on when they're expecting their bills will be £500.

Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 06 September, 2022, 07:20:43 pm
The app (ECAS) I was using to record my meter readings has an average daily energy use of 7.3 and 36.8 kwh/day for electric and gas respectively. (It was over 78kwh/day for gas in December, mind).

CWI installation day tomorrow. Allegedly.

While I'm geeking out, comparing the current Pingu Towers with our old flat:
                          Current                                             Previous Igloo
Type                 2 bed 60's semi, part cavity wall   100yo solid stone 1st floor flat (heating from below!), 1 bed,
Insulation        only loft until July                            almost none whatsoever
Heating           GCH & HW but electric shower     GCH & HW & wood stove
Daily gas        36.8                                                    32.3

Not sure how much difference 2 showers a day makes to the gas but interesting to see we're not that much more than in the flat, given we no longer have the stove to help keep cosy). I do really notice the diference in lounge temperature going from 1st floor south facing to a north facing ground floor but hopefully the insulation will help this year.

Looking at the summer gas usage (so hot water) it was 10kwh/day in the last place and only 3kwh/day here where we only have an electric shower. Is an extra 7kwh/day for 2 showers really sensible? Even if we both spent 15m each in the shower that should only be about 5kwh/day for electric shower. (Admittedly I hate the electric shower and can't wait to go back to a proper one.) 
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 06 September, 2022, 07:44:46 pm
Even if we both spent 15m each in the shower
Is that 15m per shower? If so, could that time be reduced?
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 06 September, 2022, 07:55:53 pm
Sure it could, but I plucked that figure out of thin air, no idea what the exact figure is. Just a comparison though.
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 07 September, 2022, 06:39:22 am
Even if we both spent 15m each in the shower
Is that 15m per shower? If so, could that time be reduced?

When having a shower…..we place a bucket under the shower head to catch the water as it warms up, and this goes in our water butt ( not needed now so much, but certainly the last 4 months), we have a riser rail with and additional hand held wand thing on a hose that is operated by a knob, and this also cuts off the shower head. So jump in, get warm and wet, turn said knob half way and it cuts all water, lather up, turn knob and rinse, turn knob for a second go if required. Saves gas and water.

We have no2 daughter and family staying tonight, as they are mid move,and it is astonishing how many lights 2 adults and 2 children can turn on and leave on. It’s like living in Blackpool illuminations, I’m following them round turning them off, they just don’t get it.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 07 September, 2022, 07:50:25 am
We've turned the immersion heater off. Wash up by boiling a kettle.

Haven't measured it, but suspect big energy users will be the washing machine and tumble drier. Both modern A+ devices.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 07 September, 2022, 08:53:22 am

When having a shower…..we place a bucket plastic basin under the shower head to catch the water as it warms up,
I do this too. The water is then used to flush the toilet when necessary.

I had a water meter installed on 26th August. The meter reader this morning was 00001. I won't
send it in to Severn Trent Water. I'll wait until they do one of their half-yearly meter readings
(next one due some time this month).

I also took advantage of some of their water-saving devices (two regulate water flow on sink tap
and shower output, plus a plastic bag, which goes in the toilet cistern, and when filled with water,
acts like a large object in there, taking up a large amount of space, thus reducing the amount
of water that has to fill it after a flush.




 
Title: Re: Home energy saving tips /ideas...
Post by: road-runner on 07 September, 2022, 08:58:37 am
Who turns their oven on and does a batch of baking - pasta bakes, potatoes, pies, cakes and more - just like my mother used to do once a week?

I am guilty of baking potatoes for Saturday lunch and then on Sunday afternoon my wife bakes a cake. We could be better organised for more fuel-efficient baking.
Title: Re: Home energy saving tips /ideas...
Post by: tom_e on 07 September, 2022, 09:34:35 am
I think air fryers are popular for that reason - if you're only wanting to cook a small amount in the oven then they've a lot less to heat up.  Of course, it's another gadget to buy and make space for.  If you already batch cook or have a larger household I can't see there'll be much gain, but for one or two people wanting oven food they look good?
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 07 September, 2022, 09:44:53 am
Or in some cases an air fryer might replace a conventional oven, because of limited space among other factors.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 07 September, 2022, 09:49:31 am
We have one of those 9-in-1 Ninja cooker things which I use a lot, mostly because there are two of us and it's a perfect size and probably more economical than using the big oven.
Title: Re: Home energy saving tips /ideas...
Post by: citoyen on 07 September, 2022, 09:54:26 am
I do baked potatoes in the combi - 350w microwave plus 200C conventional oven. No idea if this saves power. Definitely saves time though.

You can't really batch cook baked potatoes in advance - they don't keep well.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 07 September, 2022, 10:13:02 am
I do baked potatoes in the combi - 350w microwave plus 200C conventional oven. No idea if this saves power. Definitely saves time though.

You can't really batch cook baked potatoes in advance - they don't keep well.
Can you freeze them? I've no idea, it's never occurred to me to even try. I don't know whether batch baking then individual heating in a microwave would even save energy.
Title: Re: Home energy saving tips /ideas...
Post by: citoyen on 07 September, 2022, 10:21:20 am
Can you freeze them? I've no idea, it's never occurred to me to even try. I don't know whether batch baking then individual heating in a microwave would even save energy.

You can freeze them, but IME they lose all the qualities of a good baked potato.

Also, yeah, I'm not convinced cooking them twice would really be a great way to save energy.

This also gets me wondering if oven chips are really more cost efficient than heating oil on the hob and frying fresh potatoes.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 07 September, 2022, 10:27:27 am
This also gets me wondering if oven chips are really more cost efficient than heating oil on the hob and frying fresh potatoes.
In that situation there's also the oil itself to think about – its manufacture, transportation and so on. Only part of which is a direct cost to the consumer but all counts in the overall seed-to-mouth energy chain.
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 07 September, 2022, 10:32:08 am
I'm a convert to our Ninja thingy, relatively recently acquired. I cook chips in it, and use it for meat and fish instead of the oven. I would imagine it saves a considerable amount of electricity, as I'm heating such a small space.

I've found that roasting pork shoulder steaks in it takes far less time than the normal oven and they tend to dry out.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 07 September, 2022, 10:33:54 am
I'm a convert to our Ninja thingy, relatively recently acquired. I cook chips in it, and use it for meat and fish instead of the oven. I would imagine it saves a considerable amount of electricity, as I'm heating such a small space.

I've found that roasting pork shoulder steaks in it takes far less time than the normal oven and they tend to dry out.

The constant blowing (even in bake mode) will do this, so you need to wrap stuff in foil till the end of cooking.
Title: Re: Home energy saving tips /ideas...
Post by: Paul H on 07 September, 2022, 10:42:33 am
There's loads of oven stuff that can be done on a hob with the right pan, this isn't new technology, Dutch Ovens have been around since the 17th century.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 07 September, 2022, 11:18:17 am
Our new/second hand cooker has two ovens. One is small and perfectly decent for meals for two (but not pizza).

Got to be more efficient heating a small oven than a large one.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 07 September, 2022, 12:04:57 pm
This also gets me wondering if oven chips are really more cost efficient than heating oil on the hob and frying fresh potatoes.

Probably depends on how long you keep the oil kicking around to go minging.

They're a massive safety win, of course.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 07 September, 2022, 12:05:28 pm
Safety of the arteries too, or at least so we're told.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 07 September, 2022, 12:08:26 pm
Our new/second hand cooker has two ovens. One is small and perfectly decent for meals for two (but not pizza).

Got to be more efficient heating a small oven than a large one.

Our cooker has two ovens.  The smaller one doesn't have a fan, and takes ages to get up to temperature, so I'm not sure where the break-even point is.  Might try doing SCIENCE...

ETA: Looks like the main oven is 2400W and the small oven is 1300W.  Not that that makes a difference when it's under thermostatic control.  But an oven that takes ages to heat up is at greater risk of being left on for longer.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 07 September, 2022, 12:10:23 pm
Safety of the arteries too, or at least so we're told.

Works for me.  But then my Stupid Digestive System has a low tolerance for chips, so I'm disinclined to eat chips that aren't nice.  Don't think I've had an oven chip since the early noughties.

Presumably the rise in takeaway delivery correlates with a reduction in chip pan fires.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 07 September, 2022, 12:14:24 pm
Or at least a reduction in reported chip pan fires, because those that do occur will be dealt with the chef throwing the kitchen boy's soaking apron over the fire, and the fire brigade Will Not Be Called because that might result in closure.
/c
Title: Re: Home energy saving tips /ideas...
Post by: L CC on 07 September, 2022, 12:25:43 pm
I shower at the pool and my hot meal of the day is in the office. Mr Smith is warmed by his banks of servers. In the evenings I'm planning to keep warm on zwift.
(our 80s detached house has 4 bedrooms and being rented, will not get any more insulation than it currently has).
I'm considering a push to get work to fit a charging point for my bike.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 07 September, 2022, 12:26:25 pm
Or at least a reduction in reported chip pan fires, because those that do occur will be dealt with the chef throwing the kitchen boy's soaking apron over the fire, and the fire brigade Will Not Be Called because that might result in closure.
/c

Fair, but if the chef and kitchen boy are in the same room and sober enough to successfully fight the fire, it greatly increases the chances of a successful apron exthinguishment, which is a Good Thing.


I recall my mum having a chip pan fire at around the time my brother got old enough to use a cooker without adult supervision.  I'm sure it was entirely coincidental that there was a bucket of teatowels soaking in the sink...
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 07 September, 2022, 12:49:58 pm
TBF if (commercial) deep fat frying was that dangerous, the average British high street would be a constant conflagration.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 07 September, 2022, 12:56:27 pm
Commercial stuff regulates the oil temperature properly, which surely helps.  Same as using a dedicated firer(TBAGO) rather than a chip pan on a (possibly gas, for added source of ignition) hob.

It's still mildly impressive that the likes of KFC have minimum wage oiks deep-frying chicken under pressure without the occasional BLEVE.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 07 September, 2022, 01:37:15 pm
If someone has an accident, they just chop them up for nuggets.  As Stalin said: no man, no problem. And everything famously tastes like chicken.
Title: Re: Home energy saving tips /ideas...
Post by: Pingu on 07 September, 2022, 01:44:52 pm
Human flesh is porky meat, hee hee heeeeeeee, thobut.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 07 September, 2022, 02:29:19 pm
Yep, "long pig" notoriously.
Title: Re: Home energy saving tips /ideas...
Post by: citoyen on 07 September, 2022, 04:35:16 pm
Main danger with deep-frying is the oil boiling over. So just make sure you use a tall-sided pan and don't overfill it. And use an induction hob rather than gas. Also helps to make sure the potatoes are properly dry before you chuck them in.

You can tell if the oil is getting too hot because the chips start burning on the outside before they're cooked in the middle. But I take the guesswork out of it by using my thermapen to keep an eye on the temperature.
Title: Re: Home energy saving tips /ideas...
Post by: ScumOfTheRoad on 07 September, 2022, 04:43:36 pm
Search YouTube for deep fried turkey.  Mericans are wont to deep fry whole turkeys for Thanksgiving.
Fill the container with too much oil then when you lower said turkey in... an overflow of flaming boiling oil.

This video takes it one step further with frozen birds...
https://www.youtube.com/watch?v=7gn895y4wkc
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 07 September, 2022, 04:58:24 pm
I was just cooking baked taters last night and thinking it was prolly a lot of energy for 3 taters.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 07 September, 2022, 09:31:10 pm
Wrap them in foil and throw them in the wood burner.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 07 September, 2022, 11:00:41 pm
Commercial stuff regulates the oil temperature properly, which surely helps.  Same as using a dedicated firer(TBAGO) rather than a chip pan on a (possibly gas, for added source of ignition) hob.

It's still mildly impressive that the likes of KFC have minimum wage oiks deep-frying chicken under pressure without the occasional BLEVE.

There's also less chance of the oil from the commercial fryer visiting the source of heat.
A mistake I made while shallow frying a burger in too much oil at Oban SYHA once...
Title: Re: Home energy saving tips /ideas...
Post by: citoyen on 08 September, 2022, 11:52:29 am
Search YouTube for deep fried turkey.

Oh god, yes - seen that before. Mad bastards.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 08 September, 2022, 12:53:16 pm
It's also quite a normal US thing, not an outlying pastime.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 08 September, 2022, 01:56:56 pm
Battered, deep-fried pizza is big in Glasgow.  Mind you, they've probably tried battered, deep-fried everything.  Even battered, deep-fried batter.
Title: Re: Home energy saving tips /ideas...
Post by: The Family Cyclist on 10 September, 2022, 06:01:31 pm
I went to get new insulation rope for my log burner today. There was a queue out the shop (OK it's more of a small unit). I suspect people are going back/to log burners as an alternative to central heating
Title: Re: Home energy saving tips /ideas...
Post by: road-runner on 10 September, 2022, 07:57:25 pm
I suspect people are going back/to log burners as an alternative to central heating

From 2022 new log burners must meet strict emission controls. See here (https://ecologburners.co.uk/no-more-log-burners-in-the-uk-new-2022-ecodesign-regulations/) for example.
Title: Re: Home energy saving tips /ideas...
Post by: orraloon on 10 September, 2022, 08:33:01 pm
Is that a real entity?

Quote:  "Join us in our mission to accelerate the switch to a greener Briton."  Incredible.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 11 September, 2022, 07:05:25 am
Most people don't use log burners properly, and create unnecessary smoke.  Apart from using suitable wood, they need to be run on secondary air (no primary air) once they're going.  If the wood is reluctant to burn without primary air, it needs further chopping or drying.

An appalling practice is to bulk up the fire, turn the air right down, and let it smoulder overnight.  This turns it into a smoke/soot/CO machine.  Unfortunately it's also SOP in many homes.
Title: Re: Home energy saving tips /ideas...
Post by: The Family Cyclist on 11 September, 2022, 07:50:30 am
Most people don't use log burners properly, and create unnecessary smoke.  Apart from using suitable wood, they need to be run on secondary air (no primary air) once they're going.  If the wood is reluctant to burn without primary air, it needs further chopping or drying.

An appalling practice is to bulk up the fire, turn the air right down, and let it smoulder overnight.  This turns it into a smoke/soot/CO machine.  Unfortunately it's also SOP in many homes.

The guy who installed ours then gave a two hour monologue on using it would have your guts for using the wrong air vent or burning anything other than properly dried wood

It was informative but hebhad no sense of humour or even how to not just talk at you
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 26 September, 2022, 06:05:13 pm
We turned the (oil fired) heating right down, with the intention of basically not using it.

Most evenings for the past 2 weeks have lit a fire in the living room stove.

MrsC is away, so I didn't bother with the fire (much to the dog's disgust).

Heating came on in the mornings . . .

So it seems that having a fire going for 3 hours or so was warming the house enough overnight to keep temp above 15C.

I think I'll do that a bit more. Seems better to heat one room to comfort level for a couple of hours than heat a whole house.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 27 September, 2022, 10:52:50 am
Down here in the subtropics we're still leaving a window open all night to make it cool enough to sleep comfortably!
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 27 September, 2022, 11:17:51 am
Woke up at 4am* and went downstairs. It was a bit nippy so fired up the central heating (for the
first time since first week of May)
for half an hour @ 20°c.




*Will probably fall asleep on the settee this afternoon.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 27 September, 2022, 11:22:42 am
20!

It is 12C downstairs in the hall. Warmer in my office, about 17C maybe.

I'm wearing a jumper. Not needed thermals yet.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 27 September, 2022, 11:38:53 am
Serious thought here about how to improve our Victorian semi.

#1 - Replace boiler. Current boiler is ~22 years old, but was class leading at 78% efficiency when we installed. Change to Condensing at 93% efficiency should lead to 20% improvement.

#2 - change our front sashes to slimline double glazed (12mm deep, argon/other gas filled). Units can be bought for about £1,300, not sure about the fitting cost. Uncertain benefit, but 6m2 of single pane glass does a lot to cool a room.

#3 - improve draftproofing on front door, consider if some sort of secondary glazing might be an idea for the stained glass, without making it look too naff.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 27 September, 2022, 12:08:11 pm
Down here in the subtropics we're still leaving a window open all night to make it cool enough to sleep comfortably!

And in Middle Earth we need the upstairs window to make it cool enough to sleep, and central heating to make the downstairs rooms comfortable.
Title: Re: Home energy saving tips /ideas...
Post by: rafletcher on 27 September, 2022, 12:11:13 pm
Serious thought here about how to improve our Victorian semi.

#1 - Replace boiler. Current boiler is ~22 years old, but was class leading at 78% efficiency when we installed. Change to Condensing at 93% efficiency should lead to 20% improvement.

#2 - change our front sashes to slimline double glazed (12mm deep, argon/other gas filled). Units can be bought for about £1,300, not sure about the fitting cost. Uncertain benefit, but 6m2 of single pane glass does a lot to cool a room.

#3 - improve draftproofing on front door, consider if some sort of secondary glazing might be an idea for the stained glass, without making it look too naff.

Biggest improvement - somehow insulate the exposed gable end - our end of terrace has a huge radiator at it's northern end.  But rooms are small, would loose another 4-6", have to move doorways (front, which would then impinge on window, and bedroom (no real frames, old ledge and brace door)) and stairs (already v narrow so can't reduce width). Externally no overhang of slate tiles so external would look distinctly odd. Not easy.
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 27 September, 2022, 12:41:02 pm
I'll probably put the heating on with thermostat set to 17C initially, when we get first frosts...  Currently 19C inside, without heating.
Title: Re: Home energy saving tips /ideas...
Post by: TimC on 27 September, 2022, 12:46:03 pm
Serious thought here about how to improve our Victorian semi.

#1 - Replace boiler. Current boiler is ~22 years old, but was class leading at 78% efficiency when we installed. Change to Condensing at 93% efficiency should lead to 20% improvement.

#2 - change our front sashes to slimline double glazed (12mm deep, argon/other gas filled). Units can be bought for about £1,300, not sure about the fitting cost. Uncertain benefit, but 6m2 of single pane glass does a lot to cool a room.

#3 - improve draftproofing on front door, consider if some sort of secondary glazing might be an idea for the stained glass, without making it look too naff.

I've been working through the same things for my C17th cottage. I'm installing the 12mm DG panels myself; each panel (about 330mm sq) costs around £35. I only have four windows in the old part of the house and one of those is only two panes, so around £490 for all four.

(https://i.imgur.com/ceCjcUu.jpg)

I will also be installing secondary DG on these windows, but that's quite a lot more expensive. The doors are thick oak, and were installed about 30 years ago with quite decent weather and draught sealing. I'm not sure I can do much to improve them, but I'm working on it. My biggest heat loss is the vaulted ceiling in the kitchen, which originally was a Victorian workshop or forge. It has some thin rigid insulation and a layer of 'bubble wrap' under the tiles but I can probably get another 50-60mm Celotex between the (very irregular) joists. But it will be a very messy job!
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 27 September, 2022, 12:51:39 pm
Ham, I would be doing #2 first in terms of priority, although I guess it's then complicated by relative cost for 1 and 2 versus will the boiler break down forever as soon as you've sprung for new windows...
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 27 September, 2022, 02:40:39 pm
Ham, I would be doing #2 first in terms of priority, although I guess it's then complicated by relative cost for 1 and 2 versus will the boiler break down forever as soon as you've sprung for new windows...
Unfortunately, the boiler circuit board went bang last year (for the third or fourth time - it is the Achilles heel of what is, otherwise, a simple, reliable boiler). While our original plan was to sweat it a bit more, my calculation is that changing boiler would put a minimum of £400 a year back for a £3k-ish outlay, so a no-brainer thanks to current energy costs


I've been working through the same things for my C17th cottage. I'm installing the 12mm DG panels myself; each panel (about 330mm sq) costs around £35. I only have four windows in the old part of the house and one of those is only two panes, so around £490 for all four.

(https://i.imgur.com/ceCjcUu.jpg)

I will also be installing secondary DG on these windows, but that's quite a lot more expensive. The doors are thick oak, and were installed about 30 years ago with quite decent weather and draught sealing. I'm not sure I can do much to improve them, but I'm working on it. My biggest heat loss is the vaulted ceiling in the kitchen, which originally was a Victorian workshop or forge. It has some thin rigid insulation and a layer of 'bubble wrap' under the tiles but I can probably get another 50-60mm Celotex between the (very irregular) joists. But it will be a very messy job!


Interesting, I'd be curious how you get on with them "as is" without the secondary glazing. Who did you use for the units?
Title: Re: Home energy saving tips /ideas...
Post by: ScumOfTheRoad on 27 September, 2022, 03:07:37 pm
Talking about boilers, I live in a flat in London which has gas for central heating and cooking.
I replaced the boiler 18 months ago with a Worcester Bosch, plus Hive thermostat. Which seems to be good.
I did not know that electric boilers existed - I would have considered one at the time, though I am not sure if the figures still add up.
No smart meters - chappie came along to fit one to the electric supply and triggered our burglar alarm so did not continue. Actually I am quite happy about that .

I imagine these days that gas is not supplied to apartment buildings, though I may be wrong.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 27 September, 2022, 04:59:45 pm
I don't think electric boilers make financial sense until there is less difference between the cost of electricity and gas.

Meanwhile, today I finally sent off all the proof of payment, guarantees and other assorted paperwork to hopefully get my Home Energy Scotland payout for the CWI and underfloor insulation.
I've only been at this since November!
It's no wonder we have such poor take up of insulation in the UK, they don't exactly make it easy.
Title: Re: Home energy saving tips /ideas...
Post by: road-runner on 27 September, 2022, 08:49:12 pm
I don't think electric boilers make financial sense until there is less difference between the cost of electricity and gas.

I might have misunderstood but I thought that gas is a fossil fuel whereas electricity can be generated using fossil fuels or through renewable sources. As such I thought we should be looking to reduce and eliminate our dependency on fossil fuels.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 27 September, 2022, 08:52:55 pm
I don't think electric boilers make financial sense until there is less difference between the cost of electricity and gas.

I might have misunderstood but I thought that gas is a fossil fuel whereas electricity can be generated using fossil fuels or through renewable sources. As such I thought we should be looking to reduce and eliminate our dependency on fossil fuels.

That's right, they clearly make sense, but Mrs Pingu said they don't make financial sense, which is also true.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 27 September, 2022, 08:57:47 pm
Yes, that is what I meant. :)
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 27 September, 2022, 09:12:06 pm
Ireland appears to be implementing a similar "paying your bills for you" type scheme to the UK.
Quote
Every household will get €600 in electricity credits in three payments
Lump sum of €400 for fuel allowance recipients before Christmas
Double week cost-of-living support payment for social welfare recipients
https://www.irishtimes.com/ireland/2022/09/27/budget-2023-main-points-vacant-homes-tax-introduced-excise-reductions-on-fuel-extended-tax-credits-for-renters/
Title: Re: Home energy saving tips /ideas...
Post by: road-runner on 27 September, 2022, 09:31:58 pm
Yes, that is what I meant. :)

Indeed, that is what you wrote! Don't let me upset the apple cart.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 27 September, 2022, 09:48:26 pm
No apples were harmed :)
Title: Re: Home energy saving tips /ideas...
Post by: ian on 27 September, 2022, 10:03:24 pm
I was inspired to build my own DIY nuclear reactor earlier though I'm currently confined by only having one americium-containing smoke alarm. I was excited when I remembered I had a 500-tablet tub of Pepto-bismol still mostly unused and all bismuth is radioactive (it's metastable and should decay to thallium-205 via alpha decay).

Unfortunately, it seems that while bismuth is radioactive, its half-life is a billion times the age of the universe.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 27 September, 2022, 11:17:42 pm
I remembered I had a 500-tablet tub of Pepto-bismol still mostly unused

You do realise that, in the face of a global Pepto Bismol shortage, you could be sitting on a resource that could pay your winter heating bill?
Title: Re: Home energy saving tips /ideas...
Post by: Lightning Phil on 28 September, 2022, 09:03:53 am
Serious thought here about how to improve our Victorian semi.

#2 - change our front sashes to slimline double glazed (12mm deep, argon/other gas filled). Units can be bought for about £1,300, not sure about the fitting cost. Uncertain benefit, but 6m2 of single pane glass does a lot to cool a room.

I suppose it depends on how big an energy bill you have for that to make financial sense.  My annual bill is far less than that amount and thus I’d never get back the money from such a spend.
Title: Re: Home energy saving tips /ideas...
Post by: TimC on 28 September, 2022, 09:04:46 am
Ham, I would be doing #2 first in terms of priority, although I guess it's then complicated by relative cost for 1 and 2 versus will the boiler break down forever as soon as you've sprung for new windows...
Unfortunately, the boiler circuit board went bang last year (for the third or fourth time - it is the Achilles heel of what is, otherwise, a simple, reliable boiler). While our original plan was to sweat it a bit more, my calculation is that changing boiler would put a minimum of £400 a year back for a £3k-ish outlay, so a no-brainer thanks to current energy costs


I've been working through the same things for my C17th cottage. I'm installing the 12mm DG panels myself; each panel (about 330mm sq) costs around £35. I only have four windows in the old part of the house and one of those is only two panes, so around £490 for all four.

I will also be installing secondary DG on these windows, but that's quite a lot more expensive. The doors are thick oak, and were installed about 30 years ago with quite decent weather and draught sealing. I'm not sure I can do much to improve them, but I'm working on it. My biggest heat loss is the vaulted ceiling in the kitchen, which originally was a Victorian workshop or forge. It has some thin rigid insulation and a layer of 'bubble wrap' under the tiles but I can probably get another 50-60mm Celotex between the (very irregular) joists. But it will be a very messy job!


Interesting, I'd be curious how you get on with them "as is" without the secondary glazing. Who did you use for the units?

Slim Glass of Norwich. https://www.slim-glass.co.uk/

They have had a fairly substantial effect on the level of noise from the nearby A road. I still have to optimise the draft proofing around the casement, but this morning the two bedrooms - both with windows facing the east side of the house, one with the DG units, one without - showed about a 1C difference in temperature in favour of the treated window. The untreated room was 14C, the treated one was 15C (as recorded by the room thermostat controllers), the outside temperature was 6C and no heating was on, or had been on in the previous 24 hours.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 28 September, 2022, 10:27:56 am
I remembered I had a 500-tablet tub of Pepto-bismol still mostly unused

You do realise that, in the face of a global Pepto Bismol shortage, you could be sitting on a resource that could pay your winter heating bill?

Hmm, it seems there is. The 500 tub is actually a Walmart Pepto knockoff called Soothe, but I also have a smaller tub of the real deal for special occasions.

I love the epic tubs they have in US pharmacies. I always think to myself, what if – after the fall of civilisation – I get a headache or indigestion? It's not like I'll be popping out over the blistered radioactive, plague-festering hellscape to Boots to buy a pack of sixteen tablets. On this basis, I never knowingly have fewer than 1,000 ibuprofen caplets to hand. The last thing I want at the end of the world is a headache.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 28 September, 2022, 10:40:52 am
My fuel direct debit is £69 per month. The £400 government credit for October to March works out about £67 per month. Octopus Energy have told me (via email) that between October and March my direct debit will be £2 per month. Yes, £2 per month.

Yes, I know my credit balance with them will eventually be eroded away due to what I use over
the coming months.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 28 September, 2022, 10:57:04 am
I remembered I had a 500-tablet tub of Pepto-bismol still mostly unused

You do realise that, in the face of a global Pepto Bismol shortage, you could be sitting on a resource that could pay your winter heating bill?

Hmm, it seems there is. The 500 tub is actually a Walmart Pepto knockoff called Soothe, but I also have a smaller tub of the real deal for special occasions.

I love the epic tubs they have in US pharmacies. I always think to myself, what if – after the fall of civilisation – I get a headache or indigestion? It's not like I'll be popping out over the blistered radioactive, plague-festering hellscape to Boots to buy a pack of sixteen tablets. On this basis, I never knowingly have fewer than 1,000 ibuprofen caplets to hand. The last thing I want at the end of the world is a headache.
That could backfire on you, ian.

Scene: The End of the World
Location: The Pearly Gates
Characters: St Peter, Jesus, Nicholas Devil, ian, 9 billion humans

St Peter: Lo! What is this huge number of people queuing at my gates today? Do they not know it is Wednesday, my official half day? My sorting clerks cannot possibly sort them into the Saved and the Damned today.
Jesus: Do keep up, Pete, it's the End of the Word, innit? Rejoice! For the hour of salvation is at hand! All that stuff. You can retire on a nice fat heavenly pension once this lot's sorted out.
St Peter: Okay, well it's an easy one anyway. I can see at a glance by the way they clutch their heads and stomachs that they all have stinking hangovers. Sinners the lot of them. To Hell with them! Oi, Nick, old bean! This lot are all yours!
Nicholas Devil: Hey hey! More souls to feed my eternal fires! This way, my chickabidees! Don't stand around freezing your arses off, come and get warm with my imps.
Jesus: Steady on, Pete. What about this chap here? The small one with the exceptionally neat coiffure. See how he smiles joyfully and looks around, bright eyed and bushy tailed? Clearly he is the one true saved soul among this filth.
ian: Oh what fun! Soon I'll be sporting with Desdemona and Barbarella and all the firey imps!
St Peter (to ian): Come here! What was your name on Earth?
ian: ian.
St Peter: And what was your profession, occupation or other activity?
ian: I was a tidy-haired thought leader.
St Peter: Wozzat then? Like chief barber or something?
Jesus: It's one of those new jobs they have now. Not actually anything to do with hair at all. They always give them silly names.
ian: ian's not a silly name.
Jesus: It is spelled like that.
ian: Fair cop.
St Peter: Now, ian, I have great news for you. Just walk through this little door and... you're in! Welcome to Heaven! The eternal paradise, green pastures where the lamb may lie down with the lion.
ian: Heaven? You mean I'm not going to Hell? That sucks! I'd promised my soul to the Devil and all. Mind you, I only got 40 quid for it, so I suppose... Anyway, where's the pub?
St Peter: The pub?
ian: Yes, you said the Lamb and Lion.
St Peter: Oh no, that's not a pub. You see the other sections are full, so we've put you in with the Jehovah's Witnesses.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 28 September, 2022, 12:26:34 pm
I'm pretty sure that regardless of my appearance, I'm on Hell's guest list. I created their Powerpoint deck 'So Now You're Damned' to help with onboarding. What to expect in your first 30 days of eternal torment etc.
Title: Re: Home energy saving tips /ideas...
Post by: Jasmine on 28 September, 2022, 04:13:49 pm
My fuel direct debit is £69 per month. The £400 government credit for October to March works out about £67 per month. Octopus Energy have told me (via email) that between October and March my direct debit will be £2 per month. Yes, £2 per month.

Yes, I know my credit balance with them will eventually be eroded away due to what I use over
the coming months.


My supplier has put me on a payment holiday as my expected monthly bill is lower than the gov credit. On the other hand, I don't have mains gas, so could quite do with the cash given that Calor have just hoiked up the price of tinned gas.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 28 September, 2022, 08:53:47 pm
Serious thought here about how to improve our Victorian semi.

#2 - change our front sashes to slimline double glazed (12mm deep, argon/other gas filled). Units can be bought for about £1,300, not sure about the fitting cost. Uncertain benefit, but 6m2 of single pane glass does a lot to cool a room.

I suppose it depends on how big an energy bill you have for that to make financial sense.  My annual bill is far less than that amount and thus I’d never get back the money from such a spend.

Well, given the lack of data it's impossible (at least for me to calculate the financial benefit, instead that would be justified on the grounds of comfort. As matters stand, our front room remains cool while the rest of the house is baking, and has defeated all our attempts to balance.


Slim Glass of Norwich. https://www.slim-glass.co.uk/


They look interesting, they seem to address one of my questions head on (which others have avoided), that is, are there any size limitations for slim double glazing without supports? (ours, at about 1m2 are a single pane) It seems, they recommend much smaller sizes, I will have to talk to them and find out why.
Title: Re: Home energy saving tips /ideas...
Post by: The Family Cyclist on 28 September, 2022, 09:03:26 pm
My fuel direct debit is £69 per month. The £400 government credit for October to March works out about £67 per month. Octopus Energy have told me (via email) that between October and March my direct debit will be £2 per month. Yes, £2 per month.

Yes, I know my credit balance with them will eventually be eroded away due to what I use over
the coming months.


My supplier has put me on a payment holiday as my expected monthly bill is lower than the gov credit. On the other hand, I don't have mains gas, so could quite do with the cash given that Calor have just hoiked up the price of tinned gas.

Are flo gas an option. When i worked selling calor flo gas were much cheaper and iirc if you and your neighbours ordered together they'd reduce price per bottle
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 02 October, 2022, 12:04:20 pm
Just had a look at meter readings etc for the month of Sept 2022, & we've used 50% of Elect (110kw/h) & 30% of gas (150kw/h) compared to Sept 2021, but paid more or less the same due to tariff increases of course.... ~£65/£60.   Remains to be seen how well we do with gas consumption over winter... 

For electric, perhaps one of the main reductions is our oven usage / change of habits, but miniao being here less has been part of this. Doing more cooking on gas hob, but also firing up the oven/grill just to do baguettes/cheese on toast, or brown off a dish has more or less gone. 

PS.  Re. cheese on toast - quick decent toasting of the bread - cheese on & mw for few secs works pretty well.   ;)
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 02 October, 2022, 12:21:39 pm
PS.  Re. cheese on toast - quick decent toasting of the bread - cheese on & mw for few secs works pretty well.   ;)

With cheese at around £10/kg and the price of bread soaring, I would hazard that a couple of minutes under the grill is a tiny proportion of the cost of cheese on toast.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 02 October, 2022, 12:29:29 pm
PS.  Re. cheese on toast - quick decent toasting of the bread - cheese on & mw for few secs works pretty well.   ;)

With cheese at around £10/kg and the price of bread soaring, I would hazard that a couple of minutes under the grill is a tiny proportion of the cost of cheese on toast.

I'd also ask: Just how long are you leaving it under the grill? Cheese on toast is one of those dishes that takes about 5mins to make. Even if your grill were 3kw. That's (1/12)*(3*0.34), that's 8.5p. If you did that every day of the year, it would still only be 31 quid. just over 2.5 quid a month.

This comes back to something I've been saying since near the beginning of this thread. Unless it's heating water, or heating space, most of our energy savings are insignificant and only make our quality of life less. Not having cheese on toast once a week to save less than 10p. Unless you're right down in the lower ends of the income scales, is't probably not worth the worry.

And even when it comes to heating water, or heating our rooms, even a 1°C temp drop can drastically effect our quality of life.

J
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 02 October, 2022, 02:35:29 pm
Well done with the Ch-on-T analysis.   ;D  Just an example really.  We seem to have cut out most of our oven use anyway, which is the main E use variability (I think). Miniao, is quite a heavy oven user when she's around - currently not & will soon no doubt be basking in lovely warm central heating in uni residence accomodation with all inclusive bills.

ETA.  I'm the sort of person, who flicks the kettle off as soon as it boils - to save a few seconds overboil before auto cut off.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 02 October, 2022, 02:42:11 pm
Oven use seems to be the greatest source of day-to-day fluctuation in our electricity consumption, but it's still on par with the fridge or desktop computers.

(Our consumption is dominated by always-on electronics: server/router/switches/APs/fire alarm/alerters/sensors.  The biggest win would be to reduce the power consumption of the server, which will be on the agenda for the next upgrade.  Swapping two 24-port switches for a 48-port switch would help, but is impractical in a rented house.)
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 02 October, 2022, 02:57:02 pm
Heating water is a serious use of power.

Whether it is a shower, washing clothes, bath or washing up; we use a lot of hot water.

Turning off the immersion heater and using a kettle really brought this home to me. Three very full kettles of water to get enough to wash up. Yes, we have a largish sink.
That is a real pain to do, so we only wash dishes up at most once a day.

Heating is coming on once a day now, so there is a tank of hot water. Even so, I'm restricting the amount of washing up I do.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 02 October, 2022, 03:04:16 pm
Yes, other than the number of minutes the boiler was asked to provide central heating (which doesn't account for modulation, or it being preoccupied with producing hot water), I don't have any decent consumption figures for gas, because Octopus.

I do know that using the Pissy Landlord Electric Shower™ while the boiler was broken last week added another 30% or so to our daily electricity consumption.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 02 October, 2022, 03:06:37 pm
Heating water is a serious use of power.

Whether it is a shower, washing clothes, bath or washing up; we use a lot of hot water.

Turning off the immersion heater and using a kettle really brought this home to me. Three very full kettles of water to get enough to wash up. Yes, we have a largish sink.
That is a real pain to do, so we only wash dishes up at most once a day.

Heating is coming on once a day now, so there is a tank of hot water. Even so, I'm restricting the amount of washing up I do.

A washing up bowl is a good investment. Smaller amount of water, less energy to heat it. Plus the water doesn't lose as much heat as directly in the sink.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 02 October, 2022, 03:17:15 pm
Heating water is a serious use of power.

Whether it is a shower, washing clothes, bath or washing up; we use a lot of hot water.

Turning off the immersion heater and using a kettle really brought this home to me. Three very full kettles of water to get enough to wash up. Yes, we have a largish sink.
That is a real pain to do, so we only wash dishes up at most once a day.

Heating is coming on once a day now, so there is a tank of hot water. Even so, I'm restricting the amount of washing up I do.

Sooo.

To take 1l of water from 20°C to 100°c takes 0.091kwh. Which at 34p/kwh is 3p. So if you boil the full contents of your 10l washing up bowl, thats 30p. Except you're not getting your washing up liquid to 100°C. Nor are you getting the water tank upto 100°C. More commonly it's upto about 70°C. Enough to not get legionella. 20°C to 70°C is 0.06kwh. Or 2p per litre. Now if you use a whole 100l tank of water every day, then it's gonna be 2 quid a day. That's gonna add up over a year. But, we don't shower at 70°C. We shower at closer to 38°C (taken as the default setting on many showers...) Heating 1l from 20°C to 38°C is 0.02kwh. Or 0.68p. So rather than looking at the cost of the whole tank, let's look at it as 9l of water per minute (typical shower usage), at 38°C. Then we're at 6p per minute. A five minute shower costs you 31p.

The efficiency of using the kettle to do the washing up comes from the fact you are only heating the water you need, not the full tank. You could maybe get quite a good saving tho by improving your water tank's insulation, and using the element that is half way up the cylinder to just top up the water at the top that you need.

All these numbers assume 100% efficiency for water heating. And the numbers are using the single tariff rate. If you can heat the water at night using the cheaper rate, then it can be quite a bit cheaper. But if you have to top it up during the day, then it will be even more expensive.

J
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 03 October, 2022, 09:24:02 am
Thing is, when we were using the immersion, we used the hot water at the sink thoughtlessly. Have a dirty pan? Fill it with hot water and wash straight away.

The hot water used isn't just what went into the pan, it's the pipes from the cylinder down to the kitchen. That's about 2.5 more litres. It adds up.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 03 October, 2022, 09:47:01 am
This is all a reminder that God, in her munificence, gave us dishwashers. This reminds me ours needs replacing as it's developed a teenager mode. I didn't hear you telling me to wash up.

Did someone say microwaved cheese, or was that just a bad dream? I think it must have been because that would make absolutely no sense, and if it isn't a criminal offence it should be. Cheese must be grilled to a nice brown shade, the fat oozing into the bread.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 03 October, 2022, 09:59:30 am
Dishwashers might be energy efficient but they are extremely inefficient of space. They also take a long time, requiring a second set of everything that you can use while the first is being washed. And they are noisy too.
Title: Re: Home energy saving tips /ideas...
Post by: tonyh on 03 October, 2022, 10:06:21 am
How about two dishwashers, one for waiting-to-be-washed, one clean stuff. Few cupboards needed.
Title: Re: Home energy saving tips /ideas...
Post by: Canardly on 03 October, 2022, 10:06:46 am
Our DW has a 29 minute quick wash which has now become the standard mode of operation. You have not highlighted the obvious benefit of having somewhere to hide the dirty pots.  :-)
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 03 October, 2022, 10:06:58 am
Dishwashers might be energy efficient but they are extremely inefficient of space. They also take a long time, requiring a second set of everything that you can use while the first is being washed. And they are noisy too.

We always dishwash on the 45C / 30-40min cycle.  May require some soaking sometimes...
Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 03 October, 2022, 10:27:33 am
I'd never used a dishwasher until we moved to this flat last year - when we had the kitchen refitted, I was all ready to get the dishwasher ripped out and have extra storage space instead. But I was quickly converted to the ways of dishwasher, and so it remained.

I have a very very bad habit of leaving the tap running when I wash up, :-[ so the dishwasher is undoubtedly more efficient anyway...
Title: Re: Home energy saving tips /ideas...
Post by: ian on 03 October, 2022, 10:40:44 am
I find letting pots soak in a bowl of foetid water offputting. If I wash anything in the sink, it's under running water.

We mostly wash on a 30ish minute cycle, it's not noisy, it just sloshes like a happy robot in a paddling pool (get out of there, you'll rust!)

Quite often stuff comes straight out of the dishwasher and back into use, since I mostly cook with the same implements and I'm too lazy to put everything back in the cupboards only to take it out again thirty minutes later.
Title: Re: Home energy saving tips /ideas...
Post by: lissotriton on 03 October, 2022, 10:53:16 am
The quickest dishwasher cycle may not be the most efficient. Check the specs.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 03 October, 2022, 10:55:46 am
How about two dishwashers, one for waiting-to-be-washed, one clean stuff. Few cupboards needed.
Needs four: one for waiting, one for washing, one for clean, one for best.
Title: Re: Home energy saving tips /ideas...
Post by: grams on 03 October, 2022, 11:15:02 am
The two dishwasher plan fails because when it's time to run the second (dirty) one you might not have used all of the stuff from the first (clean) one, and then you end up with two clean dishwashers and nowhere to put dirty stuff.

 The only solution is to have as many dishwashers as you have items.
Title: Re: Home energy saving tips /ideas...
Post by: Jaded on 03 October, 2022, 11:25:44 am
How about two dishwashers, one for waiting-to-be-washed, one clean stuff. Few cupboards needed.
Needs four: one for waiting, one for washing, one for clean, one for best.

Surely moving the stuff between them takes loads of time and effort.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 03 October, 2022, 11:27:41 am
How about two dishwashers, one for waiting-to-be-washed, one clean stuff. Few cupboards needed.
Needs four: one for waiting, one for washing, one for clean, one for best.

Surely moving the stuff between them takes loads of time and effort.
Good point: need a robot.

But then the robot can do the washing up.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 03 October, 2022, 11:32:16 am
How about two dishwashers, one for waiting-to-be-washed, one clean stuff. Few cupboards needed.
Needs four: one for waiting, one for washing, one for clean, one for best.

Surely moving the stuff between them takes loads of time and effort.
Good point: need a robot.

But then the robot can do the washing up.

Monkey butlers FTW!
Title: Re: Home energy saving tips /ideas...
Post by: ian on 03 October, 2022, 11:33:54 am
The old joke in Chinese kitchens is that the oven is where the second wok is stored (the first wok never leaving the stove top). I don't remember seeing a dishwasher in a Chinese kitchen (admittedly HK, where the average kitchen was the size of a cupboard) but I feel sure it would be used for pot storage.
Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 03 October, 2022, 11:41:44 am
A flat we rented a few years back had a full-size dishwasher in a tiny kitchen with hardly any storage space. ??? As I was an unenlightened anti-dishwasher type at the time, it was used purely as a storage cupboard.
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 03 October, 2022, 11:44:57 am
The quickest dishwasher cycle may not be the most efficient. Check the specs.

Unfortunately, our Bosch d/w manual has no power consumption values or cycle times.  I manually timed the Eco50 on our machine at 3h15mins! 
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 03 October, 2022, 11:46:22 am
The quickest dishwasher cycle may not be the most efficient. Check the specs.

Unfortunately, our Bosch d/w manual has no power consumption values or cycle times.  I manually timed the Eco50 on our machine at 3h15mins!

This is what plug-in power meters (and fitting the sockets for whitegoods in an easily-accessed adjacent cupboard) are for.
Title: Re: Home energy saving tips /ideas...
Post by: Tod28 on 03 October, 2022, 11:49:38 am
That's the cycle you want for minimum water & power consumption. Ours gets put on every 3-4 days (depending on plate supply) last thing at night. Tea and coffee cups go in then as well. If grubby in between they get a quick rinse with the hot water in the kettle.

Quote from Bosch Manual

"The standard programme (eco 50) is the standard cleaning cycle to which the information in the label
and the fiche relates, that this programme is suitable to clean normally soiled tableware, and that it is
the most efficient programme in terms of combined energy and water consumption"

0.92 kWh and 6 l water per cycle. The annual consumption for the energy labels is based on 280 cycles per year or 5.5 times a week!!
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 03 October, 2022, 12:11:54 pm
The quickest dishwasher cycle may not be the most efficient. Check the specs.

Unfortunately, our Bosch d/w manual has no power consumption values or cycle times.  I manually timed the Eco50 on our machine at 3h15mins!

This is what plug-in power meters (and fitting the sockets for whitegoods in an easily-accessed adjacent cupboard) are for.

I'm on it with the Tapo 110.   :thumbsup:   Rang Bosch they have no power info for the diferent cycles (on our machine) 'any longer' - though they said the 3h15m program would actually use less power, than the "Quick 45".  Going to try and see what the plug comes up with. 
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 03 October, 2022, 12:12:22 pm
I would not want manky plates and pans sitting around for 3 days, nor do I have enough pans to be able do that. From the dishwashers I've used in holiday homes they seem to take hours and I've always failed to see how they can use less energy to take hours to wash some stuff I could wash in a a bowl in 10 mins. The only time I leave the tap running is when I'm rinsing glasses.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 03 October, 2022, 12:24:02 pm
I would not want manky plates and pans sitting around for 3 days, nor do I have enough pans to be able do that.
Definitely this!

Quote
From the dishwashers I've used in holiday homes they seem to take hours and I've always failed to see how they can use less energy to take hours to wash some stuff I could wash in a a bowl in 10 mins. The only time I leave the tap running is when I'm rinsing glasses.
Probably this too.
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 03 October, 2022, 12:36:37 pm
...

This is what plug-in power meters (and fitting the sockets for whitegoods in an easily-accessed adjacent cupboard) are for.

Or not so easy...  Tapo plug doesn't fit.  It may be possible to swivel the filter(?) out the way, but hey ho...

(https://live.staticflickr.com/65535/52401838765_dfbe80dc5f_w.jpg) (https://flic.kr/p/2nQz81H)PXL_dw1 (https://flic.kr/p/2nQz81H) by a oxon (https://www.flickr.com/photos/145942400@N06/), on Flickr
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 03 October, 2022, 12:42:05 pm
Ah, the old "let's make the dishwasher more space-efficient by externalising the bulk of the solenoid valve" trick.  One of Stan's finest works, that one.   >:(

For our washing machine, I've used an extension lead in the socket on the wall behind to bring the power round to the large otherwise useless gap by the side where the waste pipe is.  Tasmota smart plug (monitoring power use, counting the number of cycles run and sending a message over MQTT to make things go 'DING!' when the cycle ends) between the extension lead and the washing machine's power cable, where it can be easily reached and isolated if needed.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 03 October, 2022, 01:06:17 pm
Our dishwasher rarely needs more than the 29-minute cycle – we give it the 1-hour cycle every week or two or when it has a lot of stuff in it. No idea how much energy it uses, but I mostly don't care, it's pence. It only heats the water it needs and seems quite frugal in vigorously splashing around what water it uses. Plus I'm lazy and have zero wish to wash dishes by hand, since I spent my formative years always washing the pots, My parents firmly viewed children primarily as labour-saving accessories.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 03 October, 2022, 08:27:54 pm

My kitchen is tiny (I have to walk through it sideways), so making space for a dishwasher is proving complicated.

I am seriously considering getting one of these:

https://daan.tech/eur/discover-bob-mini-dishwasher/

99% of the time I'm cooking for one. So a small dishwasher would make perfect sense. No need for the plates sitting for 3 days until it's full. No running it at half capacity etc...

J
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 03 October, 2022, 08:40:29 pm
That's cute.

I installed a counter-top dishwasher (compete with the afore-mentioned externalised solenoid valve, which necessitated cutting a large hole in the surface) for a disabled friend who lives alone some years ago, and it was revolutionary.  It's a sensible size for 1-2 people's worth of washing-up, but they're a lot more expensive than full-sized ones.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 03 October, 2022, 09:23:08 pm
The quickest dishwasher cycle may not be the most efficient. Check the specs.

Unfortunately, our Bosch d/w manual has no power consumption values or cycle times.  I manually timed the Eco50 on our machine at 3h15mins!

This is what plug-in power meters (and fitting the sockets for whitegoods in an easily-accessed adjacent cupboard) are for.

Funny you should mention that. I have just (!!) managed to open a conversation with Mrs Ham about energy consumption on The Holy Washing Machine (a VERY dangerous topic). Apparently she saw something about the energy consumption on facebook, which permitted exploration. Historically, the very concept that a longer cycle might be more efficient in terms of power was consigned the lunatic fringe. I had also moved the power socket from behind the machine relatively recently, so I could plug in my power meter.

Interesting results, but short version, the 40 degree cycle at 3 hours took 1/3 energy of the 1.25 hour.
Title: Re: Home energy saving tips /ideas...
Post by: giropaul on 03 October, 2022, 09:30:29 pm
I grew up with no dishwasher, no tumble drier. In my 70s I’ve still never had either. We don’t find old fashioned washing up a chore, 5 minutes at the most. Washing goes outside on the line or in the airing cupboard.
Watching the smart meter ( when it worked) illustrated that heating water is probably the most electron greedy thing that normally happens in a house ( unless you have electric heating)
Am I missing something?
Title: Re: Home energy saving tips /ideas...
Post by: ian on 03 October, 2022, 09:34:54 pm
Look, I have PTSD from my parents using me as a labour-saving device as a child. Just talking about it could be a trigger.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 03 October, 2022, 09:54:42 pm
We don’t find old fashioned washing up a chore, 5 minutes at the most.

5 minutes of washing up is fine.  More than a draining-board-full rapidly becomes a chore, because then you have to waste time drying things to make room for the rest.  And by that point your lower back is aching because whoever installed the cupboard under the sink didn't account for knee space for people with unequal leg lengths.  Like tumble-driers, dishwashers make a lot more sense for bigger households.

Since there's just two of us, I see little need for a dishwasher, at least while I'm able-handed and around to do most of it.  If barakta were on her own more often it would be a no-brainer (there being countless more fulfilling ways she can over-use her arms).
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 03 October, 2022, 09:56:52 pm

5 minutes of washing up is fine.  More than a draining-board full rapidly becomes a chore, because then you have to waste time drying things to make room for the rest.  And by that point your lower back is aching because whoever installed the cupboard under the sink didn't account for knee space for people with unequal leg lengths.  Dishwashers make a lot more sense for bigger households.

Since there's just two of us, I see little need for a dishwasher, at least while I'm able-handed and around to do most of it.  If barakta were on her own more often it would be a no-brainer (there being countless more fulfilling ways she can over-use her arms).

Dishwasher uses less water. Meaning less power to heat it. Various studies have shown a dishwasher is more efficient than hand washing.

J
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 03 October, 2022, 10:03:54 pm
Dishwasher uses less water. Meaning less power to heat it. Various studies have shown a dishwasher is more efficient than hand washing.

Does that include the embedded cost of making the dishwasher?


(It's academic for us - there's nowhere to put one, unless we got rid of the microwave and replaced it with a counter-top unit, which would be a serious own-goal in terms of energy use.)
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 03 October, 2022, 10:04:31 pm
I grew up with no dishwasher, no tumble drier. In my 70s I’ve still never had either. We don’t find old fashioned washing up a chore, 5 minutes at the most. Washing goes outside on the line or in the airing cupboard.
Watching the smart meter ( when it worked) illustrated that heating water is probably the most electron greedy thing that normally happens in a house ( unless you have electric heating)
Am I missing something?
The energy needed to run a dishwasher cycle could only heat a small quantity of water. Around 13 litres for a newish machine, maybe 20 for an older one, heated to 60 °C.
Quite sensibly, domestic dishwashers are designed to use little water and energy, and are prepared to spend hours swirling the same water around to save energy, just as Ham has seen with washing machines.
https://inthewash.co.uk/dishwashers/most-economical-dishwashers-in-the-uk/
https://www.bbc.co.uk/sounds/play/p09vyy6h (https://www.bbc.co.uk/sounds/play/p09vyy6h) from 19:30 onwards applies.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 03 October, 2022, 11:12:45 pm
The equation applies to washing clothes.

Seriously, washing clothes by hand uses a *lot* of water compared to using a machine. Living on a boat when getting more water is a two hour chore motoring down the river and back concentrates the mind somewhat.

I did have a table top manual thingy - it worked on the principle of a sealed container that tumbled the clothes as you cranked it. Being sealed, adding hot water pressurised it and improved the washing effect. Still used a lot more water than a machine (which I didn't have onboard, for years we did laundry by taking bags into a commercial laundrette).
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 04 October, 2022, 10:09:36 am
I know some people who live on a canal boat. They've been on it for 30 years now. They have a filter, four layers of charcoal, which can take a bucketful of canal water and turn it into something drinkable. It takes about one hour to filter one litre and has a capacity of 12 litres, which doesn't sound much, but they say it's enough for drinking water for two.

So on that principle, it should be possible to install a higher capacity but lower quality filter to was clothes in canal water?
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 04 October, 2022, 10:11:05 am
I grew up with no dishwasher, no tumble drier. In my 70s I’ve still never had either. We don’t find old fashioned washing up a chore, 5 minutes at the most. Washing goes outside on the line or in the airing cupboard.
Watching the smart meter ( when it worked) illustrated that heating water is probably the most electron greedy thing that normally happens in a house ( unless you have electric heating)
Am I missing something?
What you're missing is that you have an airing cupboard! Line drying, in suitable weather, is the best way though.
Title: Re: Home energy saving tips /ideas...
Post by: Paul H on 04 October, 2022, 11:11:42 am
If I had a larger kitchen, I'd have a dishwasher, though it wouldn't be top of the list to occupy additional counter space.  I use the kettle for kitchen hot water, around 2.5 min @3kw, so 5p for the full 1.7ltr.  I tend to batch cook, so a cooking day will take 3 kettles, a non cooking day 1, though I might skip a day or two midweek.
I can see how a large family washing up three times a day might save a few quid, for me it'd take decades to pay for itself, if ever.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 04 October, 2022, 11:56:16 am
I know some people who live on a canal boat. They've been on it for 30 years now. They have a filter, four layers of charcoal, which can take a bucketful of canal water and turn it into something drinkable. It takes about one hour to filter one litre and has a capacity of 12 litres, which doesn't sound much, but they say it's enough for drinking water for two.

So on that principle, it should be possible to install a higher capacity but lower quality filter to was clothes in canal water?
I'm amazed that they'd drink canal water, even filtered.

There tends to be a fair bit of fuel and oil pollution in canal water.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 04 October, 2022, 12:05:58 pm
I know some people who live on a canal boat. They've been on it for 30 years now. They have a filter, four layers of charcoal, which can take a bucketful of canal water and turn it into something drinkable. It takes about one hour to filter one litre and has a capacity of 12 litres, which doesn't sound much, but they say it's enough for drinking water for two.

So on that principle, it should be possible to install a higher capacity but lower quality filter to was clothes in canal water?
I'm amazed that they'd drink canal water, even filtered.

There tends to be a fair bit of fuel and oil pollution in canal water.
True. They don't use it for all their drinking water, only really when they can't get to a mains tap. The filters, judging by their slowness, must be far finer than those commonly used by hikers (Sawyer, Katadyn) but then the water must be dirtier to begin with. Filters sold for tap water in the home claim to remove heavy metals so maybe it's possible, with suitably fine filters, to filter out other liquids?
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 04 October, 2022, 12:20:04 pm

I'm amazed that they'd drink canal water, even filtered.

There tends to be a fair bit of fuel and oil pollution in canal water.

This.

There is very little lowland water I would feel comfortable filtering with anything less than industrial spec filtering equipment the scale of which only a water company could own.

J
Title: Re: Home energy saving tips /ideas...
Post by: neilrj on 04 October, 2022, 03:24:47 pm
Ah, the old "let's make the dishwasher more space-efficient by externalising the bulk of the solenoid valve" trick.  One of Stan's finest works, that one.   >:(


To be fair that is protecting the flexible pipes,if the safety valve was in the machine a split hose would gush until it was noticed.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 04 October, 2022, 03:34:54 pm
Ah, the old "let's make the dishwasher more space-efficient by externalising the bulk of the solenoid valve" trick.  One of Stan's finest works, that one.   >:(


To be fair that is protecting the flexible pipes,if the safety valve was in the machine a split hose would gush until it was noticed.

You could do that in a way that was disconnectable, though, so you wouldn't need to cut a massive hole in your worktop/cupboard.  Are split hoses a common problem?  I can imagine it being damaged during installation, but they seem unlikely to fail spontaneously.  A lot of extra faff for a marginal benefit.  Also, if the manufacturer doesn't supply the hose, it's not their problem anyway.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 04 October, 2022, 04:17:55 pm
There's a feature on the BBC News webshite about cheap DIY external temperature sensors to reduce the flow temperature of condensing boilers when you don't need maximum power from your rads (which makes the boiler more efficient).

This is a bugbear of mine.  Condensing boiler efficiency is quoted for a low flow temperature of about 63 deg C but, if you have a hot water cylinder, 63 deg is not enough of a temp difference to heat it up within the average human lifespan.  So most installers set 80 deg C or more and everyone's happy, except for 10% more on bills.  Your 85% A-rated boiler is probably running at 77% efficiency or less.

I tried flipping a Potterton 15HE from the 82 to 63 settings by moving the appropriate jumper on the PCB and, after a day of tepid showers and washing-up, changed it straight back.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 04 October, 2022, 06:31:13 pm
On my boiler there are 2 knobs so that you can adjust the rad and the HW temperature independently of each other. (They just don't work on mine since I've had an OpenTherm controller installed).
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 04 October, 2022, 06:42:08 pm
The issue in my mind is the control of hot water temperature, which is frankly crap. The cylinder is heated up by a coil running at flow temp, with a single thermostat controlling the valve at the top of the cylinder. On your controller, all you can do is state what time you want the boiler to heat up the tank. I have in my head the idea to use about 3 sensors along the vertical of the tank as a PID deploying an arudino or some such.

Then, you could have some control over how much water you heat up, and keep it at a better constant temperature. That might make a lower temperature flow more effective (or it might not)
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 04 October, 2022, 07:18:46 pm
There should be a temp sensor on your tank - that will trigger the 'call for hot water'.

Having a separate temp setting for the hot water coil and the central heating would be quite a good idea. I don't think that is an option for any current boiler systems though.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 04 October, 2022, 08:14:30 pm
There should be a temp sensor on your tank - that will trigger the 'call for hot water'.

Having a separate temp setting for the hot water coil and the central heating would be quite a good idea. I don't think that is an option for any current boiler systems though.
Apart from the Pingus', it seems!
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 04 October, 2022, 08:34:48 pm
Ours is a combi, not heating a tank, in case that makes a difference.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 04 October, 2022, 09:41:44 pm
Yeah, fairly standard for combis to have separate knobs for hot water and CH flow temperature, isn't it?
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 04 October, 2022, 09:52:17 pm
Ah right - harder to implement for stored hot water, as you'd need a separate primary circuit from the boiler.  They're normally just tapped off the CH run.
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 05 October, 2022, 09:30:33 am
Ah right - harder to implement for stored hot water, as you'd need a separate primary circuit from the boiler.  They're normally just tapped off the CH run.
All modern systems have a valve to turn on and off the primary feed to the hot water. It would be quite easy to increase the boiler temperature when the hot water is being heated. In most houses the hot water is a small fraction of the annual heating requirement.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 05 October, 2022, 10:42:08 am
There should be a temp sensor on your tank - that will trigger the 'call for hot water'.

Having a separate temp setting for the hot water coil and the central heating would be quite a good idea. I don't think that is an option for any current boiler systems though.

The problem I perceive is that the temperature control based on the existing method is coarse and bears no relationship to demand. There is a possibility that maintaining a tank of water at a constant temperature is more efficient than see-sawing hot and cold, whilst energy into water heating is a linear calculation that will depend on the dynamics of the conversion from boiler flow into the tank, efficiencies at the boiler, loss on the run to the cylinder, loss at the cylinder etc. At the simplistic end, you can calculate than a 180 liter tank would take about 9kwh of energy to heat from 15 to 60c, with boiler efficiency at 90% (suspect) without allowing for losses, that's 10Kwh or almost a fiver. Not insignificant. Knowing how much hot water you need and roughly when could allow you to set up a program that would improve efficiency.

Of course, the simplest, easiest, quickest way is simply to improve insulation around the cylinder, thereby mitigating heat loss.

Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 05 October, 2022, 12:50:45 pm
Maintaining it at a constant temperature is much more expensive because (a) heat losses through the tank lagging are larger and (b) the boiler is more efficient (condenses better) when the water returning from the coil has lost most of its heat due to passing through a cold tank.

Also, £5 for 10kWh?  More like £1.  I pay 9.98p per kWh for gas.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 05 October, 2022, 01:38:22 pm

Also, £5 for 10kWh?  More like £1.  I pay 9.98p per kWh for gas.

Doh! I was thinking of leccy
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 05 October, 2022, 04:11:03 pm
Ah right - harder to implement for stored hot water, as you'd need a separate primary circuit from the boiler.  They're normally just tapped off the CH run.
All modern systems have a valve to turn on and off the primary feed to the hot water. It would be quite easy to increase the boiler temperature when the hot water is being heated. In most houses the hot water is a small fraction of the annual heating requirement.

It would be easy. A smart system would start supplying the hot water cylinder with water about 60C, then ramp up the temperature. Keep the boiler running as long as possible in the efficient range.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 05 October, 2022, 07:57:42 pm
The optimum balance between shorter heating time (with a higher temp) and higher boiler efficiency is a tricky one.  It probably needs calculus.  I imagine heating a cylinder with a very low delta t is grossly inefficient.  The boiler may condense nicely, but will cycle horribly.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 05 October, 2022, 10:49:30 pm

One of the problems with a typical hot water tank is that if you have a 100l tank. And turn on the tap in the kitchen to put 10l of it in the sink. You then add 10l of cold into the bottom. if you don't add any more heat, that 10l of cold water will disproportionately cool the tank, compared to if you just left the hot tank alone. It's almost as if rather than a 100l tank, you want two 50l tanks. And you drain one. Then refil it and heat it again when the energy is cheap. Then while that's out. Swap to the other. Except of course a smaller tank has a smaller surface area to volume ratio so you then need much better insulation.

J
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 05 October, 2022, 11:26:16 pm
Probably an argument for storing the heat in something other than water (preferably something that isn't prone to leaking, boiling or growing legionella), and regulating the flow through it to control output temperature.  Ideally, you'd do a really good job of insulation and heat it to much higher temperatures to store more energy, but that precludes using a gas boiler as the heat source.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 05 October, 2022, 11:27:16 pm
Probably an argument for storing the heat in something other than water (preferably something that isn't prone to leaking, boiling or growing legionella), and regulating the flow through it to control output temperature.  Ideally, you'd do a really good job of insulation and heat it to much higher temperatures to store more energy, but that precludes using a gas boiler as the heat source.

Phase change heat battery? Can they be paused once the phase change begins ?

J
Title: Re: Home energy saving tips /ideas...
Post by: Tigerbiten on 05 October, 2022, 11:51:59 pm
Probably an argument for storing the heat in something other than water (preferably something that isn't prone to leaking, boiling or growing legionella), and regulating the flow through it to control output temperature.  Ideally, you'd do a really good job of insulation and heat it to much higher temperatures to store more energy, but that precludes using a gas boiler as the heat source.
Sand.
But it only really works efficiently for district heating.
https://www.youtube.com/watch?v=sol9FOaKTr0&t=612s&ab_channel=JustHaveaThink

Luck .......
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 05 October, 2022, 11:56:07 pm


https://sunflowltd.co.uk/sunamp/

Phase change heat battery

J
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 06 October, 2022, 07:05:09 am
Two things to point out in QG's analysis:

1. A typical indirect (which is what we're talking about) hot water cylinder is more like 150-200 litres.  Direct cylinders are indeed smaller, presumably because they have to withstand upwards of 100psi.  A direct cylinder is not something I'd want in my house.

2. Water is a really poor conductor of heat, and cold water is denser than hot water, so the cold water coming in at the bottom doesn't really affect things.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 06 October, 2022, 10:22:22 am
Two things to point out in QG's analysis:

1. A typical indirect (which is what we're talking about) hot water cylinder is more like 150-200 litres.  Direct cylinders are indeed smaller, presumably because they have to withstand upwards of 100psi.  A direct cylinder is not something I'd want in my house.

2. Water is a really poor conductor of heat, and cold water is denser than hot water, so the cold water coming in at the bottom doesn't really affect things.

Water conducts heat 25 times better than air. So it's not exactly the worst conductor out there.

Also the cylinder is typically copper or brass, or some other metal. Which is an even better conductor.

J
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 06 October, 2022, 10:58:38 am
Well yes, but I don't often have an air bath or shower.  Anyway, cylinders work well enough.  I get sufficient hot water for 24 hours with one hour's water heating in the morning, and the hot water is still above hand-hot at bedtime, suggesting it's not far off 60 deg C.

We'll all need cylinders in future if heat pumps become the preferred form of heating.   Or over-sink "geysers" and electric showers, but they are crap and expensive to run, being resistance heaters.

Title: Re: Home energy saving tips /ideas...
Post by: Kim on 06 October, 2022, 01:00:56 pm
District heating seems to be the smart solution.  For places that aren't BRITAIN, anyway, we'd never do something like that here.
Title: Re: Home energy saving tips /ideas...
Post by: DuncanM on 06 October, 2022, 01:11:52 pm
Apparently, heat pumps require a specific type of hot water cylinder, so despite having a cylinder already, we'd need to change it if we got a heat pump. :(
Our water is heated via a solar diverter, which is great, because for 8 months of the year we have all the free hot water we need. Unfortunately, it seems to also mean that come the winter the 3 way valve for the heating/hot water is broken due to lack of use and needs replacing. :( Also, stupid power shower uses 8kW, so I'm guessing it's heating cold water, rather than already heated water. :(
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 06 October, 2022, 01:13:16 pm
We'd find a way to make district heating super-expensive and crap.  In fact, people with communal heating had a problem with the energy price rebate AIUI, although that may have been resolved now.  The energy billpayer got the discount, and the users only pay the billpayer.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 06 October, 2022, 01:15:51 pm
Also, stupid power shower uses 8kW, so I'm guessing it's heating cold water, rather than already heated water. :(

That's not a Power Shower, which provides you with oddles of glorious pump-assisted hot water from a tank.  That's a Pissy Landlord Electric Shower™, which passes mains-pressure cold water through a dubious heating element and pressure restriction valve, before dribbling it over the shivering victim.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 06 October, 2022, 01:17:09 pm
There are many, many houses built in the last 30 years that have no airing cupboard.  They'll probably have to lose part of a bedroom to make space for a hot water cylinder. 
Title: Re: Home energy saving tips /ideas...
Post by: grams on 06 October, 2022, 01:30:28 pm
Also, stupid power shower uses 8kW, so I'm guessing it's heating cold water, rather than already heated water. :(

Almost all electric showers have no thermal regulation - when you switch them on it just turns the element on at full power and the temperature is determined by the rate of flow. Some have an "ECO" mode that disables half the element.

And yeah, they're invariably connected to the cold water supply.

You can get tankless hot water heaters (which are basically electric showers but not designed to live in a shower cubicle) with thermal regulation electronics that might be able to boost a tepid supply. However they're also invariably designed for cold supplies only.
Title: Re: Home energy saving tips /ideas...
Post by: DuncanM on 06 October, 2022, 01:48:45 pm
Also, stupid power shower uses 8kW, so I'm guessing it's heating cold water, rather than already heated water. :(

Almost all electric showers have no thermal regulation - when you switch them on it just turns the element on at full power and the temperature is determined by the rate of flow. Some have an "ECO" mode that disables half the element.

And yeah, they're invariably connected to the cold water supply.
Our previous iteration had a temperature dial that allowed you to set actual temperature in Celcius. I assume that had some awareness of the concept of temperature. When that broke (after 8 years of service, so no complaints here), we got something a quarter as good for half the price - I'm sure this one just does as you says and is as dumb as it looks.   :(
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 06 October, 2022, 02:14:28 pm
District heating seems to be the smart solution.  For places that aren't BRITAIN, anyway, we'd never do something like that here.
There is some district heating already with more being installed in, of all places, Marvinville.
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 06 October, 2022, 02:53:12 pm
District heating seems to be the smart solution.  For places that aren't BRITAIN, anyway, we'd never do something like that here.
There is some district heating already with more being installed in, of all places, Marvinville.
In Thee Olden Days, Battersea Power station provided district heating for some flats across the river. Or so my fading memory branes of an episode of Blue Peter told me.
Title: Re: Home energy saving tips /ideas...
Post by: Jurek on 06 October, 2022, 03:03:09 pm
District heating seems to be the smart solution.  For places that aren't BRITAIN, anyway, we'd never do something like that here.
There is some district heating already with more being installed in, of all places, Marvinville.
In Thee Olden Days, Battersea Power station provided district heating for some flats across the river. Or so my fading memory branes of an episode of Blue Peter told me.
Indeed.
The water storage tower from the system remains to this day
https://www.google.co.uk/maps/@51.4859606,-0.1405631,3a,75y,89.9h,126.44t/data=!3m6!1e1!3m4!1sSNWH1fx7Xv6q69q_b-AaVw!2e0!7i16384!8i8192?hl=en
Title: Re: Home energy saving tips /ideas...
Post by: citoyen on 06 October, 2022, 03:34:17 pm
You can get tankless hot water heaters (which are basically electric showers but not designed to live in a shower cubicle) with thermal regulation electronics that might be able to boost a tepid supply. However they're also invariably designed for cold supplies only.

Isn't the need for a cold water supply because there isn't enough pressure in hot water fed from a cylinder?

One of the benefits of a combi is hot water at not far off mains pressure. Our shower isn't quite as powerful as a good power shower, but is considerably more powerful than a Pissy Landlord Electric Shower.

Another benefit is not having to worry about how to store hot water. But yes, will be an issue if we ever convert to heat pump.
Title: Re: Home energy saving tips /ideas...
Post by: MikeFromLFE on 06 October, 2022, 04:23:02 pm
District heating seems to be the smart solution.  For places that aren't BRITAIN, anyway, we'd never do something like that here.
Not quite district heating but the block of flats where I misspent my teenage years had a central gas boiler that fed all the flats with (supposedly) hot air central heating.
There was some sort of gubbins in the airing cupboard as I recall.
The ducts eventually became conduits for rodents and were taken out of use.
The block was new in about 1966 and the heating wasn't in use in 1980 AFAIR.
There were / are two similar blocks in Haringey : Tiverton Road and Chettle Court.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 06 October, 2022, 07:08:17 pm
I wonder what the availability of firewood will be like in January?  If I'm in every day,  I get through about 1.5 tonnes per winter but only have storage for half that.  I usually need another delivery in the new year.
Title: Re: Home energy saving tips /ideas...
Post by: chrisbainbridge on 06 October, 2022, 07:39:45 pm
I order mine in August and took delivery of  quarter pallet in September.  Compressed blocks of wood dust from factories. I used relatively little last year so have a lot left over.
Title: Re: Home energy saving tips /ideas...
Post by: TimC on 06 October, 2022, 07:59:30 pm
You can get tankless hot water heaters (which are basically electric showers but not designed to live in a shower cubicle) with thermal regulation electronics that might be able to boost a tepid supply. However they're also invariably designed for cold supplies only.

Isn't the need for a cold water supply because there isn't enough pressure in hot water fed from a cylinder?

One of the benefits of a combi is hot water at not far off mains pressure. Our shower isn't quite as powerful as a good power shower, but is considerably more powerful than a Pissy Landlord Electric Shower.

Another benefit is not having to worry about how to store hot water. But yes, will be an issue if we ever convert to heat pump.


I have a pressurised hot water system, electrically heated and fed from a tank. The pressurisation comes from the mains cold water plus an accumulator inside the 230L tank. Hot water is at mains pressure, and as the cylinder is new it holds heat extremely well. It generally takes an hour or less to heat, and at midnight - 20 hours after the heat cycle finished - it’s still too hot to use unmixed. It may not be very efficient in financial terms, but it’s bloody good from a user POV.
Title: Re: Home energy saving tips /ideas...
Post by: citoyen on 06 October, 2022, 08:09:32 pm
We did look at pressurised cylinders when we replaced our boiler all those years ago but decided they were too expensive - not least because I would have wanted to move the location of the cylinder as well.
Title: Re: Home energy saving tips /ideas...
Post by: MikeFromLFE on 06 October, 2022, 08:38:11 pm
Would there be any savings if we stopped messing around with the clocks twice a year?
I can't quite get my head around which way might yield any savings, if any.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 06 October, 2022, 08:51:33 pm
Interesting question.  If we assume modern lighting that uses approximately naff all energy and a modicum of insulation to spread the heating demand, I suppose the biggest effect of skewing business hours with respect to astronomical time is how much of the evening demand peak you can meet with solar power in the summer?

You can probably make similar arguments in favour of pointing solar panels further west (trading overall production for peak output at a more useful time).

I suspect it's easier to install lots of batteries than change the habits of countless bureaucracies, though.
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 06 October, 2022, 09:02:15 pm
Unfortunately, it seems to also mean that come the winter the 3 way valve for the heating/hot water is broken due to lack of use and needs replacing. :(

It takes a lot less than that for a 3 way valve to fail.  IME, for example, any of these circumstances seem to be sufficient to strain one utterly to deth:
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 06 October, 2022, 09:50:09 pm
Would there be any savings if we stopped messing around with the clocks twice a year?
I can't quite get my head around which way might yield any savings, if any.

Not as much as if we stopped fixation on the idea of forcing people to start work in the middle of the night.

If businesses spread their morning starts over say 0900-1200, then we wouldn't need the whole blood work force trying to migrate in a single one hour period. It would also be a lot more helpful for those of us who aren't mutant freaks, and thus don't do mornings. Then we could have our train services spread out a bit, and that would use less power.

We.might also use a bit less on lighting. But possibly at a cost of extra heating.

But seeing as all buildings built in the last couple of decades understand and use passive House standards, an modern office can be heated with the waste heat of a few laptop power supplies... Right ?

I know I'm the only person left who likes the change of day light savings. But it was brought in during a time of resource scarcity, to reduce resource use...

J
Title: Re: Home energy saving tips /ideas...
Post by: TPMB12 on 06 October, 2022, 10:10:57 pm
District heating seems to be the smart solution.  For places that aren't BRITAIN, anyway, we'd never do something like that here.
Plus you'd get the fun of watching the district heating being turned on in waves across the country. I once got told that in Bulgaria the seasonal obsession was watching the communal heating being turned on in turn as the colder weather spread out across the country.  People talked about it like Brits talk about the weather. It's even gets mentioned in the weather forecasts!

Of course it's them out of user control such that buildings have heating set across the building with central control. It often ends up with it being too hot early in the season so often windows are left open with the centrally set heating on full! There's flaws in most things humans do I reckon.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 06 October, 2022, 10:45:15 pm

Plus you'd get the fun of watching the district heating being turned on in waves across the country. I once got told that in Bulgaria the seasonal obsession was watching the communal heating being turned on in turn as the colder weather spread out across the country.  People talked about it like Brits talk about the weather. It's even gets mentioned in the weather forecasts!

Of course it's them out of user control such that buildings have heating set across the building with central control. It often ends up with it being too hot early in the season so often windows are left open with the centrally set heating on full! There's flaws in most things humans do I reckon.

I have district heating at both home and work. Never had any worries about there not being heat. Main issue is being top floor all the air collects in my radiators. So October involves the yearly bleeding all the radiators ritual, followed a week later by doing it again as more air gets trapped.

Every now and then someone downstairs has a plumber do some work on their rads, and then I have to dump a fuckton of air out my rads.

Right now my heating comes from rubbish incineration. But I wonder how long that will last. I fully expect them to install a bloody great water source heet pump to feed it.

Will be interesting to see what happens.

J
Title: Re: Home energy saving tips /ideas...
Post by: Jaded on 06 October, 2022, 11:09:32 pm
District heating seems to be the smart solution.  For places that aren't BRITAIN, anyway, we'd never do something like that here.

Of course we wouldn't.

There will always be some lazy, good for nothing scammer taking more heat out of the system than they deserve, thus depriving hard-working families of their rightful heat.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 07 October, 2022, 08:15:38 am
Unfortunately, it seems to also mean that come the winter the 3 way valve for the heating/hot water is broken due to lack of use and needs replacing. :(

It takes a lot less than that for a 3 way valve to fail.  IME, for example, any of these circumstances seem to be sufficient to strain one utterly to deth:
  • A 'y' in the day.
  • The sky being above the ground
  • Something about the colour of grass, I forget.

Odd, that has not been my experience.

I used a Y valve when I installed heating on the big barge. Couple of years of use, in a very damp environment. Then 3 years where the boat was empty, freezing in winter (I forgot to empty pipes one winter, they froze and burst).

Tested the heating about once a year. Y valve worked each time.

Most of them have a lever where you can manually set the valve position. Worth pushing that back and forth before deciding that the valve is knackered, I reckon.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 07 October, 2022, 10:42:25 am
District heating seems to be the smart solution.  For places that aren't BRITAIN, anyway, we'd never do something like that here.
Plus you'd get the fun of watching the district heating being turned on in waves across the country. I once got told that in Bulgaria the seasonal obsession was watching the communal heating being turned on in turn as the colder weather spread out across the country.  People talked about it like Brits talk about the weather. It's even gets mentioned in the weather forecasts!

Of course it's them out of user control such that buildings have heating set across the building with central control. It often ends up with it being too hot early in the season so often windows are left open with the centrally set heating on full! There's flaws in most things humans do I reckon.
It's not out of user control. You still have thermostats on each radiator.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 07 October, 2022, 11:59:56 am
Unfortunately, it seems to also mean that come the winter the 3 way valve for the heating/hot water is broken due to lack of use and needs replacing. :(

It takes a lot less than that for a 3 way valve to fail.  IME, for example, any of these circumstances seem to be sufficient to strain one utterly to deth:
  • A 'y' in the day.
  • The sky being above the ground
  • Something about the colour of grass, I forget.

Odd, that has not been my experience.

I used a Y valve when I installed heating on the big barge. Couple of years of use, in a very damp environment. Then 3 years where the boat was empty, freezing in winter (I forgot to empty pipes one winter, they froze and burst).

Tested the heating about once a year. Y valve worked each time.

Most of them have a lever where you can manually set the valve position. Worth pushing that back and forth before deciding that the valve is knackered, I reckon.

Fair chance it's just the motor not working, not the physical valve - dead simple to replace and cheap as chips - lots of YT videos - this one does it  https://www.youtube.com/watch?v=KT6mq1440zM
Title: Re: Home energy saving tips /ideas...
Post by: DaveReading on 07 October, 2022, 08:12:43 pm
I know I'm the only person left who likes the change of day light savings. But it was brought in during a time of resource scarcity, to reduce resource use...

Well you, and a few million Scots.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 07 October, 2022, 08:17:27 pm
<waves>
Title: Re: Home energy saving tips /ideas...
Post by: cygnet on 07 October, 2022, 11:01:49 pm
I'm just gonna hypothesize here

Would it be better if busineses that are not physically affected by such time constraints (fill in your requirements here) allowed their staff to work Solar fexible hours (even around a "core" time to facilitate real-time and face-to-face) or hands on as required paid appropriately, and just shut up about the rest

The UK is not wide compared to other time zones. It's not "tall" compared to other time zones either.

Obviously some jobs have to be carried out in daylight (or with massive lighting rigs which is not going to go well with carbon reduction.

Could local time work locally? My winter hours are from 9-6 GMT and my summer hours are from 8-5 GMT.

What businesses would be adversely affected?
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 07 October, 2022, 11:36:01 pm
Businesses (in general) can do what ever they want if they don't want to be dicks about it.
My preferred summer hours are 0730 to 1530. My preferred winter hours may be an hour or so later depending on whether I WFH or not.
I cover eastern hemisphere, not a lot of call on my time from Asia Pac but there is from Middle East (who are a royal pain). Also need to be available for the odd training from US but if it's not available at 2pm in general you can watch a recording.
These hours might not exactly fit with whatever my individual customers work in each country but I cover the main bits and if they can't wait a couple of hours then screw them, I'm not working on anything that is critical to people's health or security.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 08 October, 2022, 02:45:26 am

I work 1000-1800. I fall out of bed at 0955. And face the laborious commute to the other end of my flat. To power up the laptop at 1000.

I do tend to then cycle to work sometime before lunch. The 10 mins it takes is a nice screen break to think about what ever issue I've found sitting in my inbox that morning.

It's very civilised. I'm happier. And more productive than when I used to be forced to be at my desk 30 mins away by 090. That extra 2 hours in bed really works well for me. I goto bed at about 2am. My insomnia is also a lot better. I'm no longer trying to force myself to sleep 2 hours earlier than my body wants to sleep, just so I can be up earlier than my body wants to wake up. I've had insomnia for years. And while it's not completely gone now. (I'm writing this at 0240), it's a lot better than its ever been. The amount of doctors appointments, and prescriptions I've had. All of them to fight against what my body and brain finds more natural. I can't be the only one this is true for.

Many years ago when I was on JSA. I got offered an appointment at something stupidly early like 9am. And when I suggested that I'd be happier with something later. I was told somethy along the lines of "well when you have a job you'll have to get up early anyway, so get used to it".

We know we have people who are more night people and we have mutant weirdos who are morning people. That we have allowed the morning people to completely dictate the timezone that society functions upon feels... Misguided at best.

So many night people would be happier, and more productive of the were allowed to work within what they naturally want to do. Rather than be forced to work against who the are.

Bringing this back to DST. For me it's less about the time shift. As it is about the way it marks to me the changing of the seasons. The 1 hour forward in spring when you suddenly come home from work and it's still light. And you can sit in the early evening sun and have a drink and watch the sun set. And know you've survived another winter. Spring is here, and it's gonna be pretty. The 1 hour back in October is the price paid for that experience in march...

J
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 08 October, 2022, 07:18:33 am
This week, there have been two days sunny enough for me to have a hot shower the following morning. There probably won’t be more than two or three of those between now and February.

On the days when the water hasn’t been hot enough, I haven’t bothered having a shower.
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 08 October, 2022, 08:36:35 am
Fair chance it's just the motor not working, not the physical valve - dead simple to replace and cheap as chips - lots of YT videos - this one does it  https://www.youtube.com/watch?v=KT6mq1440zM
Microswitch failure is most frequent, every 2nd winter usually (per switch, there's 2). Motors are good for ~5 years before starting to weaken. I'm currently in year 2 of a complete new head as the previous one had been repaired so many times I gave up with it. Agreed on the valve itself, that's not failed. Yet.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 08 October, 2022, 02:53:11 pm

I work 1000-1800. I fall out of bed at 0955. And face the laborious commute to the other end of my flat. To power up the laptop at 1000.

I do tend to then cycle to work sometime before lunch. The 10 mins it takes is a nice screen break to think about what ever issue I've found sitting in my inbox that morning.

It's very civilised. I'm happier. And more productive than when I used to be forced to be at my desk 30 mins away by 090. That extra 2 hours in bed really works well for me. I goto bed at about 2am. My insomnia is also a lot better. I'm no longer trying to force myself to sleep 2 hours earlier than my body wants to sleep, just so I can be up earlier than my body wants to wake up. I've had insomnia for years. And while it's not completely gone now. (I'm writing this at 0240), it's a lot better than its ever been. The amount of doctors appointments, and prescriptions I've had. All of them to fight against what my body and brain finds more natural. I can't be the only one this is true for.

Many years ago when I was on JSA. I got offered an appointment at something stupidly early like 9am. And when I suggested that I'd be happier with something later. I was told somethy along the lines of "well when you have a job you'll have to get up early anyway, so get used to it".

We know we have people who are more night people and we have mutant weirdos who are morning people. That we have allowed the morning people to completely dictate the timezone that society functions upon feels... Misguided at best.

So many night people would be happier, and more productive of the were allowed to work within what they naturally want to do. Rather than be forced to work against who the are.

Bringing this back to DST. For me it's less about the time shift. As it is about the way it marks to me the changing of the seasons. The 1 hour forward in spring when you suddenly come home from work and it's still light. And you can sit in the early evening sun and have a drink and watch the sun set. And know you've survived another winter. Spring is here, and it's gonna be pretty. The 1 hour back in October is the price paid for that experience in march...

J

I work roughly 0700-1200, 1400 - 2000

the 2 hr slot in the middle of the day allows me to do things like; a bit of DIY, walk the dog, go for a jog; basically, get off the office chair and get outside. It will really good in winter, when it is dark for nearly 20hrs.

MrsC has chronic insomnia. I'd prefer to go to bet at 2230, falling-asleep-time about 2300. MrsC will fall asleep then; and wake about 1am, 2am.  Suggested to her that she gets up and does something, rather than lying there exhausted but unable to sleep.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 08 October, 2022, 06:38:03 pm
Apropos of nothing, I decided to calculate the difference in cost between having our daily showers with the current Pissy Landlord Electric Shower TM vs when I get a proper one plumbed into the gas boiler. Based on 6 mins a day (total for both of us) I reckon £36/yr for PLES vs £41/yr for one connected to the boiler. A bit more, but that doesn't factor in for less time spent rinsing under a decent volume of water for the latter.
Title: Re: Home energy saving tips /ideas...
Post by: rafletcher on 08 October, 2022, 06:47:12 pm

I work 1000-1800. I fall out of bed at 0955. And face the laborious commute to the other end of my flat. To power up the laptop at 1000.

I do tend to then cycle to work sometime before lunch. The 10 mins it takes is a nice screen break to think about what ever issue I've found sitting in my inbox that morning.

It's very civilised. I'm happier. And more productive than when I used to be forced to be at my desk 30 mins away by 090. That extra 2 hours in bed really works well for me. I goto bed at about 2am. My insomnia is also a lot better. I'm no longer trying to force myself to sleep 2 hours earlier than my body wants to sleep, just so I can be up earlier than my body wants to wake up. I've had insomnia for years. And while it's not completely gone now. (I'm writing this at 0240), it's a lot better than its ever been. The amount of doctors appointments, and prescriptions I've had. All of them to fight against what my body and brain finds more natural. I can't be the only one this is true for.

Many years ago when I was on JSA. I got offered an appointment at something stupidly early like 9am. And when I suggested that I'd be happier with something later. I was told somethy along the lines of "well when you have a job you'll have to get up early anyway, so get used to it".

We know we have people who are more night people and we have mutant weirdos who are morning people. That we have allowed the morning people to completely dictate the timezone that society functions upon feels... Misguided at best.

So many night people would be happier, and more productive of the were allowed to work within what they naturally want to do. Rather than be forced to work against who the are.

Bringing this back to DST. For me it's less about the time shift. As it is about the way it marks to me the changing of the seasons. The 1 hour forward in spring when you suddenly come home from work and it's still light. And you can sit in the early evening sun and have a drink and watch the sun set. And know you've survived another winter. Spring is here, and it's gonna be pretty. The 1 hour back in October is the price paid for that experience in march...

J

With those hours why do you bother about DST?  I’d prefer a lighter evening to a lighter morning. I’m at my desk for 07:30. 
Title: Re: Home energy saving tips /ideas...
Post by: citoyen on 08 October, 2022, 10:23:45 pm
I reckon £36/yr for PLES vs £41/yr for one connected to the boiler. A bit more, but that doesn't factor in for less time spent rinsing under a decent volume of water for the latter.

Got to be worth an extra fiver a year just so you don't feel like you're being pissed on by a tramp with a dodgy prostate when taking a shower.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 08 October, 2022, 10:43:52 pm
Quite.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 08 October, 2022, 10:45:55 pm
Apropos of nothing, I decided to calculate the difference in cost between having our daily showers with the current Pissy Landlord Electric Shower TM vs when I get a proper one plumbed into the gas boiler. Based on 6 mins a day (total for both of us) I reckon £36/yr for PLES vs £41/yr for one connected to the boiler. A bit more, but that doesn't factor in for less time spent rinsing under a decent volume of water for the latter.

I've got a mixer shower on the combi-boilers DHW, when the Smart meter works it seems to cost around 20p
I last had a shower using an electric shower at Black Rock Cottage, assuming the coin meter matches the electricity rates I was 34p

But I have considerably better water pressure at home than whot the pumps at Black Rock can produce from the Ski Centre's private supply.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 08 October, 2022, 10:48:10 pm
20p a day would be £146 a year for 2 of us, which doesn't seem right.
Title: Re: Home energy saving tips /ideas...
Post by: grams on 08 October, 2022, 11:04:49 pm
Depends on the length of your showers. A good shower needs 10 kW or more. Multiply by 6 minutes you get 1 kWh. Multiply by the inefficiencies of heating water with a combi boiler and current gas unit rates and 20p seems a reasonable figure.

(3 minutes per person is surely well below average)
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 08 October, 2022, 11:07:08 pm
Our shower is only 9.5kw so the 10 or more is academic. My GCH figure is based on a 24kw boiler, and after significantly overestimating somewhere upthread, I timed my shower and it was 3 mins (and that's in the pissy landlord electric shower).
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 08 October, 2022, 11:19:23 pm

With those hours why do you bother about DST?  I’d prefer a lighter evening to a lighter morning. I’m at my desk for 07:30.

Well I live in a country that does dst...

As I explained to me it's more about the changing seasons and the lighter evenings of spring. Than it is about anything else.

J
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 09 October, 2022, 08:35:16 am
Our shower is only 9.5kw so the 10 or more is academic.
Not entirely. You know what a 9.5kW shower feels like, guesstimate what flow rate you'd like to have. Your xxkW desired shower will be xxkW wether it is heated on demand electric1, on demand from a combi gas2, pre-heated by a traditional boiler3, heat pump4, solar thermal5 etc, etc.

Efficiency of the various types varies but the starting temperature of your incoming water does not. That means the kW put into heating the water to your desired shower is known.

1 Unlikely, I think 10.5kW is the max you can get.
2 Very relevant to know, combis are power limited for each side. You want to know your desired water heating capacity, your heating engineer will calculate your needed room heating side capacity6.
3 Basically unlimited so long as your tank is big enough for 2 showers.
4 Magic if you are lucky enough to be able to have one as 1kW of water heating takes <1kW of electricity to produce.
5 Not gonna happen. Temperature ST heats to is defined by the sun availability, e.g doubling an array size has next to no impact upon its output temperature on a given day.
6 Or you can by measuring and looking up the thermal output of your current radiators. Then add a bit where insufficient.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 09 October, 2022, 01:00:34 pm
Our shower is only 9.5kw so the 10 or more is academic. My GCH figure is based on a 24kw boiler, and after significantly overestimating somewhere upthread, I timed my shower and it was 3 mins (and that's in the pissy landlord electric shower).

There's your error. If you want an exact like for like, you need to calculate the energy to heat the amount of water you use, the power of the boiler is not directly relevant. Conveniently gas cost these days is expressed per Kwh so, you don't even need to know this to compare. All you need to know is the relative cost per Kwh (appx 4 x for leccy) and the comparative efficiency turning power into heat. Leccy is going to be close to 100%, gas, who knows, say 80% (avoiding the claimed 90%s). Then you have to consider how much more water you will use in a decent shower, and you have the comparative cost.

When you try to get the actual cost, you bump into the factors I was bleating on about earlier, how much "hot" of the hot water are you wasting and not using? Again the leccy is simpler, as it always heats from cold.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 09 October, 2022, 06:02:43 pm
I don't think I have an answer,  I'm bamboozled by thermodynamics and maths now.
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 17 October, 2022, 02:43:16 pm
Now have a Smart plug on the washing machine.  1hr / 40C was was 0.38kW/h, & 15min / 30C was 0.15kW/h.
---

I notice for Sept 22 our gas use was ~180kw/h, previous 3yrs our average has been ~400kw/h for Sept.  So heading in right direction...
Title: Re: Home energy saving tips /ideas...
Post by: road-runner on 17 October, 2022, 06:33:10 pm
Andy, do you really have a gas-powered washing machine?
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 21 October, 2022, 01:27:38 pm
 ;D  Ok, I admit defeat - don't think they actually exist...
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 21 October, 2022, 02:26:35 pm
;D  Ok, I admit defeat - don't think they actually exist...
I've seen gas (heated) tumble driers before now.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 21 October, 2022, 02:30:32 pm
;D  Ok, I admit defeat - don't think they actually exist...
I've seen gas (heated) tumble driers before now.

They are an Americanism I thought...

J
Title: Re: Home energy saving tips /ideas...
Post by: grams on 21 October, 2022, 02:34:30 pm
I remember the TV adverts:
https://www.youtube.com/watch?v=1FBvUzxqrHI

Apparently you can still buy them:
https://www.rgbdirect.co.uk/Products/Appliances/Dryer/White-Knight/ECO43AW

(ETA: It says discontinued)
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 21 October, 2022, 02:36:38 pm
;D  Ok, I admit defeat - don't think they actually exist...
I've seen gas (heated) tumble driers before now.

They are an Americanism I thought...

Probably that feeble leftpondian anbarism again.  In the UK they're mostly an industrial thing, sort of thing you find in laundrettes.
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 21 October, 2022, 02:50:39 pm
;D  Ok, I admit defeat - don't think they actually exist...
I've seen gas (heated) tumble driers before now.

They are an Americanism I thought...

Probably that feeble leftpondian anbarism again.  In the UK they're mostly an industrial thing, sort of thing you find in laundrettes.
Mine was in a campsite in the Lake District, where Getting Things Dry is a much sought after requirement.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 21 October, 2022, 05:19:27 pm
White Knight was the main brand.  The main issue was installation cost - it would take a while to get back the cost of running a new pipe from the meter and connecting it up, then paying again when it needs replacing.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 21 October, 2022, 10:52:38 pm
Vague recollection of White Knight having some sort of sponsorship deal with handcyclist Kevin Doran back when he was setting records on a bike built by my grate frend Mr Woolrich</ob_cycling>
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 28 October, 2022, 01:01:08 pm
I just phoned Ecotricity to ask them for a refund of the >£600 belonging to me that was sitting in their account. This they have agreed to do, no prob.

I also discussed with the operative whether Ecotricity have any suggested partners who might install solar panels/domestic battery type of gubbins. Apparently they have an arm calls Microtricity and they are going to phone me back.

"It might take a while for them to respond," said she.

"Not a problem," I replied. "Now we are going int the winter months there won't be a lot generated anyway, so there's no rush."

"And the clocks are going back this weekend!"
Title: Re: Home energy saving tips /ideas...
Post by: Canardly on 28 October, 2022, 01:09:46 pm
Had my solar PV surveyor attend this morning. As installation is to be over 4kW it will take 8-12 weeks thereafter for system installation to be approved by the Electricity provider (Ovo). Not buying battery atm but will install a hybrid inverter to allow me to do so more readily in the future. Ovo are planning to install systems in future but no commencement date has been announced as yet. Eon already install PV systems but they seem expensive.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 28 October, 2022, 01:11:07 pm
"And the clocks are going back this weekend!"

Saves moving the panels 15 degrees to the left.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 28 October, 2022, 01:15:16 pm
While we're on the subject of energy, I attended the Ripple Kirk Hill co-op AGM on zoom the other night.  I've never seen someone look so tired as when a question was asked about the possible implications of having a new energy minister.

They do seem to be making steady progress on the windmill-construction front.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 28 October, 2022, 01:28:30 pm
Persimmon have done a deal to put in one turbine* for every 20,000 houses they are permitted to build?

*in a safe Labour constituency
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 02 November, 2022, 07:48:28 pm
Our smart meter displays a bar graph covering 14 months' worth of energy use one each for gas & electricity. Every month for the past year at least, we have managed to reduce our use on a month-by-equivalent month basis.
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 02 November, 2022, 08:00:40 pm
we are saving so much at the moment, we are over £1000 in credit  with combined power supplier.  I'm sure that will change by March tho.
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 02 November, 2022, 08:46:47 pm
Last Oct we used 860kW/h Gas, this Oct it's been 260kW/h.  Mind you it's been v.mild & so no central heating.  Thermostat (on timer) has now been moved up to 17C ish :)
Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 02 November, 2022, 09:09:49 pm
While we're on the subject of energy, I attended the Ripple Kirk Hill co-op AGM on zoom the other night.  I've never seen someone look so tired as when a question was asked about the possible implications of having a new energy minister.

They do seem to be making steady progress on the windmill-construction front.

I had to walk a fairly conservative lawyer through regulatory risk on a new build UK renewable project.  At that point I didn’t know who the PM would be the following week…..

Still waiting for a proper view on support for new build on-shore wind and solar.   Price capping is rumoured but the key will be where the cap is set and how the scheme will be administered.   I have questions.

(On top of the 41 houses going in opposite me there’s a pre-planning solar farm just behind that.  It’s massive.   This is testing my support for renewables a little.)
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 02 November, 2022, 09:22:20 pm
The Loop app tells me that my "phantom load" (ie background) use is in the top 20% of similar households (not sure whether that is 2 person or 4 bed) which left me a little crestfallen, as I thought I was doing quite well.

It's very clear that my background power use is 100w, and I realise that's now £300/year but for that I power:

Going from the cellar up:
2 x freezers
1 x Burglar alarm
1 x Cable modem
1 x Wifi hub
1 x aerial amp/distribution
2 x smart thermostats
1 x weather thingy
1 x Big TV on standby
1 x wired handsfree phone
1 x American style fridge freezer
1 x Ovens
1 x Microwave
4 x chargers
1 x Small TV on standby
1 x PVR on standby
2 x Smart speakers
1 x Smart screen thing
1 x radio alarm
3 x cordless phone and 1 base station
1 x CCTV system

Obviously the Fridge/freezers take the lion share of that, I thought I was doing rather well at 100wH

I dug into it a little more and saw that the app thinks my phantom usage is costing £650 a year, which doesn't jive in any way with these numbers. So, I read their methodology - "Loop calculates your phantom load by looking at periods of your day with very low usage and measuring how low the usage is. These low usage periods can be from quiet points during the day or overnight, depending on how you use energy at home." and the penny dropped. We put our dishwasher on overnight, and often the washing machine on the long eco cycle. Their algorithm must have taken those into account. I can go back to being reasonably sanguine about it. (The background TVs, the only items which could be powered down are low standby usage)
Title: Re: Home energy saving tips /ideas...
Post by: fruitcake on 02 November, 2022, 09:48:57 pm
It's difficult to keep turning everything off, especially when there are clocks that reset to midnight when their power supply is cut. I've gradually been getting rid of household appliances that have built-in clocks just so I can switch things off and not be plagued by blinking LED clocks. There's a vintage that's particularly affected by the curse of the digital clock without a back-up battery. Stuff made in the 1990s and into the 2000s.

A friend talks of rewiring his kitchen to put everything on a single switch he can flip as he leaves the room, just to be sure nothing remains on 'standby'. I've thought it might be nice to switch off the entire house when going out. If only it wasn't for that freezer.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 02 November, 2022, 09:58:15 pm
It's all a cost-benefit thingy really, as long as I can afford to, having those powered items is a choice. Also, older appliances thought nothing of having a 10w draw on standby, these days,  that's much more likely to be mW
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 02 November, 2022, 10:07:38 pm
A friend talks of rewiring his kitchen to put everything on a single switch he can flip as he leaves the room, just to be sure nothing remains on 'standby'. I've thought it might be nice to switch off the entire house when going out. If only it wasn't for that freezer.

Both doable, of course.  But you can buy quite a lot of electrons for the cost of that rewiring, and how much stray load is there in your average kitchen?

I do have the smartplug on the microwave programmed to switch off when we're in bed / the house is empty, which saves a whole 2 watts (1.5W when you factor in the power drawn by the smartplug itself).
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 02 November, 2022, 10:13:55 pm
Our electricity usage is about 30% down on this time last year but I expect that's because we got rid of the shitty Beko electric cooker and replaced it with a gas hob and a modern leccy oven.
Don't really have enough data to compare the gas being as we only have 13 months data here and this month has been really mild but will be interesting to see if the smart thermostat makes a noticeable difference by the end of the year.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 02 November, 2022, 10:16:14 pm
I do have the smartplug on the microwave programmed to switch off when we're in bed / the house is empty, which saves a whole 2 watts (1.5W when you factor in the power drawn by the smartplug itself).

I have wondered if it was worth having the telly on a smart plug being as it's off for most of the day but can't be arsed doing the maths.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 02 November, 2022, 10:42:23 pm
I do have the smartplug on the microwave programmed to switch off when we're in bed / the house is empty, which saves a whole 2 watts (1.5W when you factor in the power drawn by the smartplug itself).

I have wondered if it was worth having the telly on a smart plug being as it's off for most of the day but can't be arsed doing the maths.

In this case, the smartplug has the more important duties of  a) making blinkenlights happen when the microwave finishes cooking, because barakta doesn't hear the beeping  b) monitoring power consumption  and  c) power cycling it at 13:01 to keep the sodding clock vaguely in sync with reality.  So programming it to switch off when appropriate is effectively free power-saving.

ETA: Also  d) switch off in response to the fire alarm, because why not?
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 02 November, 2022, 11:48:44 pm
I've abandoned my dining table room (read sun porch) for the winter, which was something I was trying to avoid doing because it means eating in front of the telly or computer.
I've left the heater on frost star though  because I don't want to freeze everything else in there.

Heavy curtains over the windaes helped a bit with the heat loss, the roofs been converted previously, think the floor is  tiles on concrete slab and the dwarf walls have normal plasterboard rather than insulated, and the house was has been deharled and smoothed, so no insulation there, worth it or ignore?

Sent from my IV2201 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: grams on 03 November, 2022, 09:56:48 am
I have wondered if it was worth having the telly on a smart plug being as it's off for most of the day but can't be arsed doing the maths.

TVs got so much regulatory attention from the standby consumption mafia that they’re now amongst the best devices. My 2012 47” LG measures 0.0 watts, which is less than the reading for a USB charger with nothing plugged in.

It’s other appliances (including smart plugs) that are worth worrying about.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 03 November, 2022, 10:18:15 am
The crappy Freesat box is so unstable that turning it off at the mains means it may not work when turned back on.  Unfortunately there is no choice in the market since Freesat took manufacturing in-house, which is why used Humax boxes, which work, sell for more than new Freesat (Arris) boxes, which often don't.
Title: Re: Home energy saving tips /ideas...
Post by: MikeFromLFE on 03 November, 2022, 12:51:18 pm


It’s other appliances (including smart plugs) that are worth worrying about.
I must get me a plug in monitor to see how much my Chinese smart plugs are wasting. I do wonder if they are using more than I'm saving with some of the devices they control.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 03 November, 2022, 12:57:36 pm
All mine seem to be in the half-watt range.  With atrocious power factor.  So comparable to any other reasonably modern appliance on standby.

Certainly a lot better than a mechanical timer.  I've got one here somewhere that I measured at about 5 Watts.
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 03 November, 2022, 01:30:08 pm
I have one of those mechanical plug in timers into which the dehumidifier is plugged.  I run the dehumidifier for a couple of hours overnight when the need arises such as for drying laundry at this time of year.  The timer itself has no indication on it about how much energy it uses so I simply unplug it when I get up and then set the timer dial and plug it in when I go to bed if it is needed.

Would be nice to know how much juice it burns but we are low use already and the extra load from the timer has been imperceptible against the dehumidifier and more lights at this time of year.

I like the idea of smart sockets but wonder about their consumption being in an always on status.

Still not using the heating but the Met Office forecast suggests that mllePB will be looking to supplement body heat and fleeces soon.
Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 03 November, 2022, 01:57:12 pm
I'm not sure I want to know how much my dehumidifer is costing to run. :-[ I'm hoping it's less than either using the tumble dryer for all the laundry, or having the heating on (it's not been cold enough to use the heating otherwise yet, which is unusual for November!).
Title: Re: Home energy saving tips /ideas...
Post by: Asterix, the former Gaul. on 04 November, 2022, 12:30:52 pm
Cooking rice

Put the rice in a saucepan with water several hours before you intend to eat it. When you come to cook it, the rice will have absorbed the water and won’t take nearly so long to cook.

Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 04 November, 2022, 02:30:20 pm
Same with lentils and I'm sure many other things. But probably not potatoes.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 04 November, 2022, 02:50:39 pm
If you put rice in a pan and boil for about five minutes, you can then just leave it slowly steam until you need it.

Not potatoes though unless you want watery soup.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 04 November, 2022, 02:57:03 pm
It might work with rusty nails of course. As long as you take them out at the end.
Title: Re: Home energy saving tips /ideas...
Post by: TimC on 05 November, 2022, 03:54:54 am
If you put rice in a pan and boil for about five minutes, you can then just leave it slowly steam until you need it.

Not potatoes though unless you want watery soup.

I was given/acquired/stole a tip for rice many years ago. Put rice in pan, cover with water to 1/4" above the grains. Bring to the boil, then simmer until the water level goes below the top of the rice. Turn it off and leave it for around 20 minutes. Result - perfect rice, no water. Doesn't work so well for brown rice, but it's not too far out as it takes longer to absorb the water.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 08 November, 2022, 05:49:12 pm
Today I've been getting super nerdy and calculating the heat requirement for our bedroom and the radiator size.
Based on the heat geek website that reckons a semi well insulated home (i.e. not built to modern standards) should require 40-65W/m2 and a Type 22 rad that puts out 1500W/m2 at 50C or 1050W/m2 at 40C, I reckoned that to be in the middle of that range we'd need a 0.6m h x 1.9m long radiator for 40C flow or a 1.6m long radiator for 50C flow.
What we currently have is a 0.9m long radiator.

I guess I'm missing 2 variables/options. I dunno exactly what my return temperature is but given that the boiler is 2 yrs old and I've got fancy weather/load compensation on it now (so I can't set it manually) I'm guessing it is going for the low side.
Current thermostat setting in the lounge below the bedroom is 18.5C so I guess I can either stick up the stat a bit higher, or get a bigger radiator. (Yeah, I need to improve the insulation but that involves getting the flat roof replaced and getting all the dormer cheeks insulated on the inside which will be £££££).
And I suppose what I really need to do first is see if the bedroom is getting to the desired temp or not. (I suspect it may be one of the last rads on the circuit).
Time to consult the Shellys I spose.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 09 November, 2022, 07:52:22 am
I have one of those mechanical plug in timers into which the dehumidifier is plugged.  I run the dehumidifier for a couple of hours overnight when the need arises such as for drying laundry at this time of year.  The timer itself has no indication on it about how much energy it uses so I simply unplug it when I get up and then set the timer dial and plug it in when I go to bed if it is needed.

Would be nice to know how much juice it burns but we are low use already and the extra load from the timer has been imperceptible against the dehumidifier and more lights at this time of year.

I like the idea of smart sockets but wonder about their consumption being in an always on status.

Still not using the heating but the Met Office forecast suggests that mllePB will be looking to supplement body heat and fleeces soon.
Doesn't it have a humidistat (not all do)?  If it does, better to set that to a level where you don't get mould/asthma/rust and leave it on, letting it take care of when it runs or doesn't.  Otherwise it's not doing its job.
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 09 November, 2022, 08:33:40 am
It's an ebac 2650 and I have it set on smart mode by default. 

We only need it a couple of times a week after a laundry session so leaving it "always on" even if it only kicks in very occasionally feels both unnecessary and counter intuitive.  We also still have that quaint economy 7 type of cheap overnight juice so running it overnight feels like the right thing to do as it's running on cheap leccy plus we are snoozing away whilst it does it's job.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 26 November, 2022, 10:04:21 am
Well, our new boiler is on place and while it is difficult to make any comparisons, as it coincided with the arrival of a colder spell, it does seem noticeably more efficient. Been playing with flow temperature (WHY does the manual tell you it's most efficient between 55 and 60, but then have no way of establishing that on the controls ??? - thermometer on the flow pipe is the only option)

Also playing with the hot water heating, and while turning down do you don't mix with cold works on some days, it doesn't on the others. So, having an app controlled thermostat makes some sense. Only, they just aren't available as far as I can see. Anyone know better? All the "smart" controllers only have on-off facilities, then relying on a mechanical thermostat to control the heat. Molding something shouldn't be too hard, but it would be much easier to get one off the shelf.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 26 November, 2022, 11:22:25 am
Ham, if you get an OpenTherm and Boiler Plus compatible controller/thermostat then it should come with either or both 'weather compensation' or 'load compensation'. The weather comp can be either by means of an external temp sensor fitted to a N facing wall of your property (think Worcester who aren't OpenTherm do this), or it looks up the weather in location on the internet (how my Wiser system works).
Boiler Plus gives other interesting options too:
https://www.boilerguide.co.uk/articles/opentherm-heating
Title: Re: Home energy saving tips /ideas...
Post by: Adam on 26 November, 2022, 07:48:37 pm
I was given/acquired/stole a tip for rice many years ago. Put rice in pan, cover with water to 1/4" above the grains. Bring to the boil, then simmer until the water level goes below the top of the rice. Turn it off and leave it for around 20 minutes. Result - perfect rice, no water. Doesn't work so well for brown rice, but it's not too far out as it takes longer to absorb the water.

My mum always cooked rice that way 50 years ago.  When the power was on of course, during the blackouts!
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 27 November, 2022, 07:58:34 am
Ham, if you get an OpenTherm and Boiler Plus compatible controller/thermostat then it should come with either or both 'weather compensation' or 'load compensation'. The weather comp can be either by means of an external temp sensor fitted to a N facing wall of your property (think Worcester who aren't OpenTherm do this), or it looks up the weather in location on the internet (how my Wiser system works).
Boiler Plus gives other interesting options too:
https://www.boilerguide.co.uk/articles/opentherm-heating
to

All that is about the general thermostat control. In that area, Ham Hall with its two heating areas and two nest thermostats is well served. The Nest does predictive and adaptive heating, meaning that you have to change your mindset when using it, so that you set target temperature for a certain time instead of what you would have done which was to accommodate the heating up period into your heating on time. Eg, you might have had heating coming on at 6:00, with Nest you have to say, I'd like the house up to temperature by 8, or some such. It also adapts to outside temperature, as it measures the time to get to heat set.

But that isn't what I'm after. None of those systems (if I am reading it right, and I think I am) does anything more than switch hot water on or off. What I want is to be able to change the hot water tank temperature remotely, that way bypassing the problem of setting it low, which is running out of hot water when you need more.
Title: Re: Home energy saving tips /ideas...
Post by: chrisbainbridge on 27 November, 2022, 08:27:51 am
Would an immersion heater with a wifi switch work?
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 27 November, 2022, 08:40:21 am
An idea, but it would have to be severely hacked to disable the heater (and, to leave it working for emergency use in boiler failure scenario)

The main option would be to build something with an Arduino, which would typically be used for temperature control, but it is fascinating that there is no commercial product for something so widely used with substantial potential energy saving benefit.

In my experimenting to date, I have found that the mechanical thermostat (Honeywell) has a substantial dead zone, tuning up and down. That alone would be reason to go digital, each extra unnecessary degree costs ££.
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 27 November, 2022, 09:48:24 am
An idea, but it would have to be severely hacked to disable the heater (and, to leave it working for emergency use in boiler failure scenario)

The main option would be to build something with an Arduino, which would typically be used for temperature control, but it is fascinating that there is no commercial product for something so widely used with substantial potential energy saving benefit.

In my experimenting to date, I have found that the mechanical thermostat (Honeywell) has a substantial dead zone, tuning up and down. That alone would be reason to go digital, each extra unnecessary degree costs ££.

Honeywell make a water temperature sensor that goes into the thermostat well of an immersion heater. I don't know if you could make use of that.

I suspect that the large dead zone is to make the thermostat contacts turn on and off sufficiently quickly.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 27 November, 2022, 10:19:11 am
d


Honeywell make a water temperature sensor that goes into the thermostat well of an immersion heater. I don't know if you could make use of that.

With WiFi control? If not that would have limited value, also the immersion is placed at the top of the cylinder, and the water temp at the bottom, because of the way they heat, I could see that causing issues in normal operation
Quote
I suspect that the large dead zone is to make the thermostat contacts turn on and off sufficiently quickly.

Yup, and for why I expect any other will be similar. There also has to be a gap between switch on and switch off of a number of degrees, otherwise the valves would get very annoyed.
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 27 November, 2022, 12:26:54 pm
My Glowworm has a MiGo stat. It does all the predictive stuff for the heating as described above and is controlled from an app on my phone.
Digging into the settings it allows adjustment of hot water temperature from the app although I don't think it can be linked to the timeswitch part. My knowledge of the hot water side is pretty much zilch though, as I use it with a combi boiler, so scheduling etc for hot water doesn't apply.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 27 November, 2022, 01:42:06 pm
My Glowworm has a MiGo stat. It does all the predictive stuff for the heating as described above and is controlled from an app on my phone.
Digging into the settings it allows adjustment of hot water temperature from the app although I don't think it can be linked to the timeswitch part. My knowledge of the hot water side is pretty much zilch though, as I use it with a combi boiler, so scheduling etc for hot water doesn't apply.

It's only 'acos it's a Combi you can adjust temperature, it's in the boiler
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 27 November, 2022, 06:32:44 pm
My Glowworm has a MiGo stat. It does all the predictive stuff for the heating as described above and is controlled from an app on my phone.
Digging into the settings it allows adjustment of hot water temperature from the app although I don't think it can be linked to the timeswitch part. My knowledge of the hot water side is pretty much zilch though, as I use it with a combi boiler, so scheduling etc for hot water doesn't apply.

It's only 'acos it's a Combi you can adjust temperature, it's in the boiler

Doh! <Heads over to Div thread>.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 02 December, 2022, 10:07:25 am
Well, our new boiler is on place and while it is difficult to make any comparisons, as it coincided with the arrival of a colder spell, it does seem noticeably more efficient. Been playing with flow temperature (WHY does the manual tell you it's most efficient between 55 and 60, but then have no way of establishing that on the controls ??? - thermometer on the flow pipe is the only option)

Also playing with the hot water heating, and while turning down do you don't mix with cold works on some days, it doesn't on the others. So, having an app controlled thermostat makes some sense. Only, they just aren't available as far as I can see. Anyone know better? All the "smart" controllers only have on-off facilities, then relying on a mechanical thermostat to control the heat. Molding something shouldn't be too hard, but it would be much easier to get one off the shelf.

I found one !!!!!! Huzzah !!!!! (https://www.heatingcontrolsonline.co.uk/drayton-digistat-plus-crf.html)

Wot ??? ? ? ? £240 ? ? ?  :sick: ::-) :facepalm:

Given that you can get a basic digital controller for around a tenner, and it looks to be about a £50 Arduino project (Time is the issue there) I don't think I'll be partaking.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 02 December, 2022, 11:02:22 am
Well, our new boiler is on place and while it is difficult to make any comparisons, as it coincided with the arrival of a colder spell, it does seem noticeably more efficient. Been playing with flow temperature (WHY does the manual tell you it's most efficient between 55 and 60, but then have no way of establishing that on the controls ??? - thermometer on the flow pipe is the only option)

Also playing with the hot water heating, and while turning down do you don't mix with cold works on some days, it doesn't on the others. So, having an app controlled thermostat makes some sense. Only, they just aren't available as far as I can see. Anyone know better? All the "smart" controllers only have on-off facilities, then relying on a mechanical thermostat to control the heat. Molding something shouldn't be too hard, but it would be much easier to get one off the shelf.

I found one !!!!!! Huzzah !!!!! (https://www.heatingcontrolsonline.co.uk/drayton-digistat-plus-crf.html)

Wot ??? ? ? ? £240 ? ? ?  :sick: ::-) :facepalm:

Given that you can get a basic digital controller for around a tenner, and it looks to be about a £50 Arduino project (Time is the issue there) I don't think I'll be partaking.

I think I've cracked it https://www.ebay.co.uk/itm/195225572104 plus a 3950 thermistor, job done.

Control range is only up to 50c, although display goes to 95 :(
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 02 December, 2022, 02:17:40 pm
@Chez BP we is economisering.  (great new word btw :)  ) We lives in a detached, 3 storey, 4 bed Victorian built abode, we does, with all thee probs of single skin walls.  A few windows are DG, most are original sash with a secondary perspex sheet.  So we has the heating set  to 12 at night,  up to 15 from 8am to 9am, down to 13.5 all day, up to 14 at 4.30, and up to 15 at 6.30. Sometimes we come in and its c  o  l d, at about 5pm, so we crank it up to 16, which then automatically chops back to 15 at 6.30.  Dinner about 6.45 in time for CH4 news :), and then mug of T, and into the lifesavers.

Whilst watching a Scandi Noir, a while back, where it gets mighty cold, in peoples houses,I kept spotting lifesavers, so this winter we tried them. My goodness gracious me, why we never tried them before I'll never know.  Our daily TOTAL of energy at the mo, and it's pretty damp and chilly, is hovering around £7.  not too bad, and we are still over £1k in credit with EON.

What are 'lifesavers'? ,,,,,,,,,,,,,,well, there are blankets of course, for the sofa/chair.  If you never have, you REALLY must. Its a core heat thing, room can be 15 deg, but in your sofa snuggerie, you are as warm as, if not too warm, so that when you go and make a T in the cold kitchen, you actually don't notice its cold.  ;).

Also we has a de-humidifier, and we puts in the bedroom, and turns it on, about 1/2hr before bedtime, and shuts the door, it dries the room a bit and warms it up a bit, double whammy.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 02 December, 2022, 02:45:56 pm
Cripes I don't know how you cope with 16C! I have such blankets, Dunelm's finest fleece folded in half all down my waist and legs, usually with a couple of cats on top and then another doubled up fleece wrapped round my upper body. If the temp is below 18 my nose is freezing!
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 02 December, 2022, 04:10:20 pm
Cripes I don't know how you cope with 16C!

TBF it IS mostly 15 deg. ;)  i just keep remembering my parents had no central heating when we grew up, neither did their parents etc. My first 'lurv nest' was a converted garage with conc floor, carpet tiles, single glazed windows, and no heating except an electric heater. The bed was a foam bed settee, that folded flat on the conc floor.  In the midst of winter,  the nets on the windows were frozen to the glass, and the bed stuck to the conc floor in the morning. But we were happy, and we survived. I think we have all become far too soft really, our heating was never on above 19 before , anyway.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 02 December, 2022, 04:26:10 pm
What are 'lifesavers'? ,,,,,,,,,,,,,,well, there are blankets of course, for the sofa/chair.
Like one of these (https://www.dunelm.com/product/aaron-sherpa-throw-1000189792)?
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 02 December, 2022, 04:56:35 pm
What are 'lifesavers'? ,,,,,,,,,,,,,,well, there are blankets of course, for the sofa/chair.
Like one of these (https://www.dunelm.com/product/aaron-sherpa-throw-1000189792)?

Yep, not quite the same but anything will do. They really are the Bee's patellas
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 02 December, 2022, 05:10:58 pm
i just keep remembering my parents had no central heating when we grew up, neither did their parents etc.

I claim exemption from this reasoning, on the basis that I wouldn't have lived if I'd been born before about 1976, and would therefore have been spared a lifetime of poor circulation in my hands and feet.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 02 December, 2022, 05:34:35 pm
i just keep remembering my parents had no central heating when we grew up, neither did their parents etc.

I claim exemption from this reasoning, on the basis that I wouldn't have lived if I'd been born before about 1976, and would therefore have been spared a lifetime of poor circulation in my hands and feet.
It's the same reasoning we all face, just means you have no experience of two parts of the trilemma: you can comply with Tory ideology (turn up the heating or be held responsible for black mould etc), be rich enough not to care about it, or fast-forward to an idyllic passivehouse future.

I can't remember precisely when I last saw ice (not frost) on the inside of the bedroom windows in the morning, but it was probably in the early 1980s. Definitely after 1976. By then I was definitely old enough to not find it fun.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 02 December, 2022, 05:59:44 pm

Yep, not quite the same but anything will do. They really are the Bee's patellas
Just bought one (https://www.amazon.co.uk/dp/B07VMTBV2Q/ref=pe_27063361_485629781_TE_item).
My house is benefitting (a little) from July's installation of double-glazed windows and last year's
extra 6 inches of loft insulation. But it's a pre-first-world-war house with no cavity wall insulation,
so is not as energy efficient as a modern house.
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 02 December, 2022, 06:07:51 pm
@Chez BP we is economisering.  (great new word btw :)  ) We lives in a detached, 3 storey, 4 bed Victorian built abode, we does, with all thee probs of single skin walls.  A few windows are DG, most are original sash with a secondary perspex sheet.  So we has the heating set  to 12 at night,  up to 15 from 8am to 9am, down to 13.5 all day, up to 14 at 4.30, and up to 15 at 6.30. Sometimes we come in and its c  o  l d, at about 5pm, so we crank it up to 16, which then automatically chops back to 15 at 6.30.  Dinner about 6.45 in time for CH4 news :), and then mug of T, and into the lifesavers.

Whilst watching a Scandi Noir, a while back, where it gets mighty cold, in peoples houses,I kept spotting lifesavers, so this winter we tried them. My goodness gracious me, why we never tried them before I'll never know.  Our daily TOTAL of energy at the mo, and it's pretty damp and chilly, is hovering around £7.  not too bad, and we are still over £1k in credit with EON.

What are 'lifesavers'? ,,,,,,,,,,,,,,well, there are blankets of course, for the sofa/chair.  If you never have, you REALLY must. Its a core heat thing, room can be 15 deg, but in your sofa snuggerie, you are as warm as, if not too warm, so that when you go and make a T in the cold kitchen, you actually don't notice its cold.  ;).

Also we has a de-humidifier, and we puts in the bedroom, and turns it on, about 1/2hr before bedtime, and shuts the door, it dries the room a bit and warms it up a bit, double whammy.

The thing is, were I to experiment with this and Mrs Ham, it might lead to a fatality. Mine.
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 02 December, 2022, 06:13:32 pm

Yep, not quite the same but anything will do. They really are the Bee's patellas
Just bought one (https://www.amazon.co.uk/dp/B07VMTBV2Q/ref=pe_27063361_485629781_TE_item).
My house is benefitting (a little) from July's installation of double-glazed windows and last year's
extra 6 inches of loft insulation. But it's a pre-first-world-war house with no cavity wall insulation,
so is not as energy efficient as a modern house.


Well done, only 1?,    do you live alone, OR snuggle up?  NO!!!!!!!!!!!!!!!! DO NOT ANSWER!!!!!!!!!!!!!!!!!!!!!!  A nice 'tipple' in the seettling in zne is a good idea. We are sat here , on the same Soofaa(Essex version),sharing a 'Lifesaver' and a G+T or 2, it's 15deg, we is 'happy as Larry, 'n warm as.......only prob is. who's cookin' da bacon pasta........ :thumbsup:
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 02 December, 2022, 06:22:30 pm
Top Tip,in such lifesaver mode'  raise one's feet off the floor, by whatever means, cozda floor ist cold !.   Merry snugglez! ;),
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 02 December, 2022, 06:34:04 pm
Slipper socks with those little bobbles of plastic moulded onto the sole are good at keeping feet warm. It's the sole that's important.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 02 December, 2022, 06:36:39 pm
Sadly my pair o' them fell apart last winter :'(
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 02 December, 2022, 06:45:29 pm
I think these are the ones I have, but other vendors as well as other, less Teutonic, makes are available: https://www.zalando.co.uk/falke-cosyshoe-slippers-black-fa154j000-q11.html
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 02 December, 2022, 07:11:22 pm
Mine were more like these: https://www.zalando.co.uk/falke-homepads-socks-grey-fa154j005-801.html
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 02 December, 2022, 07:30:25 pm
Anyone using a ceramic heater?
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 02 December, 2022, 07:42:44 pm
Anyone using a ceramic heater?

Just remember, your  own body is THEE most efficient  heater that exists.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 02 December, 2022, 07:56:32 pm

Anyone using a ceramic heater?


Just remember, your  own body is THEE most efficient  heater that exists.

Really? Every day is a school day (as they say).
(https://www.pistonheads.com/inc/images/read.gif)
Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 02 December, 2022, 08:07:07 pm
Whilst watching a Scandi Noir, a while back, where it gets mighty cold, in peoples houses,I kept spotting lifesavers, so this winter we tried them. My goodness gracious me, why we never tried them before I'll never know.  Our daily TOTAL of energy at the mo, and it's pretty damp and chilly, is hovering around £7.  not too bad, and we are still over £1k in credit with EON.

What are 'lifesavers'? ,,,,,,,,,,,,,,well, there are blankets of course, for the sofa/chair.  If you never have, you REALLY must. Its a core heat thing, room can be 15 deg, but in your sofa snuggerie, you are as warm as, if not too warm, so that when you go and make a T in the cold kitchen, you actually don't notice its cold.  ;).


I invested in a huge fleece blanket for the sofa a couple of months back - why didn't I do this years ago? :facepalm: Nice and snug on the sofa, no heating needed here yet. :thumbsup:
Title: Re: Home energy saving tips /ideas...
Post by: Jaded on 02 December, 2022, 10:40:33 pm
Anyone using a ceramic heater?

Just remember, your  own body is THEE most efficient  heater that exists.

Each body is equivalent to 01.kW I believe.
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 02 December, 2022, 11:07:51 pm
“”The Idea in Practice

The idea of transforming human body heat into electricity has been an ongoing process for scientists for years. In Sweden, for example, Stockholm Central Station uses heat exchanges to convert commuter body heat into hot water, which is then piped to an office building next door: an approach that can easily be replicated in shopping malls and supermarkets around the world. [4] Researchers have been attempting ways to power small devices, such as cellphones and laptops, when there is no conventional and accessible energy sources. At the University of Wisconsin, research engineers have created a shoe that utilizes reverse electrowetting to produce as much as a kilowatt of energy, just by simply taking a walk. [5]””
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 02 December, 2022, 11:14:38 pm
Electrowetting sounds horrible.

On a related note, did anyone else watch Outsiders this week, where Fatiha created hot stones with the power of her warm crevices?  :-X
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 03 December, 2022, 08:42:19 am
Anyone using a ceramic heater?

Just remember, your  own body is THEE most efficient  heater that exists.
Unlikely, since even a 3 bar fire is 100% efficient (it's just that 100% efficient at 4x the cost of gas is still expensive).

The human body is a very inefficient source of mechanical power, though; sit at 200W on a turbo trainer and see how quickly you, and the room, heat up.  I think it's about 20% efficient, probably worse at higher workloads.
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 03 December, 2022, 09:10:22 am
Yebbut, the 3 kw electric fire needs elastic trickery to work. Your body only needs you to feed it…anything, to work, and as a Brucey bonus, you get to stay alive. ;D  How efficient is that. The only reason we have heating in the first place, is to keep the body warm. I have read tales of folks hiking/ biking in Tibet and other such frozen places, and they got into the habit of eating fat, or butter as they went to bed, as the calorific burn was so great it kept them warm at night in their tents. Can’t actually vouch for this,tho.sounds ‘orribule.
Title: Re: Home energy saving tips /ideas...
Post by: JonBuoy on 03 December, 2022, 09:41:16 am
“”The Idea in Practice

The idea of transforming human body heat into electricity has been an ongoing process for scientists for years. In Sweden, for example, Stockholm Central Station uses heat exchanges to convert commuter body heat into hot water, which is then piped to an office building next door: an approach that can easily be replicated in shopping malls and supermarkets around the world. [4] Researchers have been attempting ways to power small devices, such as cellphones and laptops, when there is no conventional and accessible energy sources. At the University of Wisconsin, research engineers have created a shoe that utilizes reverse electrowetting to produce as much as a kilowatt of energy, just by simply taking a walk. [5]””

[5]  Nope!


It looks like this is a quote from coursework submitted by Lo'eau LaBonta for an Engineering degree at Stanford University back in 2014 (http://large.stanford.edu/courses/2014/ph240/labonta1/)

She is now a professional football player (https://en.wikipedia.org/wiki/Lo%27eau_LaBonta)...
Title: Re: Home energy saving tips /ideas...
Post by: DaveReading on 03 December, 2022, 09:57:57 am
At the University of Wisconsin, research engineers have created a shoe that utilizes reverse electrowetting to produce as much as a kilowatt of energy, just by simply taking a walk. [5]

That's absolute nonsense, and the citation says no such thing.
Title: Re: Home energy saving tips /ideas...
Post by: Asterix, the former Gaul. on 03 December, 2022, 11:40:25 am
 
Quote
the average adult has as much energy stored in fat as a one-ton battery.

Speak for yourself, mate.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 03 December, 2022, 11:55:34 am
i just keep remembering my parents had no central heating when we grew up, neither did their parents etc.

I claim exemption from this reasoning, on the basis that I wouldn't have lived if I'd been born before about 1976, and would therefore have been spared a lifetime of poor circulation in my hands and feet.

This. It *REALLY* pisses me off with the whole "but our parents didn't have central heating!"

No fucking shit they didn't, that's not a good thing! They also didn't have the massive amount of advanced technology and and incredible medical care available that we have now. Fetishising the past is a pointless exercise, esp when picking such single items from an arbitrary point in history. My parents grew up in a house with no central heating! great, you know what some of my ancestors grew up in houses with no window. They cooked on an open fire in the middle of the room, they slept on makeshift pallets on the floor, wrapped in cloaks and blankets, and one of the leading causes of death for women was child birth. Many didn't live to see their 10th birthday. So should we be getting rid of our insulated homes, and double glazing and electric cooking and going back to a hearth in the middle of the room (with no chimney!), or should we accept that just cos our parents grew up in bloody cold homes, WE SHOULDN'T HAVE TO. It's 2022. We have the technology to heat our homes incredibly efficiently, we have the technology to heat our homes incredibly cheaply, we have the technology to do so with incredibly low environmental impact. Yet for some reason society doesn't think this technology should be given to everyone.

Instead, we have people in power who are saying "Just turn the thermostat down and wear a jumper", as an excuse to not help each other to share in the wonders of the technology that we have. As a way to not compromise their inner selfish ideology.

FUCK THAT SHIT. It's 2022. We should all be warm, we should all have full bellies, we should all be happy.

J
Title: Re: Home energy saving tips /ideas...
Post by: Asterix, the former Gaul. on 03 December, 2022, 12:02:41 pm
My parents had central heating :smug:  It ran off coal that we had to bring from large concrete bunkers  (big enough to get inside, when they were empty) outside the back door. 
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 03 December, 2022, 02:19:00 pm
The former Mrs Z's parents had a similar monstrosity that ran on nutty slack and probably caused more pollution than Drax.  This was in 2003.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 03 December, 2022, 07:42:31 pm
Central heating. Pah. We didn’t have indoor plumbing and the nearest toilet was two angry dogs away. All this modern life coddling just turns people into big soft puddings. My gran took down a Luftwaffe bomber with nothing more than scorn.

I remember the morning, in my student house, when I attempted to assuage an Addlestone hangover by emptying a strategically placed bedside mug of water into my mouth. Nothing happened because the surface had iced over. My hungover brain stared at this predicament for too many moments and the ice broke. It woke me up, I suppose.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 04 December, 2022, 07:46:02 am
We did get ice on the inside of the window of our unheated student bathroom.  It was a cast-iron bath so you filled it with water at scalding temperature and the metal still felt cold on your arse as it sucked the heat away.
Title: Re: Home energy saving tips /ideas...
Post by: MikeFromLFE on 04 December, 2022, 08:28:01 am



This. It *REALLY* pisses me off with the whole "but our parents didn't have central heating!"
/snip/

FUCK THAT SHIT. It's 2022. We should all be warm, we should all have full bellies, we should all be happy.

Thank you for that rant, I've been trying to formulate something similar for days.

I'm 67 and grew up to the age of 12 in a house - well 3 rooms upstairs in a house - with no heating in the bathroom or bedroom. We shared the bathroom with the family downstairs, and all 4 of my family had the same bedroom.

Coal for the two fires had to lugged through the downstairs kitchen and upstairs. Shit from the fire went to the bins out the front door.
The rooms were never warm between autumn and spring.

The only hot water was from an explosive device - an Ascot boiler - above the kitchen sink. (No, nothing in the bathroom).

It was a shit way of living and I have zero intention of feeling cold for days on end in my own home again.
Anyone who thinks that anything like my childhood experience is in any way appealing can go sodomise themselves sideways with a coal scuttle.
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 04 December, 2022, 08:47:33 am



This. It *REALLY* pisses me off with the whole "but our parents didn't have central heating!"
/snip/

FUCK THAT SHIT. It's 2022. We should all be warm, we should all have full bellies, we should all be happy.

Thank you for that rant, I've been trying to formulate something similar for days.

I'm 67 and grew up to the age of 12 in a house - well 3 rooms upstairs in a house - with no heating in the bathroom or bedroom. We shared the bathroom with the family downstairs, and all 4 of my family had the same bedroom.

Coal for the two fires had to lugged through the downstairs kitchen and upstairs. Shit from the fire went to the bins out the front door.
The rooms were never warm between autumn and spring.

The only hot water was from an explosive device - an Ascot boiler - above the kitchen sink. (No, nothing in the bathroom).

It was a shit way of living and I have zero intention of feeling cold for days on end in my own home again.
Anyone who thinks that anything like my childhood experience is in any way appealing can go sodomise themselves sideways with a coal scuttle.

Hmm, quite a few  touchy people out there. Remind me to never get stuck on a desert island with any of them……No one said it was appealing, just a fact of life, good job you’re not in Kiev…….rolls eyes.
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 04 December, 2022, 08:52:46 am
Enough of this, I’m off to dig for coal under the North Sea, with a blunt tooth pick, hoping to back in time for tea.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 04 December, 2022, 09:31:32 am
Toothpick?  Luxury.

We had to mine anthracite using only our tongues, 25 hours a day.  We were too poor to have a fireplace so we had to light it in our cupped hands.
Title: Re: Home energy saving tips /ideas...
Post by: andyoxon on 04 December, 2022, 09:37:39 am
When I were a lad, in southern Africa, we had one electric bar heater for whole house.  Prior to this in Cheshire, parents didn't have CH either - happy with coal an that.   ;)
Title: Re: Home energy saving tips /ideas...
Post by: numbnuts on 04 December, 2022, 09:58:20 am
We had an Aga cooker and Aladdin paraffin heater, the Aga ran on coke, but later we had it converted to oil the cost now would be horrendous
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 04 December, 2022, 10:08:24 am
OOOoooooooo :o :o :o :o :o :o :o  Hot off the press!!!!!TopTip ALERT!!!!!!!!!!!!!!!!   From 'Economisering 4U'

Just been to the attic and retrieved one of our summer rotary fans, (on a 2ft pole, and rotates side to side)  Now our heating went off an hour ago,  and it was only on 15 deg anyway, but we have the old 'style' school radiators  downstairs, and they are still quite warm, due to the amount of water in them. So, I shuts thee door, then I places thee fan in thee corner of thee living room , I does,  next to the corner radiator, then i points it up at about 45 deg, puts it on low schpeed, and on rotate,.............................yipppeeeee!!!!!!!!!!!!!!!!!!  Sat here in a T shirt ;D ;D ;D

Well, TBH not quite, but it has made a con Sid er able improvement. ,  can't wait for t'heatin' to come bak on agin.  Schlippers, who needs 'em.
Title: Re: Home energy saving tips /ideas...
Post by: chrisbainbridge on 04 December, 2022, 10:51:51 am
The reality is that the insulation in British houses is so bad that we are simply burning gas to heat the outside air. If only a government had mandated decent housing standards 40 years ago.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 04 December, 2022, 10:53:08 am
Hmm, quite a few  touchy people out there. Remind me to never get stuck on a desert island with any of them……No one said it was appealing, just a fact of life, good job you’re not in Kiev…….rolls eyes.

Why accept it as a fact of life? Why not try to make improvements so it's not so cold? And yes, I'm very grateful I don't live in a warzone.

As for the desert island. If we need heating on a desert island, one would have to question what we did wrong... But hey, I don't have hobbies, I have apocalypse survival skill...

J
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 04 December, 2022, 11:01:09 am
The reality is that the insulation in British houses is so bad that we are simply burning gas to heat the outside air. If only a government had mandated decent housing standards 40 years ago.

Yep. We've known about the principles of Passivhaus designs since the 70's, to not have built to those principles in the last 20 years at least is gross negligence of the house builders. It's compounded by the fact that council planning officials are more concerned with houses fitting in with those near by, than in the houses being environmentally sustainable.

The government then compound the problem by reacting to Insulate Britain protesters in completely the wrong way. The UK has the worst insulated housing stock in northern Europe, and short of a massive replacement program of a lot of the housing stock, we're unlikely to get anywhere with improving that any time soon. Planning means we can't easily add external insulation, and the tiny hovels that are unfortunately the lower end stock in much of Britain would be horrible if you made ever room 400mm smaller on each dimension to add insulation inside the room. This is something we are going to have to come to terms with in the next decade or so. Do we go for a mass rebuild of our old housing stock? a mass retrofit to the outer envelope?

At the very least all new homes and offices need to be built to passivhaus principles. There really is no excuse.

Thank you for that rant, I've been trying to formulate something similar for days.

I'm 67 and grew up to the age of 12 in a house - well 3 rooms upstairs in a house - with no heating in the bathroom or bedroom. We shared the bathroom with the family downstairs, and all 4 of my family had the same bedroom.

Coal for the two fires had to lugged through the downstairs kitchen and upstairs. Shit from the fire went to the bins out the front door.
The rooms were never warm between autumn and spring.

The only hot water was from an explosive device - an Ascot boiler - above the kitchen sink. (No, nothing in the bathroom).

It was a shit way of living and I have zero intention of feeling cold for days on end in my own home again.
Anyone who thinks that anything like my childhood experience is in any way appealing can go sodomise themselves sideways with a coal scuttle.


Exactly.

For anyone curious you can get a 3.9kw air source heat pump that has a COP of about 3.9, for about 800 quid. Plus another couple of hundred quid for installation. The technology is coming down a lot in price.

J
Title: Re: Home energy saving tips /ideas...
Post by: road-runner on 04 December, 2022, 12:23:57 pm
… good job you’re not in Kiev.

Friends on the outskirts of Kyiv have a log fire in their house and cook using that. Electricity supply is erratic, gas and water non-existant. They hand draw water from a neighbour’s well.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 04 December, 2022, 12:34:12 pm
We did get ice on the inside of the window of our unheated student bathroom.  It was a cast-iron bath so you filled it with water at scalding temperature and the metal still felt cold on your arse as it sucked the heat away.

We never tried using the bath or shower owing to the bag of cement that had set in it, plus even in summer, it was baltic in there. There were hot showers and baths in the student union a few minutes away. My student years were heated by those three-bar electric fires, which were super-toasty but about 3 femtoseconds after turning it off, you were back down to near absolute zero. They ate fifty pence pieces at such a rate we had to break the meter and recycle them (this was partly revenge for the landlord's son robbing us).

The other place had a gas heater, the sort that makes you sleepy, but then it ran out of gas and we didn't have enough money for a refill. We basically hibernated in the library during the day and pub during the evenings.
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 04 December, 2022, 01:42:34 pm
My student days were also heated by 3 bars.............the 'Bell and Crown', Bishops Finger, and 'Olive Branch'  ;)

Oh, and my girlfriends parents had.............................CH.. :o
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 04 December, 2022, 04:57:48 pm
Hmm, quite a few  touchy people out there. Remind me to never get stuck on a desert island with any of them……No one said it was appealing, just a fact of life, good job you’re not in Kiev…….rolls eyes.

Why accept it as a fact of life? Why not try to make improvements so it's not so cold? And yes, I'm very grateful I don't live in a warzone.

As for the desert island. If we need heating on a desert island, one would have to question what we did wrong... But hey, I don't have hobbies, I have apocalypse survival skill...

J
It's a fact of history, quite recent history – yes even within your lifetime! – and probably of the near future too.

As for desert islands, surely they all come equipped with a wind-up gramophone but only eight discs?
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 04 December, 2022, 05:01:40 pm
I was speaking to some friends yesterday, ruffty tuffty outdoor types, with no kids or elderly people. They also have a pretty well insulated house  They said a couple of years ago, they went a whole winter without heating at all. It never got below 16C indoors, which they were comfortable with. But they've never repeated this because by spring the walls were covered in black mould. They bought a dehumidifier and now burn a few logs in the winter, which keeps them comfortable and the house healthy too.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 04 December, 2022, 05:05:10 pm
The former Mrs Z's parents had a similar monstrosity that ran on nutty slack and probably caused more pollution than Drax.  This was in 2003.
Sounds very Viz.
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 04 December, 2022, 05:06:54 pm
We've known about the principles of Passivhaus designs since the 70's, to not have built to those principles in the last 20 years at least is gross negligence of the house builders.

A housing companies first responsibility is to it's shareholders, spending more on each house built than the absolute minimum would be gross negligence - welcome to capitalism.  Much as I loathe the average council employee I find it hard to point the finger of blame there either as building companies have far better funded lawyers to fight at appeal.  Nope, the blame lies with central government.  All of them in the last 50 ish years regardless of the colour of tie they wore.
Title: Re: Home energy saving tips /ideas...
Post by: chrisbainbridge on 04 December, 2022, 05:45:00 pm
I agree totally soretween.  Part of the job of government should be to look forward and to take the hard decisions on behalf of all of us.
Title: Re: Home energy saving tips /ideas...
Post by: Blodwyn Pig on 04 December, 2022, 07:31:01 pm
OOOoooooooo :o :o :o :o :o :o :o  Hot off the press!!!!!TopTip ALERT!!!!!!!!!!!!!!!!   From 'Economisering 4U'

Just been to the attic and retrieved one of our summer rotary fans, (on a 2ft pole, and rotates side to side)  Now our heating went off an hour ago,  and it was only on 15 deg anyway, but we have the old 'style' school radiators  downstairs, and they are still quite warm, due to the amount of water in them. So, I shuts thee door, then I places thee fan in thee corner of thee living room , I does,  next to the corner radiator, then i points it up at about 45 deg, puts it on low schpeed, and on rotate,.............................yipppeeeee!!!!!!!!!!!!!!!!!!  Sat here in a T shirt ;D ;D ;D

Well, TBH not quite, but it has made a con Sid er able improvement. ,  can't wait for t'heatin' to come bak on agin.  Schlippers, who needs 'em.

Following on from this, we've been out, come home, put heating on, had dinner and pud, now nearly 7.30, (heating been on 2 hrs on and off as set to 15 deg, ) we recently turned it down , so the thermostat is now on 14.5 deg, with this oscillating fan on,  and we are in our lifesavers, and i can honestly say, i'm thinking of taking my jumper off, (but staying undercover). Truly wonderful, Oh and we turned our boiler temp down to 62deg, so it is most efficient, but stays on longer. Our smart meter is now just short of £8 combined, BUT we are as warm as.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 04 December, 2022, 09:06:09 pm
Hot water bottles. https://www.lowtechmagazine.com/2022/01/the-revenge-of-the-hot-water-bottle.html
We know about them because we're BRITISH but apparently Americans don't. Nevertheless, some ideas there, such as using one in a backpack. I suppose it would be a handy use for a CamelBack in winter.  :o
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 04 December, 2022, 10:54:55 pm
It's a fact of history, quite recent history – yes even within your lifetime! – and probably of the near future too.

Yes, same as it's fact that right now children go to bed cold and hungry in the UK. One of the richest countries on the planet.

It's fundamentally wrong.

We should all be warm, we should all be well fed, we should all be comfortable.


A housing companies first responsibility is to it's shareholders, spending more on each house built than the absolute minimum would be gross negligence - welcome to capitalism.  Much as I loathe the average council employee I find it hard to point the finger of blame there either as building companies have far better funded lawyers to fight at appeal.  Nope, the blame lies with central government.  All of them in the last 50 ish years regardless of the colour of tie they wore.

Then maybe we shouldn't be putting shareholder value and profit first.

(https://pbs.twimg.com/media/B5-lDJWCUAAwfya.jpg)

I agree totally soretween.  Part of the job of government should be to look forward and to take the hard decisions on behalf of all of us.

Exactly. Maybe even going so far as for the government to be building the homes.


Following on from this, we've been out, come home, put heating on, had dinner and pud, now nearly 7.30, (heating been on 2 hrs on and off as set to 15 deg, ) we recently turned it down , so the thermostat is now on 14.5 deg, with this oscillating fan on,  and we are in our lifesavers, and i can honestly say, i'm thinking of taking my jumper off, (but staying undercover). Truly wonderful, Oh and we turned our boiler temp down to 62deg, so it is most efficient, but stays on longer. Our smart meter is now just short of £8 combined, BUT we are as warm as.

I have also got a fan going to fix the thermocline in my flat. It's made a significant improvement.

A question for you in your home that's 7°C colder than mine. Are you able to do anything other than snuggle on the sofa? My flat is also a workshop, I make things, using my hands, Things I can't do with gloves on.

J
Title: Re: Home energy saving tips /ideas...
Post by: barakta on 05 December, 2022, 12:40:30 am
Similar to disability accessibility standards in homes. 60% of councils have zero accessibility requirements. 1 in 55 people use a wheelchair full or part time, yet it's almost impossible to find a wheelchair accessible property to buy or rent without massive adaptation costs. Grants for adaptation take years to come through and are heavily means tested, despite the fact the costs are single and double digit thousands for various adaptations, so even working disabled folk probably can't afford it.

There was also a point where the large housing builder companies decided that if they were required by a council to build like 4% accessible or "easy to adapt" houses, they'd rather sue the councils because that was only a guideline not law, so the councils were "unfaiiir wah wah" and so the councils who couldn't afford such good lawyers, all caved...

Fucking Tories. We should have been building accessible and eco housing since the 70s and just haven't.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 05 December, 2022, 07:53:10 am
In a normal year, 20-25% of Tory donations come from property developers or landlords.  There is a lot of pressure to keep building the same old crap for stellar profits.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 05 December, 2022, 08:51:15 am
It's a fact of history, quite recent history – yes even within your lifetime! – and probably of the near future too.

Yes, same as it's fact that right now children go to bed cold and hungry in the UK. One of the richest countries on the planet.

It's fundamentally wrong.

We should all be warm, we should all be well fed, we should all be comfortable.


We should but it's a fact that we're not.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 05 December, 2022, 12:14:29 pm
In a normal year, 20-25% of Tory donations come from property developers or landlords.  There is a lot of pressure to keep building the same old crap for stellar profits.

It always make me laugh when developers claim that if they have to do something, like, oh put in ramp, their development will no longer be profitable. All these big developer make profits so large they're embarrassing, and role in the constant largesse of government (help to buy etc. are little more than financial transfers from taxpayers to developers).
Title: Re: Home energy saving tips /ideas...
Post by: rafletcher on 05 December, 2022, 12:24:08 pm
1/3 cost the plot, 1/3 cost the house, 1/3 profit used to be the rule of thumb.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 05 December, 2022, 12:32:28 pm
Given the quality of the new builds we saw the last time around (eight years ago now), I doubt many of those houses will last 25 years. Dreadful. (We looked at new builds because our last place was one, but that was from one of the few remaining small, bespoke developers – and we were impressed with the quality, but really that doesn't translate to Bellway etc.)
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 05 December, 2022, 05:50:09 pm
(click to show/hide)
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 05 December, 2022, 05:58:07 pm
The eco homes that have been built in any quantity here aren't exactly trailblazers.  This is the UK, where corners are cut and regs ignored where possible in the pursuit of profit.

https://www.swindonadvertiser.co.uk/news/9778336.residents-raise-list-of-problems-with-grand-design-mans-housing/

The developers blamed the builders, possibly correctly.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 05 December, 2022, 06:06:44 pm
I've installed a Thing which I think was originally a thick bedspread on the Grand Escalier, in the hope that any stray therms that wander out into the hall don’t immediately flee up the stairwell and cower where can they do no good at all.

With pegs.
Title: Re: Home energy saving tips /ideas...
Post by: Jurek on 05 December, 2022, 06:31:57 pm
I've installed a Thing which I think was originally a thick bedspread on the Grand Escalier, in the hope that any stray therms that wander out into the hall don’t immediately flee up the stairwell and cower where can they do no good at all.

With pegs.

Pictures.
Without pictures this post is meaningless.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 05 December, 2022, 06:54:27 pm
It's dark out there!
Title: Re: Home energy saving tips /ideas...
Post by: Jurek on 05 December, 2022, 06:59:46 pm
It's dark out there!
Get out there, man.
Light a fire.
Or something.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 05 December, 2022, 07:01:02 pm
Oh, alright!

(https://live.staticflickr.com/65535/52544945526_9d3c71747f_c.jpg) (https://flic.kr/p/2o4dzEE)
Made in England… (https://flic.kr/p/2o4dzEE) by Mr Larrington (https://www.flickr.com/photos/mr_larrington/), on Flickr

(https://live.staticflickr.com/65535/52545490598_7ab23cae1f_c.jpg) (https://flic.kr/p/2o4gnGs)
…with pegs! (https://flic.kr/p/2o4gnGs) by Mr Larrington (https://www.flickr.com/photos/mr_larrington/), on Flickr
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 05 December, 2022, 08:40:02 pm
Ah, a Native American birthing blanket.
Title: Re: Home energy saving tips /ideas...
Post by: Adam on 05 December, 2022, 08:55:53 pm
“”The Idea in Practice

The idea of transforming human body heat into electricity has been an ongoing process for scientists for years. In Sweden, for example, Stockholm Central Station uses heat exchanges to convert commuter body heat into hot water, which is then piped to an office building next door: an approach that can easily be replicated in shopping malls and supermarkets around the world. [4] Researchers have been attempting ways to power small devices, such as cellphones and laptops, when there is no conventional and accessible energy sources. At the University of Wisconsin, research engineers have created a shoe that utilizes reverse electrowetting to produce as much as a kilowatt of energy, just by simply taking a walk. [5]””

Sounds like a remake of The Matrix.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 05 December, 2022, 09:11:11 pm
(https://live.staticflickr.com/65535/52545490598_7ab23cae1f_c.jpg) (https://flic.kr/p/2o4gnGs)
…with pegs! (https://flic.kr/p/2o4gnGs) by Mr Larrington (https://www.flickr.com/photos/mr_larrington/), on Flickr

Isn't that going to interfere with the operation of the bell when you next summon a servant?
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 05 December, 2022, 09:16:04 pm
(https://live.staticflickr.com/65535/52545490598_7ab23cae1f_c.jpg) (https://flic.kr/p/2o4gnGs)
…with pegs! (https://flic.kr/p/2o4gnGs) by Mr Larrington (https://www.flickr.com/photos/mr_larrington/), on Flickr

Isn't that going to interfere with the operation of the bell when you next summon a servant?
Presumably there's an array of servants kept in waiting, affixed to the washing line thing by further tactical clothes pegs attached to one ear. Stops them wandering too far.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 05 December, 2022, 11:59:14 pm
(https://live.staticflickr.com/65535/52545490598_7ab23cae1f_c.jpg) (https://flic.kr/p/2o4gnGs)
…with pegs! (https://flic.kr/p/2o4gnGs) by Mr Larrington (https://www.flickr.com/photos/mr_larrington/), on Flickr

Isn't that going to interfere with the operation of the bell when you next summon a servant?

Got an app* for that!

* Lie
Title: Re: Home energy saving tips /ideas...
Post by: T42 on 06 December, 2022, 07:55:51 am
(https://live.staticflickr.com/65535/52545490598_7ab23cae1f_c.jpg) (https://flic.kr/p/2o4gnGs)
…with pegs! (https://flic.kr/p/2o4gnGs) by Mr Larrington (https://www.flickr.com/photos/mr_larrington/), on Flickr

Wish we had a heated steering-wheel.
Title: Re: Home energy saving tips /ideas...
Post by: ScumOfTheRoad on 06 December, 2022, 08:11:58 am
Similar to disability accessibility standards in homes. 60% of councils have zero accessibility requirements. 1 in 55 people use a wheelchair full or part time, yet it's almost impossible to find a wheelchair accessible property to buy or rent without massive adaptation costs. ....
Fucking Tories. We should have been building accessible and eco housing since the 70s and just haven't.
Well said Barakta. Mrs Scum and I live in a block which has flat access and lifts. There is no flat access to the gardens. I asked management company to open doors to garden and put in  ramp. Was fobbed off with "when block was built there were no requirements to have access"

Title: Re: Home energy saving tips /ideas...
Post by: barakta on 06 December, 2022, 11:14:58 am
Doesn't surprise me Scum. Disabled people aren't allowed to have nice things like access to the garden... There's limited legal protection in this area, probably cos building developers keep lobbying against it even though the costs-at-build are fractions of a %.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 06 December, 2022, 06:13:22 pm
v2.0 of the Interfloor Access Insulativity Improvementising Module* may incorporate safety pins.

* This Unit gratefully acknowledges the assistance of Mr Ron Dennis in the Naming of Part
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 07 December, 2022, 07:19:41 am
Can't you get a dwarf to do it?  You know, one of the chaps that normally serve marching powder on silver salvers when you have people round?
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 07 December, 2022, 09:10:12 pm
What are 'lifesavers'? 
It (https://www.amazon.co.uk/dp/B07VMTBV2Q/ref=pe_27063361_485629781_TE_item) arrived and it's smothering me. I'm impressed. Mind you, I'm also layered-up and wearing
a fleece jacket, wooly hat and scarf.
Title: Re: Home energy saving tips /ideas...
Post by: Jurek on 07 December, 2022, 09:18:02 pm
What are 'lifesavers'? 
It (https://www.amazon.co.uk/dp/B07VMTBV2Q/ref=pe_27063361_485629781_TE_item) arrived and I'm wrapped in it. I'm impressed. Mind you, I'm also layered-up and wearing
a fleece jacket, wooly hat and scarf.
Crikey!
How cold is it where you are? West Country, yes?
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 07 December, 2022, 09:19:15 pm
What are 'lifesavers'? 
It (https://www.amazon.co.uk/dp/B07VMTBV2Q/ref=pe_27063361_485629781_TE_item) arrived and I'm wrapped in it. I'm impressed. Mind you, I'm also layered-up and wearing
a fleece jacket, wooly hat and scarf.
Crikey!
How cold is it where you are? West Country, yes?
Centre for the Cotswolds.
Title: Re: Home energy saving tips /ideas...
Post by: Andrew Br on 07 December, 2022, 09:55:22 pm
One thing it might be worth doing if it's freezing where you are tonight:-
Fill a bottle/Tupperware/whatever with water and stick it outside overnight.
In the morning, if the water has frozen, stick it into the fridge.
As it defrosts (changes phase) it'll take in energy (heat) and cool the fridge down so the compressor has to run less.

I used to do something similar when I worked for Abel and Cole.
They used ice packs to keep food cool.
We used to collect them and all the other packaging to re-use/recycle (we got paid extra for the returns).
Often the ice packs were still frozen so I used to take them home and put them in the fridge until they defrosted then take them into work to go into the re-use stream.
I can't quantify any savings but I was aware that the fridge "ran" less.

It makes me wonder if freezing a bottle of water overnight (I'm on Economy 7 or whatever it's called these days) and putting it in the fridge during the day would also give savings (financial) on the electricity bill.

Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 08 December, 2022, 08:13:46 pm
One thing it might be worth doing if it's freezing where you are tonight:-
Fill a bottle/Tupperware/whatever with water and stick it outside overnight.
In the morning, if the water has frozen, stick it into the fridge.
As it defrosts (changes phase) it'll take in energy (heat) and cool the fridge down so the compressor has to run less.

Well I've turned the fridge off, as the cupboard against the outside wall stays cold enough to keep stuff chilled.

I have put a bottle of vodka outside to get properly chilled, and it's got a nice layer of frost over it right now :-)
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 08 December, 2022, 08:47:32 pm
We have some ice packs which came with food deliveries sitting on the table in the yard.  If they are frozen in the morning I might just stuff a few in the fridge and in the freezer and see what gives.

Nothing ventured ...
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 08 December, 2022, 09:12:26 pm
Nothing ventured ...

As they say, look after the pennies... but that's all it will save. Fridges don't use a lot of electricity* in the scheme of things.

What's more the heat coming out the back heats the kitchen. So bringing in some cold from outside reduces the work the fridge does but increases the work your heating needs to do. So taking your kitchen as a whole, you've added some extra cold. As my old physics teacher used to pose as a thought experiment: if you leave your fridge door open, does your kitchen get colder or hotter? Jerry Cornelius could answer that.



* The reason I've switched mine off is because the solar panels are struggling to produce tens of Wh per day with the sun so low, not enough to run the fridge 24/7
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 09 December, 2022, 01:02:29 pm
Nothing ventured ...

As they say, look after the pennies... but that's all it will save. Fridges don't use a lot of electricity* in the scheme of things.

What's more the heat coming out the back heats the kitchen. So bringing in some cold from outside reduces the work the fridge does but increases the work your heating needs to do. So taking your kitchen as a whole, you've added some extra cold. As my old physics teacher used to pose as a thought experiment: if you leave your fridge door open, does your kitchen get colder or hotter? Jerry Cornelius could answer that.

Glad I wasn't the only one doing that maths...

The only way this would make any sense is if you were going out anyway, so you put the ice packs outside as you go out anyway, and then bring them in when you return. If you make a special opening and closing of the door for it, you will lose more heat than you save energy.

J
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 10 December, 2022, 08:44:55 pm
https://theconversation.com/how-to-stay-warm-when-youre-working-from-home-without-turning-the-heating-on-195250
Heat the person not the room, hands and feet are very important, wear a hat, cut down draughts, ect.
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 10 December, 2022, 09:11:43 pm
I've been quite impressed by our solar panel in the past few days. Despite it being December and frosty pretty well all day, the sun has heated the water tank to almost 30°C.
Title: Re: Home energy saving tips /ideas...
Post by: rafletcher on 11 December, 2022, 12:05:05 pm
Our heating is struggling these last couple of days. As in, struggling to maintain the internal temp at 17.5C despite the boiler being turned up to max (and evidenced by the temp of the radiators, which are toasty) Our uninsulated 1840’s solid brick end of terrace gable end is doing a fine job of keeping the frost down on our neighbour’s car!  All our rooms have 2 if not 3 exterior walls too, and the 1970’s extension isn’t that well insulated either. Hey ho.
Title: Re: Home energy saving tips /ideas...
Post by: Jurek on 11 December, 2022, 12:49:51 pm
I have Venetian blinds on the draughty Victorian sash windows in three of the rooms in my place.
Ordinarily, I have the slats adjusted to allow maximum light to enter the rooms.
This has the disadvantage of allowing the maximum amount of heat to leave the room.
A couple of nights ago I tipped the slats in the opposite direction, and closed them.
When I woke up the following morning I thought to myself 'Bollocks! I've left the heating on overnight again.'
It was remarkable how much heat had been retained overnight, simply by twisting the slats in the opposite direction.
Usually, my place is weapon's grade Baltic first thing in the morning.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 12 December, 2022, 11:44:51 am
https://www.thedailymash.co.uk/news/lifestyle/owners-of-massive-open-plan-grand-designs-style-house-fking-freezing-20221212229123

 ;D
Title: Re: Home energy saving tips /ideas...
Post by: campagman on 14 December, 2022, 09:14:13 pm
Just watched a Youtube clip about cleaning the dust from behind the radiators. Why have I never done this?
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 14 December, 2022, 09:18:09 pm
Just watched a Youtube clip about cleaning the dust from behind the radiators. Why have I never done this?

Because there are two ways to clean dust from behind radiators:  One involves an air compressor and quite a lot of mess.  The other is for people with far too much time on their hands.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 14 December, 2022, 09:20:18 pm
My, it's cold out.  I have been out since 5 and the indoor temperature has dropped by more than 1oC an hour.  At that rate, it will be below 10oC in the morning.  Obviously it won't, as the temperature differential narrows, but 13oC is likely.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 14 December, 2022, 09:40:14 pm
Just watched a Youtube clip about cleaning the dust from behind the radiators. Why have I never done this?

Because there are two ways to clean dust from behind radiators:  One involves an air compressor and quite a lot of mess.  The other is for people with far too much time on their hands.

That's what radiator cleaning brushes are for.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 14 December, 2022, 09:41:01 pm
Just watched a Youtube clip about cleaning the dust from behind the radiators. Why have I never done this?

Because there are two ways to clean dust from behind radiators:  One involves an air compressor and quite a lot of mess.  The other is for people with far too much time on their hands.

That's what radiator cleaning brushes are for.

Sod that.  I've got a bicycle.  (See also: Gardening)
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 14 December, 2022, 09:45:48 pm
In my defence, it was other people's grot I was trying to get rid of. I probably won't care so much once it's my own.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 14 December, 2022, 10:12:48 pm
My, it's cold out.  I have been out since 5 and the indoor temperature has dropped by more than 1oC an hour.  At that rate, it will be below 10oC in the morning.  Obviously it won't, as the temperature differential narrows, but 13oC is likely.

It was 5.6° indoors when I got up this morning, and 2.4° when I got back from work. Only just managed to bring the temp up to something reasonable.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 15 December, 2022, 06:42:55 am
It was 13.1 in the end.

I'm in the office today so (unusually) the CH rather than the stove is on.  It's probably costing £1.50/hour running up from cold.  The condensate drain is badly placed but shouldn't freeze in a couple of hours' running.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 15 December, 2022, 09:12:18 am
My, it's cold out.  I have been out since 5 and the indoor temperature has dropped by more than 1oC an hour.  At that rate, it will be below 10oC in the morning.  Obviously it won't, as the temperature differential narrows, but 13oC is likely.

It was 5.6° indoors when I got up this morning, and 2.4° when I got back from work. Only just managed to bring the temp up to something reasonable.
Do you live in a tent?
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 15 December, 2022, 09:36:03 am
My, it's cold out.  I have been out since 5 and the indoor temperature has dropped by more than 1oC an hour.  At that rate, it will be below 10oC in the morning.  Obviously it won't, as the temperature differential narrows, but 13oC is likely.

It was 5.6° indoors when I got up this morning, and 2.4° when I got back from work. Only just managed to bring the temp up to something reasonable.
Do you live in a tent?
I don't live in a tent, except on holiday, but where I do live there is no heating in the kitchen. At all.* I made the mistake of going in there barefoot about 9 o'clock and the floor was painful. The air temperature must be below 5 and the floor must be close to zero.

*This was meant to be temporary. Like a tent.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 15 December, 2022, 10:49:20 am
Is there such a thing as a system that:
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 15 December, 2022, 10:52:56 am
Is there such a thing as a system that:
  • Replaces the thermostat with a gadget that
  • Communicates via the Devil’s Radio with a temperature sensor located somewhere sensible, and
  • Sends on/off instructions to the boiler over the existing Anbaric String, and
  • Doesn't require Kimlike Powers to install?

Our Hive does that. The temp sensor is battery powered and can be moved (also, you can control it via a knob, rather than just an app).

Installation was pretty simple. Replace existing boiler control, usually on a wall, with the hive box (wiring is identical, you can photo the existing wiring and just put them in same place in the hive).

Cudzo and PO's descriptions of their living spaces make me appreciate my house more. I haven't had to put up with cold like they described since I moved off a boat.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 15 December, 2022, 11:14:30 am
I have discovered that despite the air temperature at head height being a nice comfy 18c, there's a howling gale going around my feet under the desk.
I had a shufty around with a surface thermometer and found the carpet temp is more like 16 under there and the skirting board is similarly cold, however that's not going to find me the source of the gale.

I suspect it's the tiny gap between skirting boards and the chip board slabs that make up the flooring below the carpet, and the tiny gaps between said chip board (it's probably not chip board I'd fall right through that)

Any ideas on how to confirm and seal?

I do know where the gale in the kitchen comes from as I found a massive hole in the plaster board when I was trying to find out why there was mouse shit in with my pans.
Title: Re: Home energy saving tips /ideas...
Post by: rafletcher on 15 December, 2022, 11:25:34 am
Is there such a thing as a system that:
  • Replaces the thermostat with a gadget that
  • Communicates via the Devil’s Radio with a temperature sensor located somewhere sensible, and
  • Sends on/off instructions to the boiler over the existing Anbaric String, and
  • Doesn't require Kimlike Powers to install?

Yep, a wireless digital thermostat is your friend, like tgis one..

https://www.plumbnation.co.uk/site/honeywell-dt92e-wireless-digital-room-thermostat/

The receiver is meant to be close to the boiler, but that's for aesthetics really, it can just repace your existing wall stat that takes 2 wire 240V.

Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 15 December, 2022, 11:28:50 am
Yes, I got a wireless stat fitted in the old Pingu Towers where there had been no stat at all. The receiver was under the boiler and I moved the stat depending on whether we were using the wood stove or not. Twas also a Honeywell.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 15 December, 2022, 11:37:52 am
I have discovered that despite the air temperature at head height being a nice comfy 18c, there's a howling gale going around my feet under the desk.
I had a shufty around with a surface thermometer and found the carpet temp is more like 16 under there and the skirting board is similarly cold, however that's not going to find me the source of the gale.

I suspect it's the tiny gap between skirting boards and the chip board slabs that make up the flooring below the carpet, and the tiny gaps between said chip board (it's probably not chip board I'd fall right through that)

Any ideas on how to confirm and seal?

I do know where the gale in the kitchen comes from as I found a massive hole in the plaster board when I was trying to find out why there was mouse shit in with my pans.

I think you're going to need to pull back the carpet. Pretty sure you can get cork strips for just such a thing. Or this foam https://www.draughtex.co.uk/how-to-fill-skirting-board-gaps
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 15 December, 2022, 11:45:48 am
hm, The gaps look small enough that I'd need to get feeler gauges out to find out how small
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 15 December, 2022, 11:51:11 am
Probably caulk is your friend then. Is it a draught or do you just need the underfloor insulating?
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 15 December, 2022, 12:13:34 pm
underfloor insulation would be nice but i should have done that before moving all my stuff in

due to lack of a feeler gauge I have used the next best thing. post it notes.
6 of, so around 1mm

There's also the spiky bastard things holding the carpet down.

Interestingly of the 3 carpeted rooms the office (where the draught is) has underlay, the living room has underlay, and the bedroom has cheap shit carpet slapped down in place with nothing to grip it.
this of course means I can easily check to see how well stuck together the big sheets of wood-like board are and I can't feel a draught through it.
Title: Re: Home energy saving tips /ideas...
Post by: Jaded on 15 December, 2022, 12:44:44 pm
Is there such a thing as a system that:
  • Replaces the thermostat with a gadget that
  • Communicates via the Devil’s Radio with a temperature sensor located somewhere sensible, and
  • Sends on/off instructions to the boiler over the existing Anbaric String, and
  • Doesn't require Kimlike Powers to install?

We use Hive.

Plus it has a simple record of temperatures, so I know that it was 12.5 degrees here this morning.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 15 December, 2022, 01:11:23 pm
Yes, I got a wireless stat fitted in the old Pingu Towers where there had been no stat at all. The receiver was under the boiler and I moved the stat depending on whether we were using the wood stove or not. Twas also a Honeywell.

$gasman recently replaced our Not-a-Honeywell wireless stat with a much posher Honeywell, on the basis that the old one was "crap"[1].  The new one does all the usual timery stuff as well, so you can program different temperature set points for different times of day, and comes with a little stand so you can carry it from room to room as well as the wall bracket.  Which I reckon is about peak heating control functionality without going internet-of-shit. 

Not that we're actually using it.  We're controlling the heating with a Shelly Plus 1 concealed in the junction box behind the receiver.

And that's the thing, controlling BRITISH heating is usually[2] a matter of closing a switch, so pretty much anything is a drop-in replacement.


[1] To be fair, I think the receiver was in the early stages of capacitor rot, as it tended to play dead for a while after being deprived of power.
[2] Unless you've got a recent posh boiler that speaks OpenTherm[3]
[3] Some sort of cursed serial protocol that allows the controller to twiddle the boiler's flow temperature setpoint for shits and giggles.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 15 December, 2022, 01:20:21 pm
..this foam https://www.draughtex.co.uk/how-to-fill-skirting-board-gaps (https://www.draughtex.co.uk/how-to-fill-skirting-board-gaps)
Highly recommended. I wish I had discovered it to fill the gaps in my downstairs floorboards instead of caulk.
Upstairs ok with draughtex though.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 15 December, 2022, 01:22:01 pm
I like Hive, it's simple and functional, I can change the temperature with my watch or phone (or Alexa, though I don't trust her not to mishear 20 degrees as 200 and cook me). Or you can twist the dial on the portable controller if you want to be old skool.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 15 December, 2022, 01:24:23 pm
Got a Honeywell T9R which is a bit annoying as the R means it's got a stand and I can't be arsed figuring out ways of getting it to sit on a wall out the way.
Also although connected to Wi-Fi it doesn't have batteries so isn't very portable.
The app is rather functional and the geo-location doesn't work with modern phones that like turning location off, but given I need the heating to fire up when I'm 20 miles away in order to get the house comfortable for my arrival and I work 19.98 miles away I just use the scheduler and over rule it with a minimum of 10c when I'm proper out.
Alexa can apparently be taught how to speak to it but given Alexa only just managed "Turn on PC" and can't do "Turn on HiFi" or "Turn on Telly" without asking me what I mean ah hink ahve foond ger limit eh.


Had a scope around with thermometer at lunch, the ethernet port faceplate is at 12c, the radio aerial outlet next to it is also at 12c, the 2 gang power socket is at 15, the plaster board next to them is at 15, the power socket has been painted in, the other 2 have not, hm.
The plaster board above the desk is at 18, head height 19, and drops down to 15 at skirting level.

Wonder if I should just put the room thermostat on the floor, the smart meters are buggerd anyway so I can't see the impending fright coming. (Except i've discovered I can see my leccy bill on that meter)
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 15 December, 2022, 01:32:15 pm
Had a scope around with thermometer at lunch, the ethernet port faceplate is at 12c, the radio aerial outlet next to it is also at 12c, the 2 gang power socket is at 15, the plaster board next to them is at 15, the power socket has been painted in, the other 2 have not, hm.

Plug fuses get warm when they're in use (obviously proportional to the current being drawn), which might have something to do with it?
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 15 December, 2022, 02:05:03 pm
yeah could do, the drop between plaster board and plastic of an unused socket on the internal wall is 0.2c
The ones I was measuring earlier are against the fire break between the 2 houses so there's a whack of concrete behind the frame.
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 15 December, 2022, 02:28:43 pm
Plug fuses get warm when they're in use (obviously proportional to the current being drawn), which might have something to do with it?
Point of order, m'lud.  Temperature rise is proportional to the square of the current drawn.
Title: Re: Home energy saving tips /ideas...
Post by: toontra on 15 December, 2022, 02:49:20 pm
I like Hive, it's simple and functional, I can change the temperature with my watch or phone (or Alexa, though I don't trust her not to mishear 20 degrees as 200 and cook me). Or you can twist the dial on the portable controller if you want to be old skool.

The best thing about Hive is the ability to control remotely using the app.  No more panic if you leave on holiday and can't remember if you've turned the heating/hot water off, and I can turn the heating on 20 minutes in advance of getting home so things are toasty when I open the front door.
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 15 December, 2022, 04:39:16 pm
Is there such a thing as a system that:
  • Replaces the thermostat with a gadget that
  • Communicates via the Devil’s Radio with a temperature sensor located somewhere sensible, and
  • Sends on/off instructions to the boiler over the existing Anbaric String, and
  • Doesn't require Kimlike Powers to install?
Yes:
https://www.timeguard.com/products/climate/programastat-plus/wireless-7-day-programmable-room-thermostat
Small box connects to your heating system wherever and instead of your existing thermostat.  Big box goes wherever you put it.  The two communicate wirelessly not using any recognised flavour of Devil's radio, nor anything fashionable like zebedee or Z-Wave, it's not part of a mesh, it doesn't report any statistics to anything anywhere.  There's no way the company can bork it remotely nor start charging you to use it.  There is in fact a vast list of things it cannot do.  What it can do is turn your heating on & off and bugger all else.  We have had one for 10 years and they've got out of sync, the receiver missed the turn on message, twice that I'm aware of.  We have stone walls 18" think including internally.
I like the 7 day programmer version as it varies the target temperature through the day and differently Sat & Sun.  But there's an even dumber version if you prefer:
https://www.timeguard.com/products/climate/programastat-plus/wireless-digital-room-thermostat-with-night-set-back
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 15 December, 2022, 04:42:54 pm
Plug fuses get warm when they're in use (obviously proportional to the current being drawn), which might have something to do with it?
Point of order, m'lud.  Temperature rise is proportional to the square of the current drawn.

Of course it is  :facepalm:
Title: Re: Home energy saving tips /ideas...
Post by: chopstick on 15 December, 2022, 05:12:07 pm
I have discovered that despite the air temperature at head height being a nice comfy 18c, there's a howling gale going around my feet under the desk.
I had a shufty around with a surface thermometer and found the carpet temp is more like 16 under there and the skirting board is similarly cold, however that's not going to find me the source of the gale.

I suspect it's the tiny gap between skirting boards and the chip board slabs that make up the flooring below the carpet, and the tiny gaps between said chip board (it's probably not chip board I'd fall right through that)

Any ideas on how to confirm and seal?

I do know where the gale in the kitchen comes from as I found a massive hole in the plaster board when I was trying to find out why there was mouse shit in with my pans.
Today I noticed a very faint gentle draught very close to the carpet on our stairs but not any higher and blowing downwards.  It was hardly noticeable but once noticed, it was obvious.  Our permanently open radiator is in the hallway near the foot of the stairs and we tend to have the radiators upstairs turned down at the thermostat valve, plus we have a box room (where the PC is and where I'm sitting now) that doesn't have a radiator - so in the winter, upstairs is usually cooler than downstairs but hot air rises so it does get some heat from downstairs.

This got me thinking - there are a couple of air bricks upstairs and so there is potential for a draught from them but if there was no ingress of air from the outside, being as hot air rises and that hot air must displace the cold air, could it be that the gentle draught that I felt is actually just the movement of cold air caused by the hot air rising from around our hallway radiator?
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 15 December, 2022, 06:43:34 pm
Could be. I was wondering that just last night, why our cat insists on sleeping right under the radiator when there must be a cold draught there as it gets sucked in the radiator.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 15 December, 2022, 07:20:15 pm
Hive here too - with some of their wifi TRVs that we use to isolate a couple of rooms that we don't use during the day and another in our bedroom that just opens up for a while in the morning and in the late evening (the main heating does, of course, have to be on when the TRV time windows are in force) - and we keep doors closed.

All part of the efforts to control energy consumption - along with some Hive lightbulbs and plug/sockets.

Optimum location for the thermostat seems to be half way up the stairs.

Works a treat.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 15 December, 2022, 07:51:59 pm
My, it's cold out.  I have been out since 5 and the indoor temperature has dropped by more than 1oC an hour.  At that rate, it will be below 10oC in the morning.  Obviously it won't, as the temperature differential narrows, but 13oC is likely.

It was 5.6° indoors when I got up this morning, and 2.4° when I got back from work. Only just managed to bring the temp up to something reasonable.
Do you live in a tent?

You got it on the second guess - on a narrowboat. With a good 50mm of snow on top of the solar panels, I don't have the electricity to run the central heating pump, so relying on solid fuel only.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 15 December, 2022, 07:54:09 pm
I'm cold with the CH thermostat set to 21.  And I have on a T-shirt, fleece, dressing gown AND hat.  I think the stat is in a warmer part of the room than the sofa is.

The stove works better than this.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 15 December, 2022, 09:06:16 pm
Someone upthread mentioned a fan to circulate the warm air that would otherwise collect at the highest point. I have a small fan, and it makes a difference.

I'm thinking of molishing something more efficient, my feet are very cold under the desk but the thermometer (high up) is reading over 23 degrees. Perhaps using a computer fan, run off a USB power bank, fixed into a plastic funnel, attached to a length of PVC pipe running from ceiling to floor. What does the panel reckon?
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 15 December, 2022, 09:37:09 pm
I recall someone molishing an apparatus for a workshop using a large cardboard tube (sort of thing industrial quantities of fabric might be supplied on) and a conveniently sized fan.

I'd suggest that funnels are a bad idea; a larger diameter tube will allow the fan to operate more efficiently.

Computer fans usually run from 12V, so a 5V USB power supply isn't ideal.  You probably disposed of a suitable wall-wart three weeks ago when tidying up.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 15 December, 2022, 09:38:53 pm
Get one of those heated monoboots  ;D
Title: Re: Home energy saving tips /ideas...
Post by: Pingu on 15 December, 2022, 09:40:11 pm
Someone upthread mentioned a fan to circulate the warm air that would otherwise collect at the highest point. I have a small fan, and it makes a difference.

I'm thinking of molishing something more efficient, my feet are very cold under the desk but the thermometer (high up) is reading over 23 degrees. Perhaps using a computer fan, run off a USB power bank, fixed into a plastic funnel, attached to a length of PVC pipe running from ceiling to floor. What does the panel reckon?

(https://bitesizedlectures.stir.ac.uk/files/2020/06/bats.jpg)
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 15 December, 2022, 09:42:21 pm
The flat here is connected to the district heating (via a heat exchanger in the basement) and is plumbed together with all the floors below me. Each radiator has a thermostatic valve, but it's basically a set and forget. In theory I could turn it down when I go out, and turn it back up when I get home, but that is a pain with 3 main radiators to fettle.

I'm trying to work out if there is some sort of controllable TRV replacement that I could use instead. Would allow for a finer control of the temp.

J
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 15 December, 2022, 09:46:06 pm
QG, I have questions:
A) if the heat is being made anyway what benefit is there to turning it down when you're out?
B) how does charging for district heating work, does everyone connected pay a flat rate per m3 of home or something?
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 15 December, 2022, 09:46:47 pm
The flat here is connected to the district heating (via a heat exchanger in the basement) and is plumbed together with all the floors below me. Each radiator has a thermostatic valve, but it's basically a set and forget. In theory I could turn it down when I go out, and turn it back up when I get home, but that is a pain with 3 main radiators to fettle.

I'm trying to work out if there is some sort of controllable TRV replacement that I could use instead. Would allow for a finer control of the temp.

J
Honeywell Evohome.

Those can replace a TRV without letting the water out.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 15 December, 2022, 09:49:42 pm
You can even get a district heating kit https://www.robertdyas.co.uk/trv-district-heating-starter-pack

Also, I noticed that Shelly do Smart TRV's these days if you want to molish your own.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 15 December, 2022, 09:57:38 pm
Replacement TRV head actuators are available in everything from "normal TRV head with built-in power resistor" to "internet-of-shit Devil's-Radio-enabled smart things" from the usual suspects.  As ever, it depends on how standard the mounting on your valves is, budget, and your enthusiasm for entrusting control to someone else's computer.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 15 December, 2022, 09:58:42 pm
QG, I have questions:
A) if the heat is being made anyway what benefit is there to turning it down when you're out?
B) how does charging for district heating work, does everyone connected pay a flat rate per m3 of home or something?
No idea how it works for QG, but where I lived in Poland many years ago, the heating charge was based on a sort of column of coloured water thing that was attached to each radiator and gradually evaporated. This figure was then put through a complicated algorithm taking into account what floor you were on, whether you were a corner flat, etc (so corner flats paid less per mm of evaporated water, or whatever it was, because they needed more heating to compensate for the greater external wall area).
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 15 December, 2022, 10:08:14 pm
I recall someone molishing an apparatus for a workshop using a large cardboard tube (sort of thing industrial quantities of fabric might be supplied on) and a conveniently sized fan.

I'd suggest that funnels are a bad idea; a larger diameter tube will allow the fan to operate more efficiently.

Computer fans usually run from 12V, so a 5V USB power supply isn't ideal.  You probably disposed of a suitable wall-wart three weeks ago when tidying up.

Wall-warts I do not have, but 12V I do, I had assumed wrongly they were run off the 5V. That makes it easier. Was thinking 50mm-ish waste pipe tubing, but the cardboard sounds like a good idea. I would cut off most of the funnel to make it match the tube.
Title: Re: Home energy saving tips /ideas...
Post by: Tod28 on 15 December, 2022, 10:23:55 pm
You may be better off with a "blower" (centrigal/radial) than a "fan" (axial) to overcome the back pressure in the tube. Plenty on Amazon/Fleabay. As found in most extractor hoods to vent through ducting.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 15 December, 2022, 10:32:18 pm
Puting the thermostato n the floor next to the window of a south facing room seems to have been a bad idea

25c at head height, 18 at floor level, and not rising...
Title: Re: Home energy saving tips /ideas...
Post by: chrisbainbridge on 15 December, 2022, 11:11:20 pm
I bought a couple of fan things off the internet a few years ago which fitted onto standard radiators with a temperature sensor. When it saw a rise in temp it turned on the fan and sucked or blew air through the radiator gently and quietly. Absolutely brilliant. Sadly they seem to have stopped making them.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 16 December, 2022, 12:32:22 am
QG, I have questions:
A) if the heat is being made anyway what benefit is there to turning it down when you're out?
B) how does charging for district heating work, does everyone connected pay a flat rate per m3 of home or something?
No idea how it works for QG, but where I lived in Poland many years ago, the heating charge was based on a sort of column of coloured water thing that was attached to each radiator and gradually evaporated. This figure was then put through a complicated algorithm taking into account what floor you were on, whether you were a corner flat, etc (so corner flats paid less per mm of evaporated water, or whatever it was, because they needed more heating to compensate for the greater external wall area).

So. Until a year or so ago, we had the column of coloured gel like stuff bolted to the radiator. And once a year they came and took one out, and put another in. Now we have electronic devices in each radiator which I assume tell a central box somewhere.

In terms of billing. The building gets a bill based on volume of hot water that goes into the basement heat exchanger. Then the 48 or so apartments in the building get a bill for their share of the total. Based on the numbers from the radiator measuring device. So if the radiator thingy says I used 100 of what ever the units are, and the total number of units used by the building is 10000, then I get a bill for (100/10000) X total bill for the building.

So I do get a bill based on how much heat I use, and thus having the heating on when I'm at the office seems silly. If I can have better control of it.

J
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 16 December, 2022, 12:37:31 am

Honeywell Evohome.

Those can replace a TRV without letting the water out.

Do they require a network connection to an external service to operate or can they be used completely stand alone?

You can even get a district heating kit https://www.robertdyas.co.uk/trv-district-heating-starter-pack

Also, I noticed that Shelly do Smart TRV's these days if you want to molish your own.

Same question.

Replacement TRV head actuators are available in everything from "normal TRV head with built-in power resistor" to "internet-of-shit Devil's-Radio-enabled smart things" from the usual suspects.  As ever, it depends on how standard the mounting on your valves is, budget, and your enthusiasm for entrusting control to someone else's computer.

Aye. The difficulty is in finding one that doesn't rely on a 3rd party keeping their servers on line for you to have heat.

There are some which have a relatively open ZigBee interface. I'm considering giving one a go.

J
Title: Re: Home energy saving tips /ideas...
Post by: MikeFromLFE on 16 December, 2022, 06:34:51 am
I bought a couple of fan things off the internet a few years ago which fitted onto standard radiators with a temperature sensor. When it saw a rise in temp it turned on the fan and sucked or blew air through the radiator gently and quietly. Absolutely brilliant. Sadly they seem to have stopped making them.
I've got one of these on one of the living room radiators - in the part of the room with a relatively high ceiling. Possibly bought a following a recommended hereabouts.
Yes, it is an excellent thing. Simple and effective.
Ours has become slightly more noticeable - possibly one of the fans are giving out. The fans seem to be bog standard computer fans so may be replaceable, but if the sensor goes, I'd guess that's curtains.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 16 December, 2022, 07:27:50 am
There are stove fans that presumably use the Peltier effect to power themselves.  They look a bit ugly though, and I quite like the heat distribution as it is.
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 16 December, 2022, 07:40:04 am

Honeywell Evohome.

Those can replace a TRV without letting the water out.

Do they require a network connection to an external service to operate or can they be used completely stand alone?

They can be use completely stand-alone.

The valves have batteries and communicate with the controller. The controller is mains powered* and the controller tell you if it's lost communication with any valve, or the valve has low batteries.

The controller has an optional WiFi if you want to run it remotely, but all the control and scheduling is done locally. A change of scheduling can be done remotely. It uses WiFi to pick up outside temperature but that's not vital.

You can have temperature sensors that aren't on the radiator valves but they are as expensive as the valves, which come with temperature sensors. You can also have controllers to control existing motorised valves for underfloor or hot water.

*Well it has rechargeable batteries but they only last an hour or so.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 16 December, 2022, 08:44:08 am
My, it's cold out.  I have been out since 5 and the indoor temperature has dropped by more than 1oC an hour.  At that rate, it will be below 10oC in the morning.  Obviously it won't, as the temperature differential narrows, but 13oC is likely.

It was 5.6° indoors when I got up this morning, and 2.4° when I got back from work. Only just managed to bring the temp up to something reasonable.
Do you live in a tent?

You got it on the second guess - on a narrowboat. With a good 50mm of snow on top of the solar panels, I don't have the electricity to run the central heating pump, so relying on solid fuel only.

That is getting too marginal for power for my tastes.
I switched boats and moorings a few times (ended up on a mooring with mains, so, luxury).

Initially on a riverbank with no facilities - so reliant on solid fuel stove, gas bottles, a PV and motoring to waterpoints for power.

Remember a miserable evening arriving home late after weekend away - gas wouldn't run, so no hot water or cooking. Water pipes frozen. It was several hours before the crappy stove heated the place up enough to be bearable, and I still didn't have any hot food.

We dealt with the floor-ceiling temp gradient on the big boat by fitting a row of finrads at floor level, under a bench. Insulation directed the heat out the front of the bench.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 16 December, 2022, 09:13:35 am
QG, I have questions:
A) if the heat is being made anyway what benefit is there to turning it down when you're out?
B) how does charging for district heating work, does everyone connected pay a flat rate per m3 of home or something?
No idea how it works for QG, but where I lived in Poland many years ago, the heating charge was based on a sort of column of coloured water thing that was attached to each radiator and gradually evaporated. This figure was then put through a complicated algorithm taking into account what floor you were on, whether you were a corner flat, etc (so corner flats paid less per mm of evaporated water, or whatever it was, because they needed more heating to compensate for the greater external wall area).

So. Until a year or so ago, we had the column of coloured gel like stuff bolted to the radiator. And once a year they came and took one out, and put another in. Now we have electronic devices in each radiator which I assume tell a central box somewhere.

In terms of billing. The building gets a bill based on volume of hot water that goes into the basement heat exchanger. Then the 48 or so apartments in the building get a bill for their share of the total. Based on the numbers from the radiator measuring device. So if the radiator thingy says I used 100 of what ever the units are, and the total number of units used by the building is 10000, then I get a bill for (100/10000) X total bill for the building.

So I do get a bill based on how much heat I use, and thus having the heating on when I'm at the office seems silly. If I can have better control of it.

J
Interesting that you're only just getting the coloured gel replaced with electronic devices, as I know some places were using them way back then – 2006. It all varied from estate to estate. I don't know if the calculation methods also varied.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 16 December, 2022, 04:17:57 pm
Just for comedy value, the still-valid EPC for Casa Zilla says the estimated yearly energy cost is

(click to show/hide)

It's really about £2,450, ignoring the £400 support this winter.

More to the point, the various suggested improvements to get it from a C to a B rating are STILL not worth it in the slightest.  Even at 5x the energy cost, the payback periods are at least 20 years.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 19 December, 2022, 07:43:43 am
It's sufficiently warm weather that the stove can't really be lit, so the CH is on.  It won't cost much to run when it's 12-13°C outside.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 19 December, 2022, 02:22:09 pm
Tragic that we need articles like this, and equally tragic that it's so vague (but I suppose that's what you get when you get finance people to cover engineering subjects): https://www.bbc.co.uk/news/av/business-63910430

Also misses the point that LED fairy lights are a much cheaper and safer alternative to candles in the event of those power cuts we've been promised.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 19 December, 2022, 09:55:36 pm
Bike lights probably give you more lumens for your lsd though (compared to fairy lights).
Title: Re: Home energy saving tips /ideas...
Post by: chopstick on 20 December, 2022, 02:15:27 am
Bike lights probably give you more lumens for your lsd though (compared to fairy lights).
Mine certainly do on account of being "dynamo" - but I don't fancy bringing the rollers into the living room - tbh I don't fancy using the rollers at all.  I could top up the powerbanks whilst out in the day though.  I think I'd rather sit in a room with fairy lights than a bike lamp (unless I was reading).
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 12 January, 2023, 02:04:23 pm
This article is quite interesting. Needs legislation though....
https://www.theguardian.com/environment/2023/jan/12/energy-house-20-tests-tech-that-aims-to-make-homes-greener-and-cheaper-to-run
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 12 January, 2023, 03:34:02 pm
Insulation is an odd one.  It works fine when there is a constant temperature difference between indoors and out.  However, many people leave the heating off during the working day and only switch it on when, or just before, they return home.  You'd be silly not to.

Anyway, when trying to raise a house from stone cold, the insulation doesn't speed this up appreciably.  Everything on the indoor side of the insulation has to be warmed up, not just the air.  To do that quickly and with minimal losses, you need a powerful heat source.  My mid-90s new build was only acceptably warm at weekends in winter, because the CH simply couldn't get it to temperature between 4pm and bedtime.  That had modern, not much different to current, insulation thicknesses.
Title: Re: Home energy saving tips /ideas...
Post by: DuncanM on 12 January, 2023, 03:57:37 pm
Presumably, the insulation reduces the temperature drop between turning the heating off and turning it back on again though?

As far as "smart" TRV things, we have TADO with "smart" valves on all our radiators, which means that the heating is on in the bedroom/office, but nowhere else right now. Every so often it tells us how much it has saved, but I don't believe it for a second. We don't pay for the subscription, so can't set up geolocation based heating, but that seemed like too much of a faff even when it was free.
Title: Re: Home energy saving tips /ideas...
Post by: grams on 12 January, 2023, 04:06:20 pm
Everything on the indoor side of the insulation has to be warmed up, not just the air.

In a poorly insulated house you have to not only heat up the air in the house but the outside of the house too, which has the annoying habit of drifting away.

I think you may have learnt the wrong lesson from whatever houses you’re comparing. It sounds like the heating wasn’t working properly or the insulation wasn’t doing its job.
Title: Re: Home energy saving tips /ideas...
Post by: chrisbainbridge on 12 January, 2023, 04:13:32 pm
Insulation is an odd one.  It works fine when there is a constant temperature difference between indoors and out.  However, many people leave the heating off during the working day and only switch it on when, or just before, they return home.  You'd be silly not to.

Anyway, when trying to raise a house from stone cold, the insulation doesn't speed this up appreciably.  Everything on the indoor side of the insulation has to be warmed up, not just the air.  To do that quickly and with minimal losses, you need a powerful heat source.  My mid-90s new build was only acceptably warm at weekends in winter, because the CH simply couldn't get it to temperature between 4pm and bedtime.  That had modern, not much different to current, insulation thicknesses.
We had a similar discussion with our central heating installer in our newbuild.  The response was that CH should be left on constantly at a low level and the bigger the house the more important.  They deliberately under specced the boiler and piping in order to get the contract and I did not spot it.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 12 January, 2023, 04:58:49 pm
Most houses need bigger radiators.  The problem is that there's nowhere to put them in modern shoeboxes.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 12 January, 2023, 05:01:17 pm
I took the moneysavingboilerchallenge.com and failed.

They don't recommend it if you have a hot water cylinder, which is correct as you'd never get properly hot water.

They also say the average boiler creates the same CO2 in a year as SEVEN transatlantic flights.  Why are we worrying about flying?!!
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 12 January, 2023, 08:30:24 pm
I took the moneysavingboilerchallenge.com and failed.

They don't recommend it if you have a hot water cylinder, which is correct as you'd never get properly hot water.

They also say the average boiler creates the same CO2 in a year as SEVEN transatlantic flights.  Why are we worrying about flying?!!

I don't know, it beats me. The total emissions from aviation account for 2% of global CO2. That's all aviation, freight, crop spraying, everything, not just pointless business meetings in Singapore or multiple package holidays to Magaloof. If we grounded every plane permanently tomorrow it would make a gnat's crotchet of fuck all difference to climate change.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 13 January, 2023, 06:59:21 am
I took the moneysavingboilerchallenge.com and failed.

They don't recommend it if you have a hot water cylinder, which is correct as you'd never get properly hot water.

They also say the average boiler creates the same CO2 in a year as SEVEN transatlantic flights.  Why are we worrying about flying?!!

I don't know, it beats me. The total emissions from aviation account for 2% of global CO2. That's all aviation, freight, crop spraying, everything, not just pointless business meetings in Singapore or multiple package holidays to Magaloof. If we grounded every plane permanently tomorrow it would make a gnat's crotchet of fuck all difference to climate change.

Not correct.

It isn't just the CO2, it is the particulates and  water vapour dumped right where they have the most impact.
Title: Re: Home energy saving tips /ideas...
Post by: MikeFromLFE on 13 January, 2023, 07:19:35 am
Most houses need bigger radiators.  The problem is that there's nowhere to put them in modern shoeboxes.
Or anywhere to put the bikes.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 13 January, 2023, 03:05:12 pm
Well.
Just under 4 months after I submitted the claim forms, Home Energy Scotland have just called and are going to put us in the payment run for next week so we can get our money for the CWI and underfloor insulation we had installed in July.
Finally!
<dances frenetically>
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 13 January, 2023, 03:37:46 pm
Insulation is an odd one.  It works fine when there is a constant temperature difference between indoors and out.  However, many people leave the heating off during the working day and only switch it on when, or just before, they return home.  You'd be silly not to.

Anyway, when trying to raise a house from stone cold, the insulation doesn't speed this up appreciably.  Everything on the indoor side of the insulation has to be warmed up, not just the air.  To do that quickly and with minimal losses, you need a powerful heat source.  My mid-90s new build was only acceptably warm at weekends in winter, because the CH simply couldn't get it to temperature between 4pm and bedtime.  That had modern, not much different to current, insulation thicknesses.
Insulation of course slows down the losses from everything inside it, including the walls. So a well-insulated house shouldn't get stone cold before you come back and heat it up again.

A new-build house will take the savings from the lower heat loss and cash them out in the form of a smaller boiler, smaller radiators, and lower flow temperature. As you say, the properly-sized system can keep the house warm but what it can't do is crash-heat it in a hurry when you get home. You are supposed to leave the heating on while you are out, with a high-ish "set-back" temperature. The insulation means it doesn't actually lose much heat in the meantime, and running a small system at its design capacity is more efficient than blasting a large one briefly, so you save fuel overall.

"You'd be silly not to" is the sort of BRITISH reasoning that means we live shivering in expensive but still cold and damp homes and die young of unspeakable respiratory disease. (We did a study a few years ago giving people hybrid heat pump / gas boiler systems. Even though running the heat pump overnight on Economy 7 electricity is vastly cheaper  the residents preferred to let the house cool down and then rely on lots of gas. They liked cold bedrooms and couldn't get around the idea of heating the downstairs when they weren't in it yet. This counts as a policy failure.)
Title: Re: Home energy saving tips /ideas...
Post by: MikeFromLFE on 13 January, 2023, 04:54:20 pm
I've done a few amateur back of an envelope experiments with leaving the heating off or on when we've been out all day.
The costs seem to work out to be almost identical - although it's nice to come home to a warm place rather than waiting for it to warm up.
Impossible for me to compensate for variables such as weather though.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 13 January, 2023, 05:02:47 pm
I would imagine that having the boiler running more often but at a lower flow temp with more condensing going on is probably better for the boiler than more periods of going full gas to heat up from cold to hot.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 13 January, 2023, 05:13:44 pm
Depends on having a thermostat though. If you don't have a thermostat to cut the boiler off when the room reaches the desired 'uninhabited' temperature, you're going to come back to a very hot house and a huge bill.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 13 January, 2023, 05:20:59 pm
Who has central heating but no thermostat or TRVs?

People with cold houses and huge bills, or who never use the central heating, presumably.  And I suppose a few victims of landlord shoddiness.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 13 January, 2023, 06:09:21 pm
Our old boiler had a thermostat, but it was in a pretty useless place, the hall. Easy to wire into the boiler but not much good for actual thermal regulation. When that boiler broke down, the new one the landlord put in had no thermostat. But it does seem more efficient, and he did put it in promptly without getting multiple quotes!(!) We put it on two or three times a day as necessary, definitely not at night or if we're away.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 13 January, 2023, 06:12:02 pm
Actually, I've just remembered installing a thermostat at Mrs Barakta's-Mum's former residence, which didn't have one.  It did have TRVs though, so it's not like it was unregulated.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 13 January, 2023, 06:21:35 pm
Actually, a quick shufti at Screwfix suggests we do have TRVs. Probably these ones: https://www.screwfix.com/p/flomasta-white-chrome-angled-thermostatic-radiator-valve-lockshield-15mm-x-1-2/386xt
I can't see an actual brand name on them. I'd both a) interpreted TRVs as something 'smarter' (like with actual temperatures rather than scale-less markings) and b) not noticed them doing anything. As you were, then.
Title: Re: Home energy saving tips /ideas...
Post by: Feanor on 13 January, 2023, 06:31:17 pm
Yes, those are TRVs.

They typically are uncalibrated and don't work in actual temperatures.
That's OK, because where they are situated means that the temperature they see is not the room temperature.
You just need to adjust as-required.

Once they reach their set-point, they just throttle the flow to the radiator.
Once all the radiators are throttling, the flow will be reduced in the loop, with the only flow remaining in the bypass radiator ( usually a towel rail ) or a pressure relief valve.
At this point, the return temperature to the boiler will be almost as hot as the flow temperature, and the boiler will shut down on it's own internal thermostat, which will usually have a dial on the boiler itself.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 13 January, 2023, 06:35:35 pm
Okay, will have to experiment with leaving the heating on and seeing what happens.
Title: Re: Home energy saving tips /ideas...
Post by: neilrj on 14 January, 2023, 05:49:37 pm
Okay, will have to experiment with leaving the heating on and seeing what happens.

You could take the head off and see if the valve pin moves up and down, if movement is restricted then regulation is also restricted, pins can be full up (on) or down (off) or between, also if the regulating head isn't tight on the valve the things don't regulate well either.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 15 January, 2023, 12:10:19 pm
This article is quite interesting. Needs legislation though....
https://www.theguardian.com/environment/2023/jan/12/energy-house-20-tests-tech-that-aims-to-make-homes-greener-and-cheaper-to-run


AAAAAAAAAAAAAARRRRRRRRRRRRRRRRRGGGGGGGGGGGGHHHHHHHHHHH!!!

"Here we are experimenting on how to make the crap we have marginally better, without taking into account the whole system of the built environment around it" - Roughly Paraphrased.

What are they testing? Single family homes, with a car parked out front.

If we are to build sustainable homes, we need to stop thinking in these terms. A month ago to a total absence of any fanfare Scotland announced that it would require new homes to be built to passivhaus standards:

https://www.thenational.scot/news/23197204.government-announces-passivhaus-standards-adopted-scotland/

I posted this on Mastodon and got quite a lot of replies to it. With varying levels of merit. On the face of it my reaction is: THANK FUCKING FINALLY! It's about 30 years too late. We've known about the principles of highly efficient house building since the late 80's, based on research started in the 70's. But my big reservation in all of this is that we still have this fixation on single family homes. Suburban developments that are only accessible by car, and thus reinforcing the toxic car culture we have today. What's the point of having a house that you can heat with a tea light, and uses about half a kilowatt hour of energy per day to run. If you then put a 100kwh car on the drive and use that to get to work 20km away.

We need to be looking at denser developments in walk-able neighbourhoods that are built to the sort of energy efficiency levels that Passivhaus standard offers. This doesn't necessarily mean we need 16 story apartment blocks everywhere (tho there are places where this is exactly the right choice), but maybe 3-4 story buildings with an apartment on each floor. Built such that there's a transit stop within a 5 min walk, that there's a bakers and a pub, and a park also within 5 mins. With secure bike parking in the basement, and some limited parking spaces for those who absolutely have to have a car.

I'm sure I've ranted before about how we have a problem with the way planning departments approach new developments "I'm sorry you can't build this ultra efficient home here, it would be out of place with our Victorian terrace rabbit hutches". It's something we really need to fix, for two reasons. One so we can start building ultra efficient homes (note, homes, not houses), as well as (and maybe most importantly), so we can start retrofitting the existing stock. For many homes that were built with solid walls, the only hope is either stick insulation inside the rooms, thus losing upto 0.3m of each inside dimension of the room, which is rather a lot given how small a lot of places are). Or we have to do something to the envelope outside. The later of course will change the appearance of the home and thus provoke the ire of the planning department who won't let you do anything that might make your quality of life better.

There is also the question of embodied energy in the building already, vs what if we knock it down and make something sensible in it's place?

But of course none of this is going to happen cos landlords have zero incentive to do anything about the energy efficiency of a place they rent out, and home owners won't be able to fund it. So unless the government is willing to fund it, we're stuck with housing stock that is basically fucking useless.

Hmm, I'm ranting again.

Point stands, stop concentrating on single family homes in a toxic car culture, and start looking at dense walkable neighbourhoods with proper public transport.

J
Title: Re: Home energy saving tips /ideas...
Post by: barakta on 15 January, 2023, 05:54:56 pm
And if we're going to increase multi-occupancy living blocks (flats etc) then we MUST legislate for how communal repairs are handled. Even Scotland which has tenements galore does not handle this well. A friend is the only owner-occupier of one of 6 flats in a tenement and getting the other owners to pay for roof/wall and other repairs or other occupants not to block the back exit with crap is a nightmare.

I'd love to know how places like Finland etc which have civilised looking blocks of accommodation with basement storage AND often nice things like a top floor shared area, keep it all so nice and clean. Is this that an ongoing charge is paid towards upkeep by some kind of manager/staff to clean stuff and deal with rule-breaking or something else? Is it a cultural thing where it's unacceptable to be the skanky twat who dumps their trash in communal spaces?
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 15 January, 2023, 06:05:37 pm
And if we're going to increase multi-occupancy living blocks (flats etc) then we MUST legislate for how communal repairs are handled. Even Scotland which has tenements galore does not handle this well. A friend is the only owner-occupier of one of 6 flats in a tenement and getting the other owners to pay for roof/wall and other repairs or other occupants not to block the back exit with crap is a nightmare.

I'd love to know how places like Finland etc which have civilised looking blocks of accommodation with basement storage AND often nice things like a top floor shared area, keep it all so nice and clean. Is this that an ongoing charge is paid towards upkeep by some kind of manager/staff to clean stuff and deal with rule-breaking or something else? Is it a cultural thing where it's unacceptable to be the skanky twat who dumps their trash in communal spaces?

I can't talk for Finland, but here in .NL normally there is a management company for the building, and everyone pays a little to wards it each month.

The building I'm in we have a coop, which we're all members of, with an elected board of members who make every day decisions, as well as approving or denying a lot of requests from residents. They generally get to say yay or nay.

So far they have said nay to:

- Spike trap in the hallway
- Electrifying the front door handle
- Having a pet Penguin
- Having a pet Capybara

They have said yay to:

- Me offering to clear snow from in front of the building.

We have a cleaner that is paid for by the monthly contributions from everyone who comes in once a week and cleans the communal spaces etc...

J
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 15 January, 2023, 06:10:00 pm
The UK problem is of course that property tends to be owned by landlords, which means they dominate such management companies with their parasitical bare-minimum short-term thinking.
Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 15 January, 2023, 06:15:10 pm
And if we're going to increase multi-occupancy living blocks (flats etc) then we MUST legislate for how communal repairs are handled. Even Scotland which has tenements galore does not handle this well. A friend is the only owner-occupier of one of 6 flats in a tenement and getting the other owners to pay for roof/wall and other repairs or other occupants not to block the back exit with crap is a nightmare.


People generally hate factors, but they do have their uses (having previously lived in an unfactored tenement, I will not be doing so again). T

I have wondered what's going to happen to the old Victorian/Edwardian tenements up here (I don't think England really has an equivalent - there are loads more terraced houses from that era in England, whereas in Scotland it's mainly flats in the inner cities). There are a huge number of very inefficient buildings in varying states of decay, not helped by inattentive landlords unwilling to invest, because demand far exceeds supply.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 16 January, 2023, 08:03:32 am
I live in a house without TRVs (apart from on the new rad that I fitted).

It is stupidly inefficient, as is our big, aga-like, diesel boiler/stove.

I have noted that letting the house get very cold is inefficient. The one thing the stupid stove is good at is acting like a heat store (it weighs 349kg).  Better to set a moderate temperature and let the stove fire up a couple of times during the day.

Yay for scotland and passivhaus- that is probably the influence of the Greens.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 16 January, 2023, 09:30:43 am
There are a huge number of very inefficient buildings in varying states of decay, not helped by inattentive landlords unwilling to invest, because demand far exceeds supply.
Landlords won't invest when demand exceeds supply, because they can rent the building out anyway.
Landlords won't invest when supply exceeds demand, because they can't rent the building out anyway.

Title: Re: Home energy saving tips /ideas...
Post by: Asterix, the former Gaul. on 16 January, 2023, 09:55:48 am
Last summer I made part of the garage(3mx3m) into a utility room.  I insulated the walls, the ceiling above is very well insulated, the floor has insulated wedi board under the tiles,  it has a single window, in the UPVC back door.  It is has controlled ventilation. 

If a meal is left cooking in the slow cooker all day, it is amazing how warm the room can get.  This suggests that slow cookers need more insulation!
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 16 January, 2023, 10:12:21 am
And if we're going to increase multi-occupancy living blocks (flats etc) then we MUST legislate for how communal repairs are handled. Even Scotland which has tenements galore does not handle this well. A friend is the only owner-occupier of one of 6 flats in a tenement and getting the other owners to pay for roof/wall and other repairs or other occupants not to block the back exit with crap is a nightmare.

I'd love to know how places like Finland etc which have civilised looking blocks of accommodation with basement storage AND often nice things like a top floor shared area, keep it all so nice and clean. Is this that an ongoing charge is paid towards upkeep by some kind of manager/staff to clean stuff and deal with rule-breaking or something else? Is it a cultural thing where it's unacceptable to be the skanky twat who dumps their trash in communal spaces?

I can't talk for Finland, but here in .NL normally there is a management company for the building, and everyone pays a little to wards it each month.

The building I'm in we have a coop, which we're all members of, with an elected board of members who make every day decisions, as well as approving or denying a lot of requests from residents. They generally get to say yay or nay.

So far they have said nay to:

- Spike trap in the hallway
- Electrifying the front door handle
- Having a pet Penguin
- Having a pet Capybara

They have said yay to:

- Me offering to clear snow from in front of the building.

We have a cleaner that is paid for by the monthly contributions from everyone who comes in once a week and cleans the communal spaces etc...

J
I can't talk for Finland either but in Poland, each estate, consisting of several blocks, would be managed as one unit. I'm not sure of the ownership or management details (flats within each block were individually owned but I don't know whether the ownership of the estate as a whole was wholly corporate or partly private) but yes there was a small charge on each flat, used for improvements (I remember our block being insulated, very effectively, circa 2005) and repairs. No tenants' committee to answer silly questions, that I was aware of.

That's for estates built under "the previous system". For those built under private enterprise, the system might be different (but probably is quite similar).
Title: Re: Home energy saving tips /ideas...
Post by: djmc on 16 January, 2023, 11:56:59 am
I used to own an apartment in Benidorm. Every year there was a meeting which I could have attended where it was decided what was going to happen to the appartment block. In Spain each of the apartment owners has a share of the ownership of the building. The costs of the building including paying all charges (costs of administration, concierges etc) are paid by the owners of the apartments. This seems to be a very fair system and I have no problem with it. I think it important that there be a concierge to look after the day to day affairs, ensure the state of the communal areas, look after the garden and I think that he/she should be paid adequately. One of the problems in British blocks of flats is this does not happen. When the buildings are released there shoud be thought taken about maintenance and adequate finance set up.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 16 January, 2023, 01:21:05 pm
This article is quite interesting. Needs legislation though....
https://www.theguardian.com/environment/2023/jan/12/energy-house-20-tests-tech-that-aims-to-make-homes-greener-and-cheaper-to-run


AAAAAAAAAAAAAARRRRRRRRRRRRRRRRRGGGGGGGGGGGGHHHHHHHHHHH!!!

"Here we are experimenting on how to make the crap we have marginally better, without taking into account the whole system of the built environment around it" - Roughly Paraphrased.

What are they testing? Single family homes, with a car parked out front.

If we are to build sustainable homes, we need to stop thinking in these terms. A month ago to a total absence of any fanfare Scotland announced that it would require new homes to be built to passivhaus standards:

https://www.thenational.scot/news/23197204.government-announces-passivhaus-standards-adopted-scotland/

I posted this on Mastodon and got quite a lot of replies to it. With varying levels of merit. On the face of it my reaction is: THANK FUCKING FINALLY! It's about 30 years too late. We've known about the principles of highly efficient house building since the late 80's, based on research started in the 70's. But my big reservation in all of this is that we still have this fixation on single family homes. Suburban developments that are only accessible by car, and thus reinforcing the toxic car culture we have today. What's the point of having a house that you can heat with a tea light, and uses about half a kilowatt hour of energy per day to run. If you then put a 100kwh car on the drive and use that to get to work 20km away.

We need to be looking at denser developments in walk-able neighbourhoods that are built to the sort of energy efficiency levels that Passivhaus standard offers. This doesn't necessarily mean we need 16 story apartment blocks everywhere (tho there are places where this is exactly the right choice), but maybe 3-4 story buildings with an apartment on each floor. Built such that there's a transit stop within a 5 min walk, that there's a bakers and a pub, and a park also within 5 mins. With secure bike parking in the basement, and some limited parking spaces for those who absolutely have to have a car.

I'm sure I've ranted before about how we have a problem with the way planning departments approach new developments "I'm sorry you can't build this ultra efficient home here, it would be out of place with our Victorian terrace rabbit hutches". It's something we really need to fix, for two reasons. One so we can start building ultra efficient homes (note, homes, not houses), as well as (and maybe most importantly), so we can start retrofitting the existing stock. For many homes that were built with solid walls, the only hope is either stick insulation inside the rooms, thus losing upto 0.3m of each inside dimension of the room, which is rather a lot given how small a lot of places are). Or we have to do something to the envelope outside. The later of course will change the appearance of the home and thus provoke the ire of the planning department who won't let you do anything that might make your quality of life better.

There is also the question of embodied energy in the building already, vs what if we knock it down and make something sensible in it's place?

But of course none of this is going to happen cos landlords have zero incentive to do anything about the energy efficiency of a place they rent out, and home owners won't be able to fund it. So unless the government is willing to fund it, we're stuck with housing stock that is basically fucking useless.

Hmm, I'm ranting again.

Point stands, stop concentrating on single family homes in a toxic car culture, and start looking at dense walkable neighbourhoods with proper public transport.

J
Yes. But often the whole 'ecosystem' is just too big to change in one swoop. If you did that, it would collapse. By changing it one piece at a time, you give everyone time to adjust and accept the new ways.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 16 January, 2023, 01:41:50 pm
It may be a British thing, but people LIKE single family homes because:

Other people are noisy, messy bastards and you don't want to share so much as a party wall with them
Any communal resource will be abused (vandalised, parked on, or used for fly-tipping)
Companies like FirstPort gouge on service charges, while doing very little.
Title: Re: Home energy saving tips /ideas...
Post by: chrisbainbridge on 16 January, 2023, 03:03:41 pm
Concierge is important I think. Every large block in Tenerife seems to have one. Usually on the ground floor doing cleaning and minor handyman stuff. Then the block council to run things. Even when there is almost 100% absentee landlords this seems to work.

What is it about the U.K.?
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 16 January, 2023, 03:17:09 pm
It may be a British thing, but people LIKE single family homes because:

Other people are noisy, messy bastards and you don't want to share so much as a party wall with them
Any communal resource will be abused (vandalised, parked on, or used for fly-tipping)
Companies like FirstPort gouge on service charges, while doing very little.

Tell me about it - we have a BTL where the managemeent charge from First Port* (for a low mainteance bulding/grounds) has doubled in 4 years to £1,050pa. . . and you can do nothing about it.  We did have another in the same block of 4 and the bastards charged £550 for a "seller's pack" just so that we could be able to sell it.   The only upside is that the costs are allowed against tax.

*and they also control the ground rent company that keeps trying to claim spurious fees for sub-letting and various other stuff.  At the least the GR is fixed every 10 years and is currently only about £60pa

A neice has just bought a new-build flat (one of 6 in a single building) in Ealing (££££££) - she has an equal share in a specfic management company for the building with estimated annual contributions for maintenance etc - that should all work fine as it's probably low-risk on issues and there's a 10 year warranty from the developer.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 16 January, 2023, 04:31:18 pm
My red lines for buying a house include no service charges or ground rent.  The latter is pretty much dead now for new houses, as lenders decreed such properties are unmortgageable unless peppercorn.  So the developers load the service charge instead  >:(

Here, the ground rent limit for existing properties is 0.1% of value, referred to valuer between 0.1% and 0.5%, unacceptable over 0.5%.  Service charges > £500/year or 0.5% of value also need referring, although there is no absolute ceiling.  There are also limits on escalation.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 16 January, 2023, 05:16:14 pm
This article suggests that people in the UK on district heating (or heat networks) are being screwed.
https://www.theguardian.com/money/2023/jan/16/energy-bills-british-flat-dwellers-with-communal-heating-could-sue-operators
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 16 January, 2023, 05:21:22 pm
(In Britain) There's no such thing as society.  It's all Thatcher's fault.  Plus we are all slackers and cheats who cut corners and try to get something for nothing.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 16 January, 2023, 05:41:02 pm
Yes. But often the whole 'ecosystem' is just too big to change in one swoop. If you did that, it would collapse. By changing it one piece at a time, you give everyone time to adjust and accept the new ways.

Except any homes built now would be expected to still be about at 2100. Given we have less than a decade to make <b>drastic</b> changes to our built environment, we have no choice but to make big changes.

Not that they are especially big. Building residence buildings with walkable neighbourhoods is not rocket science.

It may be a British thing, but people LIKE single family homes because:

Other people are noisy, messy bastards and you don't want to share so much as a party wall with them
Any communal resource will be abused (vandalised, parked on, or used for fly-tipping)
Companies like FirstPort gouge on service charges, while doing very little.

Well I'm sure we can all have our own little life rafts when the waters rise.

What is it about being British that makes us all so monumentally shit at working together? ffs, you're all stuck on an island together, learn to not be shits to each other? Is that too much to ask?

Concierge is important I think. Every large block in Tenerife seems to have one. Usually on the ground floor doing cleaning and minor handyman stuff. Then the block council to run things. Even when there is almost 100% absentee landlords this seems to work.

What is it about the U.K.?

I don't agree. I don't know of any apartment buildings in the Netherlands with a concierge, in fact of all my friends who live in apartments across Europe, none have a concierge. It's not necessary, and just drives up costs.

My red lines for buying a house include no service charges or ground rent.  The latter is pretty much dead now for new houses, as lenders decreed such properties are unmortgageable unless peppercorn.  So the developers load the service charge instead  >:(

That's not sustainable. It's that simple.

(In Britain) There's no such thing as society.  It's all Thatcher's fault.  Plus we are all slackers and cheats who cut corners and try to get something for nothing.

At risk of more POBI content. Fuck the tories.

There is only society. We are all part of something bigger and we need to learn to play our part in that.

Same as Thatcher was very very wrong when in 1983 she said "There is no such thing as public money; there is only taxpayers' money."

The reality is the only money is public. It's all printed by the state, it's the only money there is.

J
Title: Re: Home energy saving tips /ideas...
Post by: fd3 on 17 January, 2023, 05:23:11 pm
If we are to build sustainable homes, we need to stop thinking in these terms. A month ago to a total absence of any fanfare Scotland announced that it would require new homes to be built to passivhaus standards:

https://www.thenational.scot/news/23197204.government-announces-passivhaus-standards-adopted-scotland/

This.  It's additionally  :facepalm: because it's existing, tested, technology that's used regularly in other countries.  It's like asking the US car manufacturers to match the emissions/efficiency of the cars they produce in Japan.  D'uh.

It may be a British thing, but people LIKE single family homes because:

Other people are noisy, messy bastards and you don't want to share so much as a party wall with them
Any communal resource will be abused (vandalised, parked on, or used for fly-tipping)

Not just the UK, I think most westerners would prefer a detached house on the beach if available.  But a detached or terraced house could still be built to the required standard.  Public transport and walking routes are not mutually exclusive from detached homes.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 17 January, 2023, 05:30:15 pm
Going back to the article, this is one of the most interesting bits IMO:
Quote
Two competing heating systems are being tested inside: an electric-based system utilising infrared panels, some of which are disguised as ceiling coving, as well as a water-based system that uses heated skirting boards combined with an air source heat pump.

Is it more efficient to use electricity to heat the air directly, or to use air to heat water which in turn heats the air? We shall, perhaps, find out.
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 17 January, 2023, 05:36:24 pm
I visited a Victorian terraced house in Coventry that Orbit had converted to Passivhaus standards at least 10 years ago, probably longer.  I have been using much learned from that visit to upgrade our home over time to improve our energy efficiency and reduce consumption.  Time and money have been the stumbling blocks but as of last week I have more of both so I'll push on with the project this year.

The one problem we Brits have above all others is that there are far too many ignoramuses who prefer to believe the pages of the daily hate, slobs like CBE Morgan and misogynist Clarkson, and see it as their inalienable right to crank up the boiler and piss off to Asda in the wankpanzer.
Title: Re: Home energy saving tips /ideas...
Post by: barakta on 17 January, 2023, 05:43:05 pm
Or even just my 77 yr old stepdad who has a HUGE 5 bedroom house (he worked from home so had 2-3 office rooms) and seems insistent on still using tungsten lighting - a lot of it - everywhere and sometimes the heating at full blast even when he's got windows open in places. It's like the idea of being even slightly eco conscious doesn't occur or apply to him.

It is my mum who goes round closing doors of unused rooms (most of them), turning their rads down, closing windows or turning heating off when they're not needing them and trying to turn lights off in unused rooms.

They have two cars too, even tho stepdad hardly goes anywhere. I have a slight sympathy in that my mum is STICKY so sharing a car with her would involve her filling it with stickiness and birdseed and grandchildren crap. But honestly....
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 17 January, 2023, 05:54:58 pm
Going back to the article, this is one of the most interesting bits IMO:
Quote
Two competing heating systems are being tested inside: an electric-based system utilising infrared panels, some of which are disguised as ceiling coving, as well as a water-based system that uses heated skirting boards combined with an air source heat pump.

Is it more efficient to use electricity to heat the air directly, or to use air to heat water which in turn heats the air? We shall, perhaps, find out.

The point in those infrared panels is that they heat the humans directly with radiation, rather than through conduction by heating the air.  So you feel warm in a colder room, which uses less energy than heating the whole room.  I'm sceptical for Stupid Lungs reasons, but I've never spent significant time in a room with that sort of heating.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 17 January, 2023, 05:57:43 pm
Or even just my 77 yr old stepdad who has a HUGE 5 bedroom house (he worked from home so had 2-3 office rooms) and seems insistent on still using tungsten lighting - a lot of it - everywhere and sometimes the heating at full blast even when he's got windows open in places. It's like the idea of being even slightly eco conscious doesn't occur or apply to him.

I just assumed that as a rich person who works in the aviation industry, he considers it his duty to be responsible for as much carbon dioxide emissions as humanly possible.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 17 January, 2023, 06:08:36 pm
Going back to the article, this is one of the most interesting bits IMO:
Quote
Two competing heating systems are being tested inside: an electric-based system utilising infrared panels, some of which are disguised as ceiling coving, as well as a water-based system that uses heated skirting boards combined with an air source heat pump.

Is it more efficient to use electricity to heat the air directly, or to use air to heat water which in turn heats the air? We shall, perhaps, find out.

The point in those infrared panels is that they heat the humans directly with radiation, rather than through conduction by heating the air.  So you feel warm in a colder room, which uses less energy than heating the whole room.  I'm sceptical for Stupid Lungs reasons, but I've never spent significant time in a room with that sort of heating.

I have also been sceptical of IR heating. If you used it as the only source of heat in your home, would it be damp & mouldy?
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 17 January, 2023, 06:10:39 pm
Going back to the article, this is one of the most interesting bits IMO:
Quote
Two competing heating systems are being tested inside: an electric-based system utilising infrared panels, some of which are disguised as ceiling coving, as well as a water-based system that uses heated skirting boards combined with an air source heat pump.

Is it more efficient to use electricity to heat the air directly, or to use air to heat water which in turn heats the air? We shall, perhaps, find out.

The point in those infrared panels is that they heat the humans directly with radiation, rather than through conduction by heating the air.  So you feel warm in a colder room, which uses less energy than heating the whole room.  I'm sceptical for Stupid Lungs reasons, but I've never spent significant time in a room with that sort of heating.

I have also been sceptical of IR heating. If you used it as the only source of heat in your home, would it be damp & mouldy?
My thoughts exactly. IME it's mostly encountered in outdoor spaces, such as pub terraces, where it makes sense (if you have to have heating at all). OTOH it surely heats solid objects (rather than specifically humans) so you'll still have warm walls, meaning mould and damp shouldn't be a problem.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 17 January, 2023, 06:22:19 pm
Mmm, I've just been reading some articles that say the same. Might be something worth trying as an experiment if you were getting an extension built for example.
Title: Re: Home energy saving tips /ideas...
Post by: Flite on 17 January, 2023, 06:27:29 pm
When we had big commercial glasshouses, we used long IR radiant heaters hung from the roof ridges.
They were very good for warming the plants and the workers.
Obviously a damp environment, but not excessively so for plant disease reasons.
Very controllable. Off is off, on is instant. Very robust units.
The big downside is that they were fuelled by LPG, as only realistic choice in a rural area.
If there was a domestic friendly version, I'd certainly consider them, especially for a new-build or big renovation project.
Title: Re: Home energy saving tips /ideas...
Post by: SteveC on 17 January, 2023, 07:00:55 pm
Re infrared heaters.
For a time, around the millennium, we used to hold our morris practices in a village hall which had them. Great for sitting around, but in midwinter when exercising grabbing a lungful of air which was basically at the same temperature as the outside (the hall was rather ramshackle) was not a good idea.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 18 January, 2023, 12:41:45 pm
My thoughts exactly. IME it's mostly encountered in outdoor spaces, such as pub terraces, where it makes sense (if you have to have heating at all). OTOH it surely heats solid objects (rather than specifically humans) so you'll still have warm walls, meaning mould and damp shouldn't be a problem.
Evaporating damp from a wall takes enough energy to provide the latent heat of evaporation, and you can't cheat physics.

The IR heating manufacturers are campaigning to get it recognised in the official category of low-carbon heating. It is not.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 22 January, 2023, 01:39:18 pm
My thoughts exactly. IME it's mostly encountered in outdoor spaces, such as pub terraces, where it makes sense (if you have to have heating at all). OTOH it surely heats solid objects (rather than specifically humans) so you'll still have warm walls, meaning mould and damp shouldn't be a problem.
Evaporating damp from a wall takes enough energy to provide the latent heat of evaporation, and you can't cheat physics.
But is it more efficient to heat the water and the walls, leaving the air cold, or to heat the air? Of course damp walls are only one consideration of domestic heating and probably not at all the main one.

Quote
The IR heating manufacturers are campaigning to get it recognised in the official category of low-carbon heating. It is not.
Surely that's going to depend on the source of the heat?
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 22 January, 2023, 08:28:10 pm
i just keep remembering my parents had no central heating when we grew up, neither did their parents etc.

I claim exemption from this reasoning, on the basis that I wouldn't have lived if I'd been born before about 1976, and would therefore have been spared a lifetime of poor circulation in my hands and feet.
It's the same reasoning we all face, just means you have no experience of two parts of the trilemma: you can comply with Tory ideology (turn up the heating or be held responsible for black mould etc), be rich enough not to care about it, or fast-forward to an idyllic passivehouse future.

I can't remember precisely when I last saw ice (not frost) on the inside of the bedroom windows in the morning, but it was probably in the early 1980s. Definitely after 1976. By then I was definitely old enough to not find it fun.
It's just occurred to me that I have seen ice on the outside of the tent when camping, but never inside. So tents are obviously warmer than houses.

Or perhaps not.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 24 January, 2023, 09:19:44 am
Been experimenting with the boiler flow temperature when it's only doing the rads, not the hot water cylinder.  To maintain a comfortable temperature when it's -3 outside, it needs to be turned up pretty high.  I don't have a clip-on pipe thermometer but I'd guess it's near 80 deg C.

This is a modern house with insulation to current standards and rads that are bigger than you find in most new houses.

Conclusions: low flow temps only work if you have laughably huge rads - and where can you fit them in small modern houses? - or you are willing to put up with a 17-18 deg living room.  If you're sitting at a laptop immobile all day, that's too cold.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 24 January, 2023, 09:23:45 am
Been experimenting with the boiler flow temperature when it's only doing the rads, not the hot water cylinder.  To maintain a comfortable temperature when it's -3 outside, it needs to be turned up pretty high.  I don't have a clip-on pipe thermometer but I'd guess it's near 80 deg C.

This is a modern house with insulation to current standards and rads that are bigger than you find in most new houses.

Conclusions: low flow temps only work if you have laughably huge rads - and where can you fit them in small modern houses? - or you are willing to put up with a 17-18 deg living room.  If you're sitting at a laptop immobile all day, that's too cold.
I agree about rad sizes.

Underfloor heating seems to be the answer.

17-18 seems over-hot to me. I'm not very well, but still, comfortable in about 16C.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 24 January, 2023, 09:46:45 am
WHO recommend 21 deg C for a sitting room, which feels about right.  Younger people can tolerate less (and if I were able to potter about, far less would be fine) but I'm chained to the desk by the tyranny of Microsoft Teams.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 24 January, 2023, 09:58:32 am
WHO recommend 21 deg C for a sitting room, which feels about right.  Younger people can tolerate less (and if I were able to potter about, far less would be fine) but I'm chained to the desk by the tyranny of Microsoft Teams.

I thought WHO recommend 22°C?

17-18 would be decidedly chilly, wrapped in blankets unable to function levels of chilly. 16 even more so.

Last week the sun came out and the passive solar gain of my south facing windows meant that the flat warmed up beautifully. The heating switched off, and the flat was 24°C. It was beautiful for the hour or so the sun stayed out.

J
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 24 January, 2023, 10:17:28 am
Quote
The World Health Organization in 1987 found that comfortable indoor temperatures between 18–24 °C (64–75 °F) were not associated with health risks for healthy adults with appropriate clothing, humidity, and other factors. For infants, elderly, and those with significant health problems, a minimum 20 °C (68 °F) was recommended. Temperatures lower than 16 °C (61 °F) with humidity above 65% were associated with respiratory hazards including allergies.[9][10]

The WHO's 2018 guidelines give a strong recommendation that a minimum of 18 °C (64 °F) is a "safe and well-balanced indoor temperature to protect the health of general populations during cold seasons", while a higher minimum may be necessary for vulnerable groups including children, the elderly, and people with cardiorespiratory disease and other chronic illnesses. The recommendation regarding risk of exposure to high indoor temperatures is only "conditional". Minimal-risk high temperatures range from about 21–30 °C (70–86 °F) depending on the region, with maximum acceptable temperatures between 25–32 °C (77–90 °F). [11] [12]
Wikipedia obvs
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 24 January, 2023, 10:20:01 am
But also:
Quote
The American Heritage Dictionary of the English Language identifies room temperature as around 20–22 °C (68–72 °F),[1] while the Oxford English Dictionary states that it is "conventionally taken as about 20 °C (68 °F)".[2] The ideal room temperature may vary by place and culture; studies from Nigeria show a comfortable temperature range of 26–28 °C (79–82 °F), comfortably cool 24–26 °C (75–79 °F) and comfortably warm 28–30 °C (82–86 °F).[3] Owing to variations in humidity and (likely) clothing, recommendations for summer and winter may vary; a suggested typical range for summer is 23–25.5 °C (73–78 °F), with that for winter being 20–23.5 °C (68–74 °F).[4] Some studies have suggested that thermal comfort preferences of men and women may differ significantly, with women on average preferring higher ambient temperatures.[5][6][7]

In the recent past it was common for house temperatures to be kept below the comfort level; a 1978 UK study found average indoor home temperatures to be 15.8 °C (60.4 °F) while Japan in 1980 had median home temperatures of 13 °C (55 °F) to 15 °C (59 °F).[8]
which indicates cultural variation
Title: Re: Home energy saving tips /ideas...
Post by: L CC on 24 January, 2023, 10:23:50 am
Just reading this thread (which is fairly monocultural) shows there's individual variation.

22 would have me falling asleep.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 24 January, 2023, 11:32:43 am
I set the temp to 19
Tartan blanket sorts out the sitting still in front of telly chill.
The map room usually sits around 17 in the morning (tiny 2 panel heaters that seem nowhere near enough but were probably sized pre-combi) after a bit with me and the work laptop (running 100% constantly cos shit spec) it's up to 20 despite the room with the thermostat having been up to temp a while.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 24 January, 2023, 12:09:16 pm
This is my current (Worcester Bosch Greenstar 30 si) boiler settings. My house is an old, small
two-bedroom terraced property. It has benefited from some new A+ rated double-glazed windows
last year. I generally set the thermostat to 19°c which normally keeps the house warm enough.

The hot water timer on the boiler has been switched off. The engineer who fitted it said that
function wasn't necessary, as without it on, hot water would only take a few seconds longer to arrive from the taps (and would possibly save a few pennies in the long-run). That was way back in January 2010.

Settings on radiator valves are at level II or  III (depending on which room it is located).

[Edit. Trickle vents on all windows are partially opened to aid airflow throughout the house and reduce humidity]

(https://live.staticflickr.com/65535/52646607043_539fbf9037.jpg)
Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 24 January, 2023, 12:14:00 pm
I set the thermostat to 18 (6.30am-10.30pm) which seems fine. Previous flat (bigger rooms, higher ceilings, no insulation or double glazing) was generally at 19.5. We're using about £1.50 a day in gas at the moment (heating, hot water and hob), which doesn't seem too bad.
Title: Re: Home energy saving tips /ideas...
Post by: MattH on 24 January, 2023, 12:51:24 pm
For heaters, there was a fairly interesting episode of "sliced bread" on the BBC talking about which portable heaters are the most energy efficient, spurred by the claims online for ceramic heaters.

https://www.bbc.co.uk/sounds/play/m001dxtx

Some of the methodology is a bit suspect, but it is interesting, especially talking about perceptions of warmth and how you are tempted to just "bump up" a heater's settings if you are getting direct heat, so it becomes less cost effective.
Title: Re: Home energy saving tips /ideas...
Post by: TimC on 24 January, 2023, 01:09:00 pm
Blimey. My 800 sq ft old thatched cottage (decently secondary double glazed - primary in a modern bathroom extension), is quite hard to get above 20C in the current cold snap. I wouldn't have it that warm anyway; the living rooms are set to 17C, the bathroom 16C and upstairs (two bedrooms, one reached through the other) are set to 12C. That cost me £513 in electricity in December 2022 (I have no wet heating, gas or oil), and that's now gone up as I'm on Economy 7. I'm anticipating £600+ for January.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 24 January, 2023, 01:17:02 pm
I set the thermostat to 18 (6.30am-10.30pm) which seems fine. Previous flat (bigger rooms, higher ceilings, no insulation or double glazing) was generally at 19.5. We're using about £1.50 a day in gas at the moment (heating, hot water and hob), which doesn't seem too bad.

That is very cheap.
I just checked, and over winter, we are using about £7  worth of oil a day. That is for a 5 bedroom detached house.

My SiL, in Oxfordshire, is shelling out £10 per day; and their house is smaller than ours.
Title: Re: Home energy saving tips /ideas...
Post by: ScumOfTheRoad on 24 January, 2023, 01:58:48 pm
I saw a youtube video about a model of Chinese heaters intended for workshop use. They looked well enough engineered and the bloke was running off red diesel.
He broadly hinted that this would be a cheap way to heat your house.
In the video he was careful to drill a hole in the wall for the exhaust.

Me, I think this is good for workshops and garages. But for homes it is a recipe for CO poisoning and fires.
And running off red diesel in your home... tsk tsk tsk

BTW these heaters all seem to be the same model, just with different cases depending on the brand selling them.
Title: Re: Home energy saving tips /ideas...
Post by: phantasmagoriana on 24 January, 2023, 02:43:29 pm
I set the thermostat to 18 (6.30am-10.30pm) which seems fine. Previous flat (bigger rooms, higher ceilings, no insulation or double glazing) was generally at 19.5. We're using about £1.50 a day in gas at the moment (heating, hot water and hob), which doesn't seem too bad.

That is very cheap.
I just checked, and over winter, we are using about £7  worth of oil a day. That is for a 5 bedroom detached house.

My SiL, in Oxfordshire, is shelling out £10 per day; and their house is smaller than ours.

Still on a fix from before the price hikes (this is only a 3 bedroom flat though). I'm not looking forward to this coming December when it ends! I'm torn between making the most of the heating while we can still afford it, and getting used to the cold in preparation...
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 24 January, 2023, 02:51:52 pm
I set the thermostat to 18 (6.30am-10.30pm) which seems fine. Previous flat (bigger rooms, higher ceilings, no insulation or double glazing) was generally at 19.5. We're using about £1.50 a day in gas at the moment (heating, hot water and hob), which doesn't seem too bad.
Very cheap. I'm paying about £5 per day for gas and I don't think I'm being extravagant with
my settings. Perhaps it's the Octopus tariff I have?
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 24 January, 2023, 07:53:19 pm
And running off red diesel in your home... tsk tsk tsk
I was under the impression that red Diesel is legal heating. Oil heaters often use kerosene instead of red Diesel but there's not much difference in characteristic or price.

My parents' house was heated with red Diesel until they changed to gas. I remember having to clear the wax from the filter several times in the cold winter of 1978.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 24 January, 2023, 08:09:03 pm
I set the thermostat to 18 (6.30am-10.30pm) which seems fine. Previous flat (bigger rooms, higher ceilings, no insulation or double glazing) was generally at 19.5. We're using about £1.50 a day in gas at the moment (heating, hot water and hob), which doesn't seem too bad.

That is very cheap.
I just checked, and over winter, we are using about £7  worth of oil a day. That is for a 5 bedroom detached house.

My SiL, in Oxfordshire, is shelling out £10 per day; and their house is smaller than ours.

Still on a fix from before the price hikes (this is only a 3 bedroom flat though). I'm not looking forward to this coming December when it ends! I'm torn between making the most of the heating while we can still afford it, and getting used to the cold in preparation...

When I was round on Boxing Day my gran was past £10 for the week... Boxing day was monday, electric resistance heating and 86 year old warmth FTW.
That's a small ground floor flat though, i suspect her upstairs neeburs heating is considerably cheaper.

December I managed to average 3.50 a day on gas  :o
Last january it was 1.20 but then the average temperature was around 5 not -5
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 25 January, 2023, 07:44:44 am
And running off red diesel in your home... tsk tsk tsk
I was under the impression that red Diesel is legal heating. Oil heaters often use kerosene instead of red Diesel but there's not much difference in characteristic or price.

My parents' house was heated with red Diesel until they changed to gas. I remember having to clear the wax from the filter several times in the cold winter of 1978.

Recalling from the 15 years or so that I heated houses by oil - there were 2 types of oil - 28 second and 35 second (the measure being some sort of viscosity IIRC) - 35second was in effect red diesel and 28 second paraffin/kerosine.
Title: Re: Home energy saving tips /ideas...
Post by: JellyLegs on 25 January, 2023, 08:29:03 am
Red diesel is a legal fuel for heating in domestic premises but not commercial buildings.  If your appliance will burn 28 sec heating oil (kerosene) then that is almost always cheaper than 35 sec(red diesel).

I have seen several people recommending those Chinese heaters mentioned above but also an informative video showing calculations saying that the claimed heat output was something like double the maximum possible based on the claimed fuel usage.  I wouldn’t touch them and that is before you get to the safety concerns.
Title: Re: Home energy saving tips /ideas...
Post by: Polar Bear on 25 January, 2023, 08:33:20 am
There is a podcast on the BBC (Sliced bread) about those little plug in  ceramic convection heaters.  The conclusion is that they will work well in a very small, confined space but will not heat a room anywhere near to the extent of the claims.

The overall best solution to single room heating was marginally the oil filled radiator.

I must add that they tested a few options including fan heaters at Octopus's research site and did not simply plug them in in the studio and give a subjective opinion.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 25 January, 2023, 03:52:32 pm
Meanwhile, most of the windows in the sheltered housing at the back of my house are wide open, presumably because heating is included in their rent.  You can't fix stupid.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 26 January, 2023, 07:00:41 pm
Meanwhile, most of the windows in the sheltered housing at the back of my house are wide open, presumably because heating is included in their rent.  You can't fix stupid.

Possibly they don't get any control over the heating, and thus the options are accept what ever temp is set for everyone, or open a window.

I've seen this with university halls of residences. It's also worth noting that some cultures think you need to open a window for at least ten minutes every morning. It's very weird...

J
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 30 January, 2023, 04:53:42 pm
Well, this weekend the loan and the cashback for our insulation FINALLY arrived in our bank.
14 months after I first started trying to get insulation.
6 months after I paid for the insulation.
4 months after I sent the claim forms and new EPC in to prove the work had been done.

I mean it's a great idea, but you're pretty much stuffed if you are ill, have mental health issues, a deficit of spoons or are just generally not very resilient. And if you have cash flow problems and can't afford the wait between a potential payment upfront or getting grief from the installers for not getting paid I imagine that would be even more stressful.
Title: Re: Home energy saving tips /ideas...
Post by: barakta on 30 January, 2023, 05:53:06 pm
Yup, a friend has been without boiler for a month waiting for this scheme. I did warn her of your awful waiting time, but she's determined not to pay cos she's eligible on benefits basis for it... But she's bastard miserable and the cold has really affected her physical and mental health.

The scheme is a disgrace if it can't function quickly and effectively.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 30 January, 2023, 05:57:24 pm
Hopefully she doesn't have to wait much longer. I don't know if the scheme for people on benefits is administered any differently or not. I believe since the revised funding announcement in December they are going for more upfront funding rather than retrospective but I'm not sure if that's only for certain things.

ETA, having read it again that's incorrect. They're just offering a grant without the need to take out a loan as well. Bet it doesn't change the fact you have to get the work done and provide all the docs before you get the money.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 30 January, 2023, 06:56:56 pm


And then they wonder why more people don't take advantage of schemes like this.

Wish government put just a little more effort into making support schemes easier for people to use.

J
Title: Re: Home energy saving tips /ideas...
Post by: barakta on 30 January, 2023, 06:57:04 pm
Not sure of the latest details but there was a 5 week wait for assessment, then there's now apparently a 3+ month wait for 'warmer homes' to actually cough up the grant to get a new boiler. Fine if you are replacing an old but working boiler, not fine for a no-boiler situation in winter.

Friend could cash in her (permitted on benefits) savings, so I suspect she'll end up doing that cos 3 more months of no heating in winter in Scotland is going to be too bad for her health. Some others would have no choice which is a grim thought.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 30 January, 2023, 07:01:31 pm
And then the companies contracted to provide advice go bust...
https://twitter.com/paullewismoney/status/1619944454319898624?t=zUMGQydFnFEo2Cc_eHcDcg&s=19
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 30 January, 2023, 07:20:46 pm
And then the companies contracted to provide advice go bust...
https://twitter.com/paullewismoney/status/1619944454319898624?t=zUMGQydFnFEo2Cc_eHcDcg&s=19

The maths on that doesn't make sense. Apparently it's 600 jobs lost.

A £700k contract would give each of those 600 £1166.67 was the contract only for 2 weeks ?

J
Title: Re: Home energy saving tips /ideas...
Post by: barakta on 30 January, 2023, 08:30:11 pm
Looks like the director has form for this.

Why is our government allowing people with such awful scammy history to get these contracts rather than existing organisations with a good track record?
Title: Re: Home energy saving tips /ideas...
Post by: cygnet on 30 January, 2023, 09:23:19 pm
Due diligence hasn't been applied by the government for some time now.  >:(
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 30 January, 2023, 09:24:40 pm

Why is our government
FTFY
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 30 January, 2023, 09:37:23 pm

Why is our government
FTFY
POTD!
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 31 January, 2023, 09:57:48 pm
Sarah Go Green on Twitter borrowed a thermal imaging camera off Octopus to discover why her bedroom was so freezing after the developer who built her house refused to admit there was anything wrong. Turns out they'd not insulated the loft properly.
https://twitter.com/sarah_go_green/status/1620418499888971776?t=Q1aBnfkZW8tZrDIqRfRkuA&s=19
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 31 January, 2023, 11:54:39 pm
If you can borrow one of those do, it is enlightening.  I thought the new build (1997 is well new in this abode) extension would be reasonably insulated. Is it arse.  You can get figures using an infrared thermometer but they are hard to believe.  They are accurate but this human at least didn't believe the piss poor surface temperatures I was reading inside on a cold day.  Seeing the pictures after I later invested in a Seek Thermal removed all doubt.

I'd post some horrifying thermal & visual shots from this winter but my photo hosting seems to be titsup.  By horrifying I mean 7 degrees internal surface temperatures.

(Mrs P, if you have a USB C phone of recent vintage and you can root it to get USB OTG access then you'd be welcome to borrow the Seek)
Title: Re: Home energy saving tips /ideas...
Post by: Ham on 01 February, 2023, 09:04:18 am
Serious thought here about how to improve our Victorian semi.

#1 - Replace boiler. Current boiler is ~22 years old, but was class leading at 78% efficiency when we installed. Change to Condensing at 93% efficiency should lead to 20% improvement.

#2 - change our front sashes to slimline double glazed (12mm deep, argon/other gas filled). Units can be bought for about £1,300, not sure about the fitting cost. Uncertain benefit, but 6m2 of single pane glass does a lot to cool a room.

#3 - improve draftproofing on front door, consider if some sort of secondary glazing might be an idea for the stained glass, without making it look too naff.

Well, the results are in for #1, with two full months on a new boiler.

Clearly there is difficulty comparing one year with the next, but average temperatures haven't been that different year on year (if anything, cooler this year). Our comfort level has, if anything, increased yoy as this year we have been far more sedentary  with Mrs Ham - she with the Ice Maiden extremities - still recovering from her ankle op in August. Hot water has been tuned down a little, flow temperature is lower than the old. Heat input into room implicated in #2 up there ^^ has been increased by the addition of another radiator, which enables curtains to be closed, makes the room cosy so stops Mrs Ham from whacking up the stat to the rest of the house to get the front room warm. We have shut off heating to rooms that aren't used and improved drafts on one or two doors.

So the overall result calculated based on average daily consumption - saving 19% in Dec and 21% in Jan is amusingly close to the expectation. I'll take that as a win.

Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 01 February, 2023, 11:02:25 am
If you can borrow one of those do, it is enlightening.  I thought the new build (1997 is well new in this abode) extension would be reasonably insulated. Is it arse.  You can get figures using an infrared thermometer but they are hard to believe.  They are accurate but this human at least didn't believe the piss poor surface temperatures I was reading inside on a cold day.  Seeing the pictures after I later invested in a Seek Thermal removed all doubt.

I'd post some horrifying thermal & visual shots from this winter but my photo hosting seems to be titsup.  By horrifying I mean 7 degrees internal surface temperatures.

(Mrs P, if you have a USB C phone of recent vintage and you can root it to get USB OTG access then you'd be welcome to borrow the Seek)

My hoose is similar age
What was the outside temperature adn the heated air temperature inside
I found my external walls around 15 with air temp of 19 and outside -4
but there's gaping holes in the wall due to poor filling of holes drilled and therefore the howling gale round the timber frame isn't doing it's job too well.
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 01 February, 2023, 01:12:40 pm
Mine is solid stone construction.  I took the thermal images on 18th Dec and it was 2.9 degrees outside at the time.  We were in the run of really cold nights, we hit double digits negative a few times but the previous night we'd only hit -7.  Internal target temp is 18.5 degrees, it would have been below that, 17 at a guess.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 01 February, 2023, 01:24:05 pm
 :o
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 01 February, 2023, 04:36:23 pm
Yeah, that's what I felt about it too.  That wall faces onto a neighbors property, I've started mentioning the possibility of external insulation which would steal about 200mm at the end of his land.  He seems amenable.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 01 February, 2023, 05:09:44 pm
SoreTween, thanks for the offer but I have an IR thermometer and that's probably close enough. I think I posted here last winter about the cool readings on the flat roof section of our bedroom ceilings, which need upgrading but that's a tradesman for another year. I figure I'll wait until the roof felt is a bit older while I have other more exciting priorities for my money.

@Ham, sounds like a good result!
Title: Re: Home energy saving tips /ideas...
Post by: ian on 11 February, 2023, 07:50:45 pm
Our first ever £1000+ energy bill since the time when they muddled the units on the meter. I wouldn’t mind if I had the thermostat set to Caribbean.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 11 February, 2023, 07:59:42 pm
Our first ever £1000+ energy bill since the time when they muddled the units on the meter. I wouldn’t mind if I had the thermostat set to Caribbean.

For what period?

J
Title: Re: Home energy saving tips /ideas...
Post by: diapsaon0 on 11 February, 2023, 08:15:40 pm
I haven't turned my heating on at all this winter - just piled on extra layers of clothes.  Hope we're on the home straight now.  15.8C indoors now.  Got down to 9C before Christmass.
Title: Re: Home energy saving tips /ideas...
Post by: Snakehips on 11 February, 2023, 09:12:03 pm
I haven't turned my heating on at all this winter - just piled on extra layers of clothes.  Hope we're on the home straight now.  15.8C indoors now.  Got down to 9C before Christmass.
Excellent. I had a couple of heating free days recently. Mrs Snake was away.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 11 February, 2023, 09:19:18 pm
I'm having a heating-free weekend at Larrington Towers, because I’m at Fort Larrington.

[“That's cheating!” – Ed.]
Title: Re: Home energy saving tips /ideas...
Post by: ian on 11 February, 2023, 10:03:44 pm
Our first ever £1000+ energy bill since the time when they muddled the units on the meter. I wouldn’t mind if I had the thermostat set to Caribbean.

For what period?


Last three months.  Used to be about £700.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 11 February, 2023, 10:08:58 pm
I haven't turned my heating on at all this winter - just piled on extra layers of clothes.  Hope we're on the home straight now.  15.8C indoors now.  Got down to 9C before Christmass.

Does that not cause damp problems?
Title: Re: Home energy saving tips /ideas...
Post by: hubner on 11 February, 2023, 10:19:19 pm
Open the windows.

You only get damp if you live in sealed box.

 ;D
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 11 February, 2023, 10:41:27 pm
Open the windows.

You only get damp if you live in sealed box.

 ;D

I'll turn the heating on, life's too short to be uncomfortable.

J
Title: Re: Home energy saving tips /ideas...
Post by: toontra on 11 February, 2023, 11:31:10 pm
Mine's off most of the time and use extra layers, but when I start to feel cold (i.e. when sitting for extended periods) it goes on at 16c.  Getting properly cold isn't just bloody miserable - it also carries health risks.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 11 February, 2023, 11:39:38 pm
Mine's off most of the time and use extra layers, but when I start to feel cold (i.e. when sitting for extended periods) it goes on at 16c.  Getting properly cold isn't just bloody miserable - it also carries health risks.

It's this health risk thing that's scaring me. I'm seeing a sort of "I'm better than you" pissing contest about who can use their heating the least, as well as many people who are left having to choose between heating and eating, and it's just leaving people much much more susceptible to illness. Studies by the WHO and UN have shown as much as a 10% increase in respiratory illness risk for every 1°c below 22°C. Sitting for extended periods of time at some of the crazy temps I'm seeing people boast of here sounds terrifying. Not to mention aren't your hands so bloody cold you can't do anything? Or do people read books with gloves on ?

Wish people put more effort into low carbon, highly efficient heating systems for the masses.

J
Title: Re: Home energy saving tips /ideas...
Post by: hubner on 12 February, 2023, 12:47:17 am
Open the windows.

You only get damp if you live in sealed box.

 ;D

I'll turn the heating on, life's too short to be uncomfortable.

J

I suppose all 8 billion people on earth don't want to be "uncomfortable" either.
Title: Re: Home energy saving tips /ideas...
Post by: Paul H on 12 February, 2023, 08:56:11 am
It's this health risk thing that's scaring me. I'm seeing a sort of "I'm better than you" pissing contest about who can use their heating the least, J
It does jump to extremes.  It's a shame it's needed the price hikes for some people to look at their consumption and when they have many found ways to reduce it  without impacting their comfort or health. While it was cheap enough, lots of people just didn't bother, you're an example of that, so unaware of your usage you've been paying nearly twice the capped price for years without questioning why.   
I'm comfortable in my small flat, there's a storage heater running on the lowest setting to stop it ever getting really cold and that's supplemented with oil filled radiators when required. I've never worn gloves or a coat inside, I'd consider doing so as daft as not wearing a jumper when it's cold.
Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 12 February, 2023, 02:09:00 pm
There is a generally held view that energy has never been expensive enough.  Not many people have ever really had to think about whether they do or don’t turn the heating on.  See also, people happily idling their cars whilst doing other jobs.

Of course we have seen extreme price shocks and market intervention but it makes me wonder if a steady increase in prices over several years would have been noticed in the same way.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 12 February, 2023, 04:06:01 pm
I think we've had the heating on more this winter than last, because with the new (but still minimal) insulation, it actually makes a difference.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 12 February, 2023, 04:30:35 pm
There is a generally held view that energy has never been expensive enough.  Not many people have ever really had to think about whether they do or don’t turn the heating on.  See also, people happily idling their cars whilst doing other jobs.

Of course we have seen extreme price shocks and market intervention but it makes me wonder if a steady increase in prices over several years would have been noticed in the same way.

Would you say the same thing about food? I don't think the price of energy hasn't been high enough. I think the fact that fossil fuels have been too cheap is a problem tho. Cheap, Sustainable energy is here, it's available. But just as William Gibson's view on the future, it's just not evenly distributed yet.

We should be working together, collectively so that we can all live comfortably. Rather than a smug "Just wear a jumper" I think we should be asking, how can we distribute an energy efficient, low carbon, sustainable future to everyone. My flat is comfortably warm because I'm lucky enough to live somewhere where we have district heating that uses waste heat from industry to heat our homes. Technologies like this are relatively unheard of in the UK. There should be a massive publically funded push to give people home insulation, to give people heat pumps, to setup district heating systems. A wish to be comfortable should not be a radical position.

I suppose all 8 billion people on earth don't want to be "uncomfortable" either.

Exactly. We should be working to reduce suffering across the world. That means tackling climate change before it inflicts more suffering on the most vulnerable on our planet.

J
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 12 February, 2023, 04:36:59 pm
I think "wear a jumper" is saying put on appropriate clothes first and only after that put the heating on. When people are complaining of cold but only wearing a t-shirt in December, "wear a jumper" is very sensible.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 12 February, 2023, 04:42:30 pm
I think "wear a jumper" is saying put on appropriate clothes first and only after that put the heating on. When people are complaining of cold but only wearing a t-shirt in December, "wear a jumper" is very sensible.

What if I was to tell you that we could build homes that use very little energy input and could be warm enough that people could choose not to need to put on a jumper?

A lot of housing stock is awful, and even stuff being built now is being built well below what it should be in terms of energy efficiency.

J
Title: Re: Home energy saving tips /ideas...
Post by: Paul H on 12 February, 2023, 06:15:56 pm
Of course we have seen extreme price shocks and market intervention but it makes me wonder if a steady increase in prices over several years would have been noticed in the same way.
I think for many it would have been easier to absorb, but those struggling to heat their homes would still be in that position however gradual the price increases had been.
I also think subsidising the unit price was the wrong thing to do, some still can't afford the basics whilst others are having their luxuries subsidised.  Even if the intention was to subsidise everyone, rather than targeted, the same expense could have provided a more generous subsidy capped at a reasonable level. 
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 12 February, 2023, 06:23:31 pm
I think "wear a jumper" is saying put on appropriate clothes first and only after that put the heating on. When people are complaining of cold but only wearing a t-shirt in December, "wear a jumper" is very sensible.

What if I was to tell you that we could build homes that use very little energy input and could be warm enough that people could choose not to need to put on a jumper?

A lot of housing stock is awful, and even stuff being built now is being built well below what it should be in terms of energy efficiency.

J
Yes, wonderful. Have I told you that the second best thing about living in India was never having to wear many clothes? But as we don't have those houses, putting on a jumper (and even a fleece on top of that) should come before putting the heating on so you can sit in a t-shirt in January.
Title: Re: Home energy saving tips /ideas...
Post by: Jaded on 12 February, 2023, 07:01:02 pm
On Call The Midwife they all had thick wooly jumpers, so I think we didn't go about in T-Shirts back then.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 12 February, 2023, 07:12:02 pm
That's definitely true. The midwives carried special newborn-baby sized woolly* jumpers for the babies. Made of newborn baby lambs' wool. Or lamb's wool. How many newborn lambs would it take to provide enough wool for a jumper for a newborn human?

*Definitely woolly, not wooly, unless you're American. And not wolly, cos wols don't have wool, and feathers are hard to knit.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 12 February, 2023, 07:34:14 pm
On Call The Midwife they all had thick wooly jumpers, so I think we didn't go about in T-Shirts back then.

We did, but they were underwear.

It was not unusual to wear a T-shaped shirt or vest, a shirt, a woollen tank top or waistcoat, and a jacket. Indoors.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 12 February, 2023, 07:39:22 pm
On Call The Midwife they all had thick wooly jumpers, so I think we didn't go about in T-Shirts back then.

And in 1960, the infant mortality rate was 24 per 1000 live births, vs 3.422 per 1000 live births in 2022.

Just because we did something in the past doesn't mean we should shun modernity.

We also didn't have mobile phones, or home computers, or colour television, etc...

J
Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 12 February, 2023, 08:11:40 pm
Of course we have seen extreme price shocks and market intervention but it makes me wonder if a steady increase in prices over several years would have been noticed in the same way.
I think for many it would have been easier to absorb, but those struggling to heat their homes would still be in that position however gradual the price increases had been.
I also think subsidising the unit price was the wrong thing to do, some still can't afford the basics whilst others are having their luxuries subsidised.  Even if the intention was to subsidise everyone, rather than targeted, the same expense could have provided a more generous subsidy capped at a reasonable level.

I think not means testing the subsidies was a mistake.  Both BEIS and the energy suppliers said it couldn’t be delivered in time.  As I have mentioned I have been receiving the £400 credit despite the fact that I fixed my energy tariff at the end of 2021 and I can afford to pay my bills.  This seems daft.  I did think, with 6 months to work on it, a fairer system would be brought in but it seems that’s not going to happen.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 12 February, 2023, 08:16:43 pm
Except means testing always serves as a barrier to the people who need it the most.

Perhaps some sort of system based on your overall energy use could have been fairer, but while the heavy users are overwhelmingly going to be richer, there will be some exceptions.

Obviously a better approach would be to stop mucking about with people's electricity bills and do it through the tax system instead.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 12 February, 2023, 08:39:36 pm

I think not means testing the subsidies was a mistake.  Both BEIS and the energy suppliers said it couldn’t be delivered in time.  As I have mentioned I have been receiving the £400 credit despite the fact that I fixed my energy tariff at the end of 2021 and I can afford to pay my bills.  This seems daft.  I did think, with 6 months to work on it, a fairer system would be brought in but it seems that’s not going to happen.

As much as it pains me to say it, I think the non means tested setup is the right approach. Means testing will take too long, and it will create too many edge cases. We've seen how bad many government subsidy schemes are, look at how many people don't get the cycle to work scheme cos they fell through the edge case cracks. Or the difficulty people have had getting home energy improvement funding from the government.

While there are some people like yourself who really don't need it, there's far more people who might have missed out if the payment was means tested. Better to help everyone, rather than mess around trying to make sure only the deserving get it.

J
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 12 February, 2023, 08:56:21 pm

Obviously a better approach would be to stop mucking about with people's electricity bills and do it through the tax system instead.

Or better yet. Give everyone the 400 quid, but also tax the energy companies like BP and shell everything they made over the first billion.

J
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 12 February, 2023, 10:06:16 pm

I think not means testing the subsidies was a mistake.  Both BEIS and the energy suppliers said it couldn’t be delivered in time.  As I have mentioned I have been receiving the £400 credit despite the fact that I fixed my energy tariff at the end of 2021 and I can afford to pay my bills.  This seems daft.  I did think, with 6 months to work on it, a fairer system would be brought in but it seems that’s not going to happen.

As much as it pains me to say it, I think the non means tested setup is the right approach. Means testing will take too long, and it will create too many edge cases. We've seen how bad many government subsidy schemes are, look at how many people don't get the cycle to work scheme cos they fell through the edge case cracks. Or the difficulty people have had getting home energy improvement funding from the government.

While there are some people like yourself who really don't need it, there's far more people who might have missed out if the payment was means tested. Better to help everyone, rather than mess around trying to make sure only the deserving get it.

J

It doesn't pain me to say that not means-testing for anything is definitely the most equitable way. The low income person gets it for free, the middle income person gets it but pays it back through tax and the high income person pays it back several times over*. It's going to ensure the people who need it, get it, without jumping through hoops, and for all the reasons you and Kim said. It's also way cheaper as you don't have to work out who should get it or chase down people who shouldn't have. This is how the NHS works after all.


*note I said income not "rich" - tax dodges etc. notwithstanding.
Title: Re: Home energy saving tips /ideas...
Post by: Paul H on 13 February, 2023, 06:55:12 am
It doesn't pain me to say that not means-testing for anything is definitely the most equitable way.
The point I was making about the poor application of subsidies mainly concerned the Energy Price Guarantee where every unit is subsidised, rather than the £400 discount which most households received.  The price guarantee isn't equitable, the more you use the bigger your discount, while in most cases those in greater need were always likely to be lower users.  Some are being subsidised to heat their swimming pool, run patio heaters, charge the Tesla... while others still can't afford to heat their homes and cook their meals.   A tiered pricing structure, where the first X number of units received a higher subsidy and any usage over that is at full cost, or tapered, would have been equitable and may have discouraged unnecessary consumption.  Those with minimal consumption, often the poorest, would have benefited from the same discount in financial terms which would be a higher proportion of their bills. 
Of course the tax and benefits system should be reformed to redistribute some of the wealth, both from individuals and corporations, but these subsidies were a short term measure brought in to address a specific issue and for many they've failed to do that. 
Quote
The low income person gets it for free, the middle income person gets it but pays it back through tax and the high income person pays it back several times over*.
Is there an assumption there that everyone stays in the same bracket?
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 13 February, 2023, 11:09:11 pm

Today my flat hit 25.4°C with the heating off.

Why? Cos the sun came out.

As a fluke of the design (I'm pretty sure it wasn't intentional), the south facing windows and the low winter sun work to take advantage of the passive solar gain.

This is the sort of thing I mean when I talk about better designs of buildings.

J
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 14 February, 2023, 06:57:50 am
My house self-heats on sunny days but it's a PITA in summer.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 14 February, 2023, 11:01:32 am
My house self-heats on sunny days but it's a PITA in summer.

Yeah, that's a clear sign that it was not an intended feature. If it was they would have designed it to allow the winter sun in, but blocked the high angle of the summer sun. A brise solai is the fancy name for the architectural feature they would use.

J
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 14 February, 2023, 11:11:23 am
The furnace of a conservatory does mean that scavenged wood can be chopped into logs in spring and be ready for burning by autumn.  I cut down a dead eucalyptus and cherry in the front garden and they were at around 0% moisture - too dry really - after summer.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 14 February, 2023, 12:41:36 pm
Good for drying clothes too.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 16 February, 2023, 12:25:17 am
An innovation:

After several mechanical fridge thermostats failing over the years, I have replaced it with my own IoS controller out of general spite.  (Usual rules apply: homebrew hardware, homebrew code, runs locally with no Devil's Radio or cloudy nonsense, isolate from mains before removing cover).

(https://www.ductilebiscuit.net/gallery_albums/alerter/2023_02_09_22_11_29.sized.jpg)

I've been tweaking parameters over the last week or so, and I think I've worked the most egregious bugs out of it (the thermostat set itself to NAN°C the other night, which was amusing).

Other than shiny monitoring and kicking up a fuss if someone doesn't close the door properly, the main benefit seems to be that the control loop can be much tighter, with less drastic swings in temperature.  Which, in spite of making an effort to keep the freezer temperature vaguely sane (the old thermostat purely operated on the fridge temperature) and therefore keeping the average fridge temperature a bit lower, seems to result in a modest energy saving, presumably because the compressor isn't chugging away against diminishing returns to get the temperature low enough to switch off.  (It's also saving about 3 watts overall by not constantly heating the thermostat with a power resistor.)

I'm also expecting vastly improved long-term stability against weather changes, because it's measuring the absolute temperature in degrees SCIENCE with digital band-gap wossnames, not tweaking a springamathing against a bimetallic strip with a knob calibrated in whatever the refrigeration equivalent of gas marks is, which gets knocked every time barakta puts the sweet chilli sauce back on the top shelf.

(https://www.ductilebiscuit.net/gallery_albums/alerter/fridge_power_new_thermostat.sized.png)
(New controller put into operation on the 10th)

The other thing, which I did strictly as an experiment (our electricity tariff is a flat rate) was to see if adjusting the setpoint of the thermostat according to the real-time price of electrons[1] (=> the load on the grid) was practical.  It seems to work reasonably well, cooling down by an extra couple of degrees overnight and in the early afternoon, so it can keep the compressor mostly off and allow the temperature to rise slightly during peak times, maintaining a reasonable average temperature...

(https://www.ductilebiscuit.net/gallery_albums/alerter/fridge_o_matic_graph.png)
(Graph from the controller itself: The lines are hopefully self-explanatory.  The shaded blue areas are when the compressor is running.  The blue dots at the top are the fridge door being opened, and the green dots are fetching electricity price data.  There would be red dots if someone had opened the freezer.)

A follow on from this, since I'd included a power monitor, was the ability to switch off automatically if the supply voltage drops too low.  Because the students are back and the local substation needs all the help it can get.

In summary: Mechanical thermostats are rubbish.  There's at least one good reason to connect your fridge to the internet.  No I wouldn't buy one that did.


[1] Obtained from the Octopus API for one of the Agile tariffs.
Title: Re: Home energy saving tips /ideas...
Post by: road-runner on 16 February, 2023, 03:18:09 pm
Kim, I didn't think I could be more impressed by your technical know-how but you have just upped my esteem of your abilities to somewhere off the scale. Very well done!
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 16 February, 2023, 04:32:47 pm
Yeah, well, I didn't mention the bit where I got the pinout for all the transistors wrong, necessitating fitting them upside-down and rotated by 120°, using solder-blob technology   :facepalm:   :-[
Title: Re: Home energy saving tips /ideas...
Post by: Snakehips on 16 February, 2023, 04:54:01 pm
Kim, I didn't think I could be more impressed by your technical know-how but you have just upped my esteem of your abilities to somewhere off the scale. Very well done!
Agreed. Even with the frank admission about the use of solder blobs.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 16 February, 2023, 05:34:18 pm
I don't think I'm particularly good at any of this stuff, my main skill is that I'm a cynic about reliability and stubborn enough to actually finish projects.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 16 February, 2023, 07:34:00 pm
I don't think I'm particularly good at any of this stuff,

Oh, you are. That's both amazing and useful.

I remember being incredibly disappointed when I bought a posh fridge with digital display to find out the temperatures it displayed were nothing to do with the actual temperatures in the fridge or freezer, just a vague aspiration of the thermostat. A box of tricks like yours would be a fairly minimal addition in a high end fridge but I don't see it happening any time soon.

Quote
A follow on from this, since I'd included a power monitor, was the ability to switch off automatically if the supply voltage drops too low.

My current low-tech ancient 12V fridge does this, then flashes a blinkenlight for the next couple of days to say that it's done so. Which confused me no end until I found the model number and goooogled the instructions. Now I know to switch off the fridge before hoovering (again, ancient hoover, 1200W, not battery-friendly).
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 16 February, 2023, 10:28:58 pm
I think we've had the heating on more this winter than last, because with the new (but still minimal) insulation, it actually makes a difference.
It seems this is an example of the Jevons paradox:
Quote
In economics, the Jevons paradox (/ˈdʒɛvənz/; sometimes Jevons effect) occurs when technological progress or government policy increases the efficiency with which a resource is used (reducing the amount necessary for any one use), but the falling cost of use increases its demand, increasing, rather than reducing, resource use.[1]
https://en.wikipedia.org/wiki/Jevons_paradox
Title: Re: Home energy saving tips /ideas...
Post by: fruitcake on 17 February, 2023, 01:17:34 pm
I don't think I'm particularly good at any of this stuff...

I think that's interesting. To those of us who can't do this stuff, those who can do it seem very good at this kind of thing. But then, they would, wouldn't they. And to those who can do this stuff, the stuff they've done doesn't seem difficult, because they can do it. Which may show we're rarely the best judge of our own capabilities. (Don't get me started on those questionnaires that ask people to assess their personal attributes. I'm looking at you, HR departments.)

I reckon the only thing approaching a 'benchmark' for our own capability is when we're bemused at most people's inability to do tasks that seem really easy, because only then do we realise we have a high level capability or an aptitude for that kind of task.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 17 February, 2023, 01:26:45 pm
I don't think I'm particularly good at any of this stuff...
I think that's interesting. To those of us who can't do this stuff, those who can do it seem very good at this kind of stuff. But then, they would. And to those who can do this stuff, none of it seems difficult, because they can do it.

Dunning-Kruger effect, I suppose.  I know enough about  a) programming  and  b) hardware  to know that I'm really not 1337.  But elegance is secondary to reliability, and it's easy to build over-engineered one-off pieces of hardware when you aren't optimising for cost, ease of manufacture[1] or whatever compliance.


[1] Not strictly true, of course.  Using off-the-shelf modules for, say, power supplies or network interfaces is a different kind of optimisation that makes sense in small volumes.  Similarly, choice of connectors to avoid having to drill square holes is important when you're making panels by hand.
Title: Re: Home energy saving tips /ideas...
Post by: T42 on 17 February, 2023, 01:42:12 pm
I don't think I'm particularly good at any of this stuff, my main skill is that I'm a cynic about reliability and stubborn enough to actually finish projects.

Healthy engineer's approach. Hat off.
Title: Re: Home energy saving tips /ideas...
Post by: fruitcake on 17 February, 2023, 01:47:34 pm
Awesome proof of concept though, Kim, not least because it shows how poorly controlled fridges are currently. And so many of them don't stay at the 1 to 5 C range they're meant to, at least not at the top shelf _and_ the bottom shelf. (Frozen cucumber, anyone?)

On the subject of fridge design, I've always wondered why they are side loading rather than top loading. We know chest freezers are more efficient. Will I be able to buy a chest fridge in future?
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 17 February, 2023, 01:53:01 pm
I expect that's to do with access given they're usually installed cupboard-fashion.
Title: Re: Home energy saving tips /ideas...
Post by: fruitcake on 17 February, 2023, 02:08:24 pm
I could imagine a chest fridge as a stand alone unit beside a kitchen worktop, or an integrated version with a section of worktop on the lid. And I can just about imagine refrigerated drawers beneath worktops. 
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 17 February, 2023, 02:11:49 pm
I could imagine a chest fridge as a stand alone unit beside a kitchen worktop, or an integrated version with a section of worktop on the lid. And I can just about imagine refrigerated drawers beneath worktops.

Refrigerated drawers in kitchen cabinets are a thing, and have been for quite a while . . .  but not sure how effective they are with seals etc?
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 17 February, 2023, 02:15:02 pm
Presumably it's more efficient to refrigerate one area of 2n m3 than two areas of n m3? Plus, separate drawers won't cope very well with irregularly shaped items. How that stacks up against lower losses from opening just one drawer (assuming you get the right one!) rather than the whole fridge-sized door, I won't even begin to guess.
Title: Re: Home energy saving tips /ideas...
Post by: Lightning Phil on 17 February, 2023, 02:34:35 pm
Here’s a tip

1. Have your gas smart meter stop sending those 1/2 hour readings
2. Report this to energy company
3. Attempt to read meter by physically accessing meter and pressing menu buttons but it just says battery door open.  Fail to spot any battery door that could be open. Can’t get manual reading. Report to energy company with photos and video. They do nothing.
4. Energy company gets reading at end of month and claims nothing wrong with smart meter. Get told your IHD isn’t working when neither app or website show energy usage either
5, The next month energy company get monthly reading from gas smart meter and it’s exactly same as month ago. As in it’s claiming zero gas usage in winter..
6. For the umpteenth time you contact them but they say meter working.
7. New energy company (Octopus) take over
8. You contact them with a summary of events. They agree meter needs replacing but need to talk to manager.
9. They get back. As it’s not an Emergency (Gas still works) it’ll be 3-4 further weeks before they’ll be able to get any engineer out.

Now has the smart meter been recording anything at all, or has it essentially been unmetered gas?.   Find out 3 months after the whole saga started when they eventually come to replace meter. I shall be overlooking them doing it, to see if it has any reliable reading the engineer can drag out if it.

If it has been unmetered it’ll be an interesting discussion.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 17 February, 2023, 02:57:11 pm
We got a lot of unmetered electricity in a previous flat -- the very unsmart meter ticked round from time to time, but missed about 90% of our usage. Eventually they replaced the meter, of course, but there was no talk of our paying anything back.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 17 February, 2023, 03:07:46 pm
Awesome proof of concept though, Kim, not least because it shows how poorly controlled fridges are currently. And so many of them don't stay at the 1 to 5 C range they're meant to, at least not at the top shelf _and_ the bottom shelf. (Frozen cucumber, anyone?)

On the subject of fridge design, I've always wondered why they are side loading rather than top loading. We know chest freezers are more efficient. Will I be able to buy a chest fridge in future?
Chest freezers are far better for storing hitchhikers and any other bodies you haven't got around to putting through he woodchipper.

https://en.m.wikipedia.org/wiki/Murder_of_Helle_Crafts
Title: Re: Home energy saving tips /ideas...
Post by: Flite on 17 February, 2023, 03:12:32 pm
Quote
refrigerated drawers
How would you stop the milk jug falling over?
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 17 February, 2023, 03:40:36 pm
Isn't "refrigerated drawers" a line from a BBC Radio comedy circa 1958?
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 17 February, 2023, 04:04:29 pm
On the subject of fridge design, I've always wondered why they are side loading rather than top loading. We know chest freezers are more efficient. Will I be able to buy a chest fridge in future?

Trade-off between efficiency and convenience.  Side loading makes it easier to get to stuff (which means you spend less time with the door open), and fridges can be opened tens of times a day (I'm actually shocked by how often, now I'm logging it), whereas a freezer (especially a secondary freezer, as chest freezers tend to be) might get opened somewhere between zero and two times a day.

I reckon the heat gain from changing the air (which has a relatively low specific heat capacity) is a secondary problem to introducing new moisture...
Title: Re: Home energy saving tips /ideas...
Post by: fruitcake on 17 February, 2023, 05:16:21 pm
Chest freezers are far better for storing hitchhikers and any other bodies you haven't got around to putting through he woodchipper.
https://en.m.wikipedia.org/wiki/Murder_of_Helle_Crafts (https://en.m.wikipedia.org/wiki/Murder_of_Helle_Crafts)
I made the mistake of reading that article, and I now want to unread it.
Title: Re: Home energy saving tips /ideas...
Post by: Lightning Phil on 17 February, 2023, 05:18:24 pm
We got a lot of unmetered electricity in a previous flat -- the very unsmart meter ticked round from time to time, but missed about 90% of our usage. Eventually they replaced the meter, of course, but there was no talk of our paying anything back.

Well that’s the interesting thing as without any numbers they are sticking fingers in the air.  The gas usage is also very weather temp dependant.  For instance today is warm enough that house has retained heat and heating hasn’t been on yet.
Title: Re: Home energy saving tips /ideas...
Post by: CrazyEnglishTriathlete on 17 February, 2023, 05:37:32 pm
Here’s a tip

1. Have your gas smart meter stop sending those 1/2 hour readings
2. Report this to energy company
3. Attempt to read meter by physically accessing meter and pressing menu buttons but it just says battery door open.  Fail to spot any battery door that could be open. Can’t get manual reading. Report to energy company with photos and video. They do nothing.
4. Energy company gets reading at end of month and claims nothing wrong with smart meter. Get told your IHD isn’t working when neither app or website show energy usage either
5, The next month energy company get monthly reading from gas smart meter and it’s exactly same as month ago. As in it’s claiming zero gas usage in winter..
6. For the umpteenth time you contact them but they say meter working.
7. New energy company (Octopus) take over
8. You contact them with a summary of events. They agree meter needs replacing but need to talk to manager.
9. They get back. As it’s not an Emergency (Gas still works) it’ll be 3-4 further weeks before they’ll be able to get any engineer out.

Now has the smart meter been recording anything at all, or has it essentially been unmetered gas?.   Find out 3 months after the whole saga started when they eventually come to replace meter. I shall be overlooking them doing it, to see if it has any reliable reading the engineer can drag out if it.

If it has been unmetered it’ll be an interesting discussion.

If you changed supplier, then should have a final bill with the old meter reading on it, so that should give you a confirmed price up to that point.  Not quite sure what happens after that.
Title: Re: Home energy saving tips /ideas...
Post by: Jurek on 17 February, 2023, 05:50:45 pm
Awesome proof of concept though, Kim, not least because it shows how poorly controlled fridges are currently. And so many of them don't stay at the 1 to 5 C range they're meant to, at least not at the top shelf _and_ the bottom shelf. (Frozen cucumber, anyone?)

On the subject of fridge design, I've always wondered why they are side loading rather than top loading. We know chest freezers are more efficient. Will I be able to buy a chest fridge in future?

Chest freezers are far better for storing hitchhikers and any other bodies you haven't got around to putting through he woodchipper.

https://en.m.wikipedia.org/wiki/Murder_of_Helle_Crafts
My bold
Banksy, (https://news.sky.com/story/members-of-the-public-have-taken-parts-of-banksys-new-artwork-in-margate-12812505) it would seem, has celebrated this very thing in Margate, a couple of days ago.

ETA - That Wikipedia link is proper macabre stuff.
Title: Re: Home energy saving tips /ideas...
Post by: Lightning Phil on 17 February, 2023, 05:59:19 pm
Here’s a tip

1. Have your gas smart meter stop sending those 1/2 hour readings
2. Report this to energy company
3. Attempt to read meter by physically accessing meter and pressing menu buttons but it just says battery door open.  Fail to spot any battery door that could be open. Can’t get manual reading. Report to energy company with photos and video. They do nothing.
4. Energy company gets reading at end of month and claims nothing wrong with smart meter. Get told your IHD isn’t working when neither app or website show energy usage either
5, The next month energy company get monthly reading from gas smart meter and it’s exactly same as month ago. As in it’s claiming zero gas usage in winter..
6. For the umpteenth time you contact them but they say meter working.
7. New energy company (Octopus) take over
8. You contact them with a summary of events. They agree meter needs replacing but need to talk to manager.
9. They get back. As it’s not an Emergency (Gas still works) it’ll be 3-4 further weeks before they’ll be able to get any engineer out.

Now has the smart meter been recording anything at all, or has it essentially been unmetered gas?.   Find out 3 months after the whole saga started when they eventually come to replace meter. I shall be overlooking them doing it, to see if it has any reliable reading the engineer can drag out if it.

If it has been unmetered it’ll be an interesting discussion.

If you changed supplier, then should have a final bill with the old meter reading on it, so that should give you a confirmed price up to that point.  Not quite sure what happens after that.

That’s not the problem. I think the gas smart meter has not been recording usage since pre Christmas.

There’s no confirmed bill because there is no confirmed usage recorded.  The meter apparently sent a reading beginning this month. Guess what, the reading was exactly the same as the reading sent beginning of January.  Unless the unit has somehow correctly stored usage (which I’m doubting) then there’s no way to determine it.

I’ve paid the daily standing charge for gas, but that’s it.  There is no usage element to the bills as it’s shown as zero.

If they can’t be bothered sending out an engineer to check, despite all I’ve told them in multiple ways, then …

Neither I, nor Bulb, nor Octopus know my gas usage since the meter did its thing.
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 17 February, 2023, 06:02:53 pm
Isn't "refrigerated drawers" a line from a BBC Radio comedy circa 1958?

IIRC it was a clumsy attempt to circumvent the ban on the phrase " winter drawers on" . Only got as far as a pilot episode.

(This statement may contain LIE or traces of LIE).

Title: Re: Home energy saving tips /ideas...
Post by: ian on 17 February, 2023, 08:44:02 pm
Awesome proof of concept though, Kim, not least because it shows how poorly controlled fridges are currently. And so many of them don't stay at the 1 to 5 C range they're meant to, at least not at the top shelf _and_ the bottom shelf. (Frozen cucumber, anyone?)

On the subject of fridge design, I've always wondered why they are side loading rather than top loading. We know chest freezers are more efficient. Will I be able to buy a chest fridge in future?
Chest freezers are far better for storing hitchhikers and any other bodies you haven't got around to putting through he woodchipper.

https://en.m.wikipedia.org/wiki/Murder_of_Helle_Crafts

Reminds me, I need a wood chipper, I have – erm – a lot of logs I need to get rid of.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 02 March, 2023, 01:36:59 pm
So, I see that Ripple Energy's 3rd project is going to be a solar farm. Given that approximate cost to invest in this (for us) would be just under £2500, and getting our own solar panels would probably be in the region of £7000, based on current consumption (i.e. if we didn't get a heat pump put in) would the Ripple investment make more sense, or am I missing something else here?
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 02 March, 2023, 01:44:37 pm
So, I see that Ripple Energy's 3rd project is going to be a solar farm. Given that approximate cost to invest in this (for us) would be just under £2500, and getting our own solar panels would probably be in the region of £7000, based on current consumption (i.e. if we didn't get a heat pump put in) would the Ripple investment make more sense, or am I missing something else here?

If the solar panels are on your roof, you don't have to pay distribution and transmission costs for the electricity, which makes the saving a lot more compelling.  OTOH, Ripple's solar farm is going to be somewhere a bit sunnier than your roof...

Of course, you can do both (though this seems more appealing from a diversity perspective when Ripple are offering a wind farm).  Ripple has the substantial advantage that you can invest what you can afford.  Given that installation costs dominate, putting an under-rated solar system on your roof is a serious false economy.

A sensible answer probably involves maths...
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 02 March, 2023, 05:54:14 pm
I did find a statement somewhere that suggested the Ripple way would pay up to 25% of your bill, which didn't seem like much.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 02 March, 2023, 05:55:44 pm
I did find a statement somewhere that suggested the Ripple way would pay up to 25% of your bill, which didn't seem like much.

Yup.  It's a decent return on investment, but it's not 'free' power.  It appeals to me on the basis of being a bit more tangible way to get off fossil fuels than 'green' tariffs, which always seem like a bit of a numbers exercise.
Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 02 March, 2023, 06:02:30 pm
I’m currently staying in a family run cyclists hotel in Spain.  It’s completely off grid.  There’s a load of ground mounted solar and a shed full of batteries which are in the middle of an upgrade.  They do also have a diesel fired generator which they try to minimise the use of.  The interesting problem in the Summer is that they have to find consumption when the PV is running full whack and the batteries are charged.
Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 02 March, 2023, 06:09:20 pm
Digging into the Ripple website you have to be an Octopus customer to benefit from the discount.  This leads me to assume that Ripple sell the generated energy to Octopus at the site and they then apply the discount to customers that are flagged as Ripple.  No chance of that going wrong, then…

They do say they are negotiating with other suppliers to offer something similar.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 02 March, 2023, 06:29:08 pm
Digging into the Ripple website you have to be an Octopus customer to benefit from the discount.  This leads me to assume that Ripple sell the generated energy to Octopus at the site and they then apply the discount to customers that are flagged as Ripple.  No chance of that going wrong, then…

Yes, that makes me nervous.  But I figure they have a strong incentive to sort it out if it does go wrong.  And I do sympathise with the whole "we don't want to be an investment vehicle" approach of trying to tie it to people's electricity consumption.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 02 March, 2023, 08:17:16 pm
I’m currently staying in a family run cyclists hotel in Spain.  It’s completely off grid.  There’s a load of ground mounted solar and a shed full of batteries which are in the middle of an upgrade.  They do also have a diesel fired generator which they try to minimise the use of.  The interesting problem in the Summer is that they have to find consumption when the PV is running full whack and the batteries are charged.
Hydrogen plant?
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 02 March, 2023, 08:43:54 pm
I’m currently staying in a family run cyclists hotel in Spain.  It’s completely off grid.  There’s a load of ground mounted solar and a shed full of batteries which are in the middle of an upgrade.  They do also have a diesel fired generator which they try to minimise the use of.  The interesting problem in the Summer is that they have to find consumption when the PV is running full whack and the batteries are charged.

I can relate, though much smaller scale. In the winter I have enough for basic needs (though the fridge goes off for Dec-Jan) then in the summer, having run the washing machine, hoover, charged everything, it's totally galling to see the solar controller just dumping all the power as heat.

A place I stayed in Portugal with a decent year-round solar setup used the excess to heat the swimming pool. At the other end of the spectrum, in Colombia (where they don't have the seasonal issue, just finance) it was normal for the power to go off at 4AM and come back on at 10. You had to remember there was only a single flush of the lavatory in the morning, and an early shower was out of the question.

On a general level, as we move to renewables, there may need to be a rethinking of how and when we use electricity to make the best use of it. We can't just expect someone to turn up the gas taps or chuck some more coal in a turbine to cope with any and all demand.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 02 March, 2023, 08:54:57 pm
I’m currently staying in a family run cyclists hotel in Spain.  It’s completely off grid.  There’s a load of ground mounted solar and a shed full of batteries which are in the middle of an upgrade.  They do also have a diesel fired generator which they try to minimise the use of.  The interesting problem in the Summer is that they have to find consumption when the PV is running full whack and the batteries are charged.
Pump for irrigated horticulture?
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 02 March, 2023, 08:55:48 pm
On a general level, as we move to renewables, there may need to be a rethinking of how and when we use electricity to make the best use of it. We can't just expect someone to turn up the gas taps or chuck some more coal in a turbine to cope with any and all demand.
Interesting point. Lots of unexpected changes around the corner.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 07 March, 2023, 05:10:43 pm
On a general level, as we move to renewables, there may need to be a rethinking of how and when we use electricity to make the best use of it. We can't just expect someone to turn up the gas taps or chuck some more coal in a turbine to cope with any and all demand.
Yes. Though a few kWh of battery in every home would help a lot from day to day. The problem is a fortnight of cold dull windless February when you rapidly exhaust domestic users' capacity to shift or reduce demand.

And of course automated demand shifting needs people to wire their home up to the Internet of Shit, as what no right-thinking individual would do.

Now, do any of you lot know of convincing guidance about how much PV is enough PV?
Title: Re: Home energy saving tips /ideas...
Post by: fd3 on 07 March, 2023, 06:07:49 pm
So, I see that Ripple Energy's 3rd project is going to be a solar farm. Given that approximate cost to invest in this (for us) would be just under £2500, and getting our own solar panels would probably be in the region of £7000, based on current consumption (i.e. if we didn't get a heat pump put in) would the Ripple investment make more sense, or am I missing something else here?
argh!  Yes, I have to look into that in my copious free time.
I figured I would bung them £X and see what happens and if it's good enough bung them £2X in the next round.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 07 March, 2023, 06:11:03 pm
So, I see that Ripple Energy's 3rd project is going to be a solar farm. Given that approximate cost to invest in this (for us) would be just under £2500, and getting our own solar panels would probably be in the region of £7000, based on current consumption (i.e. if we didn't get a heat pump put in) would the Ripple investment make more sense, or am I missing something else here?
argh!  Yes, I have to look into that in my copious free time.
I figured I would bung them £X and see what happens and if it's good enough bung them £2X in the next round.

I'm going to chuck some money at it, on the basis that diversification is good and we're unlikely to own a roof any time soon.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 07 March, 2023, 06:16:01 pm
And of course automated demand shifting needs people to wire their home up to the Internet of Shit, as what no right-thinking individual would do.

If this were the 1970s, we'd come up with a scheme whereby grid demand were broadcast using longwave radio.  A modern implementation might involve smart meters announcing the relevant data by Zigbee or powerline networking.

Alas, the closest we get is sensing frequency.  Which is probably a good idea (see above re my fridge turning off when the voltage drops out of spec) and doesn't add a lot to the component count, but if the demand is such that it's affecting frequency, then it's already a bit late.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 07 March, 2023, 06:51:58 pm
...well, quite. You want people to dump heat into their hot water tanks / building thermal mass / phase change heat batteries, not to mention get the laundry done, on the windy day before the weather changes.
Title: Re: Home energy saving tips /ideas...
Post by: fd3 on 07 March, 2023, 07:14:12 pm
Need to see actual details, but at current costs of >100 a month if 2.6k covers (making this up) half your bill you payback in 4 years and profit for 36.  So seems like a good investment (if I can find money) with a second investment linked to running a HP if that ever happens.
Title: Re: Home energy saving tips /ideas...
Post by: campagman on 07 March, 2023, 08:38:43 pm
Blog about Ripple. (https://diyinvestoruk.blogspot.com/2023/03/a-new-solar-offering-from-ripple-energy.html)
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 07 March, 2023, 10:57:10 pm
Was having a look at my window seals tonight and I suspect they could do with replacement, I've been staring blankly at pictures of them on various purveyors and not seeing anything that quite matches.

The fat end of the wedge is about 5mm and 8mm deep, the height about 10mm, flap is 10mm long and the gap is about 8mm


It seems to be made of foam with added emulsion.
This looks similar with one obvious difference
ExtrudaSeal F136 (White) Flipper Gasket Replacement Window Door Draught Excluder Seal - 2m https://amzn.eu/d/bEX8E1t

And I've lost the other one...

The other Optik is to accept that near 30 year old wooden windows are life expired and get modern upvc ones fitted but I'm skint enough as it is.



(https://uploads.tapatalk-cdn.com/20230307/a2925f60795b8f4c257f2c14ca064718.jpg)

Sent from my IV2201 using Tapatalk
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 08 March, 2023, 09:28:13 am
If they're double-glazed wooden windows, as from the 1990s they really should be, replacing them won't be cost-effective. Make sure you keep the woodwork in good nick. Good draughtproofing pays back in spades.
Title: Re: Home energy saving tips /ideas...
Post by: Tod28 on 08 March, 2023, 01:21:34 pm
The seal you have linked is for upvc. You need something like https://www.toolstation.com/stormguard-elite-11-joinery-seal/p39649 (https://www.toolstation.com/stormguard-elite-11-joinery-seal/p39649)
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 08 March, 2023, 08:30:45 pm
hm, finding the right sized bit for the rebate seems to be the biggest issue now
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 08 March, 2023, 10:18:14 pm
Having reassessed sizes with a set of calipers, it is that one linked to.
Title: Re: Home energy saving tips /ideas...
Post by: Tod28 on 09 March, 2023, 12:26:52 am
Ti's the one I use building external door frames.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 01 July, 2023, 06:03:13 pm
Interesting energy geekery. Anyone on the Octopus Agile tariff (which changes every day and is set the day before) tomorrow will get paid to use energy in the middle of the day, at the highest rate since the tariff began in 2019.
https://twitter.com/energystatsuk/status/1675159102165508098?t=5aRyrVcZcQ9YbPcgO3tjIg&s=19
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 23 October, 2023, 12:17:49 pm
I've 3 blown double glazed units at home which I have measured to get replacements made.  While I was at it I went somewhat down the rabbit hole of different materials, construction & fill gas and found there's a pretty vast difference in performance between what I have fitted & modern units but diminishing returns are quickly hit.

U values vary by who is claiming them but this seems reasonable:

3.3 - old blown unit with air fill
2.7 - old unit with aluminium spacers retaining Argon fill
2.6 - new unit with plain glass and warm edge spacers
This is where it gets interesting...
1.0 - new unit with low emissivity coating
0.9 - new triple glazed with two sheets of low emissivity glass1
0.5 - new triple glazed unit in new frames.
0.4 - vacuum unit in existing frames2

So I measured all my units and calculated that to maintain inside at 10 degrees above outside requires over 5kWh (:o) per day more than if I replaced the lot with new units at U=1.0.  Cost of a plain unit is pretty reasonable, the low emissivity coating which makes such a performance difference is surprisingly little, no brainer little.  Unfortunately all of mine have Geogean bars, some need obscured glass, some must be toughened and a few need all 3 options each of which is more expensive than the coating.

Total cost to do the lot is £3.2k with a payback time of about 5.5 winters3 at my electricity cost rate.  I heat with oil which will be less but I'm using voles here as the long term goal is to get my house sufficiently insulated a heat pump becomes viable.

1Argon fill which is not the ideal gas to use for the narrow spaces you get putting triple in a frame designed for double.  The correct gas for 8mm gaps is Xenon which is available but falls into 'if you need to ask...' territory.
2My frames are not the correct thickness for this option and the company has not responded to my enquiries.
33 months per year at 9C or less, internal target temp = 19.

Most useful references:
Double glazed units (https://www.sealedunitsonline.co.uk/)
Triple glazed units (https://tripleglazedunits.co.uk/)
Vacuum glass (https://vacuumglazing.co.uk/landvac-optimum-vacuum-glazing/)
Calculations, fill gasses, gap widths & Planitherm low emissivity coating. (https://techhub.uk.saint-gobain-building-glass.com/sites/default/files/document-files/Solar%20%26%20Thermal%201E%20-%20Thermal%20Insulation%20-%2019-09-2018.pdf)
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 24 October, 2023, 03:27:06 pm
Millions of smart meters will brick it when 2G and 3G turns off • The Register (https://www.theregister.com/2023/10/23/millions_of_smart_meters_will/)

Quote
Public Accounts Committee demands timetable for replacements, because things have run so smoothly so far...
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 24 October, 2023, 03:56:22 pm
How many people actually use less energy because of a smart meter?  It usually goes:

1. Ooh, shiny energy monitor!
2. Oh, it won't show my actual tariff.
3. It takes up a plug socket in the kitchen.
4. It looks a bit shit.
5. Better unplug it and put it in the back of a cupboard.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 24 October, 2023, 03:59:46 pm
The minority who get to:

2b.  I wonder what's drawing that ~100W?

And do a bit of selective switching-off and/or investing in a plug-in power meter to track down the issue before proceeding to step 3, I reckon.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 24 October, 2023, 08:32:35 pm
How many people actually use less energy because of a smart meter?  It usually goes:

1. Ooh, shiny energy monitor!
2. Oh, it won't show my actual tariff.
3. It takes up a plug socket in the kitchen.
4. It looks a bit shit.
5. Better unplug it and put it in the back of a cupboard.

Goes to check. Yes, it's still in the cupboard under the stairs. It is plugged in though, but only because there's an entire bank of eight sockets in there and I don't have that much IT shame (modem/router, NAS, Hive, probably something I forgot, the LED sensor lights on the wall outside).

My mother keeps her on prominent display in the kitchen for some reason.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 24 October, 2023, 10:12:38 pm
My Octopus Home Mini has received the same treatment, as it turns out that monitoring your energy consumption via a phone app is about as useful.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 27 October, 2023, 04:45:19 pm
We are on a BG fixed tariff (lower than the cap rate) for gas and electric - we're also signed up for "PeakSave Sundays" where electricity is half-price between 1100-1600 - savings so far total about a fiver . .  but every little helps.

Just had an email with the text below - unless I'm missing something I can't see what the actual saving (or rate) is/might be - or how they measure the "saving" which seems to be based on "normal consumption".   The Smart meter will apparently tell them the saving??


=
We hope you’re enjoying your half-price electricity with PeakSave Sundays.

We're thrilled to share exciting news with our PeakSavers. Thanks to the great success and positive feedback from last year, we're getting ready to launch another season of PeakSave Winter events.

Our PeakSave Winter events help to ease the strain on the UK’s energy grid at peak times. They work differently from PeakSave Sundays:
 
With PeakSave Sundays you move your electricity use into off-peak times to take advantage of cheaper prices.
 
And with PeakSave Winter, we invite you to join events to use less electricity, by moving your usage out of peak times when the grid’s working overtime.
 
You earn money off your bills for any electricity you save. And by helping to reduce demand at peak times, you’re supporting a greener grid and making sure everyone gets the energy they need.
 
How does PeakSave Winter work?

Taking part is easy – just try to use less electricity than you normally would during the events. The goal is to use 30% less, but you’ll earn money however much you save.
 
•National Grid decides when events will happen and they last between 30 minutes and 4 hours

•We’ll invite you to opt into taking part by email, either on the day or the day before. So, it’s important we have the right contact details for you. Check these online now

•During the events, try to use less electricity than you normally would. It’s as simple as waiting a while to put the washing on. Or doing the dishes a little earlier

•We’ll work out how much electricity you saved through your smart meter. And even if you only save a little, we’ll round it up to a £1 for taking part^

•At the end of each month, we’ll send you a summary of how much you saved.

How do I take part in PeakSave Winter?
 
There’s nothing you need to do right now. You’re already a PeakSaver, so you’ll automatically be invited to take part in the events.

You’ll have to opt into every PeakSave Winter event. That way, we know to compare how much electricity you use with what you normally would at that time.

Opting in is easy. Before the event, we’ll send you an email and SMS, and you click a link to join. So just double-check we have the right number for you, then keep an eye out for your invitations to the events.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 27 October, 2023, 06:44:51 pm
How many people actually use less energy because of a smart meter?  It usually goes:

1. Ooh, shiny energy monitor!
2. Oh, it won't show my actual tariff.
3. It takes up a plug socket in the kitchen.
4. It looks a bit shit.
5. Better unplug it and put it in the back of a cupboard.
:thumbsup:
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 27 October, 2023, 08:35:14 pm
Solar power predicted to be cheapest energy source in almost entire world by 2030:

(https://images.theconversation.com/files/556067/original/file-20231026-27-4ztmyh.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=342&fit=crop&dpr=1)
https://theconversation.com/solar-power-expected-to-dominate-electricity-generation-by-2050-even-without-more-ambitious-climate-policies-215367

A couple of interesting points about siting in the comments – eg over irrigation canals, reducing evaporation.
Title: Re: Home energy saving tips /ideas...
Post by: Jasmine on 27 October, 2023, 08:37:37 pm
We are on a BG fixed tariff (lower than the cap rate) for gas and electric - we're also signed up for "PeakSave Sundays" where electricity is half-price between 1100-1600 - savings so far total about a fiver . .  but every little helps.

Just had an email with the text below - unless I'm missing something I can't see what the actual saving (or rate) is/might be - or how they measure the "saving" which seems to be based on "normal consumption".   The Smart meter will apparently tell them the saving??


=
snipped details

It's a bonus scheme. Several other energy companies trialled it last year. If you hit the target reduction you get paid a bonus. The bigger percentage drop you have, the more bonus you get paid. It's based on *your* normal consumption for that time period. That bit of it annoyed me - I've got low energy usage generally, including at the peak times; the point of the scheme isn't to get you to use less energy overall, it's to get you to use the same amount but off peak.
Title: Re: Home energy saving tips /ideas...
Post by: Pickled Onion on 27 October, 2023, 09:04:37 pm
Solar power predicted to be cheapest energy source in almost entire world by 2030:

(https://images.theconversation.com/files/556067/original/file-20231026-27-4ztmyh.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=342&fit=crop&dpr=1)
https://theconversation.com/solar-power-expected-to-dominate-electricity-generation-by-2050-even-without-more-ambitious-climate-policies-215367

A couple of interesting points about siting in the comments – eg over irrigation canals, reducing evaporation.

Those three blue dots for onshore wind power near the top of the graphic: can someone tell the Conservative Party that most people on these dots would rather have cheaper electricity bills and the neanderthal nimbies who don't will be dead soon so fuckem.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 28 October, 2023, 12:06:19 pm
Having bored this thread extensively with my Opinions on domestic decarbonisation, from the point of view of an analytical drudge (third class) for the government, I am delighted to share that I've moved on to electricity systems modelling and am rapidly developing Opinions about charts like the above. Largely because the cost of one technology depends so heavily on the others available: obviously solar becomes much more valuable if there is long-term storage available (Greenland!). And because the cost to consumers doesn't depend on the cheapest source, but on the most expensive one you can't avoid paying for.
Title: Re: Home energy saving tips /ideas...
Post by: tom_e on 30 October, 2023, 11:02:48 am
We are on a BG fixed tariff (lower than the cap rate) for gas and electric - we're also signed up for "PeakSave Sundays" where electricity is half-price between 1100-1600 - savings so far total about a fiver . .  but every little helps.

Just had an email with the text below - unless I'm missing something I can't see what the actual saving (or rate) is/might be - or how they measure the "saving" which seems to be based on "normal consumption".   The Smart meter will apparently tell them the saving??


=
snipped details

It's a bonus scheme. Several other energy companies trialled it last year. If you hit the target reduction you get paid a bonus. The bigger percentage drop you have, the more bonus you get paid. It's based on *your* normal consumption for that time period. That bit of it annoyed me - I've got low energy usage generally, including at the peak times; the point of the scheme isn't to get you to use less energy overall, it's to get you to use the same amount but off peak.

I've avoided participating in this scheme with Octopus for this reason.  I'm in on the power-ups, where you get any electricity for free at peak solar / wind hours.  But the saving sessions seem to rely on a comparison to normal use.  Since I try to avoid "extras" running during peak hours already, the only way I can win from these will be to start running stuff during peak hours normally and then stop it during saving sessions.  I don't really want to play that game.

Seems like a very poorly thought through idea, to give bonuses based on comparison to "normal" use.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 30 October, 2023, 11:13:00 am
Having bored this thread extensively with my Opinions on domestic decarbonisation, from the point of view of an analytical drudge (third class) for the government, I am delighted to share that I've moved on to electricity systems modelling and am rapidly developing Opinions about charts like the above. Largely because the cost of one technology depends so heavily on the others available: obviously solar becomes much more valuable if there is long-term storage available (Greenland!). And because the cost to consumers doesn't depend on the cheapest source, but on the most expensive one you can't avoid paying for.

Greenland and Finland are interesting ones in that map. Given they are dark for several months of the year.

I'd like to know how that would work out. Likewise Scotland...

J
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 30 October, 2023, 11:26:34 am
We are on a BG fixed tariff (lower than the cap rate) for gas and electric - we're also signed up for "PeakSave Sundays" where electricity is half-price between 1100-1600 - savings so far total about a fiver . .  but every little helps.

Just had an email with the text below - unless I'm missing something I can't see what the actual saving (or rate) is/might be - or how they measure the "saving" which seems to be based on "normal consumption".   The Smart meter will apparently tell them the saving??


=
snipped details

It's a bonus scheme. Several other energy companies trialled it last year. If you hit the target reduction you get paid a bonus. The bigger percentage drop you have, the more bonus you get paid. It's based on *your* normal consumption for that time period. That bit of it annoyed me - I've got low energy usage generally, including at the peak times; the point of the scheme isn't to get you to use less energy overall, it's to get you to use the same amount but off peak.

I've avoided participating in this scheme with Octopus for this reason.  I'm in on the power-ups, where you get any electricity for free at peak solar / wind hours.  But the saving sessions seem to rely on a comparison to normal use.  Since I try to avoid "extras" running during peak hours already, the only way I can win from these will be to start running stuff during peak hours normally and then stop it during saving sessions.  I don't really want to play that game.

Seems like a very poorly thought through idea, to give bonuses based on comparison to "normal" use.

It does seem like a "snake oil" deal - as we have nothing to lose I've ticked the box and will be interested to what we get in terms of any bonus . . .  what we have done is made a conscious effort to use any high-usage electrical applicances between 1100-1600 on Sundays when the juice is half-price (yesterday our washing machine, tumble drier and oven (batch baking) begged for mercy at about 1555  ;D)   

Again, interesting to see what we get back off the bill when the scheme finishes at the end of the year
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 30 October, 2023, 11:28:40 am

Yesterday wind provided 70% of power to the Dutch grid, and for 12 consecutive hours, prices went negative.

J
Title: Re: Home energy saving tips /ideas...
Post by: lissotriton on 30 October, 2023, 01:26:28 pm
Having bored this thread extensively with my Opinions on domestic decarbonisation, from the point of view of an analytical drudge (third class) for the government, I am delighted to share that I've moved on to electricity systems modelling and am rapidly developing Opinions about charts like the above. Largely because the cost of one technology depends so heavily on the others available: obviously solar becomes much more valuable if there is long-term storage available (Greenland!). And because the cost to consumers doesn't depend on the cheapest source, but on the most expensive one you can't avoid paying for.

Greenland and Finland are interesting ones in that map. Given they are dark for several months of the year.

I'd like to know how that would work out. Likewise Scotland...
Probably by country, so Greenland is probably included as part of Denmark. I doubt they have any separate data. Does Greenland have any sort of interconnectors to other power grids?
I presume that map includes solar imported from elsewhere.
Title: Re: Home energy saving tips /ideas...
Post by: grams on 30 October, 2023, 02:41:01 pm
Greenland and Finland are interesting ones in that map. Given they are dark for several months of the year.

Southern Finland does ok on this map, about the same as southern England and better than Ireland.
https://globalsolaratlas.info/map

Less cloudy if I'm understanding the cryptic numbers below correctly.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 30 October, 2023, 03:46:06 pm
Greenland and Finland are interesting ones in that map. Given they are dark for several months of the year.

Southern Finland does ok on this map, about the same as southern England and better than Ireland.
https://globalsolaratlas.info/map

Less cloudy if I'm understanding the cryptic numbers below correctly.

Given that Greenland has a population of less than 60k people, and ⅓rd of those live in one city. Not really worth the cost of an interconnection.

For a few months if the year you can probably get pretty good yield from some solar. But you're gonna need something else for when it's really dark. Not all of the country is in the Arctic circle, the top is about inline with southern Finland. But you'd need a sizable array to get enough power for the rest of the day in the short day like hours of winter.

J
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 30 October, 2023, 04:20:22 pm
Having bored this thread extensively with my Opinions on domestic decarbonisation, from the point of view of an analytical drudge (third class) for the government, I am delighted to share that I've moved on to electricity systems modelling and am rapidly developing Opinions about charts like the above. Largely because the cost of one technology depends so heavily on the others available: obviously solar becomes much more valuable if there is long-term storage available (Greenland!). And because the cost to consumers doesn't depend on the cheapest source, but on the most expensive one you can't avoid paying for.

Greenland and Finland are interesting ones in that map. Given they are dark for several months of the year.

I'd like to know how that would work out. Likewise Scotland...

J

Cruachan
Glen Doe
Other projects in the pipeline, including Cruachan Mk2

Hunterston B is decommissioning and Torness has 5 years left so their original source of power is going.

Edit: Added quote i missed
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 30 October, 2023, 04:23:27 pm
Cruachan
Glen Doe
Other projects in the pipleline, including Cruachan Mk2

Hunterston B is decommissioning and Torness has 5 years left so their original source of power is going.

I think I've missed something here. Can you provide some context please?

J
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 30 October, 2023, 04:46:42 pm
Cruachan
Glen Doe
Other projects in the pipleline, including Cruachan Mk2

Hunterston B is decommissioning and Torness has 5 years left so their original source of power is going.

I think I've missed something here. Can you provide some context please?

J
Top 3 are hydro dams.
Bottom two are nuclear.

I think he's saying that the hydro storage are losing their input sources, but not sure that will matter since Scotland quite frequently has a surplus of windpower.

The turbines near me are often de-powered.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 30 October, 2023, 04:48:17 pm
I missed the quote that gives the context

It was the solar and Scotland one.

The wind farms and solar farms will make significant use of the existing pumped storage

Sent from my IV2201 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 30 October, 2023, 04:53:40 pm


That makes more sense.

J
Title: Re: Home energy saving tips /ideas...
Post by: felstedrider on 30 October, 2023, 06:03:24 pm
Fun fact.  Chruachan is owned and operated by Drax.  Playing system constraints is one of their things.

This may all change if the regulator gets its way and introduces locational pricing.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 30 October, 2023, 06:52:50 pm
Having bored this thread extensively with my Opinions on domestic decarbonisation, from the point of view of an analytical drudge (third class) for the government, I am delighted to share that I've moved on to electricity systems modelling and am rapidly developing Opinions about charts like the above. Largely because the cost of one technology depends so heavily on the others available: obviously solar becomes much more valuable if there is long-term storage available (Greenland!). And because the cost to consumers doesn't depend on the cheapest source, but on the most expensive one you can't avoid paying for.

Greenland and Finland are interesting ones in that map. Given they are dark for several months of the year.

I'd like to know how that would work out. Likewise Scotland...
Probably by country, so Greenland is probably included as part of Denmark. I doubt they have any separate data. Does Greenland have any sort of interconnectors to other power grids?
I presume that map includes solar imported from elsewhere.
On map c, it looks like Greenland is dark blue (offshore wind) and Denmark is light blue (onshore). Though it's hard to tell cos Denmark's small.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 05 December, 2023, 09:02:08 pm
My work is nothing whatsoever to do with plumbing but sometimes throws up random things, like electrically heated hot water taps. The firm concerned (not one of those listed here: https://www.plumbnation.co.uk/instant-hot-water-taps-5-0000 )* was making a big point of how this was helping people save energy and made them part of the "energy transition" away from gas etc. Presumably they justify this on the grounds that it's not burning fossil fuels indoors, and that it heats only the amount of water actually used, directly at the point and time of use. But what do people reckon? Is there any truth in that? Thinking of energy not money, and no, I'm not thinking of installing one.

*Note the Tobago in the last sentence, which is still true!
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 05 December, 2023, 09:29:27 pm
It's one of those 'it depends' things, isn't it? There are efficiency savings to be made from on-demand water hearing (ToBAGO) where you can't reliably plan the hot water consumption in advance.  There's also a lot to be said for eliminating a long run of pipework between the source of hot water and the tap.  And you can have potable hot water (sometimes hot enough to make tea) and avoid breeding legionella without worrying about minimum temperatures.

On the other hand, it doesn't let you store cheap/clean energy the way a big tank of hot water does.

Like the Pissy Landlord Electric Shower™ I'd say their main advantage was low up-front cost and simple installation - which makes them an easy retrofit and a useful backup against failure of a gas boiler or whatever.  My enthusiasm for the things is quite high since one appeared at the sink in the old-school toilet block at Darley Moor back in 2020, greatly improving the hand-washing experience.
Title: Re: Home energy saving tips /ideas...
Post by: grams on 05 December, 2023, 09:34:36 pm
Firing up a combi boiler and waiting a short eternity for hot water to come through is effing ridiculous if you're just looking to wash your hands or rinse a mug or whatever, from both a wasted energy and a convenience POV.

It will not make one bit of difference towards saving the planet.

Quote
not burning fossil fuels indoors

the combustion chamber in a gas boiler is topologically outdoors unless something is very wrong
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 05 December, 2023, 09:37:15 pm
Those instant hot water taps are brilliant, no waiting for kettle or urn to hear up what is almost certainly too much water, whether they're more efficient or not I have no idea.
The one at work seems to be permanently broken though and so is the chilled water side.


Those wall mounted mildly warm water things are the work of the devil, particularly since all the sinks have hot water taps and piping but seemingly someone disconnected some of them in the building,l at some point, the touch free ones broke in weeks, the ones with handles... Well I just end up with a cold hand wash in the bigs that have them

Sent from my IV2201 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: Kim on 05 December, 2023, 09:37:31 pm
Firing up a combi boiler and waiting a short eternity for hot water to come through is effing ridiculous if you're just looking to wash your hands or rinse a mug or whatever, from both a wasted energy and a convenience POV.

And the standard work-around seems to be for the boiler to fire up every whenever to maintain the temperature in the heat exchanger.  I quickly turned this off on our new boiler (Worcester Greenstar something or other) because the vastly increased electricity consumption (it seemed to be overruning the pump every time it fired) was completely disproportionate to the water not being quite as cold when you first run the tap.  I assume they don't count the electrons when evaluating the efficiency of gas boilers.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 05 December, 2023, 09:39:02 pm
I'm not sure I'd agree on the low up-front cost. Sure it's a lot cheaper than a boiler, either gas or electric, but it doesn't replace one, since it's only one tap; even if you use them for every tap, you still need some form of room heating. And it's a very expensive tap.

But back to energy. Part of "it depends" must be the climate and use pattern. If you don't need room heating (because you're in the tropics or maybe a holiday home that you only visit in August... ) then it would presumably be more efficient. If you're in Siberia, probably not.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 05 December, 2023, 09:41:20 pm
I'm not sure I'd agree on the low up-front cost. Sure it's a lot cheaper than a boiler, either gas or electric, but it doesn't replace one, since it's only one tap; even if you use them for every tap, you still need some form of room heating. And it's a very expensive tap.

Not all taps are in homes, or even heated buildings, thobut.  And if the room heating's electric (storage heaters, heat pump, whatever), a couple of expensive taps might be a reasonable alternative to an electrically heated hot water tank, if only on space grounds.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 05 December, 2023, 09:41:46 pm
Quote
not burning fossil fuels indoors

the combustion chamber in a gas boiler is topologically outdoors unless something is very wrong
Yes, I suppose it is. (So why are we told to put a CO monitor next to it? Presumably just in case of something going very wrong?)
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 05 December, 2023, 09:42:26 pm
I'm not sure I'd agree on the low up-front cost. Sure it's a lot cheaper than a boiler, either gas or electric, but it doesn't replace one, since it's only one tap; even if you use them for every tap, you still need some form of room heating. And it's a very expensive tap.

Not all taps are in homes, or even heated buildings, thobut.
See my second paragraph!
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 05 December, 2023, 09:44:58 pm
Quote
not burning fossil fuels indoors

the combustion chamber in a gas boiler is topologically outdoors unless something is very wrong
Yes, I suppose it is. (So why are we told to put a CO monitor next to it? Presumably just in case of something going very wrong?)

Because the First Law Of Engineering[1] applies, and because historical designs weren't topologically outdoors, and this sort of safety advice usually lacks subtlety.


[1] Everything leaks.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 05 December, 2023, 09:46:40 pm
Those instant hot water taps are brilliant, no waiting for kettle or urn to hear up what is almost certainly too much water, whether they're more efficient or not I have no idea.
The one at work seems to be permanently broken though and so is the chilled water side.


Those wall mounted mildly warm water things are the work of the devil, particularly since all the sinks have hot water taps and piping but seemingly someone disconnected some of them in the building,l at some point, the touch free ones broke in weeks, the ones with handles... Well I just end up with a cold hand wash in the bigs that have them

Sent from my IV2201 using Tapatalk
There seem to be two different things. The electrically heated taps, as in my link, which I don't think I've ever encountered in the metal. And the things like plumbed-in tea urns, often encountered in eg village halls, which do indeed often dispense water that's not quite hot enough for the intended purpose. I presume, from the gurgling they make, this sort actually heat up a tank-let full of water all the time, which they dispense as required; so more like a standard boiler.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 05 December, 2023, 09:55:59 pm
And the things like plumbed-in tea urns, often encountered in eg village halls, which do indeed often dispense water that's not quite hot enough for the intended purpose. I presume, from the gurgling they make, this sort actually heat up a tank-let full of water all the time, which they dispense as required; so more like a standard boiler.

That's the ones.  Traditionally kept switched off when the hall is not in use, which means that they dispense too-cold water for the first half of the hire period, and then scalding hot, until about halfway through the washing-up, where it runs lukewarm due to inadequate heating capacity.

I think they're just an unpressurised tank of water that overflows into the outlet when fed with fresh water by the tap.  Simple and relatively unlikely to result in a steam explosion should the thermostat get stuck.
Title: Re: Home energy saving tips /ideas...
Post by: ian on 05 December, 2023, 09:57:48 pm
We have a lovely tank of hot water to serve the Asbestos Palace. Alas, because the pipework is routed via Outer Mongolia, the time for it to reach the taps is fairly annoying. I don't really know why, the bathroom sink is literally in the next room to the tank. I presume some weird microbore piping or somesuch. Or I'm right about the Outer Mongolia routing.


I can't do combo, I have PTSD from my childhood, someone downstairs merely looking at the tap sent the shower into frigid mode.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 05 December, 2023, 09:58:29 pm
Maybe they cheaped out on the asbestos?
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 05 December, 2023, 10:29:00 pm
Those instant hot water taps are brilliant, no waiting for kettle or urn to hear up what is almost certainly too much water, whether they're more efficient or not I have no idea.
The one at work seems to be permanently broken though and so is the chilled water side.


Those wall mounted mildly warm water things are the work of the devil, particularly since all the sinks have hot water taps and piping but seemingly someone disconnected some of them in the building,l at some point, the touch free ones broke in weeks, the ones with handles... Well I just end up with a cold hand wash in the bigs that have them

Sent from my IV2201 using Tapatalk
There seem to be two different things. The electrically heated taps, as in my link, which I don't think I've ever encountered in the metal. And the things like plumbed-in tea urns, often encountered in eg village halls, which do indeed often dispense water that's not quite hot enough for the intended purpose. I presume, from the gurgling they make, this sort actually heat up a tank-let full of water all the time, which they dispense as required; so more like a standard boiler.
Your link showed me taps that dispense water at 98c hence thinking you meant them, which may have been a result of my low sampling rate (2 click through)

Sent from my IV2201 using Tapatalk
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 05 December, 2023, 10:39:26 pm
Those instant hot water taps are brilliant, no waiting for kettle or urn to hear up what is almost certainly too much water, whether they're more efficient or not I have no idea.
The one at work seems to be permanently broken though and so is the chilled water side.


Those wall mounted mildly warm water things are the work of the devil, particularly since all the sinks have hot water taps and piping but seemingly someone disconnected some of them in the building,l at some point, the touch free ones broke in weeks, the ones with handles... Well I just end up with a cold hand wash in the bigs that have them

Sent from my IV2201 using Tapatalk
There seem to be two different things. The electrically heated taps, as in my link, which I don't think I've ever encountered in the metal. And the things like plumbed-in tea urns, often encountered in eg village halls, which do indeed often dispense water that's not quite hot enough for the intended purpose. I presume, from the gurgling they make, this sort actually heat up a tank-let full of water all the time, which they dispense as required; so more like a standard boiler.
Your link showed me taps that dispense water at 98c hence thinking you meant them, which may have been a result of my low sampling rate (2 click through)

Sent from my IV2201 using Tapatalk
It was the taps. TBH I didn't realize till looking them up that they delivered boiling water; the way they described it was just hot water. But I've found the very same model and it's boiling, or nearly boiling, water, from a tap, heated at the tap.
Title: Re: Home energy saving tips /ideas...
Post by: grams on 05 December, 2023, 10:55:47 pm
The taps in the link are boiling and/or chilled and/or sparkling (!) water dispensers that would be fitted in addition to a normal tap. A few of them are in mixer tap format for warm water.

More boring instant water heaters are a thing, although prices vary from cheap-and-crap to astonishingly expensive, for what is a heating element in a box:
https://www.plumbnation.co.uk/instantaneous-water-heaters-129-0000
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 06 December, 2023, 07:57:38 am
I'm not sure I'd agree on the low up-front cost. Sure it's a lot cheaper than a boiler, either gas or electric, but it doesn't replace one, since it's only one tap; even if you use them for every tap, you still need some form of room heating. And it's a very expensive tap.

Not all taps are in homes, or even heated buildings, thobut.  And if the room heating's electric (storage heaters, heat pump, whatever), a couple of expensive taps might be a reasonable alternative to an electrically heated hot water tank, if only on space grounds.

Sort of related . .  my daughter's studio flat (2017 purchase, approx 1990 build) had E7 storage heaters and two immersion heaters (E7 and boost) and an electric shower - obviously a bit pricey to run with the lack of fine control given her variable working hours.   After a bit of research and some advice from my electrician nephew we:

- ripped out the storage heaters and replaced them with a couple of convector panel heaters that can be controlled remotely
- replaced the HW cylinder which had seen better days with one with 2 immersions but on the ordinary electricity and with a smart switch
- fitted an Ariston under-sink water heater in the kitchen area
- replaced the past its best electric shower with a new more efficient model

The flat has new double glazing and the benefit of other properties above and on two sides of the footprint so insulation is pretty good.

The set up gives control and has reduced her electricity consumption considerably - she can switch the panel heater(s) on when on the way home, she normally just showers but fires up the immersion if she wants a bath (usually after she's been rowing on the Thames at 0500 . .  don't ask!) - and the sink HW works fine for washing up/washing hands etc.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 06 December, 2023, 08:59:35 am
The taps in the link are boiling and/or chilled and/or sparkling (!) water dispensers
Sparkling water? Pah! I want a tap for champagne!
Title: Re: Home energy saving tips /ideas...
Post by: MikeFromLFE on 07 December, 2023, 08:53:31 am


The taps in the link are boiling and/or chilled and/or sparkling (!) water dispensers that would be fitted in addition to a normal tap. A few of them are in mixer tap format for warm water.
We stayed in a B&B in Belgium earlier this year which had such a device in the communal kitchen - I was tempted to rush home and refit the entire kitchen around such an installation. Magic!
Title: Re: Home energy saving tips /ideas...
Post by: TimC on 07 December, 2023, 11:25:52 am
Amazon have a huge range of water heating taps, from those that'll heat a dribble to a few degrees above ambient to those that'll boil the North Sea in 5 seconds: clicky (https://www.amazon.co.uk/s?k=water+heating+tap&crid=2ZJJVCCV4PJV6&sprefix=water+heating+tap%2Caps%2C81&ref=nb_sb_noss_1)
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 07 December, 2023, 03:23:09 pm
There are a couple at work and they break down with depressing frequency.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 15 December, 2023, 01:49:01 pm
Finally bitten the wossname and ordered a new wireless thermostat & receiver gadget so as to replace the ancient, paint-sodden and stupidly-placed one.  Expect pleas of the “HELP! Which wire connects to what terminal?” variety in due course.
Title: Re: Home energy saving tips /ideas...
Post by: rafletcher on 15 December, 2023, 03:47:10 pm
Finally bitten the wossname and ordered a new wireless thermostat & receiver gadget so as to replace the ancient, paint-sodden and stupidly-placed one.  Expect pleas of the “HELP! Which wire connects to what terminal?” variety in due course.
.

Thats what’s put me off.  If I could put the receiver on the wall in place of the (2 wire) thermostat and have a wandering head unit, all good. Having to wire the receiver into the boiler less so. Plus they all seem to need the internet, and I’ve no interest in remotely accessing the heating. It can wait until the next boiler replacement, and I’ll make do with a more flexibly programmable one on the wall - after all we only have a room and kitchen downstairs!
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 15 December, 2023, 05:11:11 pm
Finally bitten the wossname and ordered a new wireless thermostat & receiver gadget so as to replace the ancient, paint-sodden and stupidly-placed one.  Expect pleas of the “HELP! Which wire connects to what terminal?” variety in due course.
.

Thats what’s put me off.  If I could put the receiver on the wall in place of the (2 wire) thermostat and have a wandering head unit, all good. Having to wire the receiver into the boiler less so. Plus they all seem to need the internet, and I’ve no interest in remotely accessing the heating. It can wait until the next boiler replacement, and I’ll make do with a more flexibly programmable one on the wall - after all we only have a room and kitchen downstairs!

They really don't, most of these Honeywell ones just work by RF between the stat and the receiver. https://www.screwfix.com/c/heating-plumbing/wireless-thermostats/cat4600004?brand=honeywell_home
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 15 December, 2023, 07:05:34 pm
The receiver will still need a mains supply, thobut.  So if you've only got two wires to the existing thermostat, you'll probably have to situate it at the other end of them (presumably terminals on the boiler, or some wired-by-plumbers junction box from hell).
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 15 December, 2023, 07:10:37 pm
The honeywell t6 does work without internet though easier to set up schedule on app than on the unit, can't remember how many wires go into the boiler but it's standard Controller wires the only question was on/off or the "smart" protocol I've forgotten the name of which let's it say to the boiler how hot to get.

The simpler ones will probably be much the same?

Then the head unit uses RF in house to sak to the box at the boiler, I move mine between north and south rooms depending on the sun, wind, snow etc.

Sent from my IV2201 using Tapatalk
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 15 December, 2023, 07:18:30 pm
Communication with the boiler to set flow temperature (and whatever) seems to be one of those the-great-thing-about-standards situations, with OpenTherm becoming the standard and Worcester Bosch being the Microsoft of the boiler world with their own EMS thing.  I don't think the wiring requirements for either are particularly onerous, but it's still going to need power to the receiver and at least one for comms.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 15 December, 2023, 07:43:31 pm
Power on mine comes from the boiler connecting block and it's got to be around there anyway

(https://uploads.tapatalk-cdn.com/20231215/a2af9449211c942cf471b6cb6c49bead.jpg)

Sent from my IV2201 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 15 December, 2023, 07:45:04 pm
This is powered by a transformer, bit annoying that I have at6r as would rsther it was in the hallway

(https://uploads.tapatalk-cdn.com/20231215/7a48ca925d51cfc4ec3cdc5d6f6a7b12.jpg)

Sent from my IV2201 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 15 December, 2023, 08:04:53 pm
I never denied power was needed, but the comment I was refuting was that internet was required. Our ancient boiler at the previous Igloo worked quite well with a receiver retrofitted next to the boiler talking to a stat powered by AA or AAA batteries, which got moved around depending on whether it was stove season or not.
I don't remember the receiver needing it's own power supply, I think it was powered from the boiler.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 15 December, 2023, 08:09:34 pm
IoS is with this set up as you say optional, thankfully given its only time before a bus goes through the cabinet's latest incarnation.

Sent from my IV2201 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 16 December, 2023, 08:59:56 am
I'm fairly sure the Hive thermostat doesn't use the internet to do its day-to-day thing of keeping a steady temperature.  It has its own wireless protocol.  Obviously it needs the internet for overriding the programme when you're not physically there, pressing the buttons on it.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 16 December, 2023, 01:13:25 pm
I'm fairly sure the Hive thermostat doesn't use the internet to do its day-to-day thing of keeping a steady temperature.  It has its own wireless protocol.  Obviously it needs the internet for overriding the programme when you're not physically there, pressing the buttons on it.

Yep - that's what the man that installed our Hive controls said.
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 16 December, 2023, 01:18:53 pm
Any smart thermostat that doesn't fall back to being a dumb thermostat in the event of network problems belongs in the e-waste bin next to the Realtek 8139s.  Unless you really like burst pipes.

(I'd go further and suggest that any wireless thermostat should have a temperature sensor local to the receiver that can operate as a frost stat if the link is lost.)
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 18 December, 2023, 01:13:10 pm
Now I have a Honeywell T4R in my sticky little paws, it seems easy enough to connect.  Anyone hears a mitey xplosion from the E17 direction: it may have been more complicated than it looks.
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 18 December, 2023, 04:44:32 pm
Are you still with us?
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 18 December, 2023, 04:48:45 pm


I heard a bang, but that could just be kids fucking about with fireworks...

J
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 18 December, 2023, 06:01:57 pm
Haven’t started yet.  Receiver box is a fair bit bigger than the old thermostat and thus won’t fit in the gap 'twixt door frame and wall.  So some carpentry is required.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 24 December, 2023, 12:04:33 pm
(https://files.mastodon.green/media_attachments/files/111/635/132/466/791/212/original/82f2249733bb4f81.jpeg)

I've talked in this thread about how most of the low hanging fruit has been found for reducing our electricity use. But this graph shows nicely how it's come down over time. Despite there being 1m battery electric vehicles on the roads in the UK. Our consumption has dropped by about a sixth over the last 10 years or so.

J
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 24 December, 2023, 12:57:12 pm
How much of that is the collapse / outsourcing of BRITISH industry, thobut?  It's not really an efficiency win if you're having the widgets made in China with coal power.

I'm also reminded of that line from A Handmaid's Tale about Gilead reducing their carbon emissions by 78% in three years...
Title: Re: Home energy saving tips /ideas...
Post by: chopstick on 24 December, 2023, 04:36:03 pm
That's an excellent point.  Got me wondering where all the "cloud" servers are too.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 24 December, 2023, 07:04:10 pm
That's an excellent point.  Got me wondering where all the "cloud" servers are too.

There are 517 datacentres in the UK. People get grumpy if a page doesn't load within a fraction of a second, so locating a DC further away is suboptimal. Thus DC's need to be close to people.

This represents about 10% of all the world's DC's

J
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 24 December, 2023, 07:19:59 pm
There are also legal considerations (eg. data protection, copyright, etc), to say nothing of tax breaks, which will affect where international organisations choose to put their infrastructure.  I believe Ireland is disproportionately popular on this basis, to the point where electricity supply is becoming an issue.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 24 December, 2023, 07:40:45 pm
That's an excellent point.  Got me wondering where all the "cloud" servers are too.
My experience of cloud-based applications is that they're all slow and shit, so my guess is that the servers are on Mars.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 24 December, 2023, 09:07:33 pm
How much of that is the collapse / outsourcing of BRITISH industry, thobut?  It's not really an efficiency win if you're having the widgets made in China with coal power.
Chart 5.1 in DUKES (https://assets.publishing.service.gov.uk/media/64c23a300c8b960013d1b05e/DUKES_2023_Chapter_5.pdf) refers but I'm not persuading the magical cloud service to share a screen shot embeddably. UK Electricity consumption is down 19% since 2010 for both industrial and domestic sectors, and only 17% in the commercial sector. So there's some evidence of deindustrialisation but it's not the biggest thing going on.
Title: Re: Home energy saving tips /ideas...
Post by: Cudzoziemiec on 24 December, 2023, 09:20:30 pm
So the DUKES chart would suggest the biggest single factor is domestic consumers turning down the thermostats and off the lights cos they can't pay the bills.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 24 December, 2023, 10:07:13 pm
That and an unusually mild winter. Hitherto unusually.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 24 December, 2023, 10:11:36 pm
There are also legal considerations (eg. data protection, copyright, etc), to say nothing of tax breaks, which will affect where international organisations choose to put their infrastructure.  I believe Ireland is disproportionately popular on this basis, to the point where electricity supply is becoming an issue.
Yes, we absolutely cannot even consider data being hosted outwith the UK, Ireland was previously allowed but so was Belgium etc. Cos Breshit.



Sent from my IV2201 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: DaveReading on 24 December, 2023, 11:47:45 pm
That's an excellent point.  Got me wondering where all the "cloud" servers are too.

There are 517 datacentres in the UK. People get grumpy if a page doesn't load within a fraction of a second, so locating a DC further away is suboptimal. Thus DC's need to be close to people.

This represents about 10% of all the world's DC's

I'd be amazed if the world only had 5,000 or so datacentres.
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 25 December, 2023, 08:36:40 am
This link https://www.statista.com/statistics/1228433/data-centers-worldwide-by-country/ (https://www.statista.com/statistics/1228433/data-centers-worldwide-by-country/) annoyingly doesn't give a total, so I deployed pencil, paper and calculator to come up with 9380 worldwide. 517 in the UK is around 5% of that.
Title: Re: Home energy saving tips /ideas...
Post by: Tim Hall on 25 December, 2023, 08:44:26 am
Meanwhile the IEA says

Quote
Estimated global data centre electricity consumption in 2022 was 240-340 TWh1, or around 1-1.3% of global final electricity demand. This excludes energy used for cryptocurrency mining, which was estimated to be around 110 TWh in 2022, accounting for 0.4% of annual global electricity demand.
Linky https://www.iea.org/energy-system/buildings/data-centres-and-data-transmission-networks (https://www.iea.org/energy-system/buildings/data-centres-and-data-transmission-networks)
Title: Re: Home energy saving tips /ideas...
Post by: SoreTween on 15 January, 2024, 02:39:56 pm
I considered putting this in the vroom forum but there's so many EV threads it could get lost in I thought it better here.  Besides, it applies to all high load appliances not just EVs.

Chatting in the pub with a mate who is an electrician we somehow got onto cable sizes for showers & car chargers.  Possible I mentioned how annoyingly difficult it would be to upgrade the cable to my shower (10mm²) leaving me stuck with 8.5kW, aka pissy landlord spec.  As we chewed the fat on that he mentioned there'd been an article in the trade rag he gets about the cost of the electrical losses in cables where the installer fits the minimum size cable fit for the job, that can be as little as 4mm² for an EV.  He'd been surprised how fast the payback on bigger cables was.  Losses in cables (and the cost of) have always been known about wrt showers & immersions of course but now that we have high load car chargers running for hours and hours and electricity prices at record levels it is even more pertinent.  Said rag was still on his van so he lent it to me. 

The upshot of the article is if we have
Then for these cable sizes the cost per year in energy lost in the cable is:

So by asking your fitter to use 6mm² cable instead of 4mm you save £12.34 per year.  The article then compares the cost of those cables and the payback time is just under a year.  I knew there would be a break even time but I did not expect it to be that fast.  If you request 10mm² instead of 4 you save £22.42 per year and the installation payback is 1.64 years.

What the article doesn't do is put that weekly charge duration into any real world context, how far would you be driving per week for that surprisingly fast payback rate to apply?  In the example above we are putting 32A * 230V * 4.5h * 5d / 1000 = 165.6kWh per week into the car.  Charging losses in the car can be as much as 13% (https://www.caranddriver.com/features/a36062942/evs-explained-charging-losses/) so we get 144kWh of usable power in the car's battery.  Use your own miles per kWh to calculate how far you'd have to drive.

The loss costs above do work out pro rata on meters cable length so if you'd need a 12 meter cable just multiply the loss costs by 1.2.  The payback time will not change .

The article is online here https://professional-electrician.com/magazines/november-2023/ - page 55.

For my Leaf which seems to be averaging out around 4.5 miles per kWh year round (~4.1-4.2 now, was ~4.8-4.9 in the summer) 144kWh used is 648 miles.  I don't do that a month in my EV but that's partly because I have a dino burner for the long distance stuff and tip runs.  My payback would be closer to a decade.  However, I would ask for 10mm² or even 16mm² ignoring the up front cost.  Why?  Not because my usage pattern could increase in future shortening the payback rate.  It's more because 7.2kW is state of the art in home chargers today but what if 10kW home charging becomes available tomorrow?  Or 15kW?  That's not an outrageous possibility, showers have increased in capacity over time and now max out at 10.3kW.  If better home chargers become available in the future getting the cable changed will cost one hell of a lot more than the cost differential of the cable today.
Title: Re: Home energy saving tips /ideas...
Post by: De Sisti on 15 January, 2024, 05:45:31 pm
My boiler (a 14 year-old Worcester Bosch 30si) was serviced today by British Gas man.
Before he commenced his duties, he noticed my Campag-adorned Spa Audax (which was
still in the house) and started to ask if I cycled a lot.

I told him I did lots of 3 - 4 - 5 hour and sometimes longer rides. He then told me of his past exploits riding sportives (which he no longer does) and riding on the continent. It was a good
10 minutes or so before he started on the boiler.

He duly checked it out (as per his schedule), cleaned the magna filter and opened the packaging on the carbon monoxide detector that I had recently bought. He said he had recently installed a boiler similar to mine* and spoke very highly of the brand. My boiler is ready for the rest of the winter.

* Was he telling the truth?
Title: Re: Home energy saving tips /ideas...
Post by: grams on 15 January, 2024, 06:58:35 pm
The upshot of the article is if we have
  • 32A car charger (7.3kW)
  • running 4.5 hours a day 5 days a week
  • 10m installed cable length
  • 35p per kWh electricity cost

This person is spending £2989/year charging their car, and driving maybe 30,000 miles/year.

There's more money to be saved by not doing that.

(or at least switching to a more suitable tariff)
Title: Re: Home energy saving tips /ideas...
Post by: Diver300 on 15 January, 2024, 08:14:32 pm
Then for these cable sizes the cost per year in energy lost in the cable is:
  • 4mm² - £37.18
  • 6mm² - £24.84
  • 10mm² - £14.76


The other interesting point is how fast the optimum charge rate is to minimise losses. Halving the rate quarters the power losses due to resistive heating, but the car is turned on for longer. Many of the car's systems power up when charging is happening, so the longer that goes on, the more the losses. Mine peaks at around 500 W when waiting to charge, but I really don't know what is the average amount of power needed.

I suspect that both losses are pretty tiny compared to what the car uses.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 23 January, 2024, 07:32:06 am
Our oil tank is nearly empty.

Came back from christmas to a low oil tank. MrsC is in charge of ordering, but put it off for a few days. Ordered - they normally deliver within 2-3 days, this time they said within a fortnight .  .  .

So we are on week 2 of trying to keep oil use down. Thermostat at 10C overnight, 14 mornings and up to 15.5 evening.

Making good use of the peat stove in the evening, so we have a toasty warm room to sit in.

I'm finding fairly rapid adaption, quite comfortable working in a 15-16C room with a T shirt and jumper. MrsC making use of a fan heater in whatever room she is sat.

Honestly, if it were just me, I'd probably stick to these temperature settings.
Title: Re: Home energy saving tips /ideas...
Post by: robgul on 23 January, 2024, 07:48:28 am
Our oil tank is nearly empty.

Came back from christmas to a low oil tank. MrsC is in charge of ordering, but put it off for a few days. Ordered - they normally deliver within 2-3 days, this time they said within a fortnight .  .  .

So we are on week 2 of trying to keep oil use down. Thermostat at 10C overnight, 14 mornings and up to 15.5 evening.

Making good use of the peat stove in the evening, so we have a toasty warm room to sit in.

I'm finding fairly rapid adaption, quite comfortable working in a 15-16C room with a T shirt and jumper. MrsC making use of a fan heater in whatever room she is sat.

Honestly, if it were just me, I'd probably stick to these temperature settings.

When we moved house from an oil-fired one we were perilously close to running out of oil as we approached completion - the tank, as it should, had a slight tilt away from the outlet (as it should, to catch any condensaton that turns to water and would thus be under the oil) - so we jacked up the back of the tank to eke out the supply - we made it!

Might be worth a try? -I just used a car jack.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 23 January, 2024, 08:12:20 am
That wouldn't be a good idea; the outlet pipe is a rigid connection. Any movement of the tank would risk creating a leak.

We've already had the oil company refuse delivery because they smelled diesel and suspected a leak (the tank is smelly, it has been there decades, and there was a spill when the filter was cleaned).
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 03 March, 2024, 06:30:12 pm
I see that Tyne & Wear Solar are advertising a "COMPLETE SOLAR SYSTEM" for £8545 +0% VAT.

That doesn't say whether it comes with a Pluto and a full set of asteroids.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 06 March, 2024, 10:54:48 am
Just to report, before winter ends, that after our first six weeks living with a heat pump we are wonderfully warm and snug, the hot water is hot, and our all-in COP is above 4.5. So we are saving money daily relative to a gas boiler, even before covering a third of the electricity with solar PV.

Admittedly the house is now so well insulated and draughtproofed that we stay entirely ignorant of the temperature outside until we open a door -- the windows never need to open because of the MVHR -- so it's not a very hard test of the ASHP.

We started the project in the brief window between Putin and Truss when energy was expensive enough, and mortgages cheap enough, that it would cover its costs. Alas that didn't last, though in the long run we are happy to bet on gas getting pricier. Still, we're saving a huge amount of energy.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 06 March, 2024, 01:19:53 pm
How much would the insulation have saved if you'd kept a gas boiler, though?  And what is the payback period after subtracting the insulation benefits?

My guess is (a) most of the savings and therefore (b) it never pays back.

Of course, there are other excellent reasons to fit a heat pump, but economics aren't one of them.  Unless gas gets a lot more expensive relative to anbaric fluid.
Title: Re: Home energy saving tips /ideas...
Post by: Quisling on 06 March, 2024, 02:13:30 pm
How much would the insulation have saved if you'd kept a gas boiler, though?  And what is the payback period after subtracting the insulation benefits?

My guess is (a) most of the savings and therefore (b) it never pays back.

Of course, there are other excellent reasons to fit a heat pump, but economics aren't one of them.  Unless gas gets a lot more expensive relative to anbaric fluid.

The Gubbishment has committed* to gradually rebalancing the taxation between gas and electricity to reflect respective emissions.  This is already happening via the Climate Change Levy on commercial bills, but is not yet really being seen on residential tariffs....because there are 29m homes connected to the gas grid and it would take a bold government to stick 29m households straight into deep fuel poverty.

Of course, "economics aren't one of them" is a matter of timescale.  When natural gas runs out, as it will, this statement will no longer be true.

(*because they always follow through right ::-) )
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 06 March, 2024, 03:05:13 pm
How much would the insulation have saved if you'd kept a gas boiler, though?  And what is the payback period after subtracting the insulation benefits?

My guess is (a) most of the savings and therefore (b) it never pays back.

Of course, there are other excellent reasons to fit a heat pump, but economics aren't one of them.  Unless gas gets a lot more expensive relative to anbaric fluid.
We haven't attempted to break it out. The entire heating system had to be replaced anyway -- the whole house had to be gutted -- so the counterfactual of installing a new boiler into the otherwise heat-pump ready building would be absurd.

The HP unit we got is currently sold for £3,500, against a non-combi boiler at about £1,500, and you can make this difference back just by avoiding the gas standing charge over the unit's lifetime. But of course labour and the rest of the system are the most of it. The government paid £7,500 under the Boiler Upgrade Scheme so if you draw a circle around the right bits of our budget the heat pump made us an instant profit.
Title: Re: Home energy saving tips /ideas...
Post by: Arminius on 06 March, 2024, 03:10:48 pm
Just to report, before winter ends, that after our first six weeks living with a heat pump we are wonderfully warm and snug, the hot water is hot, and our all-in COP is above 4.5. So we are saving money daily relative to a gas boiler, even before covering a third of the electricity with solar PV.

Admittedly the house is now so well insulated and draughtproofed that we stay entirely ignorant of the temperature outside until we open a door -- the windows never need to open because of the MVHR -- so it's not a very hard test of the ASHP.

We started the project in the brief window between Putin and Truss when energy was expensive enough, and mortgages cheap enough, that it would cover its costs. Alas that didn't last, though in the long run we are happy to bet on gas getting pricier. Still, we're saving a huge amount of energy.

(I've not looked very far back in the thread, so apologies if you've already talked about it...)

Is there anything you can share about what insulation you've put in, what MVHR you used (& if you considered PIV), etc? We want to install an ASHP, though that's not going to be worth doing until we build our extension, but I'd like to hear some real-world experience of MVHR, etc. We already have some solar PV thanks to the previous owners, but I feel there's loads that we can still do. (1970s brick built semi 3 bed with some really odd venting/radiator position choices.)
Title: Re: Home energy saving tips /ideas...
Post by: Mrs Pingu on 06 March, 2024, 07:27:29 pm
I too would like to see more of your project, HTFB.
Title: Re: Home energy saving tips /ideas...
Post by: Wowbagger on 06 March, 2024, 11:41:26 pm
We had a chap come to look at our boiler a couple of weeks ago. I had a natter to him as he worked and he reckoned that under current rules & regs we couldn't have an air-source heat pump fitted because we are within 3 miles of the sea and they are very susceptible to damage from salty air.

I haven't bothered to check that but it sounds to be like a load of bolleaux.
Title: Re: Home energy saving tips /ideas...
Post by: FifeingEejit on 07 March, 2024, 12:14:54 am
on the basis there are many houses with them in port Charlotte on islay, it definitley sounds like bollocks.

Sent from my IV2201 using Tapatalk

Title: Re: Home energy saving tips /ideas...
Post by: Kim on 07 March, 2024, 12:28:44 am
We had a chap come to look at our boiler a couple of weeks ago. I had a natter to him as he worked and he reckoned that under current rules & regs we couldn't have an air-source heat pump fitted because we are within 3 miles of the sea and they are very susceptible to damage from salty air.

I can't imagine it would be against TEH RULEZ to install one (are there any rules, over and above the electrical ones that would apply to installing, say, an extractor fan?), though I could understand the government deciding not to subsidise them.
Title: Re: Home energy saving tips /ideas...
Post by: Flite on 07 March, 2024, 09:26:12 am
Our ASHP certainly haven't stood up to the weather in the N. Pennines.
Factor in huge maintenance costs when they go wrong, and nobody wants to service them because they are making too much money with new installations.
Also factor in the replacement costs in 10 years time, on which there will not be a subsidy.

Expensive lesson - we will not be early adopters for any future technology.
Title: Re: Home energy saving tips /ideas...
Post by: Jaded on 07 March, 2024, 09:58:41 am
ASHPs need those scummy *ankers in power to stump up the money.
Title: Re: Home energy saving tips /ideas...
Post by: Arminius on 07 March, 2024, 10:04:28 am
Our ASHP certainly haven't stood up to the weather in the N. Pennines.
Factor in huge maintenance costs when they go wrong, and nobody wants to service them because they are making too much money with new installations.
Also factor in the replacement costs in 10 years time, on which there will not be a subsidy.

Expensive lesson - we will not be early adopters for any future technology.

Oh, I'm sorry to hear that, that sounds really stressful for you.

Do you know what it is that's caused the problems? Wind? Rain? Cold? Faulty installation? A combination? I hope you have an easier time of it from now on.

We are lucky, I suppose, in that we won't be able to afford to build the extension for another 5 years or so, by which time ASHP technology will hopefully have improved further and there will be more of a market for repair/replacement. I'm still keen to get a good overview of what is possible now, what the issues are, etc so I can implement smaller improvements that will take us closer to our ideal house.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 07 March, 2024, 10:10:47 am
We had a chap come to look at our boiler a couple of weeks ago. I had a natter to him as he worked and he reckoned that under current rules & regs we couldn't have an air-source heat pump fitted because we are within 3 miles of the sea and they are very susceptible to damage from salty air.

I haven't bothered to check that but it sounds to be like a load of bolleaux.

Complete and utter b*llks.

Every new build around here (within 100s of metres of sea) has an ASHP.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 07 March, 2024, 10:41:39 am
I'd look at a GSHP if we bought a suitable property and it had a knackered oil boiler.  I see a lot of houses with an acre or two of paddock which would save a borehole.  GSHPs are generally competitive with gas or oil from the off, although a lot more expensive to install.  There's also no noisy fan or vulnerable outdoor bits.
Title: Re: Home energy saving tips /ideas...
Post by: Flite on 07 March, 2024, 02:47:12 pm
Quote
Do you know what it is that's caused the problems?

They were installed by a Mitsubishi approved company who were endorsed by the council.
The firm stopped trading a few years later, when the grants were less favourable, leaving us with no backup.
A plumbing company based 50 miles away, with no experience of heat pumps, took over the maintenance list.
I suspect the installation was never done properly, and getting even a basic yearly service has been a battle.
Every plumber/electrician/odd bod who looks at it finds something else wrong.
Mitsubishi would take no responsibility.

I reckon snow gets blown into the cabinets and corrodes everything.
We have had 3 master boards replaced (about £1000 a pop, but Mitsubishi did do one for free after I threatened to take them to trading standards for selling a product not fit for purpose). And repeated bills for call out charges and repairs (bodges)

Mitsubishi did a recent temporary fix which cost us several hundred pound, and the engineer (who does try to help) said the units only had a ten year life and would need replacing when they failed again.
But new units are not backward compatible with our plumbing and control systems, so the whole lot will need ripping out and replacing.
Of course, no subsidy for replacements....

Apart from the cost, the toll on our resilience has been massive.


Title: Re: Home energy saving tips /ideas...
Post by: JellyLegs on 07 March, 2024, 11:25:39 pm
Quote
Do you know what it is that's caused the problems?

But new units are not backward compatible with our plumbing and control systems, so the whole lot will need ripping out and replacing.
Of course, no subsidy for replacements....

Identical experience here.  Mitsubishi ASHP was brilliant for almost the whole 10 years we had it but when it failed we found to our cost that absolutely nothing in Mitsubishi’s current product range was compatible with our install.  Our quote for a replacement was over £10k as we needed to have all the old electronic magical wizardry ripped out, scrapped and replaced as well as some re-wiring and re plumbing done.  No grant or subsidy available so we saved ourselves 4k and reinstalled an oil boiler and tank.  Unfortunately imho Mitsubishi have sold all their early adopters right down the river.  I do wonder whether part of the reason nothing is backward compatible is that they had a major issue with the master board electrickery - you had 3 replacements, we had 1 replacement but in reality 2 as they did several component swap outs before they gave up and just replaced the whole thing.  Fortunately we got that done under guarantee having logged lots of overheat error codes almost from install.

Title: Re: Home energy saving tips /ideas...
Post by: Quisling on 08 March, 2024, 08:37:49 am
We had a chap come to look at our boiler a couple of weeks ago. I had a natter to him as he worked and he reckoned that under current rules & regs we couldn't have an air-source heat pump fitted because we are within 3 miles of the sea and they are very susceptible to damage from salty air.

I haven't bothered to check that but it sounds to be like a load of bolleaux.

The lifespan of a standard ASHP would be reduced by the increased corrosion rate on the coils. However, you can get ones with treated coils (corrosion resistant coating of some kind). I know Portsmouth naval base has installed a load of heat pumps. Choice may be more limited but there is definitely a solution.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 08 March, 2024, 10:51:06 am
10 years is not a great lifetime for what is basically a fridge without the yellowing plastic box. The industry reckons they last 20, in commercial use (as lots of them are and have been for ages) with proper servicing, and DESNZ assumes 20 for domestic ASHP too. But then we used to have a Mitsubishi dehumidifier in the flat which didn't last many years either. It's possible they're just crap.
Title: Re: Home energy saving tips /ideas...
Post by: Flite on 08 March, 2024, 11:04:14 am
Quote
Unfortunately imho Mitsubishi have sold all their early adopters right down the river

Sadly I have to agree.
No-one mentioned the life span of the units -we assumed it would be a lot more than 10 years.
It was a costly mistake that has caused us grief for ten years of what should have been a comfortable retirement.
I have no confidence that all the ASHP now being installed will not have similar problems in the future.
Title: Re: Home energy saving tips /ideas...
Post by: Quisling on 08 March, 2024, 11:47:16 am
Quote
Unfortunately imho Mitsubishi have sold all their early adopters right down the river

Sadly I have to agree.
No-one mentioned the life span of the units -we assumed it would be a lot more than 10 years.
It was a costly mistake that has caused us grief for ten years of what should have been a comfortable retirement.
I have no confidence that all the ASHP now being installed will not have similar problems in the future.

In comparison, a quick search of "domestic gas boiler lifespan" suggests modern domestic gas boilers are at best 10-15 year lifespan.  Given the significant electronics on board, mean time to first failure is usually significantly lower. Notwithstanding the above, I agree that an ASHP is potentially a more complex beast, although other geographic markets seem to manage issues better - due largely I suspect to a far more skilled workforce.

I installed a wood pellet boiler with support from the RHI in 2013. It's still going strong(ish) after 10 years, and likely to last another 10.  However, the annual maintenance costs are horrific, just for the regular service without any breakdowns. And the flue is rotting out, so that's not a decent alternative to gas either!  At the time, heat pumps just weren't sophisticated enough, but if I was replacing it tomorrow I'd almost certainly go for a heat pump rather than revert to fossil fuels.
Title: Re: Home energy saving tips /ideas...
Post by: rogerzilla on 08 March, 2024, 12:04:05 pm
Gas boilers used to last far longer than 15 years but condensing boilers have a somewhat harder life.  British Gas, being bastards, also claim boilers need replacing when they don't, because "part M14A-345" is no longer available.  It often turns out to be a generic 6mm bolt or something that never wears out, like the outer casing.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 08 March, 2024, 12:20:44 pm
For policy modelling the best-fit assumption on the data is that the remaining old non-condensing system gas or oil boilers will never wear out. My colleague Roger was trying, with far more effort than the question deserved, to resolve this in 2018. He retired before getting a better answer, and presumably before any of the boilers did.
Title: Re: Home energy saving tips /ideas...
Post by: JellyLegs on 08 March, 2024, 01:03:25 pm
Quote
Unfortunately imho Mitsubishi have sold all their early adopters right down the river

Sadly I have to agree.
No-one mentioned the life span of the units -we assumed it would be a lot more than 10 years.
It was a costly mistake that has caused us grief for ten years of what should have been a comfortable retirement.
I have no confidence that all the ASHP now being installed will not have similar problems in the future.

In comparison, a quick search of "domestic gas boiler lifespan" suggests modern domestic gas boilers are at best 10-15 year lifespan.  Given the significant electronics on board, mean time to first failure is usually significantly lower. Notwithstanding the above, I agree that an ASHP is potentially a more complex beast, although other geographic markets seem to manage issues better - due largely I suspect to a far more skilled workforce.

I installed a wood pellet boiler with support from the RHI in 2013. It's still going strong(ish) after 10 years, and likely to last another 10.  However, the annual maintenance costs are horrific, just for the regular service without any breakdowns. And the flue is rotting out, so that's not a decent alternative to gas either!  At the time, heat pumps just weren't sophisticated enough, but if I was replacing it tomorrow I'd almost certainly go for a heat pump rather than revert to fossil fuels.

I don’t expect my oil boiler to last more than 10 years, but I can replace that for <£3k at the moment.  I want to be green, but I can’t afford the risk of having to stump up an additional £7k every decade or so.  It’s slightly more complicated than that as the oil boiler is undoubtedly more expensive to run.  Current estimate is that the extra running costs over its lifetime will eat up all the savings made on installation but although it is painful, it is easier to find an extra £40ish a month rather than shelling out an additional £7k at time unknown.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 08 March, 2024, 01:31:13 pm
I know little about ASHP.
I know a bit about central heating systems (I've repaired my own gas combi, installed a oil central heating system in its entirety)

What confuses me is the statement

Quote
new units are not backward compatible with our plumbing and control systems, so the whole lot will need ripping out and replacing.

the plumbing should be simple - unless the Mitsubishi unit was doing something 'interesting' with a heat store. I looked at some diagrams and they just have a out and return, nothing different from, say, an oil boiler'

The control units - why the heck aren't these ASHP just working off a 'call for heat/call for hot water'?

Quite honestly, Flite, I wish I lived near you. I'd love to take a look and try to work out what is so mucked-up with the Mitsubishi design.
Title: Re: Home energy saving tips /ideas...
Post by: Mr Larrington on 08 March, 2024, 02:01:44 pm
If it’s any consolation, Lt. Col. Larrington (retd.) was also an early adopter and his first Samsung died on its arse after ~ 10 years too.
Title: Re: Home energy saving tips /ideas...
Post by: HTFB on 08 March, 2024, 02:38:55 pm
The control units - why the heck aren't these ASHP just working off a 'call for heat/call for hot water'?
It's not like a gas burner where either the flame is lit or it isn't, though: as its efficiency is so closely tied to the temperature difference it creates, the control needs to modulate the system output to match heat demand without cycling on and off, rather than just throwing heat into the pipes. New installations use weather compensation, so the output is set by an outdoor thermometer which estimates the requirement from a preprogrammed heat curve.  And the unit has at least two pumps to coordinate, for the refrigerant and the primary water circuit. The whole setup is unavoidably fiddly.
Title: Re: Home energy saving tips /ideas...
Post by: mrcharly-YHT on 08 March, 2024, 04:10:36 pm
The control units - why the heck aren't these ASHP just working off a 'call for heat/call for hot water'?
It's not like a gas burner where either the flame is lit or it isn't, though: as its efficiency is so closely tied to the temperature difference it creates, the control needs to modulate the system output to match heat demand without cycling on and off, rather than just throwing heat into the pipes. New installations use weather compensation, so the output is set by an outdoor thermometer which estimates the requirement from a preprogrammed heat curve.  And the unit has at least two pumps to coordinate, for the refrigerant and the primary water circuit. The whole setup is unavoidably fiddly.

But all of that should be in a control unit either in the ASHP, or wired to it. The controller that the householder touches should just be a 'heat to this temp at these times', 'boost' controller. That is hardly different from a system that has a heat reading from the hot water cyl, a heat reading from the rooms, an out temp and a return temp.

Sure, the logic has to be more complex, but the signal wiring really isn't any more complex. Actually, the sensible way to design this would be to have a logic unit in the house, and the outdoor therm signal to that. Then the logic unit just needs to drive the ASHP - which wouldn't need more than the standard 5 core.

My point is that Flite shouldn't need the house rewiring to replace the ASHP part. Maybe Mitsubishi decided to not use standard
Title: Re: Home energy saving tips /ideas...
Post by: Kim on 08 March, 2024, 10:19:24 pm
To be fair, it's not like gas boilers aren't a mess of incompatible standards, once you get into weather compensation or load compensation rather than a simple open/closed thermostat.
Title: Re: Home energy saving tips /ideas...
Post by: JellyLegs on 09 March, 2024, 08:43:53 am
.
My point is that Flite shouldn't need the house rewiring to replace the ASHP part. Maybe Mitsubishi decided to not use standard

Assuming similar setup to me, he won’t.  Broken bit for me was somewhere in the actual ASHP outside.  All the Mitsubishi control units (several different panels worth) and clever gubbins lived in the garage with the hot water cylinder and several other bits that I dont pretend I understood.  There was a lot of rather untidy wiring and electronics there!  Heating controls / thermostat etc that I set temperature and hot water programmes on lived on the wall by the living room door.  I could buy a new version of the Mitsubishi pump unit for, iirc, in the region of £3.8k which would have been my way to go if that was it, but unfortunately I was told that pump is not compatible with all the Mitsubishi controls in the garage so I needed to rip out and replace that which is where the price spiralled out of control.  I glazed over at that point, but there was also some reason given as to why I would need some re plumbing done in the garage / outside as some requirements there had also changed and that added another few hundred to the cost.  I presume just a case of the manufacturer moving inlet / outlet positions or changing pipe size requirements but it added to the already unacceptable cost.
Title: Re: Home energy saving tips /ideas...
Post by: chrisbainbridge on 09 March, 2024, 09:20:32 am
I get the impression that ground source is both more efficient and longer lasting with companies quoting 20+ years and zero servicing costs.
We have a large garden which would allow a borehole and we have a garage which already has the solar controls and boiler in it.
The plan would be to use the solar/gshp for hot water and most domestic heating with the gas for winter.
Has anybody got a similar system and any views on manufacturers etc.
Title: Re: Home energy saving tips /ideas...
Post by: quixoticgeek on 09 March, 2024, 12:45:24 pm

one of the issues with heating systems, is that for most people it's a distress purchase. Most people don't replace their boiler cos it's 20 years old and it's a good idea. They do it cos it's 20 years old and it just broke.

Ten years from a ASHP doesn't feel totally unreasonable if it's 7k, that's 58 quid a month. Stick that in a savings account each month, and after ten years you have the money anyway. Yes, there is the issue with non interoperability of parts from the first generations. Unfortunately that's common with most technologies. (try plugging in a 100 year old electrical appliance). As the tech becomes more pervasive, and more mature, the interoperability will improve.

Sorry to say that some of you are paying the price for being early adopters, but I would hope it's improving.

J
Title: Re: Home energy saving tips /ideas...
Post by: barakta on 09 March, 2024, 03:21:52 pm
I think the issue that Flite is reporting is the constant breakdowns, stress and costs incurred even within that 10 years, seems very shoddy service from Mitsubishi to be honest. I'd be making "consumer rights act 2015" noises about some of those costs myself but that's a stress and hassle to enforce in itself.

It hasn't been a smooth 10 years for some folk, and having to undergo a whole reinstallation down the line which was not clearly indicated as a possibility smells like misselling at best. I'd be pissed off. Councils need to ensure their installations are secured properly and that if the company goes bust there is high quality followup, or maybe in-house it.
Title: Re: Home energy saving tips /ideas...
Post by: chrisbainbridge on 09 March, 2024, 03:53:11 pm
I too think Flite has been really badly done by.  As I understand it an ASHP is basically the guts of an air-conditioning unit connected to some hot water.  I have had an air-conditioning unit in my office for about 15 years with no servicing for about 8+ as we forgot and I presume the company forgot/went bust/etc.  It still works perfectly well to both heat and cool.  I suspect that Flite and others were sold some seriously shoddy kit.

This for me is the biggest worry along with getting cowboys to do the installation.  I know of one failed builder who has reinvented himself as a heat pump installer with no experience!
Title: Re: Home energy saving tips /ideas...
Post by: JellyLegs on 09 March, 2024, 06:36:07 pm
Ten years from a ASHP doesn't feel totally unreasonable if it's 7k, that's 58 quid a month. Stick that in a savings account each month, and after ten years you have the money anyway.

That was an additional £7k over and above the cost to replace an oil boiler.  To cover the whole cost would be just over £75 a month.  Yes, doable but that comes close to doubling the running costs of the system in my case taking into account the electricity I fed it of around £80 per month averaged over the year and an annual service cost of about £150 depending on whether the antifreeze needed topping up or not.  Plus there was the very ungreen creation of a lot of probably unnecessary electronic waste which dented the environmental credentials of the whole venture, at least for me. And the doubt factor of how long it would actually last.  I had nothing in writing when I checked but my recollection is I was told 15-20 year’s anticipated lifespan and I got 10.  Guess what, they still verbally say 15-20 years but are only willing to offer a much much shorter guarantee.  Don’t get me wrong, I really liked the technology but didn’t enjoy being shafted by Mitsubishi who washed their hands of me.  I don’t blame the installer, they followed all the advice from Mitsubishi and they serviced it regularly throughout its life.