They use a Norwegian developed method of lighting, where you put the logs at the bottom and light the kindling on the top. It means that, as wood contains a huge amount of combustible gas, more of the gas gets burnt off at start up instead of it just flowing up the flue and adding to the pollution. You need a fair amount of kindling for that though, but once you get the hang of it, it works really well as you don't need to put cold logs on kindling to get a fire going and end up filling the house with smoke.
I think the key to getting Morsø stoves or any other stove going really well, is to use properly seasoned wood (any wood, btw), putting a couple of bits in et each fuelling and allowing a fairly thick 2-3cm bed of embers to build up during the firing. Using smaller bits of firewood works much better and gives better heat than a single great lump.
At the end of the day I don't put any more wood on to try and get it to burn through the night, but close the air vent down (but not off) when the wood has turned to glowing charcoal. In the morning the stove is still lukewarm and there's still embers in the ash that I use to start a fire in the morning before we all go out for the day. You need a blowpipe for that, mine's a bit of copper tube about 2' long.
Living in a thatched timber house, the last thing I need it a chimney fire during the night and fuelling up and closing off the vent before bedtime is a really good way of coating the flue with tar, which can lead to a violent chimney fire and burn the house down.
I like a fire, just incase you were wondering.
I've heard that you can get Spruce and Larch up your way for pennies, as they can't sell it for some reason.