The windows in my drum have today been switched to summer mode, in which they will stay until such time as the weather dictates otherwise.
Bedroom. Sash x 2. Locked open 50mm gap at the top of both.
Office. Sash x 1. Locked open 15mm gap at bottom (< than squirrel size), 60mm gap at top because convection/circulation.
Or something.
Bathroom. Casement x 1. Locked fully open.
Kitchen. Casement x 1. Opened and closed throughout the year, as kitchen conditions dictate.
ETA - Also, a few weeks ago I removed 3.5 Togs from my quilt. I suspect that in the next few weeks they will replace the remaining 11 Togs.
The Dyson fan has yet to come out of hibernation .