There are a lot of strategies that can help to avoid it being total hell indoors in this hot weather. We've had many threads about Air Con and Air Coolers but these things are not widely used in the UK and it's too late to contemplate AC because they've all been sold!! There are other ways, though. It's hard to realise just how much the fabric of the house heats up, whatever you do with doors and windows. The received wisdom seems to be to shut all doors and windows and to close curtains. It certainly works in downstairs rooms for us. Some idiot members of the Great British Public were interviewed on TV and said that strategy is "rubbish" and that the Met Office had no idea!! That system works well but you can do better by closing internal doors and not using fans in unoccupied rooms. The heating effect of a poorly insulated house seems to be actually more obvious than the heat loss in winter. Ceilings can get noticeably hot during the day and I've found that avoiding the use of a fan helps to reduce heating of the room air (no convection with heat source at the top) A crazy thing that I have noticed is that, despite a good flow of cool nighttime air, the room still feels hot due to radiation from the ceiling and walls. The once popular hot air heating systems lost credibility when it was realised that the cold walls made a room feel far cooler than the air temperature would suggest. Same thing but just the other way round. Radiation counts. I was wondering if anyone has other pet methods for survival (apart from going to the local library all day).