BBCNEWS BBC News June 4, 2024 08:25:00
The door. if you don't use certain bedrooms then turn it down or turn it off— bedrooms then turn it down or turn it off and _ bedrooms then turn it down or turn it off and shut the door because warm _ it off and shut the door because warm air— it off and shut the door because warm air will still transfer to colder— warm air will still transfer to colder spaces and you will end up indirectly— colder spaces and you will end up indirectly heating those rooms. if you have — indirectly heating those rooms. if you have a — indirectly heating those rooms. if you have a hot water cylinder ...