> If they aren't to be convinced of the cause then there's no choice right? Then your bedroom will just be colder than theirs [..] Not wishing to be completely

> If they aren't to be convinced of the cause then there's no choice right? Then your bedroom will just be colder than theirs [..] Not wishing to be completely silly, but you've obviously not met my wife and daughter. You are correct in one sense, there is no choice: the [whole] house will be warm. At a slightly less silly level: I'm not sure we win the climate debate by picking fights within our immediate families.