I do a bit of volunteer work on Tuesdays in what was an old Victorian school. During this cold spell they have had to keep the heating on 24hrs to keep the cold out. Today it decided it needed a rest and within half an hour of it going off it was nearly as cold inside as out. The place might have CH and double glazing but the walls seem to suck the cold in.
Ah well, now I am home I am having to use my CH instead of theirs - damn!