Why is keeping the heating off in spring treated like a religion in the UK?

Posted by Ok_Listen_5358@reddit | AskUK | View on Reddit | 388 comments

Last night it dropped to 5c outside. Heating was off. House sitting at about 14c. I'm not from the UK and I'm trying to work out the actual rule on this.

Nobody seems to consider just topping it up for an hour in the morning or evening when it's clearly cold inside. It's either "the heating is on" in the full ceremonial sense, or it's off. There doesn't seem to be a middle gear.

In most of Europe in April you'd put it on for an hour and that's it, take the edge off the room without making a thing of it. Here it feels like a moral question. "Just put a jumper on" doesn't really cover it when the bedroom is 14c and the walls are damp.

So the actual question: in a normal middle-class British household, what's the indoor temperature or the calendar date that finally makes it acceptable to fire up the boiler for an hour in spring? Or is the answer just "you wait for next October"?