This month I put the heating on set to 18. It automatically clicks off when it’s got to 18 and it goes off entirely at 10pm until the morning. I’ve looked at usage and it says the heating has been on an average of 7 hours a day. This had meant a bill of 502 pounds. We are in a three bed detached. That is almost a quarter of my income and I have one dc in nursery, single parent. I am so worried about the coming months, is 7 hours a day average a lot? I thought I was being careful.