I'm moving back to the uk after living abroad 15 years. It's not 100% final so we can back out. I'm starting to get cold feet about it only because of the persistent background chatter of it being 'broken' and everything expensive. We visit yearly but a nice area and only in summer. I know how much the average heating bill is from google but I don't know what the average house or usage is. We'd have a larger old 3 bedroom terrace , north west England. If you hear a similar place to around 23* , how much is it and for how long.