Yes, I go off temp not time of year. I know there are many who can't or are worried about affordability but heating is something I've always prioritised and DH and I are on the same page. We've been on holiday once in 5 years, my car is a 2008 plate, my phone is 6 years old, but if we're cold heating goes on. I have respiratory conditions that are worse if I get cold and I'm pregnant and have a toddler.