Hi all, my house is going to be empty overnight and I'm wondering if I should leave the heating on to pevent frozen/burst pipes. Can this happen with combi boilers? I'm reluctant to leave it on as its a huge house and will cost me a fortune, plus there's no timer so it will have to stay on constantly for about 24 hours.
But I suppose a bigger gas bill is better than a rip off plumbers bill!
Thanks in advance. Will rep (sensible) replies!