Going away for long winter holiday - what to do with water and heating

macman

The pipework most likely to freeze is not on the CH primary circuit, but on the loft rising main/supply pipes and loft header tank. Turning on the CH for an hour won't move water through those, so you'd be better off ensuring such pipes are proprtly lagged, and maybe leave the loft hatch open.

Goldiegirl

Thanks for all the input


We've decided to keep the heating on at a low setting and turn the water off at the mains


It's not really about saving money, just doing the best thing to keep the house safe

dbriggs

My boiler has a frost setting which seems to work well. I've always been told that the chance of frozen water in pipes was a bad thing!

Terry98

What would happen if you switched the mains water off,left the boiler on and the system then developed a leak?

Do all boilers shut down if the pressure drops below a certain level?

gingernut352000

Further advise to double check insurance may also have a min temp I know min says the building temp should be 12 degc so we have ours set to 15 as a min just in case

Kiran

If you turn the water off and then open your taps the pipework won't be under pressure and also gives the water room to expand if it did freeze. I'm not sure if there would be a corrosion issue though given the time it will be vacant?

Terry98

Kiran wrote: »

If you turn the water off and then open your taps the pipework won't be under pressure and also gives the water room to expand if it did freeze. I'm not sure if there would be a corrosion issue though given the time it will be vacant?

So it makes sense to switch the water off,open the taps and leave the boiler on?

We had a new combi boiler fitted a couple of years ago and had a couple of small radiator leaks just after it had been fitted. Since then everything has been fine.