Best to have hot water come on when away?

purpleparrotuk · 16 December 2018 at 9:58AM

Hello. I have an unvented system with the hot water cylinder in the loft. When on holiday I turn all the radiators off on my evohome system, leaving them on the frost protection setting. Is it ok to keep the hot water completely turned off for 2 weeks? Or is it best for it to heat up a couple of times a day to prevent nasties in it? Also worried about the cylinder and pipes freezing in the loft in this cold weather.

bris · 16 December 2018 at 12:39PM

Keep it off, when you get back run the cold water for 5 minutes to flush the pipes then put the hot water back on.

No point wasting energy you will never use.

Best to have hot water come on when away?

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