Help protect 3-port valve by switching off hot water last

[The Natural Philosopher]

My DHW is about £100 a year. In winter CH is £100 a WEEK.

[MM]

You must have either a large house or like it very warm, possibly both. 500 litres lasts me about 10 months usually. However, I *don't* like a very warm house. Some people's houses are unbearably hot. OK, I suppose, if there are infants or old people, but I'm not exactly young myself and I don't like high temperatures. Two years ago, Toulouse in the south of France was awful. 32 deg at 3:00 a.m. It was a relative's house and they don't have air conditioning.

MM

[Roger Hayter]

Sounds good to me!