Safely reducing average DHW temperature - energy-saving suggestion

nothanks · 2022-10-08T09:04:26+00:00

Someone ("The Todal") on the legal forum has just made an interesting energy-saving suggestion that I hadn't seen before - has anyone here done it?The suggestion is to set the DHW temp lower than would be needed to prevent legionella and to use the immersion heater, on a timer, to boost the temperature to 60+ degrees once a week (or so). It's a long way from the DHW tank to the furthest taps so I have a circulation loop and pump to reduce the time and wastage for hot water to reach the taps, but this means heat loss from the pipework. Running at a lower temperature would seem to be advantageous and the cost+pain of making the change is trivial.Some questions are: how often does the water temp need to exceed 60 degrees? for how long? and are the legs from the loop to the taps a concern with lower temperature?

Oct 08, 2022 Last reply: 3 years ago 40 Replies

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Algernon Goss-Custard 3 years ago

Rod Speed snipped-for-privacy@gmail.com posted

Clearly you don't know much about UK building regulations, Rod!

Go ahead.

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Safely reducing average DHW temperature - energy-saving suggestion

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