boiler settings to save energy?

maggotbrain asked:


hey, i am trying to lower my energy bill and save energy.

I have the rehema avanta boiler. I have turned of Central heating and have lowered the domestic hot water temperate to 40 degrees celcius. The other setting i am able to change is whether to have domestic hot water preheating turned on or off. Would having this on or off save more energy and what does it mean? thanks

Carmen

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