why does my ground source heat pump use 10 units a day when the house is empty and the central heating is off? There is also water heating. I have turned off the immersion heater which has made no difference. The pipes from the pump to the manifold and to the water tank are about 20 metres long, though well insulated.

Asked by patrick on 11/19/2014 0  Answer

ManualsOnline posted an answer 10 years ago

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