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Last seen: Nov 6, 2026
@jamespetts Lots of things to unpack here so I will confine my comments to a couple you may find helpful With a Vaillant the set temper...
True! I think so, or fit fancoils! From your figures the system is more for cooling than it is for heating.
Do you mean kWh/day? Thats essentially nothing unless its just for DHW? You arent doing any material space heating on 2-4kWh/day! Is it possible y...
Whoa. Is it also used for heating? If so then it needs to be sized to meet your heating demand. Also beware, some low output heat pumps are simply ...
Yes but... it can only modulate so low. If the demand is less than the min modulation the water temperature will overshoot(heating)/undershoot(coolin...
Your short cycling is occurring because the heat pump can't modulate down enough to match the demand. If you increase the system volume as suggested...
Without a survey their only source of data is probably MCS. We know what they are like!
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