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Last seen: Sep 23, 2026
Heating systems for HP's are set up so that the hp either supplies hot water to heat the dhw tank or hot (but generally cooler) water for the space he...
It is a fundamental feature of ashps, traceable pretty directly to the laws of thermodynamics, that they are more efficient if the temperature of the ...
Assuming I understand the question correctly (which I may not) then yes there is. Plot COP vs flow temperature, then work out the COP (at some repres...
As you say its encouraging that MCS recognises it has shortcomings. Through my two year old yet-to-conclude-heat pump journey I have come to questio...
kW/s, that's not a real unit (yes I know it's what heat geek says). You mean kW. The heat geek figures are a bit better than I remembered, 10mm mic...
We are slightly confusing two things here, the total system capacity (~12kW?) and the emitter capacity (linked to pipe size). They are separate but l...
OK 30MWh/yr is quite high. Can you tell us something about your house and water usage pattern?
3MWh/year is pretty tiny, are you sure of this figure? If this is correct then it implies that your house requires a boiler with an output of roughl...
I am guessing that they use the hp manufacturers pre plumbed cylinder to ensure that their rookie plumbers can't completely screw up.
Are you heating in June? Or is it in cooling mode? Are the sensors on external pipework or inside the unit?
Definitely. Start by asking for the current annual consumption (or better still smart meter readings) and heating pattern. That will give an estimat...
I feel for you. My _whole_ house needs 7.5kW but the MCS brigade insist it needs 16kW. I am fortunate that I spotted this before agreeing to an inst...
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Degrees of Separation
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