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Last seen: Aug 16, 2026
@wawyed Thats the only thing I could think of that might account for the difference. It looks odd but I doubt its affecting COP much
@chandykris Yes, I did that, just bought two big radiators and shifted the others into different rooms. No problems.
@wawyed Mine isnt doing that, is your water pump PWM controlled?
@johnnyb Is that different to what Toodles has shown in the response above?
@toodles Thanks, thats actually more than I expected so quite useful.
@alfapat So this is the lockshield valve Sometimes they have knurled knobs on which can be used to adjust them, but if not then just use a smal...
@alfapat Sorry, I didnt see the temperature readings. So you are losing about 4C by using the buffer which I think is about an 8% loss in efficiency. ...
@alfapat some installers try and set up the heat pump to run like a conventional boiler with TRVs. It’s an incredibly expensive way of doing it but ea...
Yes thats right, although I dont totally use all my battery capacity and its closer to 4.5 kWh charging rather than 5kWh per night I think what Im s...
@alfapat Hi Pat, sorry Ive been away for a few days so havent had a chance to catch up. Im not sure you are doing the radiator valves correctly. The...
@alfapat I will be interested to see how the flow and return from the buffer compares with that of the heat pump.
@alfapat It is larger than it looks at 200+ m2 but didn’t you say that was the old EPC before the insulation improvements? Im just struggling to se...
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Degrees of Separation
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D'oh - of course. I shouldn't post before my brain is f...
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
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Nothing attached! I have rads but UFH makes the case ...
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
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@Mars Good questions! The downstairs unit did the maj...
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RE: Heat Geek mini store vs pump size
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@tomtheheatingengineer, thank you, and welcome to the f...
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