Last seen: Sep 17, 2025
@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...
@goody I couldn’t agree more! I just meant they usually get it wrong in the opposite direction and leave a grossly oversized heat pump 😁
@alfapat No it wasn’t attached to the email. Can you resend it please.
@alfapat Im even more confused now as looking at the house I wouldnt have guessed more than 8kW would be needed. Thats not an exact science I know but...
@alfapat The lockshield valve is the one opposite the TRV. Heat pumps dont play well with TRVs and they are not necessary when using water law. Just s...
@alfapat So the EPC pretty much matches the heat calculation. By all means tweak and see it that helps. If it doesnt then try to look at any upgrade...
Latest Posts
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