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Last seen: Oct 10, 2026
Thats encouraging. As I say normal motion in pipework should be inaudible, its valves and bends that cause noise. Swept bends are better than elbows...
@ecoste In that case there is something very wrong. 2.4kW consumption would normally require the heat pump to be running nearly flat out. If its ...
They are better but still difficult to read. Can you please upload the image files rather than pasting them as images, then they can be downloaded at...
Nice neat plumbing job! I cant see the plant room on the rather low resolution plan. Where is it? Also the key drawing 12327-1000030975 is too lo...
ah - not the greatest routing. Is it possible to insulate and/or isolate the pumps from the structure?
Not sure I agree with that. Thermodynamically lower deltaT=higher average emitter temperature for any given flow temperature = lower FT needed at t...
This looks odd: Heat transferred = F*DT*.0633=18*3*.0633=3.4kWPower consumed = 2.4kW 3.4kW delivered to the house is not unreasonable at ...
I think there may be some oddities about the COP reported by the app at present and possibly going forward. My app (v3.31 build 24435) no longer se...
Is it still cycling, at what FT/OAT? Mine appears currently to be at the 'sour spot'. OAT about 11C, still just cycling, COP 3.9, target FT ~32. I...
Is it possible there is air still trapped in the system. Mine took a month to clear and despite the presence of an auto bleed valve one radiator need...
I cant remember what Ecodan reports but some heat pumps report energy consumed and environmental gain. In this case cop = energy consumed/(energy co...
I would personally be sceptical about reaching any conclusion that goes against the norm of heat pumps. In the end the Cosy is a heat pump, subject t...
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Degrees of Separation
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RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
You could be right. I am debating with myself about doi...
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OK so ZEB is basically a variant on a storage heater, b...
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@editor I suspect that the Heat Geek online quote is a ...
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RE: Adding additional Solar Panels to a DC coupled battery system
Ah, yes. Thanks for clarifying.
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