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Last seen: Nov 12, 2026
I guess, but it is only a guess, that the excess demand problem is as much, if not more, in the grid equivalent of the 'last mile' as it is in generat...
I agree with the inference from this comment, namely that weather compensation has been mandated elsewhere for many decades. We didn't which, IMHO, w...
They definitely can be run on pure WC, and arguably its the best method (albeit probably using a temperature sensor as a limiter). However they have ...
Which are... Is there even a heat pump available that either doesnt have an internal IAT sensor or cant take an external thermostat input as a limit s...
@jancold I tend to agree with your analysis The summary says this: Class I – A room thermostat that controls the on/off operation of a heat...
I agree that the UK heating industry is well behind the curve, which accounts in part for the poor heat pump installations that plague this site. The...
Pump speed needs to be sufficient to carry away the energy, any less wont do, any more is wasting energy. The energy carried away is flow rate (l/s)...
That's exactly what my analysis above would predict. After the rise in oat the bit of the house you live in continues, for a while, to lose energy t...
This is definitely an interesting scenario. What I think happens is this. The house fabric starts (when it's cold) with a thermal gradient continual...
Phew! I thought I was going mad. In terms of #2 rapidly warming OAT is an interesting phenomenon in terms of understanding the thermal dynamics of a...
I'm now a bit confused. I thought we had more or less proved that the problem lies with the water pump and thus there is insufficient flow of heat fr...
More expensive, larger, louder and won't modulate down so low and are thus less efficient for space heating if the house doesn't need it. If you real...
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Degrees of Separation
Latest Posts
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Should I change my cylinder when changing from a gas boiler to a heat pump.
I have 178 L Gledhill unvented cylinder which was fitte...
By David , 2 hours ago
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Should I change my cylinder when changing from a gas boiler to a heat pump.
I have 178 L Gledhill unvented cylinder which was fitte...
By David , 2 hours ago
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RE: Plug and play solar. Thoughts?
Impressions so far from the one I've installed are that...
By EtchedPixels , 4 hours ago
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@batpred The Daikin temperature probe protrudes from th...
By Toodles , 7 hours ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor And as an occasional contributor, may I say wel...
By Toodles , 9 hours ago
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
They don't have to try. Our entire system is d...
By EtchedPixels , 10 hours ago
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RE: Why don't people choose heat pumps?
Fair enough. I guess I was thinking of pipes that run ...
By JamesPa , 10 hours ago
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RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
Got excepted for the grant now so thanks for the replie...
By Chilli304 , 14 hours ago
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Daikin Altherma 3 R F+W, room thermostat control, weath...
By JanHarley , 15 hours ago
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RE: Buffer tank on a 2 x 14kw Ecodan system
Pretty much as I had guessed in my crude scaling from m...
By JamesPa , 18 hours ago
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RE: Help me keep the faith with my air source heat pump installation
Well you have a vibration generator running at some fre...
By bobflux , 1 day ago
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RE: Who's your electricity provider and what's your tariff?
@downfield Thats a decent rate, I’m shocked they hadn...
By Papahuhu , 2 days ago
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RE: Adventures in heat loss calculations
@toodles thanks! So as suspected, around a doubling of ...
By SusannaSaunders , 2 days ago
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