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Last seen: Nov 12, 2026
I'm not an ecodan expert but this looks like defrost to me. The give away is that FT goes below RT.. Conditions for defrost are about as bad as they...
I think you are very likely right unfortunately. This is a somewhat surprising conclusion given that the system was presumably designed by Freedom an...
I confess Im a bit mystified. How was the WC curve determined. If it was determined experimentally, then cycling and losses in PHE etc would be, at ...
It claims to use the energy integral as part of the cycling control loop, but is silent about how the defrost control loop works, so I dont know! ...
One might expect (hope) that the heat pump takes this into account in the control circuit, by accumulating differences and overshooting to compensate....
OK, so (assuming Freedom are correct) you actually have two problems. The principal one is that the max pump rate is insufficient, leading to your ou...
All agreed In detail that is true. However its a dead cert that its primary control loop adjusts the compressor frequency and fan speed to a...
I should add to the above one other thing. It is just possible that the Midea is designed for a deltaT higher than 5C at max output, high enough th...
OK wrong wording on my part. Please read 'infer' instead of 'say'. Regarding the rest of this quote please read again this comment As I ob...
Fair enough. Perhaps your daughter could be asked to contribute to the cost or reminded that she will (likely) outlive you and will thus suffer the e...
I don't think you can say 'This is not how a heat pump is supposed to run'. SOFAIK there is nothing wrong with operating a fixed flow rate (and thus ...
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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 , 34 minutes 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 , 34 minutes ago
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RE: Plug and play solar. Thoughts?
Impressions so far from the one I've installed are that...
By EtchedPixels , 2 hours ago
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@batpred The Daikin temperature probe protrudes from th...
By Toodles , 5 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 , 7 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 , 8 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 , 8 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 , 12 hours ago
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Daikin Altherma 3 R F+W, room thermostat control, weath...
By JanHarley , 13 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 , 16 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


