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Last seen: Nov 11, 2026
I think the argument for the return is to avoid any chance that it reduces flow temperature and thus compromises efficiency. But it shouldn't if well...
SOFAIK it doesn't have to. My understanding is that there is nothing magic about 5C, its just a sensible design value in most domestic situations so ...
I cant believe I didnt do something similar at some time with your data. Looking back I did, this is 19/9/23-3/12/23, the units will be degree-minute...
Potentially a significant finding though since the expectation from the physics is that energy use is proportional to the difference. However are the...
I think @cathoderay is correct and it goes even further (unfortunately). Robust empirical evidence (from which we might draw general as opposed to sp...
Thanks for raising this and more particularly enumerating the options in a way that I havent previously seen. It may take a few circuits of the buoy ...
I dont doubt you are right. That said I did some calculations a few days ago of the ratio (for a Vaillant heat pump) between the theoretical max...
I have recently been pondering, while trying to help another participant in the forum, why some heat pumps bother to modulate the water pump to mainta...
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Degrees of Separation
Latest Posts
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RE: Buffer tank on a 2 x 14kw Ecodan system
@fosterl2, ah, that changes the picture somewhat. I’d a...
By Mars , 4 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 , 7 hours ago
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RE: Why don't people choose heat pumps?
@susannasaunders The link I have found may provide a li...
By Toodles , 10 hours 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 , 1 day ago
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
@batpred I mentioned earlier that targeting the payment...
By Toodles , 1 day ago
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RE: Adventures in heat loss calculations
@toodles thanks! So as suspected, around a doubling of ...
By SusannaSaunders , 1 day ago
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Six books in three years and I think I’ve now covered j...
By Mars , 1 day ago
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RE: Grant Aerona3 13kw - Buffer Tank - Heating Journey
@heymikey Well done in achieving as nearer a match acro...
By Toodles , 2 days ago
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Grant Aerona - Weather Compensation and Schedules
Im trying to set up a friends Grant Aerona. The WC curv...
By bontwoody , 2 days ago
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
@jamespa I agree, the efficiency of Cosy Cooler ought...
By Rob of York , 3 days ago
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RE: How much of your renewable and home setup would still work if the internet went down?
I think you're right! 🤨
By Transparent , 3 days ago
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RE: Renewables & Heat Pumps in the News
ECO4 muddies the water somewhat, and then some. I thi...
By cathodeRay , 3 days ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
If there is a drain nearby that's exactly what I would ...
By JamesPa , 3 days ago
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I think that CCGT plant in Lingen is more likely to suc...
By Transparent , 5 days ago
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