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Last seen: Nov 3, 2025
Oh, 260m2 house
In short, Radiators - although the upstairs ones basically never come on as it never gets cold up there Buffer tank 20l and 210l unvented cylinde...
@heacol the house is pretty well insulated. Our losses are around 30w/m2 with an EPC score of 93. So no idea which mode is best. I don't think we have...
@heacol the weather compensation is directly on the heat pump which is connected to the Nest so it preadjusts the water temperature before the thermos...
@heacol the table had a min, mean and max COP. I took the mean as my number. It will be interesting to see the outcome, especially as the system has w...
@derek-m yes that's true, but there is a pretty big difference between wholesale costs to generators and retail costs to residential heating - my poin...
I got these figures from Midea for the 12kw unit Water Temp COP 30 35 40 45 50 55 Outdoor air temp -25 2.29 ...
@derek-m if gas remains the cheapest method of heating, no one will switch. That's just straight fact. Gas heating has to be made more expensive in co...
@derek-m the only way to out gas will be to make it expensive. Move the industry costs for carbon off electricity and onto gas. From my understanding ...
@derek-m little more complex than that. Most batteries have a "peak charge" power - mine is 3.2kw, tesla is a little higher at 5kw. This essentially c...
@stevebrockie3 do the insulation first then you'll need a smaller ASHP. Our house is 260m2 and we only have a 12kw unit. Plus it'll allow you to use l...
@info how would you store that heat in a battery? You would need a buffer tank of some kind. I know it's possible, but it would need a tank and heat e...
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RE: The good, the bad and the not that great – my heat pump installation
@editor I completely forgot to document wha...
By Burtis , 49 minutes ago
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RE: I need help with Ecodan ASHP
@f1p It turns out there have been a solar panel install...
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews your installer would be right to say that the...
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
@trebor12345 That curve looks healthy to me. I woul...
By JamesPa , 5 hours ago
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RE: Tradespeople on Their Phones: What’s Acceptable When They’re Working in Your Home?
Actually, that's a very important point. I've only ev...
By Majordennisbloodnok , 12 hours ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders can I just add to @rob-of-york s comm...
By JamesPa , 16 hours ago
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RE: Aerotherm and weather compensation
These are likely inked. The basic explanation is tha...
By JamesPa , 16 hours ago
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RE: Electrical works for air to air heat pump
agree with above. I have not had extra costs added wh...
By Batpred , 17 hours ago
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Good to hear that you found a solution. Absolutely a...
By Batpred , 17 hours ago
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RE: Are there any comparisons of DHW heat stores around?
@sarahemmm I have done things the opposite way round I ...
By Toodles , 1 day ago
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RE: How will removing the standing charge on gas bills benefit heat pumps?
The BUS grant funding for 2026/27 will run out at the c...
By Rob of York , 3 days ago
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RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
By Mars , 4 days ago
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RE: How much of your renewable and home setup would still work if the internet went down?
Yes I actually have a copy of a tool that whenever a ce...
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RE: Indevolt Batteries UK Support & Info Thread
@editor Hi, To resolve this, please tap on the A...
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