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Last seen: Oct 29, 2026
Why do you want to maintain a specific deltaT? The output of the emitter (which is what you really care about, because it needs to balance the heat l...
I dont think it is correct, given that @ashp-bobba described how the defrost cycle of an A2A het pump works just a few weeks ago.
I didn't know about those, they look like good pieces of kit. They are about £30 eachplus VAT It would be pretty mean IMHO of an installer not to d...
My first question is why bother with the auto balancing valves, what value are they adding (other than to confuse matters). Why not just normal manu...
The answer to that is at the whim of global despots (and others).
I think the best advice is - if you want a heat pump get a heat pump. Even though the underlying technology is over 100 years old, its application to...
Thats a fair comment when no tap is open. There will however be a dynamic loss once a tap is open, which I think is the sum of the loss in the pipe w...
OK fair enough, just asking. Its possible to do pressure loss/flow rate calculations if you know the pipe length and roughly the number of bends see...
Whats your mains pressure like, what sort of flow do you get at the cold water tap furthest from the incomer. If you have good mains pressure and/or ...
@sttpd1917 Whats your current gas annual usage, does your house cool a lot at times or stay reasonably warm, do you have half hourly meter readings...
Energy prices are in large part geo political. If you are able to predict geo-politics out until 2030 (or, frankly, beyond the next month) then you ...
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Degrees of Separation
Latest Posts
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
That is not the case. The heating curve adjustment set...
By JamesPa , 18 hours ago
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RE: Free app: run the immersion / heat pump from Growatt battery & solar surplus – no Home Assistant
Please bear in mind, everyone, that in order to use thi...
By Majordennisbloodnok , 22 hours ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis Thanks for posting this and Im so pleased you ...
By JamesPa , 23 hours ago
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RE: I need help with Ecodan ASHP
@f1p It turns out there have been a solar panel install...
By Andris , 1 day ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews your installer would be right to say that the...
By GrahamF , 1 day 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 , 2 days 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 , 2 days ago
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RE: Aerotherm and weather compensation
These are likely inked. The basic explanation is tha...
By JamesPa , 2 days 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 , 2 days ago
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Good to hear that you found a solution. Absolutely a...
By Batpred , 2 days 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 , 3 days 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 , 4 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 , 6 days ago
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