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Last seen: Sep 18, 2026
Indoor air temperature ie room temperature Outdoor air temperature Flow temperature ie temperature of water exiting heat pump. The hea...
@crimson I asked Eskimo about their correction factors and received the pretty convincing argument reproduced below. These would appear to have a ...
There are two definitions of sufficient volume. The first is sufficient for defrost which is the min system volume manufacturers quite, typically aro...
Yes but... all you will get is another exercise in GIGO theory with the same variability as the original. It then becomes the view if one installer v...
Ok so that seems to be the key point namely only mcs can certify installations. Here is an extract from the text of the government response which ap...
Er that isn't quite true or at least not what the legislation says. The legislation specifically calls up conformance to mcs020a as a requirement fo...
That's a helpful reply thanks. You may be able to rule out an undersized heat pump by turning up the LWT when it's coldest. If that fixes it then un...
I agree, but at the same time it's encumbant on homeowners to keep documentation supplied in case of a later claim. I'm not sure it's right to expect...
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Degrees of Separation
Latest Posts
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RE: Why are ASHP installs so expensive?
@rob-of-york I’m firmly with you on this, and it’s a co...
By Mars , 2 hours ago
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RE: Heat Pump deployment statistics: June 2026
To my eyes, sat behind all of this is a basic policy ma...
By Temperature_Gradient , 18 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 22 hours ago
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We’ve just passed 20 million forum views! 🎉
It's official. The Renewable Heating Hub forums have of...
By Mars , 22 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 1 day ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
Have you looked at the Nibe website? They list their ap...
By Lizzie , 1 day ago
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RE: Who's your electricity provider and what's your tariff?
@batpred When the raw material input has increased in c...
By Papahuhu , 2 days ago
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We kept ours and Heat Geek would have been in touch if ...
By Batpred , 3 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s I would encourage you to have a conversation ...
By Rob of York , 3 days ago
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RE: Is it the house or the equipment?
Thanks @jamespa The last hard to fix draughts in the...
By springswood , 3 days ago
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RE: Vaillant Arotherm – Using Heating
@l8again Mine is typically using 11w including the i...
By Batpred , 3 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
If you have a flowmeter and two temperature probes, the...
By bobflux , 4 days ago
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RE: Siting of the external sensor on a heatpump
@jamespa Absolutely. Even if the same mistake was mad...
By Batpred , 4 days ago
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