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Last seen: Sep 17, 2026
@davidalgarve Fwiw my house is more stable with pure WC than it is with any room influence , with the exception of the extreme ends of the season wh...
I agree with@jancood and incidentally it is unlikely to be anything to do with the ashp so unlikely an ashp specialist can help any more than any othe...
Noted. Its a pity you didnt capture the flow rate and return temp when it was in fixed FT mode, but you could capture it now or just go for the 95% c...
OK well so far as I can see there are now only three possibilities 1. The heat pump is unable to get up to the set temperature because of a...
Thats getting pretty convincing. Remember also to check that Night Mode isn't in operation.
@andy1618 see the very sage advice from @editor above. I took would bypass the installer initially and/or check the installation manual.
@adamk FWIW I managed unintentionally to 'coax' mine into making more noise than usual . The noise sounds rather like what you are experiencing and a...
Ok please post back once experiment complete. Give it a couple of hours to be sure. Ok looks like you have an llh which makes fault diagnosis mo...
You are in essence right. Adia only works with selected heat pumps and I dont think cosy is one of them. Don't worry, none of this is necessary if ...
I hear what you say but I would still perform the experiment it to be absolutely certain. Some thermostats, which should never be used with heat pump...
The black cylinder in the second photo looks like an llh. Is there a water pump nearby and how many pipes feed it? You can't ignore the fault wheth...
Here are my comments, others may have something to add or even dispute what Im suggesting. 1 - Yes ideally, but it doesnt matter that much so not so...
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Degrees of Separation
Latest Posts
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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 , 10 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 15 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 , 15 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 17 hours 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 , 18 hours ago
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RE: Why are ASHP installs so expensive?
A not unreasonable position and it wouldn’t be mandator...
By AndrewJ , 18 hours 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 , 2 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 , 3 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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