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Last seen: Nov 2, 2026
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...
Possibly, but it would also reduce DeltaT across the emitters which means that mixing matters less. With a small buffer tank (such as 50l commonly fi...
@fleurcules Welcome to the forum and hopefully we can help. Im not a Grant expert but will try to offer general advice, but first a couple...
Sorry, but I cant see what the point of this is unless its to take the mick from a serious topic (and possibly also of science). Its not even funny b...
TRV heads do indeed close completely once room temp is reached (or thereabouts), by depressing the pin on the valve fully. However there is a degree ...
Yes. In addition or instead. The point us that trv bodies with decorations caps offer an alternative (or additional) and more linear adjustment mec...
Yes. In addition or instead. The point us that trv bodies with decorations caps offer an alternative (or additional) and more linear adjustment mec...
Provided it's sufficient I can't think of any reason in physics why system pressure would affect cop
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Degrees of Separation
Latest Posts
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RE: Octopussy cosy 6 experience
@paultheheating Unless things have changed more recentl...
By Toodles , 2 hours ago
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RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Sorry I thought and meant to put 'may' in, but the diff...
By JamesPa , 4 hours ago
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The alternative would be to move some productive energy...
By EtchedPixels , 5 hours ago
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RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
By davidnolan22 , 6 hours ago
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RE: Adding data centre electricity costs to domestic energy bills?
Potentially the largest data centre hub in Europe and t...
By Jeff , 10 hours ago
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RE: Aerotherm and weather compensation
The principal cause of inefficiency if a heat pump is n...
By JamesPa , 23 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
Very nice. we’ve been super soggy here, but rather m...
By Papahuhu , 23 hours ago
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RE: DIY powerflushing tutorial
Interesting! I toyed with the idea too. But I installed...
By bobflux , 1 day ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews Agree with the others on sequence: loft first...
By mk1234 , 1 day ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@etchedpixels Agreed, just a thought for others. I am...
By Watcher , 2 days ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
Heating been on for 4 weeks now, continuous. It's 6C o...
By trebor12345 , 3 days ago
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Coming back on subject... A shortened version of the ...
By Transparent , 3 days ago
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RE: Say hello and introduce yourself
Perhaps it is time for an update on ‘our’ project. We h...
By Toodles , 3 days 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 , 5 days ago
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