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Last seen: Sep 17, 2026
Fascinating. If I was asked to guess before you presented the data, I would have guessed that there might be a separation at higher OATs (where water...
Thats very plausible and would also account for low COP. Repressurising the refrigerant may fix temporarily (and prove its the problem), but the ques...
Thats a sensible figure. I dont know temps in October in Romania but you said 12-17. 950kWh consumption is way too much indicating I am guessing a f...
Do you mean switching parts of the circuit in and out. If so that is potentially a problem, but not the most important one to focus on just now. &n...
Welcome to the forums and I am sure you will receive much help We will need more data to diagnose but here are some questions/comments ...
Apart from relative immaturity and slightly larger per unit power stored, what are the issues which lead you to say this?
HG are estimating a lower loss overallwhich might explain it if existing rads are only just undersized with BGs estimates. That said more rad upgrad...
@amin I dont think materially relative to this (I assume 'nominal' means the output at which they measure all the other various parameters...
Unfortunately you will almost certainly need to go a layer deeper and look at the detailed specs (which are not always easy to find) to work out what ...
You are absolutely right. I think another common factor may be whether the battery is installed at the same time as solar or is an add on to existi...
I think that's the essence of my problem. I bought into solar in 2011 so the battery (with an additional inverter) needs a standalone business case (...
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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 , 12 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 16 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 , 16 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 18 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 , 19 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 , 19 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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