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Last seen: Sep 17, 2026
This topic will run and run for sure The misunderstanding many suffer from (and the controls industry almost actively encourage this misunderstandin...
Only the manual The commissioning documents state which inverter model it is.
Your installer is probably right. The L9 error means low flow, and if the zones aren't open this will be the reason. You cant fix the error without ...
Im sure there are plenty of gags to be had linking MCS and rodents of various types!
Thanks everyone, this is going to take some analysis so it might take a while before I respond fully. Of course any further inputs are appreciated! ...
There is room outside but only the other side of the house to the garage. The CU is in the garage so it would require a long run of cable to connect ...
Thanks. The concept of daisy chaining the inverters is attractive in principle as there is no ambiguity what's happening! It also makes for a simple...
Thanks. The concept of daisy chaining the inverters is attractive in principle as there is no ambiguity what's happening!
I agree. I have been advising another user with a Hitachi heat pump and that does have the ability to program more complex wc curves. Given how the...
Thats quite plausible particularly with radiators. Radiator output is not a linear function of surface temperature unfortunately, its (usually) pro...
My consumption figures, for a house in the South East that has a measured loss of 7kW at -2, are here My SCOP is roughly 4, but of course in...
Its not really a downside of ASHPs, its a downside of using weather compensation. Boilers with WC have exactly the same limitation. Other than t...
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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 , 9 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 13 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 , 13 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 16 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 , 17 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 , 17 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 , 3 days ago
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