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Last seen: Sep 17, 2026
Noted and dilemma understood. A volumiser may not be needed but it wont do any harm if its plumbed correctly. As it is, its a 2 port buffer and may ...
The sad fact is that you have to check everything some installers and maintainers do, or alternatively hover over them whilst they do their work. In...
@razz You should perhaps take a look at and interrogate this A Cosy owner who has solved excess noise problems with some very simple DiY case mods.
You are lucky they have used 0.5, many surveys use 2-3. With a very low loss home air changes (unless you have MVHR) are going to dominate, they are ...
Welcome to the forum and please feel free to ask any question you wish. Here is my starter for 10 focussing on the ASHP 12kW s...
Since you ask what others think, I think he is very probably talking rubbish and doesn't understand how ASHPs, or indeed weather compensation, works. ...
In the diagram the volumiser is shown as being between flow and return thus acting as a short circuit for the water flow. This is wrong, it should ei...
This is done through the survey. Basically they measure each room, check the construction, and from that you can calculate the loss. You then check ...
Im sure you dont need me to tell you not to let him off the hook until WC is working without him playing in the background!
The main thing with flow is that it must be sufficient, which is basically dependent on the original plumbing and the state of the filters. Cleaning ...
sorry but thats just nonsense. A volumiser can go in flow or return. Flow is arguably better but return is nearly as good and in either case it func...
I know, the sad thing is that big corporations win, small boys lose.
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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 , 7 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 11 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 , 11 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 13 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 , 15 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 , 15 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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