Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Last seen: Oct 31, 2026
I would be willing to bet that, with a sensible value for ACH it will work out at 4-8kW, ie not a value that helps us a lot given the uncertainties, a...
Thank you for your response. Assuming that the house has been built to current building regs, and once the insulation defects are fixed, it'm a lit...
Horizontal cylinders are fundamentally less effective than vertical cylinders because, in a vertical cylinder, the water 'stratifies' so that the hot ...
@newby Sorry to hear about your problems Can I just check my understanding. Firstly a question about the situation: Is this 'built for...
Well thats clearly nonsense. If a £280 pump failed in a boiler you would replace the pump, as you would in an ASHP. Sadly that's true of many th...
The fact that when the demand (ie house loss) is less than the minimum that the heat pump can turn down to' the heat pump will cycle on and off so tha...
- 27 Forums
- 2,808 Topics
- 66.3 K Posts
- 3,970 Online
- 7,213 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
There is a distinct risk of overthinking this, modellin...
By JamesPa , 21 minutes ago
-
RE: DIY powerflushing tutorial
Nice contraption- I like this kind of thinking. Last ye...
By Travellingwave , 2 hours ago
-
RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
Heating been on for 4 weeks now, continuous. It's 6C o...
By trebor12345 , 12 hours ago
-
RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
So far there is nothing on the value of the BUS grants ...
By Rob of York , 21 hours ago
-
Coming back on subject... A shortened version of the ...
By Transparent , 23 hours ago
-
RE: Say hello and introduce yourself
Perhaps it is time for an update on ‘our’ project. We h...
By Toodles , 1 day ago
-
RE: Marvel Heating liquidation
The interesting thing about the IBG: when I called them...
By davidnolan22 , 2 days ago
-
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 , 3 days ago
-
RE: The good, the bad and the not that great – my heat pump installation
@burtis Thanks for posting this and Im so pleased you ...
By JamesPa , 3 days ago
-
RE: I need help with Ecodan ASHP
@f1p It turns out there have been a solar panel install...
By Andris , 4 days ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews your installer would be right to say that the...
By GrahamF , 4 days ago
-
RE: Tradespeople on Their Phones: What’s Acceptable When They’re Working in Your Home?
Actually, that's a very important point. I've only ev...
By Majordennisbloodnok , 4 days ago
-
RE: Aerotherm and weather compensation
These are likely inked. The basic explanation is tha...
By JamesPa , 4 days ago
-
RE: Electrical works for air to air heat pump
agree with above. I have not had extra costs added wh...
By Batpred , 4 days ago

