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: Aug 9, 2026
Sorry Im not. I should also be upfront in saying that Im not a heat pump professional and so restrict my activities to giving well meaning advice to ...
Thanks. I know and can see that the tie from earth to neutral is at the local substation transformer. However its not this that matters for safe...
OK the thing to understand about setting thermostats and TRVs (much) higher is that you are actually trying to disable them altogether. You then need...
@fiona @johnbroome I'm sorry to hear this. Can I just ask if you have done the key things which are necessary to get a heat pump working both che...
For me this sums up what I have learned in my 3 year journey so far. Of course 'caveat emptor' is universally true - if there is an opportunity to sc...
In a word yes. Measurements based on a single day should be treated with extreme caution, houses take a long time to react. However as a ...
Newbuild 200sq m house, 16kW? Somebody is having a laugh at your considerable expense. Either the construction standard is appalling or the loss is ...
I would describe this as either a fault or a configuration error. If the ft isn't changing with oat then wc isn't working, your heat pump won't be ef...
@johnbroome As I say I think you probably have a fault which needs fixing. However there may also be an opportunity to tweak how it's run. The un...
Interesting. Judging by my house which is different is several ways (some better, some worse) I would have guessed ~7kW as the actual loss, however y...
OK, I see from your other post that this is quite an old installation and things have recently changed which suggests a fault. I believe @editor is l...
So far as i can see no because its NOT connected to the neutral, its connected to the metallic sheath of the distributor’s service cable into the prem...
- 27 Forums
- 2,741 Topics
- 64.3 K Posts
- 888 Online
- 7,144 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Electricity price predictions
@old_scientist There is a degree of nuance to the ca...
By Papahuhu , 57 minutes ago
-
Further, there was a long discussion of the benefits of...
By Old_Scientist , 2 hours ago
-
I appreciate that EnergyPlus is Valliant's first attemp...
By L8Again , 2 hours ago
-
RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Unfortunately the answer is Yes you will need a new FTC...
By F1p , 16 hours ago
-
RE: PV and battery long payback - sense check query
So if it helps I was recently quoted about 8 grand for ...
By EtchedPixels , 17 hours ago
-
RE: HomeTherma Is Live: A New Home-Energy Platform Built Around the Homeowner
Signed up!
By bobflux , 1 day ago
-
RE: Indevolt Batteries UK Support & Info Thread
I had a quick look and they are a little vague. They ...
By BlizzardGreen , 2 days ago
-
RE: Has anyone seen this problem before? Huge anticycling times
Oh dear. Glad it was replaced. I have been mighty imp...
By JamesPa , 2 days ago
-
RE: Can I start an argument about buffer tanks please? 🙂
Dont, just adjust the LSVs to get different temperature...
By JamesPa , 3 days ago
-
RE: Heat pump running costs – what has actually worked for you?
I installed the air source heat pump in January 2026, i...
By bobflux , 3 days ago
-
RE: Grant Aerona Air to Water R290 6.5 kW - Quiet Mark and Silent Running
Thats all interesting. DHW on my Vailant seems to respe...
By JamesPa , 3 days ago


