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: Mar 5, 2025
@jamespa Thanks. I'd already concluded that the higher estimates are excessive, which is why I'm going with the lower of the three figures that I'...
@gary Thanks. House is a similar size to ours. It's interesting that you find even the 8.5kW Ecodan is overpowered. We got three surveys that cam...
@gary Thanks. If you don't mind me asking, what is the size and/or heat loss for your property? Or the usual daily heat output and COP from your Eco...
@ianmk13 I assume you've considered upgrading from K2s to K3s where possible? This should give you at least 30% extra output for the same wall space.
@harriup Thanks again. I've explored quite a lot of data (and plotted many graphs), but only have daily gas consumption figures from late January ...
Five of our 14 radiators are supplied with 10mm plastic microbore, with the rest on 15mm copper. The microbore is all installed behind plasterboard wa...
@gunboatdiplomat Interesting comparisons. It looks like we have very similar properties though ours is probably slightly better insulated as 80% o...
For completeness and for anyone who's interested, here are the design and performance parameters, as described by each supplier. Supplier ...
@mike-h Thanks again. The installer I'm leaning towards (Puraflow) seems to have consistently good reviews on TrustPilot and I've been generally i...
@majordennisbloodnok Thanks. Similar installation cost again. Looks like RHI was a really good deal. The new BUS grant is £7500 (formerly £5000) wh...
@harriup Thanks for the useful insights and for taking the time to reply.Your similar installation cost with the 8.5kW Mitsubishi does at least help t...
Does anyone have any thoughts about question 1 (installation cost)?
- 27 Forums
- 2,758 Topics
- 64.9 K Posts
- 781 Online
- 7,162 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Where heat loss surveys seem to go against practical reality
I am amazed that there is not something out there to me...
By JamesPa , 22 minutes ago
-
RE: Next steps on my ASHP journey: Radiators and Pipework
@bobflux The hydraulic simulator is very interesting...
By Rob of York , 6 hours ago
-
RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 11 hours ago
-
-
RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 1 day ago
-
RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 1 day ago
-
RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 1 day ago
-
RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 1 day ago
-
It’s been out a few days and Amazon has already attache...
By Mars , 1 day ago
-
RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
By Batpred , 1 day ago
-
RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 2 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 3 days ago
-
RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thank you for your reply above. As alway...
By Old_Scientist , 4 days ago
-
RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 6 days ago



