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 26, 2026
@jamespa We repair or redesign around 1 or 2 a month, we have just started 2 this week, the 2 I mention are brand new nearly finished self builds due ...
@davidnolan22 Oh my, thats a lot of pumps and is certainly wrong. You should change the primaries, remove the buffer and insist on a better design.
@editor I would be gobsmacked if you found a system performing at 1 or less, that would take some messing up. I went on to our systems today just to c...
@editor Good point, I suppose establish that 1st, work out if you have either or both and then go from there?
You need a refractor to know if you need attention to your glycol, if you have ant-freeze valves you will not have glycol.
@editor Oh no, that sound like a disaster, sorry to hear that.
@editor Agreed, I await the details of what went wrong with your retrofit as we work on rebuilds often and they can be tricky.
@grahamf I understand, unfortunately I think the only way to know you are starting with a good company or designer is if they are recommended to you b...
@grahamf I think in the last 3 years and due to heavy social media coverage many manufacturers and designers now design buffers out, in 2019 when I de...
I did notice that if they want to get in they will, they seem to be able to even chew through light steel and plastic casings as well as the gaps roun...
Interesting update, we were audited by Ofgem on Friday afternoon, MCS a while ago and RECC recently as well as a paper exercise by APHC so they are al...
@josephiah Hi, we just completed a Church but using air 2 air ASHP, total capacity 48kW, the reason we used A2A is so they have cooling in the summer ...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Siting of the external sensor on a heatpump
Of course had the heat source been a heat pump it would...
By JamesPa , 2 hours ago
-
Never assume, it makes an ass of u and me! OK, tha...
By JamesPa , 2 hours ago
-
RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
In fairness all heating has cost a lot to run in recent...
By JamesPa , 4 hours ago
-
RE: Is it the house or the equipment?
@springswood We have two Daikin single split A2A syst...
By Rob of York , 5 hours ago
-
RE: Next steps on my ASHP journey: Radiators and Pipework
You should (almost) always reject having a buffer, by w...
By JamesPa , 1 day ago
-
RE: Navigating the World of Refrigerants In Heat Pumps: A Guide for Homeowners
Indeed we are invvestigating AC at present and are havi...
By Toodles , 1 day ago
-
No, but the heat pump must be capable of delivering a S...
By JamesPa , 2 days ago
-
RE: Daikin ESPAltherma and Home Assistant installation
It's laziness lol The PV system is very chatty, meter...
By bobflux , 2 days ago
-
RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
R (The R Project for Statistical Computing, I use it wi...
By cathodeRay , 2 days ago
-
RE: Vaillant Arotherm Plus 7KW need a service on it
booked it with Vaillant. will use them until i can find...
By AdamK , 2 days ago
-
RE: Adventures in heat loss calculations
I have seen it stated that the declared calorific value...
By JamesPa , 2 days ago
-
RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 3 days ago
-
RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 4 days ago
-
@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 4 days ago
SPONSORS
