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: Jan 7, 2026
Shouldn’t your temp sensor be in the middle or lowest sensor pocket? Otherwise you’re not actually heating up much volume of water before the DHW temp...
@iaack The system isnt running long enough for any condensation buildup, also I've got the flow temp set above the current due point temp. I don't thi...
@iaack I've got cooling mode on the radiator selected, and I've disabled the valve mode on it, so they are open all the time.
I had an issue like this last year, when my COP halved overnight, it turns out I'd unintentionally turned on the electric immersion heater for all ho...
So I made the switch of pumps and took out the LLH (also added a magfilter) the pump I put in is a ump3 flex 15-70 130, got it all wired up and the sy...
@bontwoody I don’t have the PMW control pump just the Auto with the ability to adjust the flow rate on the pump. Changing it to an PMW pump is on the ...
@johnmo I had considered leaving the LLH in, but wouldn’t it be best to by pass the flow and leave the return connected to it for catching debris from...
@heacol Thanks for the info. I've currently hot 48 litres in my radiators, so a bit below 50 but the documentation for Samsung 8kw says 30 is the mini...
@johnmo Thanks, I hadn't seen that set up diagram before
- 27 Forums
- 2,758 Topics
- 64.9 K Posts
- 1,369 Online
- 7,162 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Where heat loss surveys seem to go against practical reality
@cathoderay I started to record oil usage per month on ...
By ian33a , 2 hours ago
-
RE: Next steps on my ASHP journey: Radiators and Pipework
@bobflux The hydraulic simulator is very interesting...
By Rob of York , 5 hours ago
-
RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 10 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



