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 10, 2026
@jamespa So settings to date are as follows for now. - **2011:** -10°C- **2012:** 15°C- **2021:** 40°C- **2022:** 25°C I have put 2022 to 38c Wi...
At long last , I found a decent plumber and boiler expert locally to take the buffer out of the system(his advice) and change the piping the short dis...
OK , Thanks James, can the btu's be calculated from the existing Radiator as it was measured to size for that room initially. By the way I have a pl...
I have messaged you . Thank you in anticipation of your help .
The old problem we had certainly was not right , but while it was using TRV's and open lockshieldsand the buffer, the costs were more controlled but s...
Ok Guys James, I cannot get anyone to respond to a request locally to come and have a look at converting a buffer tank to a Volumizer therefore elim...
Sorry random input , must of thought I was on another thread!!
No I don’t know what volume, I might look at the sheets again. Is it normal to have it recorded somewhere? It maybe somewhere as the system has had gl...
@ubert767 Thanks , no wonder I get too much of a temp drop , mine is 200L , too much mixing .
@ubert767 the removal of the 20ltr. 4 port buffer out of interest,is that 20l or 200l ? I am planning bypassing my buffer , still waiting for ...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Thank you. We are at 300m2 and mid 70s vintage,...
By Papahuhu , 7 minutes ago
-
RE: Next steps on my ASHP journey: Radiators and Pipework
Post by: @old_scientist The first thing I would say ...
By Rob of York , 2 hours ago
-
RE: 7kW EV Charger Options Advice
Agreed. Fitting structured cabling would be a good idea...
By Majordennisbloodnok , 3 hours ago
-
RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
OK. If you had two different flow temps and were going ...
By bobflux , 7 hours ago
-
RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thank you for your reply above. As alway...
By Old_Scientist , 8 hours ago
-
RE: How Accurate Is My DIY Heat Loss Calculation?
@kilgorexv definitely a larger inverter will help and m...
By AndrewJ , 2 days ago
-
RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 2 days ago
-
RE: Surface mount or bury primaries for heat pump installation?
The installation is almost done! I've written up two ...
By tomasmcguinness , 2 days ago
-
RE: Glass lined Cylinder for private water supply
This has turned into a fascinating little rabbit hole. ...
By Mars , 3 days ago
-
RE: Switch suitable to change between two inverter CT's
Last winter my battery ,32KWh, could run the house com...
By Jancold , 3 days ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Agree with Major. And even if I was very happy with ...
By Batpred , 3 days ago
-
RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
By Rob of York , 3 days ago
-
RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 5 days ago
-
RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 6 days ago
SPONSORS
