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 16, 2026
Thanks for such a comprehensive response!!! The system uses R290 The max it can heat dhw is 50, anything more than that the installer h...
Hi, FYI an update of sorts. So I agree the system doesn't appear to work as a hot water cylinder but instead contains hot water and water is passe...
Hi After several weeks of pestering, an engineer turned up today to look to fix the issue. The suggestion is that the intake for cold water was pu...
House was finished several years ago, complicated a bit because home build was impacted by covid. Still waiting for reply from them on what the DHW...
Hi, No, we're currently in a situation where there isn't a confirmation that there is actually a problem. I've asked the installer to explain exa...
Hi, Nothing yet. I've asked customer to measure flow and asked Heliotherm to explain exactly what that other cylinder does because it suggests inst...
@jamespa Attached are a few photos I took from today. I also have a video if that might help. Mike
Hi, Yes it's a big new house 2022, grand design ish. Probably almost passivhaus standard, EPC A 99.. So there's a circulation pump as well going on...
Hi, The left is the buffer tank, the right is DHW. It's right is one of these It says it's fresh pure hot water on demand. So I don't don't unders...
Hi Attached is picture of the tanks. It's a heliotherm. I've spoken with the installer and they mentioned flow rates on showers as well. Mik...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Next steps on my ASHP journey: Radiators and Pipework
I have one of these fitted which also allows you to reg...
By Old_Scientist , 4 seconds ago
-
RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
If they can't don't give up. Heat pumps are, in reali...
By JamesPa , 1 day ago
-
RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s I wouldn't be too concerned about the design ...
By Rob of York , 1 day ago
-
RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
By JamesPa , 1 day ago
-
RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 1 day ago
-
RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
By Aventus Eco , 1 day ago
-
RE: Why are ASHP installs so expensive?
Posted by: @batpred There´s another aspect that coul...
By Rob of York , 1 day ago
-
RE: Say hello and introduce yourself
@gz00, welcome to the forums. There’s a huge amount of ...
By Mars , 2 days ago
-
RE: Home energy storage & battery register
1 fox ess lv5200 batteries, plus 2 more waiting to be i...
By Jimcub , 2 days ago
-
RE: Heat Pump deployment statistics: June 2026
@l8again Unfortunately the government is, I suspect,...
By JamesPa , 2 days ago
-
My feed of random industrial auctions turned up this au...
By Prunus , 2 days ago
-
Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 3 days ago
-
We’ve just passed 20 million forum views! 🎉
It's official. The Renewable Heating Hub forums have of...
By Mars , 3 days ago
-
RE: Who's your electricity provider and what's your tariff?
@batpred When the raw material input has increased in c...
By Papahuhu , 5 days ago
SPONSORS
