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: Apr 15, 2026
Hc = 0.5, MAX FLOW = 50c the NR schedule is blank I made sure both were identical settings, I had even tried with turning one off. So the way ...
No idea, maybe a lag in home assistant pulling data Your guess is as good as mine, Could that be a defrost? I think cycling maybe the over 4...
Overnight 42c target. the first curve is my hot water tank run which shows the system is capable of high flow temp.
@cathoderay Regards 4 I do think the numbers are pretty accurate, the kwh reading I can also see in the myvalliant app, my energi and tesla apps and i...
the FT is the measurement coming from the Valiant home assistant plugin, i do find its 0.3 to 0.5 lower than the controller figure but its close. th...
so my NR schedule was empty already, so NR has always been off. My latest concern after we worked out how to get the target flow temperature correct...
Depends on the outside temp, i'd say in the coldest of outside temperatures close to 2c other times 1c I just checked on my controller and the NR i ...
[/quote] Can you clarify why the heat pump seems to go off altogether for several hours each day. [/quote] That is because I run in expanded mod...
@jamespa thank you so much you have shed some more light. Yes noise reduction is on, I remember doing this many months back on the suggestion that i...
So here my running for the past few colder days, its running at around 3-3.5kw thats huge were it to be on 24*7 Note: the big flow temp high is hot ...
As the cold has come in now, I will send over some similiar graphs i get out of home assistant to get some opinons.
what is your heating curve set to? We have 9.9kw loss at -2 per design.
- 27 Forums
- 2,758 Topics
- 64.9 K Posts
- 1,880 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 , 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



