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: Oct 17, 2026
My gas consumption was 18-20MW/yr. It was 10% higher before I turned down the flow temp to 50 (from 75 which is where the maintainer left it) and sta...
That's a curious conclusion with which I am struggling, not least because I have a fairly comparable situation which doesn't seem to create a conflict...
I don't have much concrete evidence but The only way to explain the discrepancy between my calculated and actual heat loss is to assume ach =0.5 i...
In addition to the above oversizing means you are likely to be running the compressor at an inefficient point on it's modulation curve for much of the...
I don't disagree for a minute with some of the sentiments about gas prices vs electricity etc but, to add some balance to the argument: My heat pump...
If your statement were 'WC doesn't work in your house' then it might be true. As it stands, apparently intended to be generally and widely applicable...
Very well said. When people complain about 'the council's or 'the government' I've taken to asking them 'so what would you do instead then?'. Mostl...
I find it faintly amusing that nobody ever worries about a heat pump cycling more or less continuously when it's their fridge, but gets extremely conc...
You are right that the lag from when the heating controller responds to when the house responds is of course the same whether the controller responds ...
This is how I would set it up Firstly a WC curve tuned to house. Start at 20 Deg outside and min flow temp of heat pump 20 or 25. End point at your...
That's fair enough, I did say that there are exceptions (I think the only significant ones may be wind and solar gain) and there is no perfect solutio...
Because of the lag in response. Simple as that. Look to control theory to explain why this is a problem. If your house has the thermal characterist...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Renewables & Heat Pumps in the News
Years ago I worked for a company who won a best in show...
By EtchedPixels , 5 hours ago
-
RE: Octopus Cosy Heat Pump Owners & Discussion Thread
Has anyone here had a Cosy 12 installed yet?
By Mars , 7 hours ago
-
RE: How quickly would you want/expect heat recovery to take from setback?
But looking at your graphs, why are your LWT and RWT cy...
By Temperature_Gradient , 7 hours ago
-
RE: How should the Boiler Upgrade Scheme be reformed?
Not quite, regular A2W heat-pumps need a load of extra ...
By Temperature_Gradient , 1 day ago
-
RE: Heat Geek installations: share your experiences
one thing i learnt from reading people’s comments and e...
By Batpred , 1 day ago
-
RE: Cooling/heating with one unit
"The way we use A2A on a cheap overnight EV tariff is t...
By mrkfm , 1 day ago
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
We have ‘signed on the dotted line’ today for a Panason...
By Toodles , 1 day ago
-
RE: Heat pump branding. Clever, contemporary… or a bit too much?
...or it was there and was lost thanks to laziness and ...
By Majordennisbloodnok , 1 day ago
-
@bobflux Thank you for your response. I am trying to ...
By RonV. , 1 day ago
-
This post is about how I successfully configured a buff...
By Tony.Stolz , 2 days ago
-
The installer visited yesterday and suggested the noise...
By JamesChatz , 2 days ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Your house sounds a lot like mine. 2 surveyors each sp...
By JamesPa , 2 days ago
-
RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
Thats true only if you do the wrong experiment. Done c...
By JamesPa , 2 days ago
-
RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 2 days ago
SPONSORS
