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 5, 2026
@rod yeah thats top class man, if you read back here, im having issues getting my flow temps much lower due to cycling/heat demand but i hope when wea...
Checked my cop for yesterday, was pleasantly surprised at 5.05. Way above last winter, wasn't coldest day yesterday but things def seem to have improv...
@jamespa yeah man, house warm which is main thing, again quite mild today so sooner colder weather here the better haha. Its just something i haven't ...
@derek-m Essentially its the delta t causing my pump cycling, so i need to alter curve so rwt isnt getting so close to lwt. That indicates to me that ...
@derek-m Looks like i have gone too low so with the wc curve @32-5 and 25@20 so. Seems to keep house warm at that curve though just have introduced cy...
@derek-m hmm, was hoping for an easy solution, cant say i have had this issue running at higher lwt or at least i dont know i had. House is warm and i...
Just an addendum, leaving for the night shift an hour ago, lwt was at 27 and rwt 24.1, flowing approx half of capability then shut off again. Essentia...
@jamespa mine is daikin altherma low temp split, its all enclosed, no external pump, but prob has to have internal modualting ump i suppose. So if d...
@derek-m Thanks, was calculating it as average between cold and warm end and was getting near that@30 but wasn't sure if that was correct. Luckily i t...
@jamespa Oh, so ill just lower cold end again so as i think house is warming up too quick and im having to stop the pump.
Have desired temperature on front screen but think that changes with the curve.
@jamespa No DHW cycle is 2-3pm, this was much later. Judging on my curve, @7.2deg, what should flow temp be? Maybe its ok. Using lot less KWH last few...
- 27 Forums
- 2,793 Topics
- 66 K Posts
- 1,026 Online
- 7,196 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Cooling/heating with one unit
"The way we use A2A on a cheap overnight EV tariff is t...
By mrkfm , 19 minutes 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 , 55 minutes 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 hour ago
-
@bobflux Thank you for your response. I am trying to ...
By RonV. , 1 hour ago
-
This post is about how I successfully configured a buff...
By Tony.Stolz , 5 hours ago
-
The installer visited yesterday and suggested the noise...
By JamesChatz , 6 hours ago
-
RE: Heat Geek installations: share your experiences
I struggled with this problem as well. An independent t...
By L8Again , 7 hours ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Your house sounds a lot like mine. 2 surveyors each sp...
By JamesPa , 9 hours 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 , 9 hours ago
-
RE: How should the Boiler Upgrade Scheme be reformed?
@temperature_gradient Isn't that just describing a regu...
By Prunus , 10 hours ago
-
RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 22 hours ago
-
RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 23 hours ago
-
RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 24 hours ago
-
RE: Missing flow temperature in Heat Geek proposal
Good plan. If you can get half hourly meter readings a...
By JamesPa , 1 day ago



