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 25, 2026
@toodles , yes you’re right, there are a lot of variables and all of the figures can be plus or minus. I guess both of your heat loss figures would ha...
@jamespa Again, I’m going to have to read this carefully to take it on board. But I absolutely agree about the piping and the radiators. As I said in ...
@jamespa I think I have explained what I have observed. The heat pump hits the target LWT first, then it hits the RWT and finally it hits the flow rat...
@jamespa , I’m having to think about this very carefully, so I need to tackle it in chunks. So this one first. I’m assuming there is a steady state un...
Also, if Octopus installed yours, and assuming you are an octopus energy customer, you can get the very affordable maintenance package they are offeri...
@toodles , Thanks and the 6.5kw is based on achieving what 24c from -2c , for example?
@toodles Thanks. That shows pretty much the same picture, with the heat pump going off and on, but maintaining a pretty steady temperature. What is yo...
@jamespa . James the spreadsheet may explain what I think is happening. I have this as an outstanding query with Daikin, but I haven’t had any respons...
@toodles well that’s a very respectable cop. Does it get its info from the MMI.
@toodles , Hi, that’s a very interesting chart. So your ( very high) temperature is consistent within a relatively narrow band. Your flow rate is all ...
@jamespa interesting. Yes I am, and I have been since 22nd October only using weather comp. The 16th Jan was when BG made the changes to remove the hi...
I forget to address this, because I think this is critical. The Daikin can increase its flow rate, but it needs to be called on to do so to meet somet...
- 27 Forums
- 2,806 Topics
- 66.3 K Posts
- 2,404 Online
- 7,211 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
That is not the case. The heating curve adjustment set...
By JamesPa , 14 hours ago
-
RE: Free app: run the immersion / heat pump from Growatt battery & solar surplus – no Home Assistant
Please bear in mind, everyone, that in order to use thi...
By Majordennisbloodnok , 18 hours ago
-
RE: The good, the bad and the not that great – my heat pump installation
@burtis Thanks for posting this and Im so pleased you ...
By JamesPa , 20 hours ago
-
RE: I need help with Ecodan ASHP
@f1p It turns out there have been a solar panel install...
By Andris , 1 day ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews your installer would be right to say that the...
By GrahamF , 1 day ago
-
RE: Tradespeople on Their Phones: What’s Acceptable When They’re Working in Your Home?
Actually, that's a very important point. I've only ev...
By Majordennisbloodnok , 2 days ago
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders can I just add to @rob-of-york s comm...
By JamesPa , 2 days ago
-
RE: Aerotherm and weather compensation
These are likely inked. The basic explanation is tha...
By JamesPa , 2 days ago
-
RE: Electrical works for air to air heat pump
agree with above. I have not had extra costs added wh...
By Batpred , 2 days ago
-
Good to hear that you found a solution. Absolutely a...
By Batpred , 2 days ago
-
RE: Are there any comparisons of DHW heat stores around?
@sarahemmm I have done things the opposite way round I ...
By Toodles , 2 days ago
-
RE: How will removing the standing charge on gas bills benefit heat pumps?
The BUS grant funding for 2026/27 will run out at the c...
By Rob of York , 4 days ago
-
-
RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
By Mars , 5 days ago


