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: May 7, 2026
@editor It's available here -
@agentgeorge I'll give it a go with my Apple Watch later and see what it says. My HP location is down a narrow path, which is why I had to go with a C...
@editor I can't tell much on the sound side outside as I run mine in a different way to most (house set point 30 degrees, overall house temp managed b...
Went down to 0 degrees last night. Still oscillates a bit but not as bad as before.
@swwils are you on Cosy 9, as the Cosy 6 definitely doesn't when it modulates down. Does your Cosy heat output under or over-report?ah should have kno...
@swwils Next thing they need to fix is correctly measuring power. What card are you using for Home Assistant for these out of interest?
@kevh I have to go into the installer mode and check the version number. The new behavior seems to kick in after 5 degrees. You can see below where th...
@agentgeorge I am on Firmware Version 5.4.2 and have seen a change in how the heat pump operates below 5 degrees over the last few days. Runs a lot mo...
@kevh with the Cosy 6 I know it definitely goes to around 30-31 degC, so not surprised if the Cosy 9 is 35 degC.
@andrewj Seeing they deleted both threads with the pictures on the group... maybe wasn't meant to be public yet.
@andrewj Yeh, I am not sure. I assume though it is to allow the heat pump to boost over the normal set temperature in the off-peak periods and then ri...
@andrewj It's in the comments on the PCB post from yesterday. Here is the screenshot. The user is on the Cosy tariff as well, so it might be that it p...
- 27 Forums
- 2,746 Topics
- 64.5 K Posts
- 772 Online
- 7,149 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
Have you considered keeping your FF boiler and suppleme...
By Old_Scientist , 1 hour ago
-
RE: Who's your electricity provider and what's your tariff?
@toodles I invested on Miele a pair of frodge frozor wh...
By AgentGeorge , 3 hours ago
-
RE: Flushing system, cleaning and inhibitor
Flush and fill all complete. Octopus kindly gave us a...
By Old_Scientist , 3 hours ago
-
RE: Wood burner with ASHP - direct air?
For what it's worth I installed a wood burner in this o...
By BlizzardGreen , 4 hours ago
-
@editor Thanks for your response and recommendations. ...
By DavidB , 11 hours ago
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
I think I saw a diagram for an exhaust air dhw tank wit...
By JamesPa , 1 day ago
-
RE: Indevolt Batteries UK Support & Info Thread
Thanks, however that's an answer to a subtly different ...
By JamesPa , 3 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Such elegant symmetry. look at my lumpy bag of...
By Papahuhu , 4 days ago
-
RE: PV and battery long payback - sense check query
Quite probably not, but you can get a 32A relay and a S...
By JamesPa , 4 days ago
-
RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s Look forward to making contact soon! Regards, To...
By Toodles , 4 days ago
-
I don't notice mine defrosting, and most of the time Im...
By JamesPa , 5 days ago
-
RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Kind of you, @calumm, but it was @f1p who did the heavy...
By Majordennisbloodnok , 6 days ago



