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: Jul 22, 2026
@jamespa haha very true, although the engineer yesterday said that condensation would occur at 30C flow temp somehow 😂
@andrewj I personally don't like domestic fan coils, people never clean the indoor units with cassettes let alone coils
Firmware updates have massively helped with my cosy vibration/noise it seems to not run the fan that fast anymore. So very pleased 👍 Octopus...
I am seeing a cop of 5.44 at 33C flow at 11C outside on my cosy 9. The latest round of updates and hush mode have really settled it in far more than p...
Octopus emailed though a new cosy guide that has way more info that might satisfy people here. It says hush mode caps compressor and fan at 60% so t...
@andrewj I have no heating load right now so haven't actually run it in hush mode that long. Loads of other makes have a selectable silent / quie...
I've had a few hours with hush mode now, seems to have helped my noise issue considerably. The fan control seems smarter, compressor noise is also dif...
Hush mode now released. I've not tried it yet. Should be good!
I would imagine they will make a carve out in G98/99 especially for these devices. Maybe a Belgium style "mini ECIR" to check you at least have dec...
@harrisonc mine is an early 9. I've seen it under report, but it's about 8% over on SPF. Which is very good for onboard monitoring really.
@harrisonc it measures electric exactly and heat within 8% of my MID meter so that's pretty damn good. It's not HA
It ramps differently now and then doesn't ramp as hard afterwards, there is also much deeper modulation of the heat output. So basically it gets into ...
- 26 Forums
- 2,725 Topics
- 63.8 K Posts
- 1,379 Online
- 7,126 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Jokes and fun posts about heat pumps and renewables
@transparent I’ve heard that that is why American cars ...
By Toodles , 1 hour ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Have either quote provided room by room heat loss calcu...
By Old_Scientist , 15 hours ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@old_scientist if you are going DIY then you may wan...
By Papahuhu , 2 days ago
-
RE: Indevolt Batteries UK Support & Info Thread
After a short while that was followed by the 'power war...
By JamesPa , 2 days ago
-
RE: Samsung heat pump - data cable issue
That's well done. Cable is the correct type (LIYCY = 2x...
By bobflux , 2 days ago
-
RE: Electricity price predictions
I agree, we will find out at the next budget whether th...
By Old_Scientist , 3 days ago
-
RE: Missing flow temperature in Heat Geek proposal
@editor I went through HG website, so should be ok for ...
By sttpd1917 , 3 days ago
-
Who did the Freedom Heat Pump cloud server and what did...
By Mars , 3 days ago
-
RE: Who's your electricity provider and what's your tariff?
Reading between the lines of what octopus are doing wit...
By JamesPa , 3 days ago
-
RE: Air to air bus grant installer anywhere
The through wall two hole ones have their place (listed...
By EtchedPixels , 3 days ago
-
I hope it goes ok, Hon can be hard to set up IF the sof...
By Graham Hendra , 3 days ago
-
@clockworks Hi, So there is a big difference between st...
By ASHP-BOBBA , 3 days ago
-
@editor wellvery comprehensive answer. I will get all i...
By Keithb , 3 days ago
-
RE: Advice on my Heat Pump Journey: Old Stone Built Detached Cottage
all good advice I will follow this up
By PaulC , 3 days ago
-
Heat of vaporization of water is 2.25 MJ/kg (0.625 kWh/...
By bobflux , 4 days ago



