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 16, 2026
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 ...
@agentgeorge Cosy 9. It's automatic and remote update. Probably only for 9s
Just updating that ocotpus are still in touch with me, the noise is not fully resolved. Trying to coordinate a fan replacement so we can say for sure ...
@temperature_gradient Its not actually hard, the grid is built on physics. Match generation with consumption. Nothing else matters. Bonus ...
Latest Posts
-
RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 11 hours ago
-
RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
@jamespa that’s actually a really interesting observati...
By Mars , 11 hours ago
-
RE: How many people are happy with their ASHP and do you believe them?
Good luck, I spent a couple of hours and, whilst I foun...
By JamesPa , 12 hours ago
-
RE: Heat Pump Operation in Summer - Valliant 7kW
I do the same: cool my large buffer (3000L) to 10C, pum...
By upnorthandpersonal , 20 hours ago
-
@editor "The interesting bit is that many modern invert...
By Singlespeed , 20 hours ago
-
RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
By downfield , 22 hours ago
-
RE: A2A vs A2W: Which Heat Pump Would You Pick?
I reached out to MCS directly last week on this and her...
By Mars , 22 hours ago
-
Mentally you have to separate the ac side and the DC si...
By JamesPa , 2 days ago
-
RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 2 days ago
-
RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@l2jad I was just thinking all things being equal. Our ...
By AndrewJ , 2 days ago
-
Hi, Does anybody have experience with Heat Geek insta...
By sttpd1917 , 3 days ago
-
I will soon be struggling. Admittedly it is the summer,...
By Batpred , 3 days ago
-
RE: Indevolt Batteries UK Support & Info Thread
Not known yet. I've asked a local Councillor to follo...
By Transparent , 4 days ago
-
Hard to tell but I think I have placed the arrow on wha...
By ASHP-BOBBA , 4 days ago
