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Last seen: Jul 14, 2026
The Cosy 9 isn't exactly the strong silent type and I also dismissed most noise complaints as just people being picky. When it is cold and it's worki...
@swwils I’m not too worried about things like solar gain as it’s a bit out of anyone’s control. In fact the porch now gets over 21c on sunny days bec...
@agentgeorge they are oversized, except now the porch and downstairs wc which are now about right. According to the radiator schedule the kitchen is ...
@toodles the LSV in the bedroom is only just cracked open and I will see how it goes. For most of the day, the room has been sat at 23.2c, up from 22...
@kevh certainly I would not choose a Cosy again because it doesn't allow a low enough flow temp, doesn't give enough data points to help sort out bala...
I had two radiators upsized in the porch and downstairs wc as these two rooms just never got up to temp, even with the rest of the house overheating. ...
@swwils Unfortunately they give access to very little data through their app and I have no additional sensors. I have noticed real-time draw through ...
@swwils On my Cosy9 when it is working hard, the blown air is noticeable at a height difference of 3m, horizontal distance of 1.5m and through triple ...
There are people complaining about the noise of their Cosys. Not just the blown air noise but some form of low frequency noise that they seem to be s...
@jamespa Thanks - I learn a lot more about heating systems asking simple questions than I ever thought I would need. Seems to come with the ASHP terr...
@jamespa thanks James. That’s an interesting figure: just before Christmas, Octopus visited to do another heat loss survey and determined the origina...
My Cosy 9 is managing to keep pace with the cold weather with downstairs rooms at around 22.0 - 22.3c. Downstairs hall, which is mostly an internal r...
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Latest Posts
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RE: Who's your electricity provider and what's your tariff?
@peterackstraw 13.5 kWh’s of battery capacity is unlike...
By Toodles , 3 minutes ago
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@editor — it was a not very well implemented so far as ...
By cathodeRay , 20 minutes ago
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RE: Microgeneration Certification Scheme (MCS)
@jamespa A cynical view but, I fear that it is a fair ...
By Toodles , 21 minutes ago
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Something sounds odd there; if you have solar power cha...
By Toodles , 25 minutes ago
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RE: Jokes and fun posts about heat pumps and renewables
... except that the legal notice (part of which was rep...
By JamesPa , 1 hour ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Have either quote provided room by room heat loss calcu...
By Old_Scientist , 21 hours ago
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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
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RE: Indevolt Batteries UK Support & Info Thread
After a short while that was followed by the 'power war...
By JamesPa , 2 days ago
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RE: Samsung heat pump - data cable issue
That's well done. Cable is the correct type (LIYCY = 2x...
By bobflux , 3 days ago
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RE: Electricity price predictions
I agree, we will find out at the next budget whether th...
By Old_Scientist , 3 days ago
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RE: Missing flow temperature in Heat Geek proposal
@editor I went through HG website, so should be ok for ...
By sttpd1917 , 3 days ago
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RE: Air to air bus grant installer anywhere
The through wall two hole ones have their place (listed...
By EtchedPixels , 3 days ago
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I hope it goes ok, Hon can be hard to set up IF the sof...
By Graham Hendra , 3 days ago
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@clockworks Hi, So there is a big difference between st...
By ASHP-BOBBA , 3 days ago
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@editor wellvery comprehensive answer. I will get all i...
By Keithb , 3 days ago
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