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Last seen: Jun 13, 2026
I haven't and it is definitely not as loud as being reported here. The Cosy 12 is not starting from a whisper baseline though. I haven't reported an...
@toodles I believe that is the case. At warmer temps, say >4c, it's quiet, and it's definitely not as noisy as reported here for the Cosy 12. I d...
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...
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Latest Posts
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RE: Harvest Thermal - ASHP with a smart thermal battery
As its using ToU tarrifs then its totally believable so...
By JamesPa , 1 hour ago
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Why do you want to maintain a specific deltaT? The out...
By JamesPa , 1 hour ago
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RE: Heat pump installation quotations
@batpred Excellent, thank you very much!
By sttpd1917 , 2 hours ago
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Hopefully this will answer your question. To...
By ASHP-BOBBA , 2 hours ago
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RE: Help me keep the faith with my air source heat pump installation
I would be interested to find out if others do this and...
By ASHP-BOBBA , 2 hours ago
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Don't you dare. You just carry on as you are; as @batpr...
By Majordennisbloodnok , 4 hours ago
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RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump
@ragtime27 some rooms in our house only have one place ...
By Judith , 4 hours ago
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@mkz, that's very helpful. Even if Urban Plumber are no...
By Majordennisbloodnok , 7 hours ago
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RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
By Batpred , 8 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 8 hours ago
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RE: GivEnergy inverter tripping due to over-voltage?
@transparent the inverter was installed in 2021 and afa...
By Tim441 , 9 hours ago
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RE: Say hello and introduce yourself
I hope so, @toodles. It's not often that we see a situa...
By Majordennisbloodnok , 12 hours ago
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RE: Electricity price predictions
Good point, I do expect the bonus of putting my energy ...
By Batpred , 1 day ago
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RE: Daikin ESPAltherma and Home Assistant installation
@bash, something we haven't touched on already relates ...
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