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Last seen: Apr 28, 2026
@agentgeorge They redid the survey and determined the heat loss was 1kW less than original. This also then identified that most of the radiators were...
@swwils I tried that, but couldn’t get the flow temp down low enough to stop overheating.
If the hardware limits what can be done then I don't see what an advanced controls mode could actually do. Currently, it is possible to run as "alway...
Mostly my thoughts although I'm on the fence whether I regret it or not. My other quote was £12k more from Heat Geek so in some respects it's a no-br...
I wonder if there’s been a firmware update recently. It’s 3c outside and the Cosy is quiet which is unusual. It would have been noticeable at this ...
I haven’t tried that but may do so. I (my wife) wouldn’t want it below 21c when we go to bed so that’s my target. Last night, I managed 21.8c so I s...
No idea, the valve is fine, I had it set at 3 and the room is 22.8c typically. 3 should be 20c but….what can I say?? @swwils I guess I don’t care a...
@kevh yes, both ends actually. They have been pretty emphatic about not dropping the Cosy 9 below 36c and I’ve been told by one techie that it can’t ...
No it doesn't: as I commented on the Cosy 9 thread, the flow temps on the Cosy systems can't be lowered enough to deal with oversized radiators and "a...
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...
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