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Last seen: May 24, 2026
@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...
I haven't made any changes over the christmas period and waiting on Octopus to get back to work. I do want to try the decorators' cap approach though...
The FT levels off at either the set point OR the minimum flow temp it can reach, so once the FT is 35c for the Cosy 9, it levels off irrespective of t...
@kevh It's something I'm trialling at the moment - I've set the Cold Weather Max Flow temp to 50c at -10c and left the Warm Weather Flow Temp at 36c. ...
@harrisonc wow. That’s going to get the rumour mill grinding!
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RE: Anyone concerned about GivEnergy?
So it seems subscription day has finally arrived for Gi...
By TechnoGeek , 1 hour ago
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RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
No, I agree entirely. There shouldn't be a need for an ...
By Majordennisbloodnok , 3 hours ago
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RE: How many people are happy with their ASHP and do you believe them?
I agree, and not. Energy prices are a largely politica...
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RE: Solar Produced vs Home Consumed
All inverters will use solar power in preference to dra...
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Yes, you will need to notify them even if the inverter ...
By Old_Scientist , 4 hours ago
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RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 16 hours ago
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RE: Heat Pump Operation in Summer - Valliant 7kW
I do the same: cool my large buffer (3000L) to 10C, pum...
By upnorthandpersonal , 1 day ago
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@editor "The interesting bit is that many modern invert...
By Singlespeed , 1 day ago
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RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
I reached out to MCS directly last week on this and her...
By Mars , 1 day ago
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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
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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
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Hi, Does anybody have experience with Heat Geek insta...
By sttpd1917 , 3 days ago
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I will soon be struggling. Admittedly it is the summer,...
By Batpred , 3 days ago



