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Last seen: May 17, 2026
@andrewj I couldn't imagine living in my house at the temperature your seeing, mines set at 20.5C for a comfortable environment downstairs and 19C ups...
@swwils good results supporting running heat pumps at lowest FT that will keep the home warm and not overheat it @andrewj are you able to adjust you...
Has anyone seen a graph of efficiency vs Flow Temp. Trying to achieve FT of 45C when it’s-12C outside sounds like a step to far. with my setup, ive no...
@kevh they certainly have updated the App to allow 45C, you can see the screen grab I di a few days ago shows 50C as the lowest. I’ve changed mine t...
This has been on the App front screen for a few weeks, so being bored 🙂 decided to click the link and read all about how your Cosy should've been se...
@kevh you cant change the 50C on a Cosy install, if you try, it will let you type 45, then you get a red warning that 50 is minimum. i wonder if you...
@swwils What i deduce from all the comments in this forum is that hardly any installation has been setup. Mine by Octopus was just a simple spec, fit ...
@editor I can detail the concise version of events, if anything strikes a chord I can elaborate initially declined to quote, which I deduced by chan...
@andrewj found this article by heart geeks it touches a lot of topics, WC is as you described, a line or curve between 2 OATs where flow temperat...
@kevh todays COP is 4.02 (0.5-6.8C), 2 days ago was 4.50 (5.5-8C) The lower overnight temperature has affected the performance, likely more defrost ...
The App says it choses the top temperature when OAT is above 12C, my system is running at 36C today and its 6.8C according to Cosy HP. Logic would sug...
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Degrees of Separation
Latest Posts
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Is that correct? I was under the impression that some A...
By Majordennisbloodnok , 30 minutes ago
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RE: Help me keep the faith with my air source heat pump installation
I didn't know about those, they look like good pieces o...
By JamesPa , 1 hour ago
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@mkz, that's very helpful. Even if Urban Plumber are no...
By Majordennisbloodnok , 1 hour ago
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RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
By Batpred , 2 hours ago
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My first question is why bother with the auto balancin...
By JamesPa , 3 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 3 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 , 3 hours ago
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I share the same experience as @majordennisbloodnok hav...
By Old_Scientist , 4 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 , 7 hours ago
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RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump
@jamespa many thanks, definitely i will give the pre...
By ragtime27 , 18 hours ago
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RE: Heat pump installation quotations
@jamespa I noticed that in the Heat Geek design consult...
By Batpred , 19 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 ...
By Majordennisbloodnok , 1 day ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Vaillant arotherm plus 12kW. Installed March 2025. Ex...
By Harebell , 2 days ago
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