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Last seen: May 17, 2026
@editor i have detailed my experience with Octopus on your forum, if you need further discussion on them id be happy to spend a few hours detailing ho...
@papahuhu thanks for the info, not sure Id want a sauna, Im aiming for a nice background heat from UFH and no draughts. I’m walling in the stairs and ...
@andrewj your right, the loft insulation will keep more heat in the bedrooms, its one of the areas Octopus and me disagreed on. I have kingspan in the...
@andrewj The heat pump survey should identify the heat loss of the building. As your house is overheating, this points to the survey being wrong and...
@jamespa maybe we can suggest this to Mars to discuss with heat pump manufacturers
@jamespa The flow temp of my system is set at 36C on the Cosy Hub, the temp gauges on my UFH manifold show a flow of 37C and return of 27C, effective ...
@andrewj have you tried setting it at 2 and 1 and recording what temperature the room gets to. I did that in all my upstairs rooms with radiators an...
@andrewj why is the TRV not working? With it set at 1 the room temp wont get above 18C, setting 3 is 21C i have my spare rooms set at 2 to focus the...
@toodles if @andrewj needs to turn the lock valve to almost shut, doesn’t that point to the radiator being way over sized? The diameter of the flow ...
@ecoste i was reading the installation manual for my Cosy6 stored in manuals.lib last night. It warns not to set flow temp below 36C as it affects per...
@swwils OTA can only occur if the code is held in electrically alterable rear only memory, EAROM. Often a processor has code baked into it, which is w...
@kevh the engineer told me he had a box full of old pcbs that get sent back to NI for processing; likely he means new firmware coded onto the pcb
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Latest Posts
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Couple of things: A2A do defrost, they sometimes do sta...
By ASHP-BOBBA , 2 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 , 3 hours ago
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@mkz, that's very helpful. Even if Urban Plumber are no...
By Majordennisbloodnok , 3 hours ago
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RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
By Batpred , 3 hours ago
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My first question is why bother with the auto balancin...
By JamesPa , 4 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 4 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 , 4 hours ago
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I share the same experience as @majordennisbloodnok hav...
By Old_Scientist , 5 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 , 8 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 , 19 hours ago
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RE: Heat pump installation quotations
@jamespa I noticed that in the Heat Geek design consult...
By Batpred , 21 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



