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Last seen: May 6, 2026
Hi Jo. I've been on Cosy a few weeks now and, like you, have been wondering about this. I've got 10kWh worth of batteries so that is really helping me...
Thanks @iancalderbank. Yep, the calc is, er, somewhat sensitive as you say but as an approximation it's OK for now. I'll look into the metering you de...
Hi @iancalderbank, and sorry for the delay. Turns out there are more important things to do than fettle the heat pump 😂. The primary side pumps are ...
Hi @iancalderbank, and thanks for that. I'll have a look at my pump situation when I've got a bit of time later. Just to answer your point about the...
Hi @iancalderbank. I've done some (crude) monitoring today with the system stable, looking at heat being generated and measuring secondary side flow a...
Thankyou @toodles, I am feeling quite pleased with myself I must admit. 50mm Kingspan all round but they are still fixed to a cold stone wall sucking ...
Hello @alanb. Wee heated lean-to enclosure now built and in operation. I've a wireless thermometer that's telling me it's 2.1°C inside (it's about -...
@iancalderbank Thanks, that's really helpful!
@iancalderbank Joule Samsung have just told me it's not possible to alter the 'slave' to remain on whilst the master goes into defrost. I thought thou...
@iancalderbank Yep, they both have separate controllers (currently linked) but can be reconfigured to run individually, controlled from a single run s...
Thanks @iancalderbank. You're not wrong about the hard work. We clearly don't need 24kW but have made some improvements to the house since the system ...
Thanks @iancalderbank, that's helpful and good shout re the bigger pump. I'll look into that. I might need to start lifting a few floorboards as well!...
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Latest Posts
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RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
By Batpred , 16 minutes ago
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My first question is why bother with the auto balancin...
By JamesPa , 43 minutes ago
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RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 46 minutes ago
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RE: GivEnergy inverter tripping due to over-voltage?
@transparent the inverter was installed in 2021 and afa...
By Tim441 , 1 hour ago
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I share the same experience as @majordennisbloodnok hav...
By Old_Scientist , 2 hours ago
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I agree. So far as I understand, we can't necessarily...
By Majordennisbloodnok , 3 hours ago
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Did you try using the find an installer tool in the sit...
By Batpred , 3 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 , 5 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 , 16 hours ago
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RE: Heat pump installation quotations
@jamespa I noticed that in the Heat Geek design consult...
By Batpred , 18 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: Help me keep the faith with my air source heat pump installation
@jamespa these:
By AdamK , 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



