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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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RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 10 hours ago
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RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
@jamespa that’s actually a really interesting observati...
By Mars , 10 hours ago
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RE: How many people are happy with their ASHP and do you believe them?
Good luck, I spent a couple of hours and, whilst I foun...
By JamesPa , 11 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 , 18 hours ago
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@editor "The interesting bit is that many modern invert...
By Singlespeed , 19 hours ago
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RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
By downfield , 20 hours ago
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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 , 21 hours ago
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Mentally you have to separate the ac side and the DC si...
By JamesPa , 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
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RE: Indevolt Batteries UK Support & Info Thread
Not known yet. I've asked a local Councillor to follo...
By Transparent , 3 days ago
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Hard to tell but I think I have placed the arrow on wha...
By ASHP-BOBBA , 4 days ago



