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Last seen: Jun 15, 2026
If you put a fan in a pipe you get a much more efficient ducted fan. To get a quiet heat pump you need a fan that spins as slow as possible while movi...
Particles floating in the water are a problem with moving seals like air vents or pressure relief valves, they get stuck in between the rubber seal an...
@trebor12345rebor12345 I got the circulator curves from the docs So at full power for deltaT 5°C it wants 10 l/min or 600 l/h ; at th...
These are a bit hard to read but the information is in there.
Most of the times whole house backup can't work without a large generator, simply because while a realistic PV installation can easily produce enough ...
+1 It's not just cloud though. Many devices have replaced the traditional screen and buttons with a much cheaper Bluetooth chip and a phone app. For ...
I brought my old R407C water to water heat pump to the local recycling center. They accept heat pump related things, old mobile aircon units, fridges,...
So true! Note I wasn't criticizing your message. Simply felt like ranting, because it's ridiculous we have to jump through these hoops to obtain bas...
I'm an electronics engineer, this is the kind of documentation considered appropriate for a 10 cents chip: about 50 pages describing all the character...
Does that include vehicles? Electric cars just slurp energy on an entirely new level. When I put in 11kW of inverter power I wondered if I was over ...
So 5m3 of mortar. With density 1.6-2 and thermal capacity 800-1000 J.kg/°C if the slab heats by 1°C that means 1.7-2.7 kWh is stored. So you can sto...
Agree with everything James said. With a heat pump + UFH + good insulation, if the installation is not botched you're pretty much in the ideal case ...
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Degrees of Separation
Latest Posts
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@majordennisbloodnok I just noticed that A2A manufac...
By Batpred , 46 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 , 49 minutes ago
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@mkz, that's very helpful. Even if Urban Plumber are no...
By Majordennisbloodnok , 56 minutes 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 , 2 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 2 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 , 2 hours ago
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I share the same experience as @majordennisbloodnok hav...
By Old_Scientist , 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 , 6 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 , 17 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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