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Last seen: Jun 15, 2026
Thats a bit suspicious. Some (older?) heat pumps apparently defrost on a timed cycle rather than on demand. I wonder if these are in that category (...
In short, like much on FB, this is nonsense. The amount of heat lost by the radiators to the room (which is what you care about) depends on the aver...
It will be good then to see some plots tomorrow morning to compare! I'm beginning to wonder from your description if it's delaying starting defrost...
I have one fancoil in an otherwise all radiator system. I am working on adding diy fan assistance to another radiator. The latter is for cooling onl...
I can't comment on the defrost algorithm or numbers. If the heat pump is not recovering temperature after defrost, I would turn off night shift. Be...
I would describe the Vaillant app as pretty reasonable-good. You can change set temperature (which actually shifts the WC curve), change the wc curve...
I apologise if I have contributed to that, it certainly was not my intention.
No. Obviously it cant do anything at all when there is a power cut! Otherwise I would hope it prioritizes defrost over absolutely everything else...
So you make it in the West Country and transport it elsewhere for applications that can stand the cost, which some can becasue the alternatives are as...
In fairness we did something like that in the 1970s when we moved from coal gas to North Sea gas. I have hear it said that, because hydrogen is so s...
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Degrees of Separation
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Is that correct? I was under the impression that some A...
By Majordennisbloodnok , 18 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 , 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 , 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 , 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 , 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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