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Last seen: Feb 3, 2026
@transparent Thanks for the info, i will try to get EDF to escalate to the DCC, if that doesn't work i will have to wait for the new WiFi system to go...
@tim441 Re the silent mode, It made me think have a missed something, but i have looked it up, on the Viessmann all the silent mode does is restrict t...
Does anybody have any figures re the efficiency of heat pumps when under different loads? A car engine ticking over is more efficient than one runni...
@jamespa It depends on what "bad" cycling is. In spring it would run for a total of 4 hours in the 9 hour period that i had it set for, it would cycle...
Our heat pump is oversized by a factor of 2. It is capable of 10Kw at temperature of -5, the most we have used in one day in the last 2 and a half yea...
We have a 10Kw Viessmann 200A it SCOP is currently 5.2, this has increased over the last 12 months from 4.7 by tuning the system to our property. The ...
@cathoderay Re the 1.18 correction figure. I have a completely different pump (Viessmann) and have a well insulated property with underfloor throug...
With reference to the now christened Vampire load, on my Viessmann i have one meter monitoring all the energy to the entire heating system, the other ...
I am new to the forum, but have been following this topic closely, as I am sure are many other heat pump owners. To quote Sherlock Holmes - When yo...
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Degrees of Separation
Latest Posts
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Whats more relevant is that a badly installed air/air s...
By EtchedPixels , 14 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 , 2 hours ago
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@mkz, that's very helpful. Even if Urban Plumber are no...
By Majordennisbloodnok , 2 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 , 3 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 3 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 , 7 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 , 20 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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