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Last seen: Jun 16, 2026
Another thing I noticed in my quick skim was a graph showing steadier temps with ordinary trvs than with smart trvs which made me wonder whether the o...
The original paper is 84 pages long so deserves a good read, which I intend to do. The key question, which is not stated in the summary, is 'what is...
Personally I think you are well beyond believing an installer instinct or NAPIT. When you adjusted the heating as suggested here you were warm enough...
Hot pipes connected to the cylinder should be insulated for at least 1m from the cylinder. 0.3 C/hr is 87W, what is the cylinder loss spec, this does...
I can't find any actual regulations governing the clearances. It's notable that the new Valiant models have much reduced restrictions on placement so...
19k is having a laugh at your expense. Ignore. The only connection vaillant need to the dhw tank is a temperature sensor. Almost all heat pumps ne...
RT is a function of flow rate and heat demand and not something you directly adjust. It will be measured by the heat pump for sure so the information...
I agree with pretty all of what @bobflux says. With 140sq m well insulated and the guest rooms not all together zoning is going to be a waste of time...
Quite possibly all wrong. Get other quotes or regret Can you tell us more about the house, construction, location, floor area, climate where you ar...
What does this include? 3K is well ott. Check midsummer wholesale for a sense check/Calibration. Vaillant are neither the cheapest nor the most e...
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Degrees of Separation
Latest Posts
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RE: Harvest Thermal - ASHP with a smart thermal battery
Thanks @jamespa many good points. I'm one of those st...
By springswood , 1 hour ago
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RE: Heat pump installation quotations
That will be absolutely murdering your energy efficienc...
By EtchedPixels , 9 hours ago
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Floor standing brackets for K3 rads
My neighbour is a plumber and said I would need to fit ...
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After an intense recode, I’m pleased to announce that w...
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Why do you want to maintain a specific deltaT? The out...
By JamesPa , 11 hours ago
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Hopefully this will answer your question. To...
By ASHP-BOBBA , 12 hours ago
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RE: Help me keep the faith with my air source heat pump installation
I would be interested to find out if others do this and...
By ASHP-BOBBA , 12 hours ago
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Don't you dare. You just carry on as you are; as @batpr...
By Majordennisbloodnok , 14 hours ago
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RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump
@ragtime27 some rooms in our house only have one place ...
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RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
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RE: Indevolt Batteries UK Support & Info Thread
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RE: GivEnergy inverter tripping due to over-voltage?
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RE: Say hello and introduce yourself
I hope so, @toodles. It's not often that we see a situa...
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RE: Electricity price predictions
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