Last seen: Oct 31, 2025
From the time I was a physics undergraduate it’s been 25 years off. I’ve now retired and it’s still 25 years off. So it’s had a lot of investment th...
Sadly I think it is mad. If the BUS is not granted for too low a system SCOP (I forget the exact system interface definitions and numbers) then who pa...
The air changes per hour in the leakage values is the most guessed parameter. Assessors have guidelines based on the house build date. If you have an ...
@mike-patrick Michael De Podestahas had extensive ‘fun’ with EPCs. He eventually got the basic mistake of rating an Ashp as ‘poor electric heating’ ch...
Back again to the Spanish blackout this was in the Economist last week Which says need for a change of operating procedure. Relatedly (but less...
@jamespa but is MCS capable of knowing the difference between a good, indifferent or bad installation? They seem to first check the paperwork is prese...
Since the combination of fitting plus scaffolding makes a big proportion of the price it doesn’t look as if it matters much. I’m surprised that mono-c...
We use the Vaillant app and it does everything we need. Weather compensation and now the parameters can be adjusted on the app too. There are 3 modes,...
“Anyway, we know that the assumption the heat pump will be running continuously is based on the fact a cylinder is assumed to be always part of the so...
Latest Posts
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RE: Mediation with RECC, what's your experience?
Welcome to the forums @treewizard and sorry to hear abo...
By Mars , 42 minutes ago
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RE: Help me keep the faith with my air source heat pump installation
@jamespa ive had a look at the firmware card in the add...
By AdamK , 45 minutes ago
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RE: New build installation query
That accounts for why you start with an overly-high DHW...
By Transparent , 57 minutes ago
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UFH downstairs and radiators upstairs balancing question
I am running pure WC on .4 curve in our new build with ...
By Walnut-tree-cottage , 1 hour ago
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RE: Daikin Altherma 3 / HomeAssistant
I would have thought that (instantaneous) power is a fa...
By JamesPa , 2 hours ago
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RE: Buying large amp bidirectional RCD and RCBO
It's the requirement to have 100mA earth-leakage trippi...
By Transparent , 3 hours ago
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RE: Are We Sleepwalking Into Another Race to the Bottom?
Alright, I concede that the Toyotas are, as you say a v...
By JamesPa , 4 hours ago
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When to use Octopus Intelligent Go tariff with my heat pump and battery
I have underfloor heating with 15 room thermostats thro...
By ChrisH , 4 hours ago
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RE: Midea ASHP – how to set weather compensation
@cathoderay comments duly noted. I don't disagree with ...
By pash44pump , 8 hours ago
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RE: When will fusion be producing energy?
From the time I was a physics undergraduate it’s been 2...
By Judith , 16 hours ago
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RE: Is it mad to think there should be a minimum SCOP for UK heat pump installs?
Sadly I think it is mad. If the BUS is not granted for ...
By Judith , 16 hours ago
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RE: Who has a V2G EV installation
Perfect, @agentgeorge. I’m always up for some edificati...
By Majordennisbloodnok , 16 hours ago
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus
Yes but... The evidence is that many heat loss survey...
By JamesPa , 17 hours ago
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What Adam Chapman gets up to in his Spare Time.
Ok, so this just appeared on YouTube (don’t blame me th...
By Toodles , 18 hours ago
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RE: Radiator Sizing Dilemma: Vertical vs Type 33 for Low-Temperature Heat Pump Systems
That's my main concern too. On top of that, I ...
By DREI , 19 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp
Thanks, patience is something I’m trying to ma...
By Crimson , 21 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
2025 - now a record year of Solar PV Generation. Octobe...
By AllyFish , 1 day ago
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RE: Mitsubishi Ecodan R290 10kW performance
Totally agree that any system is reliant on the ability...
By Sheriff Fatman , 1 day ago
