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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Jan 15, 2026
Profile Activity
Topics: 20 / Replies: 3942
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

@grahamf good set of questions. Can I suggest just one minor refinement to Q1: In your designs, how do you trade off the up-front cost of the sys...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is it mad to think there should be a minimum SCOP for UK heat pump installs?

This wouldn't solve the problem @mars is trying to solve, which is system COP not heat pump COP. To measure system COP you need to measure output at ...

3 months ago
Forum
Government Schemes, Regulations, Training, Planning & Organisations
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Can you remind me what the current problem you (or they) are expecting it to solve is? The only thing a very slightly larger buffer tank will do is ...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me keep the faith with my air source heat pump installation

Not so far as I know. I dont think that is reported by the API unfortunately. Here is what I have on my 'dashboard' which, in practice, does almost ...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is it mad to think there should be a minimum SCOP for UK heat pump installs?

Fair enough, I stand corrected, my apologies. In that case its currently down to the protection (if any) provided by Building Regs. The requirement...

3 months ago
Forum
Government Schemes, Regulations, Training, Planning & Organisations
Reply
RE: Are We Sleepwalking Into Another Race to the Bottom?

I do agree, but surely that's what we expect from marketing. If you are trying to sell things it's normal practice to stress the upsides and leave th...

3 months ago
Forum
Government Schemes, Regulations, Training, Planning & Organisations
Reply
RE: Are We Sleepwalking Into Another Race to the Bottom?

I take the point but who is ever going to do that? Do you expect Ford to market their cars with the slogan "does the same as a Porsche but not so swi...

3 months ago
Forum
Government Schemes, Regulations, Training, Planning & Organisations
Reply
RE: Is it mad to think there should be a minimum SCOP for UK heat pump installs?

BUS requires minimum SCOP of 2.8, see/p>     Building regulations require   Reasonable provision shall be made for the cons...

3 months ago
Forum
Government Schemes, Regulations, Training, Planning & Organisations
Reply
RE: Mitsubishi Ecodan R290 10kW performance

I dont but in fairness to Mitsubishi you contract is with your installer so it is his job to sort it and refer if necessary.  

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Are We Sleepwalking Into Another Race to the Bottom?

Isn't that the job of a robust interviewer?

3 months ago
Forum
Government Schemes, Regulations, Training, Planning & Organisations
Reply
RE: Are We Sleepwalking Into Another Race to the Bottom?

Can I just say how refreshingly open this podcast was. Mars you did a great job of grilling the installers and you were right to do so, yet at the ...

3 months ago
Forum
Government Schemes, Regulations, Training, Planning & Organisations
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