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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 23, 2025
Profile Activity
Topics: 17 / Replies: 2890
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RE: Rethinking the mindset for mass retrofit - a provocative idea

Can I cross-post your proposal (with credit or without as you prefer) to buildhub. There are some reactionaries on there who seem to criticise everyt...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rethinking the mindset for mass retrofit - a provocative idea

@iancalderbank I agree its a risk, but as you say it happens already. So I currently face paying a large amount of money to an (often fly by night) '...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rethinking the mindset for mass retrofit - a provocative idea

@bontwoody Yes true. Having said that I would personally prefer to have (or at least trend towards) solutions that don't rely on government subsidies....

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rethinking the mindset for mass retrofit - a provocative idea

@bontwoody 1. I have yet to find a manufacturer that quotes SCOP at 65C. What I did was create a model based on published cop at various flow ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Rethinking the mindset for mass retrofit - a provocative idea
2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 67
Views: 10454
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RE: Rate the quality of your heat pump design and installation

There is an edit button (see picture). It disappears once someone else comments though

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump research study: UK homeowners that decided not to install a heat pump after considering it

@iancalderbank @editor It would be interesting to take @iancalderbanks list and use it to devise a considered answer to the question If you were 'in c...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump research study: UK homeowners that decided not to install a heat pump after considering it

@iancalderbank I think you have pretty much nailed it. As you say many of these either are not true or don't need to be true, but I think the public ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump research study: UK homeowners that decided not to install a heat pump after considering it

@derek-m I had the same cynical thought. As it happens my comments would have related to regulation, installation industry and engineering challenges...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump research study: UK homeowners that decided not to install a heat pump after considering it

I volunteered (I heard about this via another route). They were initially going to include me but this morning cancelled. Because I have (more or le...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate the quality of your heat pump design and installation

@iancalderbank "But, if the householder has previously upgraded a bunch of radiators, and just so happens to have been forward looking enough to make ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate the quality of your heat pump design and installation

@iancalderbank I agree. Just bear in mind that the BUS requires MCS and MCS requires that the whole system has been designed and installed under the...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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