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cathodeRay
cathodeRay
@cathoderay
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Illustrious Member
Joined: Feb 28, 2022
Last seen: Sep 18, 2025
Profile Activity
Topics: 17 / Replies: 2150
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RE: Looking for reference sites and installer recommendations

I know that Evergreen and Homely are one and the same, what I wanted to be sure about is whether @jswhite's Evergreen are one and the same. I think we...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Looking for reference sites and installer recommendations

This is a huge factor these days, and heating, of rather lack of it because of unaffordability, is a health problem too. But there is no getting round...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Looking for reference sites and installer recommendations

I have to suggest that, while anecdotally there may be accounts that suggest this is the case, in fact it is a myth. We need to separate fact from f...

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

@derek-m - if I read the table on that page correctly, the default setting for S2 positions 3 and 3 is 11 ie on/on which equals variable speed Wilo (p...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to ASHP Monitoring

@morgan - one reason I called this post 'A Beginner's Guide' is to remind me to keep it as accessible as possible. I'll try to put together a glossary...

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

I get the impression this is what is supposed to happen, but looking at the Midea Operational Parameters, the flow rate seems to favour around 1.4 m^3...

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

I think you did a remarkable job of condensing many years of experience into a single sentence, but at the same time, I am also aware that in an ideal...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to ASHP Monitoring

Indeed, see my comment elsewhere (<=link). I particularly like the 'modbus hat for a raspberry pi', it's absolutely brilliant. I will endeavour to ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

I hadn't, but now I have! Interestingly, this is the tightest of all the scatter plots. If I do it as a linear plot, R2 = 0.9507. Need to bear in ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

I have just done my weekly data update, a very tedious manual transfer of data from the Midea app into a spreadsheet, and the updated charts look like...

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

Don't y'all just love the jargon! More seriously, this is one of the big hurdles newcomers need to get over if they are to make any progress in this a...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

I suspect getting your head round this quote is crucial to this debate, though the intervals are probably better thought of as 2 hours of COP2 vs 8 ho...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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