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Last seen: Sep 7, 2026
I found an announcement and a link here. This is a direct link to a PDF of the letter (link downloads the pdf). If neither of the above work, let ...
Not sure I agree with this, as the control period range spans almost all of the setback period range, meaning the extrapolation is small, and only app...
@jamespa - these may be of interest: plots of the periods at the end of the last heating season and the start of this heating season, when there were ...
I agree, and there is also the uptick at the left hand end very possibly due to declining COP as Set LWT increases. However, extrapolating beyond the ...
I do agree, how the the circulating pumps are treated for energy use is an unknown. I've been inclined to suppose they were part, maybe most, of the e...
The basic answer to this question (is there a vampire load and/or secondary heating source) is relatively straightforward. As far as I can tell, there...
I absolute do get it, and have done so for a time, but only with hindsight. At design/installation time the installer and I hadn't seen the Midea engi...
Not quite right: the available wall space was a significant constraint (no huge rads, allowing a lower LWT), but by using K3s and a high LWT, I could ...
@jamespa - all very interesting, with much to think about. The sun is shinning and I have other things to do today, but I will think about things as a...
I'm not sure I agree about the modelling, though I do 100% agree about more data. The R square values just tell us there is good correlation, which ca...
Welcome to the forum! By a curious coincidence, I used exactly the same quote back in the ancient mists of pre-history in this thread! This has b...
I said I thought I might have the answer, and I think on one level (though there are others), it is when you impose a return to baseline constraint ov...
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RE: 7kW EV Charger Options Advice
@rusty Looks like there’s plenty of room in there for a...
By AndrewJ , 6 hours ago
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RE: Where heat loss surveys seem to go against practical reality
@cathoderay I think there is a reasonable argument t...
By Rob of York , 8 hours ago
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Panasonic Free Multi Z and Etherea Internal units.
My prospective installers have suggested the Panasonic ...
By Toodles , 12 hours ago
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Hi @jamespa , @trebor12345 ,Thank you both for the repl...
By rgabor , 12 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
Great. You just need to find a way of cranking up your...
By JamesPa , 13 hours ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
We had two heat pumps installed without Govt funding. H...
By Rob of York , 13 hours ago
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My Adapt is finally installed and running! Almost a yea...
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RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
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RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
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It’s been out a few days and Amazon has already attache...
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RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
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