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Last seen: Sep 8, 2026
I have not taken it as a personal attack on me, instead I am trying emphatically to say that constantly pointing out the obvious increases the noise a...
@jamespa - interesting. The confidence interval overlap is indeed very small, and may or may not disappear with larger sample sizes. At the moment the...
I do of course by and large agree, much (but definitely not all, by a long shot) is relevant, because it turns out that to answer the original questio...
I agree, and every now and then I as the thread starter try to remind folks what this thread is actually meant to be about (eg an hour or so ago I wro...
@ The string 'defrost' does not appear to exist in the Midea Engineering Data manual. I have plotted the 'norm' power outputs over the range of OATs...
At the moment, it seems to me there is not enough second thoughts going on, and instead there is a lot of noise repeating stuff we already know - in s...
As I thought, but that is the least accessible place, and invasive approaches are not an option.
DT might actually be the harder one, depending on how and where you measure it (and bearing in mind I have a PHE). The flow rate has two things that m...
If this is correct, then this is compressorgate! Seriously, though, I thought the engineering data was supposed to include the effects of defrost cycl...
Yes, on the left hand side it peaks at just under 8kWh (which is 8kW over that hour, unless I've totally lost the plot). Clearly this is much closer t...
This chart shows the heat pump not quite meeting demand on the left hand side where the OAT is around zero, leaving the IAT below design IAT (19 degre...
@jamespa - very interesting. The degree of correlation in your second chart is impressive. I think I get the idea, the fabric of the house acts like a...
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Degrees of Separation
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Sent you a private email with contact details for direc...
By trebor12345 , 56 minutes ago
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RE: Where heat loss surveys seem to go against practical reality
@rob-of-york — I have total energy delivered plus separ...
By cathodeRay , 1 hour ago
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RE: 7kW EV Charger Options Advice
@rusty Looks like there’s plenty of room in there for a...
By AndrewJ , 10 hours ago
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Panasonic Free Multi Z and Etherea Internal units.
My prospective installers have suggested the Panasonic ...
By Toodles , 15 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 , 17 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 , 17 hours ago
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My Adapt is finally installed and running! Almost a yea...
By tomasmcguinness , 1 day ago
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RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 4 days ago
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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 ...
By AndrewJ , 4 days ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 4 days ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 4 days ago
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It’s been out a few days and Amazon has already attache...
By Mars , 4 days ago
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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...
By Batpred , 4 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 4 days ago
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