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Last seen: Oct 15, 2026
I was replying to a post with no content relating to my analysis. When I posted my analysis of one of our system's defrosts I didn't say it was rep...
Thanks for posting my images again, the OAT in each of these examples was -1.5C. They were posted to show the differences and similarities in approach...
Of course I have mentioned the OEM heat pump monitoring system that I have, doing so gives context to what I write. I have posted links to OEM's websi...
Reassess my energy review? So the following quote fromisn't a reassessment? "...some of that heat (warm water) will be used by the defrost process (...
Great, so you have proven that MELCloud is consistently inaccurate! That doesn't prove in anyway that the estimated values from MELCloud are accurate,...
Panic? Seriously? Wanting people to have accurate information isn't panicking. Why? Nothing that I've said Mitsubishi don't already know...
Accuracy of the data is no concern of yours? So you are happy to spread your opinion based on nothing but wishful thinking? There is no panic, just ...
Why when the software system that you are using is so inaccurate? And because of this inaccuracy you can't possibly answer that question. ...
Both @cathoderay and I have posted data on defrosts, both show no or limited extra electrical energy used by a defrost. And @cathoderay's flow tempera...
🙂 I wasn't suggesting the Romans had a complete model but two millennia ago they could heat a building to three different temperatures with some cons...
@cathoderay - thanks for an interesting discussion! The heating/building industry doesn't but science/engineering isn't so limited. Modelling heat t...
It's close enough to steady (+/- 35W) to get reasonably accurate steady state values, that can then be used to calculate what happens if something hap...
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Degrees of Separation
Latest Posts
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
I think Heat Geek have done an amazing job on their bra...
By Tomtheheatingengineer , 4 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
I have just had 3 heat loss surveys, one by heat geek o...
By David , 4 hours ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
I think that's the key question. After all inverter uni...
By Prunus , 6 hours ago
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RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 7 hours ago
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RE: How should the Boiler Upgrade Scheme be reformed?
A unit which uses water to transfer the heat/chill from...
By Temperature_Gradient , 7 hours ago
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RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 7 hours ago
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RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 8 hours ago
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RE: Missing flow temperature in Heat Geek proposal
Good plan. If you can get half hourly meter readings a...
By JamesPa , 13 hours ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
@editor Most certainly. The heat pump was an ideal s...
By Abernyte , 13 hours ago
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Although regulations may well vary from country to coun...
By Majordennisbloodnok , 14 hours ago
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RE: Does anyone have experience of a smart water meter?
Yep I caught our slow leak from a £100 bill rise 8)
By EtchedPixels , 14 hours ago
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RE: Do You Need a Buffer Tank or Low Loss Header for Underfloor Heating in a Large Property?
@jamespa in some cases, failing the Turing test might b...
By GrahamF , 17 hours ago
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RE: Passiv Smart Thermostat - Help & Forum Support
@energystoragetech The heat capacity of some...
By JamesPa , 19 hours ago
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RE: tepeo ZEB UK Support & Info Thread
Sorry you are correct, I was remembering figures from t...
By JamesPa , 1 day ago
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