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Last seen: Oct 19, 2026
Thank you, it is. Your second paragraph also covers something I had been thinking about as well, the situation where a true but small inter-sample dif...
I wasn't looking for correlation, just gross eyeball differences between SB and no SB running. As I said, I can't think of any other way of presenting...
At least the ceiling got plastered, not me! Make of this quick and dirty analysis what you will. Actually, it wasn't that quick, because it involved...
@jamespa - thanks, will get back to this later, I am about to get stuck in to some ceiling repairs!
It does vary. Here is the chart again: On this chart it is more often 2-3 degrees. You can also the the warming caused by the heat pump turning of...
It was probably me, but I think it also applies to many if not most heat pumps, because the immediate environment, specifically the air temperature, i...
Sorry, I hope it is all there, but I didn't explain it well. Starting with your IAT/OAT delta t values (19/10 to 16/10 for 6 hours etc), instead of ...
The AUC calculations I did were for the whole week, with hourly intervals. I think the idea that daily setbacks put the whole in a 'different place'...
Another thought has occurred to me. Maybe the monolithic house, once it is up to temperature, is such a huge heat (energy) store that you can turn off...
I deliberately used the regression equation from test week, so they should be representative. The average IAT did change over the period, but only sli...
I do quite a lot of sailing, which is why I am interested in forecast accuracy, particularly for wind speed and direction, but also for visibility, he...
I agree, but I think there are sufficient caveats. In particular, my post that reported my findings ended with a statement that my findings were not d...
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Degrees of Separation
Latest Posts
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First you need to know how much thermal energy you'll n...
By bobflux , 5 hours ago
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RE: How quickly would you want/expect heat recovery to take from setback?
@toodles Ah, that makes sense. Your using the TRV bo...
By Singlespeed , 5 hours ago
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RE: Renewables & Heat Pumps in the News
Yes, energy seems less of a priority, even if the cost ...
By Batpred , 6 hours ago
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
Come for the low-carbon homes. Stay for George Clarke’s...
By Mars , 1 day ago
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@razz, as we head into the heating season, I just wante...
By Mars , 1 day ago
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RE: How should the Boiler Upgrade Scheme be reformed?
Not quite, regular A2W heat-pumps need a load of extra ...
By Temperature_Gradient , 3 days ago
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RE: Heat Geek installations: share your experiences
one thing i learnt from reading people’s comments and e...
By Batpred , 3 days ago
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RE: Cooling/heating with one unit
"The way we use A2A on a cheap overnight EV tariff is t...
By mrkfm , 3 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
We have ‘signed on the dotted line’ today for a Panason...
By Toodles , 3 days ago
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
...or it was there and was lost thanks to laziness and ...
By Majordennisbloodnok , 3 days ago
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Bufferless design & control of Chinese air to water monoblock hybrid heat pump in Alberta, Canada
This post is about how I successfully configured a buff...
By Tony.Stolz , 4 days ago
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The installer visited yesterday and suggested the noise...
By JamesChatz , 4 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Your house sounds a lot like mine. 2 surveyors each sp...
By JamesPa , 4 days ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
Thats true only if you do the wrong experiment. Done c...
By JamesPa , 4 days ago
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