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Last seen: Oct 19, 2026
@iwolf - I have a very similar if not the same heat pump. Yours has a suffix, perhaps that means it is the German model. I don't speak German I'm afra...
My reading of the rules is that secondary glazing is definitely OK in listed building. The only alteration is a removable magnetic strip, on a par wit...
Hmm, the joys of old buildings! Are the metal frames mounted in wooden frames, as is often the case? If so, and enough exposed surface is available, t...
@toodles - perhaps more likely cool chilled out bats, the heat pump after all puts out cool air. But good to be free of bat poo. @majordennisbloodno...
@toodles - as you may recall, I have a listed (Grade II) building, and so have some experience in this area. It doesn't have to be expensive, that isn...
The design/heat loss calculations IATs varied between rooms, range 19 to 22 degrees, to satisfy MCS requirements. The average was 20.4, say 2 degrees ...
That's a good point, I forgot i am only dealing with a steady state linear relationship that doesn't involve a declining COP. Here's the linear regres...
I think you are making assumptions here. Review the data for Jan 2024 above, and posts passim that include setback periods. The house has a relatively...
I appreciate this thread may appear to be going off piste but I think if we take OP's original statement ('My approach is then, to simulate an ASHP wi...
It was early days, I had little data, and only very basic (S)COP data. However, even allowing for that, the discrepancy was sufficient to create, at l...
@jamespa - something else to add to the mix. The fact the conundrum post plot used very early data, with energy out determined by multiplying the ener...
@jamespa - I've been giving it some thought. As I said it was a long time ago especially the oil period. I probably put the basic timer settings in de...
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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 , 10 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 , 10 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 , 10 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 , 2 days 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 , 2 days 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 , 4 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 , 4 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 , 4 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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