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Last seen: Oct 19, 2026
Well found. If that's the case and assuming it's 3 or 4 port not 2 port that could account for another 10-15%. Ideally it needs to go but installers...
Useful. When did it go into shade? If not then, what else was happening at the same time?
Really, only 10%, thats much smaller than I imagined. Doesn't seem a particularly challenging target to me given the right incentives, which surely a...
... but suspicious it correlates with it getting shaded. 11C isnt particularly surprising. Hopefully its white in colour, if it were black it could ...
On other threads people complain about gurgling, which is due to dissolved air coming out of solution during the first couple of weeks. It took nearl...
A header (or low loss header - LLH) can be identified because flow from HP and flow to emitters and return from emitters and return to HP al...
Weird that the Mitsubishi engineer says no. My (vaillant) sensor was specifically placed by my installer somewhere in permanent shade, with no chance...
I thought that but it seems to go to the UFH not the DHW and it should still be warm assuming its from the return, so surely one would insulate it?
I have been trying to work that out from the photos. Still not sure, but like you I suspect that there may be one and it might account for a 10%+ eff...
How odd. Or maybe they have now realised that they are in a competition!
... Isn't great advertising! Or is that too cynical?
Honestly no idea. The simple thermodynamics say that lower DT is always better. I have not heard a coherent explanation why we design for DT 5 not...
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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 ...
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
Come for the low-carbon homes. Stay for George Clarke’s...
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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...
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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...
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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 ...
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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...
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The installer visited yesterday and suggested the noise...
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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...
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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...
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