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Last seen: Sep 20, 2026
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...
Good I guess these operate the actuators on each loop but maybe one on each manifold operates the zone valve? If tyhere is nothing else to set high ...
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Degrees of Separation
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RE: Next steps on my ASHP journey: Radiators and Pipework
@jamespa since going back to bed and reading again this...
By Singlespeed , 4 hours ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
If they can't don't give up. Heat pumps are, in reali...
By JamesPa , 20 hours ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s I wouldn't be too concerned about the design ...
By Rob of York , 20 hours ago
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
By JamesPa , 21 hours ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 23 hours ago
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RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
By Aventus Eco , 23 hours ago
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RE: Why are ASHP installs so expensive?
Posted by: @batpred There´s another aspect that coul...
By Rob of York , 1 day ago
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RE: Say hello and introduce yourself
@gz00, welcome to the forums. There’s a huge amount of ...
By Mars , 2 days ago
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RE: Home energy storage & battery register
1 fox ess lv5200 batteries, plus 2 more waiting to be i...
By Jimcub , 2 days ago
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RE: Heat Pump deployment statistics: June 2026
@l8again Unfortunately the government is, I suspect,...
By JamesPa , 2 days ago
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My feed of random industrial auctions turned up this au...
By Prunus , 2 days ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 3 days ago
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We’ve just passed 20 million forum views! 🎉
It's official. The Renewable Heating Hub forums have of...
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RE: Who's your electricity provider and what's your tariff?
@batpred When the raw material input has increased in c...
By Papahuhu , 5 days ago
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