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Last seen: Jan 14, 2025
@robl thanks. I think a lot of the discussion confuses the two DT's though. With the output power of the Rad coming from (((Flow+Return)/2)-Room) DT, ...
@robl thanks, but whilst that is an explanation for why lower flow temps are good for COP, it doesn't say anything about DT? by the logic of the comme...
@derek-m yes absolutely, I'm not unread on the subject, I've watched many of these videos, and I understand the physics. I have done detailed heat los...
@derek-m any specific pointers? I also want to avoid units that require proprietary room controllers - I need one with an open standard (230v or volt ...
@grahamh surely not "just maths" though? he's got an 18kw specced heat pump, but he can only get 10kw out of it if the pipework will only do 30l/min? ...
the cheat sheet on heat geek is a reasonable starter but its not too hard to actually do the maths. the equations are all public. For me this is all...
do these HT pumps implicitly work at a higher DT (return to flow DT that is) than the typical 5C that is talked about everywhere for heat pumps? if ye...
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RE: Indevolt Batteries UK Support & Info Thread
Completely agree and the same confusion exists for wire...
By JamesPa , 1 hour ago
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And we're back to @editor's point about supplier depend...
By Majordennisbloodnok , 13 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@baroquebank — some more comments on the latest version...
By cathodeRay , 16 hours ago
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RE: Cleaning solar panels with a hosepipe
This is one reason I'd never make a good solicitor. I'm...
By Majordennisbloodnok , 18 hours ago
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RE: Missing flow temperature in Heat Geek proposal
@sttpd1917 @l8again When we had it commissioned the ...
By Batpred , 20 hours ago
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RE: Microgeneration Certification Scheme (MCS)
I suspect this is why HG has massive ventilation losses...
By Batpred , 1 day ago
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@trebor12345 If you select the Change Rate Plan button,...
By Toodles , 2 days ago
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RE: Jokes and fun posts about heat pumps and renewables
@majordennisbloodnok Well, I can use such terms as HMRC...
By Toodles , 3 days ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
I'd picked up that there was a leak coming from around ...
By Sheriff Fatman , 3 days ago
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RE: Who's your electricity provider and what's your tariff?
Great info. Thank you. Regards Pete
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RE: Samsung heat pump - data cable issue
That's well done. Cable is the correct type (LIYCY = 2x...
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RE: Electricity price predictions
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By Old_Scientist , 7 days ago



