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...
Latest Posts
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RE: Failing heat pump system - seeking thoughts on a rebuild
@jamespa I think that's a good interim solution James. ...
By bontwoody , 5 hours ago
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RE: Electricity price predictions
Community energy installations are a great idea, but th...
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
I have signed up as well. @belsnugg could you outline ...
By JamesPa , 16 hours ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Ooh, heat pumps in neon blue wrap 🤣 🤣 &...
By Old_Scientist , 17 hours ago
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@profzarkov Good to know in case it ever happens to me...
By bontwoody , 1 day ago
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RE: Are Octopuses Slowing Consumer Adoption of Heat Pumps?
I mean, is this surprising? The local installers in my ...
By Alex , 1 day ago
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@old_scientist sorry, I should have made it clear that ...
By GrahamF , 1 day ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@thundermink can you provide photos to illustrate your ...
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RE: Boiling Mad: Exposing Radiatorgate
Hi @Rob, I’d be more than happy to contribute. I have ...
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RE: Solar Power Output – Let’s Compare Generation Figures
@andris a great year - very happy with our system
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
After our rather lengthy meander off piste, I thought I...
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RE: Midea ASHP – how to set weather compensation
@pash44pump - to collect the IAT/OAT data, can I sugges...
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RE: Ecodan software update. Real or scam?
@vinz86 Contact Mitsubishi and an engineer attends and ...
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@drei When I was in local government we were of cours...
By JamesPa , 3 days ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
Sufficient system volume is also essential for ensuring...
By Old_Scientist , 3 days ago
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RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry
As someone who has suffered from a Heat Pump installati...
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RE: What crazy nonsense are inverter limits and why are they imposed?
I’ve also got a dual fuel Rangemaster. We originally ha...
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RE: Octopus tariffs - a quick comparison
@tim441 I’d agree wholeheartedly with that, with 2 x Po...
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