Last seen: Sep 7, 2025
Like any heating system the consumption will depend on outside temperature. At the design minimum temperature you need to deliver roughly twice as mu...
An arrangement which recognises that this is a modern totally unnecessary extravagance? Or as @iaack suggests, waste water heat recovery Or just s...
Pretty much I'm coming to that conclusion, TBH it was my hunch when I started this thread but I wanted (and still want) to see if anyone comes up with...
No idea because not sure what they refer to. What's the context and what are the units and factory defaults? Mostly I would say leave things at...
Some manufacturers publish this data including (but not limited to) Midea, Mitsubishi, Vaillant. Its not always easy to find, Mideas is in a password...
We don't and they may well be overstated. Certainly there is a reduction in efficiency because the heat pump has to run at a higher ft, but this migh...
Possibly not. As I understand it this mode, which many heat pumps have, caps the compressor speed which reduces the maximum output but not the minimu...
It will, but it's heating more than you need assuming you are happy with the current downstairs temp and unlikely to fix the basic problem ie that the...
Indeed. In this case I would personally leave it to the heat pump. However if you can align the cycling to cheap periods that's a wholly different s...
Yes, as can more capable heat pump controllers
... which is probably its min output. At 12C you would expect cycling even if the pump was right sized, it gets colder later this week so i suggest r...
Latest Posts
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RE: Midea ASHP – how to set weather compensation
@benson thanks. @cathoderay suggests using data loggers...
By pash44pump , 2 hours ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
I couldn't agree more. This is a case where you buy as...
By JamesPa , 2 hours ago
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RE: Electricity price predictions
Community energy installations are a great idea, but th...
By Scalextrix , 16 hours ago
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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 , 24 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 , 1 day ago
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@profzarkov Good to know in case it ever happens to me...
By bontwoody , 2 days 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 , 2 days ago
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@old_scientist sorry, I should have made it clear that ...
By GrahamF , 2 days ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@thundermink can you provide photos to illustrate your ...
By Morgan , 2 days ago
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RE: Boiling Mad: Exposing Radiatorgate
Hi @Rob, I’d be more than happy to contribute. I have ...
By DREI , 2 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@andris a great year - very happy with our system
By Profzarkov , 2 days ago
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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...
By GrahamF , 2 days ago
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RE: Ecodan software update. Real or scam?
@vinz86 Contact Mitsubishi and an engineer attends and ...
By ASHP-BOBBA , 2 days ago
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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...
By DREI , 3 days ago
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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...
By Majordennisbloodnok , 4 days ago
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RE: Octopus tariffs - a quick comparison
@tim441 I’d agree wholeheartedly with that, with 2 x Po...
By Toodles , 4 days ago
