Last seen: Sep 8, 2025
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...
That will be the water pump capacity not the heat pump capacity, which is dependent on the house loss. The water pump may be on longer than the heat...
That's disappointing. It's way oversized almost without any doubt. 6kW is probably nearer the mark, possibly less. I will re-read your description...
Latest Posts
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RE: Inventor (Midea) Heat Pump short cycling advice
Yeap also for heating (25-26C room temp, set water temp...
By immunity , 48 minutes ago
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RE: DESNZ doing a survey which asks the right questions!
Without a survey their only source of data is probably ...
By JamesPa , 2 hours ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
Hello, unfortunately i did not take any photos, but you...
By ThunderMink , 3 hours ago
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RE: Solar Thermal DHW and ASHP
Since you already have the ashp it makes little financi...
By Judith , 11 hours ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
I think you’ll find it depends on the room heat loss. A...
By Judith , 11 hours ago
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
Just done your survey!
By Judith , 12 hours ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil Fwiw I have the 7kW model with which I'm, ver...
By JamesPa , 13 hours ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@grahamf you appear to value your recirculating loop de...
By Judith , 13 hours ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
@cleardene-ashp just thinking about your issues here. Y...
By Judith , 14 hours ago
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RE: Midea ASHP – how to set weather compensation
@cathoderay OK let's wait and see, it sounds an interes...
By Tasos , 16 hours ago
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RE: What is the Heat Geek Guarantee?
@judith, I’m with you on Heat Geek, but there really do...
By Mars , 17 hours ago
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RE: Electricity price predictions
Community energy installations are a great idea, but th...
By Scalextrix , 2 days 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 , 2 days ago
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@profzarkov Good to know in case it ever happens to me...
By bontwoody , 3 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 , 3 days ago
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@old_scientist sorry, I should have made it clear that ...
By GrahamF , 3 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 , 3 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 , 3 days ago
