Last seen: Sep 6, 2025
Thanks for that, I think there is much comfort to be drawn because of: ... with which, based on everything you have told me, I agree. My heat ...
I think that conditions over the last couple of days are about the worst possible - cold but very wet = lots of defrost. I too am interested in what ...
I'm not an ecodan expert but this looks like defrost to me. The give away is that FT goes below RT.. Conditions for defrost are about as bad as they...
I think you are very likely right unfortunately. This is a somewhat surprising conclusion given that the system was presumably designed by Freedom an...
I confess Im a bit mystified. How was the WC curve determined. If it was determined experimentally, then cycling and losses in PHE etc would be, at ...
It claims to use the energy integral as part of the cycling control loop, but is silent about how the defrost control loop works, so I dont know! ...
One might expect (hope) that the heat pump takes this into account in the control circuit, by accumulating differences and overshooting to compensate....
OK, so (assuming Freedom are correct) you actually have two problems. The principal one is that the max pump rate is insufficient, leading to your ou...
All agreed In detail that is true. However its a dead cert that its primary control loop adjusts the compressor frequency and fan speed to a...
I should add to the above one other thing. It is just possible that the Midea is designed for a deltaT higher than 5C at max output, high enough th...
Latest Posts
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RE: Failing heat pump system - seeking thoughts on a rebuild
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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 ...
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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 🤣 🤣 &...
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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...
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
Sufficient system volume is also essential for ensuring...
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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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