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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Sep 13, 2025
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Topics: 17 / Replies: 2131
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Reply
RE: Accessing and analysing data from your heat pump

@oswiu - I've got a lot to learn. I come from the Morris Minor era of electrical engineering, where the most complex thing I had to do was spray WD40 ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Accessing and analysing data from your heat pump

@oswiu - interesting, all gist to the mill. Here are some screen grabs of some things I have come across. From a Midea M-Thermal 'consumer' brochure...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

Yes, all the stuff I have found is for Midea AC units, but I reason they might be very similar. I also tried using midea-discover (after pip instal...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Accessing and analysing data from your heat pump

Indeed, I have contributed to these other discussions. There is no doubt the data is there, and it also seems equally beyond doubt that the manufact...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pump Truth or Myth#1 - Keeping it running 24/7 uses less energy

Exactly, this is the problem I have, and it happens even with a small setback to say 16 degrees, but that has the effect of turning the heat pump off ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pump Truth or Myth#1 - Keeping it running 24/7 uses less energy

Very interesting Kev. There has always been a lot of smoke and mirrors on this subject, extra energy need to raise rather than maintain temperature et...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@batalto - I have been looking at the Midea controller 'Operation Manual' (the small ~4in x 4in white booklet with the QR codes on the front) that cam...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

And of course it doesn't need electricity to run, very useful in power cuts. I do have an inglenook, but it has an open fire on fire dogs with a large...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

@allyfish - thanks for clarifying. I think the important point is that marginal units, and even some not so marginal units, will struggle in colder we...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

@batalto - one of the upstairs rads is 2 degrees warmer than the others which are all within half a degree of each other. I tightened the hotter one b...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

Is this correct, I wonder? I'm getting at the old energy vs power thing again. Isn't the (max available) power (in kW or could for example if it was a...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

@batalto - they are as balanced as I can get them (mostly by lockshields, starting full open then closing in stages in turn, then final tweak where ne...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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