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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Aug 15, 2025
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Topics: 17 / Replies: 2075
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

For Midea units, this may be possible, at least for some parts of the system, eg I have found the javascript behind the Midea app. But there are still...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

@kev-m - yes, that is correct, all I would add is "with a view to reducing overall energy consumption". That is the whole point of the exercise, no po...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Connecting to Midea MSmartHome using a PC

@batalto - between the 'Midea' COP and my 3 hourly COP? Too early to say yet, but my 3 hourly one might be just a little bit higher, but not a lot. Al...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

I agree. As long as the discussion remains civilised, as it does on this forum, to everyone's credit, then we can only all benefit. I often find that ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

Here's an image of the History Explorer tab/page, now that the COP monitoring has been running for just over 24 hours: Most of it sort of makes se...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

@derek-m - I am not sure about this. That's surely the delivered kWhs needed to keep it at a constant temp during the set back, not the energy needed ...

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

There is, and it's non-invasive to boot, but it means buying from China: You have to be very careful to make sure you select the head unit plus t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Retrofitting: moving to ASHP old oil boiler in large old property - experience/advice please on MSC calcs

I think it was probably less than that, it was a 25 year old Grant triple pass Euroflame boiler. Net result is still the same, though, the ASHP appear...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting to Midea MSmartHome using a PC

@batalto - thanks! Later today, I hope to post the charts produced by the History Explorer add in. On the plus side, these are pretty much automated, ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

@derek-m - in general I agree with your assessment. If I can add some real world observations: (1) I have only ever had one night with a setback, be...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Retrofitting: moving to ASHP old oil boiler in large old property - experience/advice please on MSC calcs

@katcesca - ah the joys and pains of replacing oil tanks. I had a working boiler, and a 25+ year old tank with very early minor pin holing, not even r...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

We've discussed this many times, and will no doubt do so again, but a setback followed by a boost lowers overall consumption over a sensible time fram...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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