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cathodeRay
cathodeRay
@cathoderay
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Illustrious Member
Joined: Feb 28, 2022
Last seen: Sep 28, 2025
Profile Activity
Topics: 17 / Replies: 2189
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

Here's my Midea energy input/output, 24 hour moving (trailing) COP and the outdoor ambient temp for the period since I got the thing up and running ag...

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

This is the problem with proxies - measuring A as an indirect measure of B. It is a very common problem in medicine, you measure A because it is easy ...

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

Thanks for the clarification points. It seems the norm, at least among the Midea app and Mecloud, to have 'odd quirks' One of the Midea ones is phanto...

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 don't have an Ecodan and am not familiar with these plots but I do wonder if the flow/return temps are the set, not actual, flow temps (which might ...

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

Exactly, we don't know what goes on inside the box, in particular how the controller works out power in and power out. As you say, what is/isn't inclu...

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

Scene: The Apprentice Boardroom, Week 3. The candidates have had to design an app to monitor their heat pumps. Midea have managed to smuggle one of th...

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

@william1066 - I have already run smartctl on the disk, see previous post at 12/02/2023 5:05 pm, 100% pass, and total lifetime hours confirms disk was...

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

I've just used a spreadsheet to calculate the daily COP from the recovered data, and made a chart: Credible (see below), so much easier than using...

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

The HA mini PC is behind the router firewall, which I think should should keep nasties out, and I only have access to it via a local IP address (192.1...

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

That will certainly cure any insomnia! I have now run SMART reports using a Win GUI for smartctl on a bootable Win PE USB stick on the HA OS drive a...

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

This very quick and dirty chart shows the data is still present in the corrupt database. Procedure: open corrupt database in sqlite database browser, ...

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

I think it is generally well known on here that I am no fan of Headroom Heat Pumps because they refuse to talk to us mere punters. We put the food on ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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