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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Aug 29, 2025
Profile Activity
Topics: 17 / Replies: 2081
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Reply
RE: Say hello and introduce yourself

It's actually a work in progress type thread, which will ultimately be boiled down to a Beginner's Guide to Heat Pump Monitoring v2 (v1 ended up as Ho...

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

PS I should perhaps add in that I myself am not immune to redundant word situations, which on rare occasions may spill over into ongoing redundant wor...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

I'm sorry, but I still don't understand what that image shows. Frankly, it's verging on dreadful. I guess it is what happens when you try to do things...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

@filipe - the problem I am trying to deal with is the lag: at any one reading (all the data is collected in one go once a minute), the energy out has ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

Here is a rather cryptic table of htg and dhw COPs with the amps_in shifted downwards one cell at a time: Shift 3 sort of works initially, but the...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

@filipe - this is the key data at the transition time with rather meaningless minute COPs added but they do show how the abberation occurs: At the...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

Another thought, in reality a restatement of @derek-m's thinking, perhaps my implied assumption that one minute's energy in is directly responsible fo...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

In the yellow highlighted section, sort of. What happens is this. The space heating is on 24 hours a day, and uses weather comp to regulate heat outpu...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

In the on_off columns, it is being used as a binary on/off value, but being a number it has the useful side effect it can be used to zero a calculatio...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

@iaack - thanks. The 11.6, which is definitely for the hour not minute, is definitely an artefact, caused by the erroneously high energy out figures f...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

@derek-m or indeed anyone - I have almost got the python code to do everything I want, including allocating energy in and out to space heating or DHW ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A Beginner's Guide to ASHP Monitoring

@william1066 - it goes without saying (at least I hoped it did) that what I write about HA is based on my observations experience and opinions. ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Page 116 / 175
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