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cathodeRay
cathodeRay
@cathoderay
Moderator
Famed Member
6505 kWhs
Joined: Feb 28, 2022
Last seen: Feb 29, 2024
Topics: 14 / Replies: 1342
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RE: Rate the quality of your heat pump design and installation

Once you get the hang of it, it isn't complicated. This is a very simple unadorned example that gets data from my minute data csv file and plots it: ...

6 days ago
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RE: Rate the quality of your heat pump design and installation

@iantelescope - date-time formats can be very tricky, especially with software that likes to be 'clever' - and then gets, for example, month and day m...

6 days ago
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RE: Rate the quality of your heat pump design and installation

If you can log the data to csv files (eg using python), then you can plot the data any which way using any spreadsheet. You can also use python plotti...

7 days ago
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RE: Electricity use

There are a number of threads on this forum, some very detailed, that cover energy and/or electricity use (both matter, and of course they are related...

2 weeks ago
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RE: Real world connection to a heat pump over modbus

@mosibi - thanks for your contribution, looks like an interesting project! However, it does tie the user to using your hardware, ESPHome and Home Assi...

2 weeks ago
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RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

Yes, as has been all my OAT data to date, meaning charts are comparable, as in showing the same data from the same sensor. I do now have an outdoor ...

2 weeks ago
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RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

Continuous running: weather compensation (room stat at 26 ie 'always on'); setbacks timed by turning the room stat down to 12 degrees between 2100 and...

3 weeks ago
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RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

I've been running with 6 hour overnight setbacks for the last week. Here is the last two weeks noon to noon mean OAT and energy use, left hand side no...

3 weeks ago
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RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

@sunandair - interesting. I have added an eyeballed trend line, ignoring the outlier, and the general shape of the curve is very similar to the curves...

3 weeks ago
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RE: Real world connection to a heat pump over modbus

@ctw - Freedom can be very awkward, they have a B2B business model that means that as a rule (but not always) they ignore us mere end users. If you ca...

3 weeks ago
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RE: Real world connection to a heat pump over modbus

@toodles - thanks, in a Midea controller they are labelled H1 and H2. You can just make out H2 (bottom right) in this image of my wired controller wit...

3 weeks ago
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