Last seen: Aug 28, 2025
@bristoljoe - the old oil system and the new heat pump system both did and do the same work, heating and DHW. The heat pump has only about 1.5m of ext...
@derek-m - still trying to make sense of that climate.py code. One observation: the DHW tank actual temperature isn't defined in that climate.py code,...
This heat delivered by heat pumps thing is a bit of an enigma. I am off mains gas, and used to have oil CH. In a typical heating season, I might use 1...
@filipe - although much of the 'how to' has ended up ad hoc in this thread, I am going to try and write it up in a more structured way in my Beginner'...
@derek - I think it will be outdoor_temperature, the AC (air conditioning) Midea devices use this, and no reason to suppose C3 devices (heat pumps) ar...
@derek-m - I've added the latest code changes. There was a typo you might like to correct in your version (self.outside_temperature = body[data_offset...
You posted while I was writing my last post, I will make the changes now. I meant to say earlier, I think the second byte is heating/DHW status. Se...
Only yesterday, I was thinking that anyone who manages to decipher the Midea code deserves a Turing award. They are in the same order as in the c...
@derek-m - last night's hourly 'byte' values after hex2dec conversion and my assessment (colour bars) of what is what: The current C3\message.py c...
Aha, I think I've got it. Let me put it like this. I thought the message was the data stream, but in fact the message is built by plucking elements fr...
I doubt we will get -12C in the near future! In fact, I think we are unlikely to get much below zero during this week, if that. I will watch the local...
@derek-m - at the moment (13:24) the wired controller outdoor temp shows 12 degrees, maybe it was 11 degrees. At 1308 (one of the random not on the ...
Latest Posts
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RE: Electricity price predictions
The gas standing charge went up as some of the network ...
By Jeff , 49 minutes ago
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RE: Midea ASHP – how to set weather compensation
@cathoderay thanks. Forgive my lack of knowledge on ter...
By pash44pump , 54 minutes ago
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Interesting this post, not the first time I've come acr...
By dgclimatecontrol , 6 hours ago
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RE: Ecodan & MelCloud scheduling
Yes, the 2 are separate. To add to the complex desig...
By HCas , 1 day ago
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RE: What crazy nonsense are inverter limits and why are they imposed?
I think there may be a little confusion in the wording ...
By Old_Scientist , 1 day ago
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I should clarify that the FoxESS web interface is not l...
By Old_Scientist , 1 day ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
Previous was vented and I needed a shower pump and a ve...
By JamesPa , 1 day ago
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RE: Mitsu Wireless Controller and MelCloud
@robs Hi Rob, At the end of a note to Mitsu UK, thank...
By DavidAlgarve , 2 days ago
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RE: Why so many sigenergi installer recommendations?
@adamk Tesla is a great option, it’s also one we instal...
By SAEnergy , 3 days ago
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RE: Rodents! A word of warning for heat pump owners
Hradline in Telegraph: Brace for plague of rats after s...
By Tim441 , 3 days ago
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RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry
As a potential heat pump customer, it would be good to ...
By Temperature_Gradient , 3 days ago
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RE: Octopus replacing the fixed 15p/kWh export rate with a market tracking one
@trbob I have just extracted the details for Agile Expo...
By Toodles , 3 days ago
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RE: Heat Pump Books For Beginners – Bodge Buster & From Zero To Heat Pump Hero
The Ultimate Guide to Heat Pumps is less than a month a...
By Mars , 3 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor Hi Mars, We have just installed a Grant Aerona...
By GrahamF , 4 days ago
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RE: Sanity check please. Battery storage and inverter sizing.
There are MCS guidelines about how close to the edge/ri...
By Old_Scientist , 4 days ago
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RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff
I estimated our usage on the following basis. The mos...
By Old_Scientist , 4 days ago
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@editor Something changed in this last 12 months, they ...
By ASHP-BOBBA , 5 days ago
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RE: Does anyone have experience of a smart water meter?
Just to give a sense of scale, I've used the CCW water ...
By Majordennisbloodnok , 6 days ago
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RE: Powerwall 3 or Myenergi or something else?
We have a Tesla Powerwall 3, recently installed, so I m...
By Old_Scientist , 1 week ago
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RE: Mitsubishi PAR-WT60R-E Wireless Controller installation
@morgan They have been paired once but it was thought b...
By DavidAlgarve , 1 week ago
