Last seen: Aug 28, 2025
As I expect you all have recognised, I tend to be sceptical of data that I can't verify at every stage, especially when the data is in effect the manu...
@batalto - your progress reported here is also very interesting, especially removal of the LLH header and relying on only the pump in the Midea main u...
@batalto - ah, that makes sense, I'd forgotten you have a considerable solar input. Downloading the raw data from the app - do you know if that is pos...
@batalto - I think the problem may be the charting. The numbers for 2022-11-18 ie yesterday/Friday (those in second screen grab) don't appear too unre...
@batalto - it's probably just me, but I am not sure I can make any sense of that chart apart from one thing - like me, you have your DHW desired temp ...
I suppose that is plausible but it seems on the low side. Assuming building heat loss vs temp is linear, 12.4kW @ -2 / 0kW @ 20 degrees ambient, then ...
@derek-m - thanks for the figures. I knew the adjustment wasn't linear, useful to have a bit more precision. Given some of the lockshields only have m...
Interim update: the rads are approaching being balanced, its taking a while because it is so mild and the heat pump is not running for longish periods...
I think so, but can't be sure. They were buried in the floor a long time ago (mid 80s). The point where the pipe enters the concrete definitely has vi...
I wonder what 'these' are? If they are flow meters, they don't come cheap, and four could easily set you back a grand. Also, on a PHE, but perhaps not...
I thought as much, and the answer is simple, as you say, publish the graph for each pump. The manual is huge anyway, a few extra graphs won't make it ...
@derek-m - thanks for the detailed explanation. I still think the plots are not ideal, in particular the lack of scales on the axes. We don't even kno...
Latest Posts
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@dgclimatecontrol Have a look at the article and my c...
By DREI , 57 minutes ago
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RE: Midea ASHP – how to set weather compensation
@pash44pump I'm going to leave this mostly to @catho...
By JamesPa , 8 hours ago
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RE: Electricity price predictions
The gas standing charge went up as some of the network ...
By Jeff , 9 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 , 2 days ago
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I should clarify that the FoxESS web interface is not l...
By Old_Scientist , 2 days 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 , 2 days 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 , 4 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 , 7 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
