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Last seen: Jan 29, 2026
I found this schematic in the Midea engineering data document. The basics design can viewed as consists of four parts: 1. A compressor, condenser, f...
When the heat pump starts from cold the LWT and RWT are both low, therefore it does not have to produce very high temperature output. I’ve included th...
I would have thought that in the context posted it was obviously the power shown on the graphs rather than the surrounding summary data that I was dis...
Well, I beg to differ. The important thing is to understand how code is designed. It seems to me the COP is irrelevant once the compressor stops but t...
There is a setting for how long after the DHW reaches the required temperature to run the pump (defaults to 5 minutes but can be read). The DHW temper...
I posted some photos of the minute by minute ASHP circuit power readings during the startup of the heating a few days ago. I doubt it is very helpful ...
One day we won’t be able to have electric motors, transformers or anything that causes a problem. We will probably have to have our own storage and on...
@transparent Using the billing information of 1.32kWh this morning when the 5kW inverter switches to battery charging at 00:45 and with an assumed b...
Yesterday the electrician completed the distribution board (consumer unit) upgrade started by having solar+batteries and Zappi EV charger installed at...
I had all my 22 rads replaced with mostly triples and a few double. I see P1 rads listed above. My Midea 12kW ASHP mostly runs at 40c leaving as the t...
@transparent, I agreed the time of GO with the installer and we then inset it 15 minutes. I know from billing that the timing is accurate. I have a...
@transparent My installer has set the system to charge during a window from 00:45 to 4:15. Everything runs from the grid in that period even if the ba...
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Degrees of Separation
Latest Posts
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RE: Octopussy cosy 6 experience
@paultheheating Unless things have changed more recentl...
By Toodles , 4 hours ago
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RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Sorry I thought and meant to put 'may' in, but the diff...
By JamesPa , 6 hours ago
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The alternative would be to move some productive energy...
By EtchedPixels , 7 hours ago
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RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
By davidnolan22 , 8 hours ago
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RE: Adding data centre electricity costs to domestic energy bills?
Potentially the largest data centre hub in Europe and t...
By Jeff , 12 hours ago
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RE: Aerotherm and weather compensation
The principal cause of inefficiency if a heat pump is n...
By JamesPa , 1 day ago
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RE: Solar Power Output – Let’s Compare Generation Figures
Very nice. we’ve been super soggy here, but rather m...
By Papahuhu , 1 day ago
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RE: DIY powerflushing tutorial
Interesting! I toyed with the idea too. But I installed...
By bobflux , 1 day ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews Agree with the others on sequence: loft first...
By mk1234 , 1 day ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@etchedpixels Agreed, just a thought for others. I am...
By Watcher , 2 days ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
Heating been on for 4 weeks now, continuous. It's 6C o...
By trebor12345 , 3 days ago
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Coming back on subject... A shortened version of the ...
By Transparent , 3 days ago
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RE: Say hello and introduce yourself
Perhaps it is time for an update on ‘our’ project. We h...
By Toodles , 4 days ago
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RE: Free app: run the immersion / heat pump from Growatt battery & solar surplus – no Home Assistant
Please bear in mind, everyone, that in order to use thi...
By Majordennisbloodnok , 5 days ago
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