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Last seen: Jul 6, 2026
This part of our conversation started with a Samsung but no matter. My question regarding whole (integer) degree changes was because our Mitsubishi OA...
The Met Office API being used seems to have OATs to one decimal place. The system in question was a Samsung and not a Midea, but does your Midea WC cu...
The OAT in the above is from a Mett Office API and representative rather than the actual OAT, hence the staggered rise in temperature - the real OAT d...
I covered the energy flows, with the numbers, in great detail in . The energy used by the defrost (and the energy not delivered to the house during th...
Yes, here's the Samsung zoomed out: If the OAT is rising then less heat will be lost by the property and hence during the recovery less h...
Exactly, it's just lag in the system.
As I wrote above "in both of these cases the OAT was rising so it's possible that the WC curve of both has reduced the required flow temp, and hence t...
We have a good understanding of the data and don't need to reverse engineer a defrost algorithm as we are just interested in the energy flows, which u...
But the house with the warmer IAT, and hence higher flow temperatures (everything else being equal), will have a lower average COP during the heating ...
Hi @sunandair Thanks, if you or anyone would like to know more I'm happy to describe our setup in more detail. @cathoderay (who has h...
Our system is radiators, large ones and now with DIY fan systems (so fancoil like), and is straight open loop (no buffer/LLH/etc). So no blending or m...
Hi @sheriff-fatman No worries and hope you don't have to sit in traffic too often! Is it possible to get Home Assistant to record data points mor...
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