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Last seen: Aug 16, 2026
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...
Hi @sheriff-fatman The interactive versions are much better as trying to see details and cause & effect on the multiple graphs is not easy. But...
Hi @sunandair Thanks. The chart shows all the power/energy flows in the heating system, electrical and thermal. 1. The energy to replace the defr...
Hi @sheriff-fatman Cycling at 5C and below is usually defrosts. The other cause can also be an internal thermostat cycling the heat pump due to the...
Hi @sunandair I hope the annotated image and description below helps describe what is happening. A) Output falling d...
Hi @cathoderay Yes the bulk of the energy comes from the already heated water, you can see that as the yellow area above the blue dashed line in th...
Hi @sheriff-fatman Freeze Stat is to stop the water in the outside pipework freezing when the heat pump is not operating (heating), it doesn't caus...
Hi @sunandair We also have a Mitsubishi Ecodan but we also have OEM's energy monitoring kit installed, so have access to data with far greater accu...
Hi @green_fox As a we have a PUZ-WM80VAA with FTC7 (the 8kW R290 Ecodan) I might be able to add some Mitsubishi specific info... As J...
Good graphs @cathoderay but is the axis labelling wrong? X-axis (0-18) should be OAT and y-axis (0-10) COP? Interesting that the COP advantage of cont...
@cathoderay yes I am familiar with SQL. Interesting numbers... If there was no setback we have 4.12 kWh and a mean COP of 5.21, so energy in of 0.791 ...
Hi @cathoderay - this is a good discussion! I feel like we might be making some good progress in answering the fundamental setback question. ...
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Degrees of Separation
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I don't notice mine defrosting, and most of the time Im...
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