Thanks @zapaman. Understood and most instructive.
For those who would like to see live real time heat pump performance. If you already have a heat pump and have a monitoring set-up then do consider sharing your data if you are comfortable with that.
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My ASHP stats Nov-2022
Elec consump = 242Wh
Overall COP = 3.78
COP space heat = 4.11
COP hot water = 2.12
total heat delivered = 916 kWh
Average target flow temp = 30.6°C
Average flow temp = 32.1°C
Typical Power draw SH = 450W
Typical Power draw DHW = 1.4kW
kWh of electrical consumption versus kWhs of heat delivered looks great.
As we’re hitting colder weather, how are you finding the monthly running costs versus the cost of gas?
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Our overall bill for the month of November is shown below.
The ASHP consumed 43% of the electricity we used or probably a bit less once you factor in PV self-consumption. So let’s say 40% to keep it simple. Hence 40% of £175 is £70 (cost of the electricity to heat our house during November). December and January will probably be a little higher than this, say around £100-120 for each month in terms of heating cost. We keep our house at ~19.0-19.5C.
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