ᐅ Calculate the annual performance factor (seasonal performance factor) based on electricity consumption?

Created on: 3 Nov 2020 13:09
M
M4rvin
Hi,
I have been operating an air-to-water heat pump in my new build for a year now. Is there a way to calculate whether it is running efficiently?

Elco Aerotop Split 07M-R
Heating capacity 6.4 kW
Seasonal performance factor heating 4.77
Seasonal performance factor domestic hot water 3.58
Overall seasonal performance factor 4.5

Annual consumption heating/hot water = 2630 kWh

The main issue will probably be separating heating from hot water usage, right?
I also cannot find any option in the heating controller to display energy amounts.

Thanks in advance!
M4rvin
T
T_im_Norden
4 Nov 2020 06:43
Has the heat pump been subsidized by the BAFA?
Then you should also have a heat meter; otherwise, there is often a menu option for generated heat or something similar.
This is rather imprecise but better than nothing.
Otherwise, you have no way to check which annual performance factor you have achieved.
L
Lumpi_LE
4 Nov 2020 07:17
Without a heat meter, you cannot determine the annual performance factor.
About 2000 kWh for heating sounds reasonable, but this could correspond to an annual performance factor of 3 to 6...
tomtom794 Nov 2020 18:04
When calculating the annual performance factor, you take the total kWh and the total heat output, right? For example, in our case, the hot water consumption is almost 50% of the total heat output.