Depends on the outside temp too. Best to monitor SCOP. My 180 m2 house with 18 degrees inside in January w ground souce heat pump (IVT Geo 508) and normal radiators ->

- SCOP: 3.88

- kWh used: 525 kWh

- kWh produced: 2034.8 kWh

- Outside min: -11.4

- …max: 5.65

- …mean: 0.3