Air-water heat pump current consumption and data

We have been around 3400 kWh on average per year for the last two years. Heated area is 218 m², hot water 50°.

Very similar data here. Last year 3300 kWh with 205 m² KfW55 and HW46°.

WW46 degrees doesn't work for us, we only have 180l.

I am always happy when it gets cold. Then the brine heat pump can finally play out its advantages compared to an "air pump". ;)

Regarding the consumption data. In order to compare these somewhat meaningfully, in addition to sqm and hot water temperature, you also need:
- how many sqm are actually heated (it is not uncommon to read 250 sqm, but only 120 sqm heated)
- room temperature
- number of people (warm water consumption)
- KfW classification
- location (on the cold Alb or in the Rhine plain)
- …

Level of series

Rheinebene :rolleyes: (also looks much better this way :D)

Rheinebene :rolleyes: (also looks significantly better that way :D)

just say on the river :-D

We had a separate meter installed by the electrician, everything related to the heating runs through it. Otherwise, we only have one meter from the energy supplier.

Can you please tell me something about these costs? Which meter did the electrician install? Calibrated? Unequal?