What annual consumption should be specified in the electricity contract?

Is 35 degrees flow temperature for the underfloor heating not a bit high?

That is the value from the heating load calculation, but thanks for the hint, I will ask the heating engineer about it at some point.

Is 35 degrees supply temperature a bit high for underfloor heating?

In my opinion, that is normal, I have been told this in various conversations with different SANs and I have also found similar indications from manufacturers.

Hello everyone,

I'm chiming in here because I'm facing exactly the same issue. What should I specify.

Kfw 40
Air-to-water heat pump Rotex HPSU compact
Ventilation system Viessmann Vitevent 300
Underfloor heating
Living area 145m²

According to the energy certificate, the following values are calculated

Usable floor area 182.51 m²
Final energy demand 12 kwh/m2a
Primary energy demand 21.40 kwh/m2a

Can I simply calculate the final energy demand x usable area as a first starting value, so 182.51 m² * 12 kwh/m2a = 2190.12 kwh? Or should I rather use completely different values for a first "annual consumption"?

Many thanks in advance

Our consumption (2 adults + 2 small children; air-to-water heat pump, KfW70, 150 m²): Normal electricity: just under 2,000 kWh p.a. Heat pump electricity: 1,500 kWh peak + 2,000 kWh off-peak

I would look at the heating load calculation to see what it says, you can roughly estimate it, it will certainly be less. 5000 is a bit too much...

Well, we easily run 5000 kWh through the power lines per year. However, also at about 24 degrees throughout the whole house and shower orgies of my wife...