Sole heat pump - power consumption for screed program

We are currently looking for a suitable electricity supplier and are a bit overwhelmed with which electricity consumption we should specify, because the screed program is so difficult for us to calculate...

What consumption did you have during the screed heating phase?

We would plan for about 2000 kWh additionally, the screed will hopefully be installed next week.
Brine heat pump (but that will probably run via the heating element anyway), 160 sqm area, KfW70 house.

Is it even possible to estimate it like this?

It probably depends heavily on the area. We needed about 1500 kWh for 125 sqm of screed. However, with pure electricity.

Should the heat pump use the brine source for this or the heating element?

The efficiency class and the type of heat pump are basically irrelevant.

I think then our estimate is roughly correct. I already wrote above: 160sqm, will probably also run on heating rod.

In all other cases, I would also hit the person. The source is not designed for that at all and would probably freeze.

Hi,
with us it was just under 3000 kWh only with the heating element for 146 sqm. Although the sanitary people set it to 9KW and I think less would have been enough... [emoji6]

Presumably, our estimate is then accurate! And then we'll see what is actually consumed.

Thanks already!