Underfloor heating air-water heat pump. House too warm when the sun shines

Yes, the electricity meters in the devices are also partially very inaccurate, completely unusable in my heat pump.

If you do not have a separate meter for electricity consumption, you can statistically compare the data in the heat pump against the electricity consumption from the supplier's meter. Significant discrepancies then become apparent: "Household electricity = total electricity consumption - electricity consumption of the heat pump." If on cold days the household electricity consumption is regularly higher/lower than on warm days, meaning if it correlates with the supposed electricity consumption of the heating system, then something is wrong.

Yes, reliable data is usually only available if a separate electricity and heat meter has been installed.

Our HomeManager has logged data for the last cold days: 19.01. Total 26 kWh - of which 13.9 kWh for our WP 20.01. Total 27 kWh - of which 14.4 kWh for our WP 21.01. Total 23 kWh - of which 13.4 kWh for our WP We have about 22-24 °C in all rooms from the basement to the upper floor Warm water 44°C hysteresis 3°C There is still snow here AT always below 0°C / 940mNN 180m²+Keller

I would be interested in that too, I also monitor my consumption and it doesn’t seem exactly low to me.

I would join in there as well. I’m interested too. In 24 hours, depending on the weather outside and whether the fireplace is on or not, we have between 1.5 and 3.5 cubic meters. 125sqm heated area, continuously between 22.5 and 23 degrees everywhere. Except the bedroom.
The hot water is set at 50 degrees.

Of course, I read the electricity meters, just wanted to mention that I cannot read anything precise on the heating itself!

Just to be sure for idiots like me: do I get the amount of heat from gas by consumption x calorific value?