Air-water heat pump current consumption and data

That would be really very very nice :)

Okay, I am about one third over. Where it comes from? I have no idea. Everything is standardized, stone and insulation materials. It can only be due to the location and temperatures, etc.....

I recorded 13,131 kWh of heating and 2,934 kWh of hot water from 1.3.20 to 1.3.21 (including the last, somewhat colder winter). However, the penultimate firmware version had a problem with the W-meter. I will verify that again for plausibility. Because the consumption was 2,967 kWh, and I still can’t quite believe an annual performance factor of 5.4 with the Nibe F730 (yes, I may have optimized a bit too much). KfW70 semi-detached house with 146 m² living space

Something doesn’t quite add up, I have 250m2 and only about 800kw more. Either your heat meter is showing too much or you misread something.

Something doesn't quite add up, I have 250m2 and only about 800kw more. Either your heat quantity meter is showing too much or you misread something.

This is directly from the heat pump log files (10s data series). The electricity consumption comes from the meter history. But as I said, regarding the firmware that was installed from August to March, it states:

The basic configuration of energy flow meter BF1 went wrong in v.9089R9 which meant that the energy measuring was faulty. Corrected.

I will look into that again. Since this is an exhaust air heat pump, the incoming air (approx. 800,000-900,000 m³/a) also has to be heated. And the large gable wall is often exposed to strong wind. The room temperature is usually around 22.5 °C.

Second night without heating. All good. No one is cold. Here are the temperatures from the ground floor over 24 hours and outside. On the ground floor, it is 0.3 degrees colder than yesterday at the same time because we dropped below zero outside last night.

Upstairs it is currently 21.3 degrees

Would not be worth the few euros to me. The slightly warm tiles were already very pleasant in the bathroom this morning. The night was very cold again with minus 4.