ᐅ Air-to-Water Heat Pump: Current Consumption and Data

You’re not posting any logos, you have USB access, right?

tomtom79 schrieb:

You’re not posting any logos; you have USB access, right?

Yes, I already did. But nothing could be derived from it. I’m not sure whether it’s related to the heating system or the building envelope. Sometimes I wonder how quickly the supply and return temperatures drop when the heating is off for a few hours.

Bookstar schrieb:

850 kWh in January for 200 m2 (2150 ft2). Nearly 30 kWh per day without household electricity. Unfortunately, this shows my heat pump is still not running optimally.

How much was the heat output? That doesn’t sound too bad.

For me, it was 685 kWh of heating electricity for a surprisingly high 2740 kWh heat output (COP 4.0), also around 200 m2 (2150 ft2).
What are your experiences? In the first year of building with solid construction, did you actually have higher heating costs due to building moisture, or did it remain relatively stable in the following years? I had actually expected a somewhat lower heat demand for the KfW55 house.

I may be repeating myself, but to establish at least a minimal basis for comparison, the square meters and the amount of heat generated are important.

Electricity consumption alone doesn’t say much.

@Ötzi Ötztaler
It also depends on the room temperatures.
Are you staying within your heating load?

Bookstar schrieb:

850 kWh in January for 200 m2 (2,150 sq ft). Just under 30 kWh per day without household electricity.

January has also been the toughest for us since moving in.
Constantly cold, but mostly just below 0°C (32°F), which is when an air-to-water heat pump is least efficient. Plus, only 4 days of sun...
We used nearly 700 kWh of electricity. Last January it was 500.