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

1.10-28.2
approx. 2500 kWh

FF2677 schrieb:

1050 m³ (cubic meters) of gas => approx. 400-450€

Yes, gas is currently inexpensive.

What do you pay annually for chimney sweeping and maintenance?

October 1 to March 12 = 2988 kWh for the heat pump including the internal electric heating element. It worked well in Austria at temperatures below -15°C (5°F). Here with us, it was by far the coldest winter (January and February) in years.

Chimney sweeping only every 2nd or 3rd year (nothing last year).
You will need to do maintenance on all systems anyway...

Heat pumps require no maintenance. Or do you maintain your refrigerator? :-)

Zaba12 schrieb:

I have little sympathy for the energy consumption :p (unfortunately, you wrote it yourself).
I hope I can report similar consumption next year.

I find the COP of 4.2 quite low, especially since the probe supply temperature is really good (currently about 6°C (43°F) at the end of the cycle, and this is near the end of the season). I have a neighbor with an inverter heat pump and a probe who is well above 5.
That aside, we are here in NRW. Of course, we also had an unusually severe cold snap, but for our standards. In the end, you have to consider the building’s heat demand.

FF2677 schrieb:

@guckuck2: do you remember the additional cost of geothermal compared to an air-to-water heat pump?
Is photovoltaic still financially worthwhile with geothermal? (financially, not ideologically :p)

My memory is fading, but it was in the range of about 1000–1500€ (after subsidies).

I also have photovoltaics, and they are financially viable on their own. Self-consumption is the cherry on top.
They certainly contribute to the heat pump’s use, although I can’t say by how much, especially since demand is relatively high and solar yield rather low in winter. Outside the heating season, it is safe to say that a large part of the hot water production is covered by photovoltaics.