ᐅ Air-to-water heat pump, what is your energy consumption?

Hello,

could you please share your annual electricity consumption along with information about your living area, building envelope (KFW70, 55, etc.), and whether the structure is solid masonry or timber frame?

I just calculated that the air-to-water heat pump will cost us €1300 (approx. $1400) more than the condensing gas boiler with solar. I’m curious about your consumption figures. I’m not really a fan of heat pumps, but with one, we could save on the ventilation system to meet KFW70 standards. If we go with a gas condensing boiler and solar, a ventilation system is absolutely necessary.

What would you do? We keep reading about high electricity bills, so we were actually leaning towards gas for our KFW70 new build (about 200m² (2150 sq ft)).

I do have a brine-source heat pump, but a properly designed air-to-water heat pump would probably have roughly the same running costs as a gas condensing boiler. Maybe (it really depends on the details!) about €50 more expensive in consumption, but you wouldn’t need a chimney sweep.

Take a look at the Viebrockhaus forum. Residents of Viebrockhaus houses regularly share their consumption data there – similar tables can also be found in the pink forum.

xycrazy schrieb:

I just calculated that the air-to-water heat pump will cost us 1300€ more than the condensing boiler with solar.

More expensive in terms of initial investment, ongoing maintenance, or what exactly does that amount include?

Regards, Bauexperte