Stats for Norway, they are nearly all air con units, not the air to water the Goverment want everyone to have.
In the period 1987 – 2020, almost 1.4 million heat pumps were sold in Norway.
Air-to-air approx. 1.25 million
Air-to-water over 50,000
Brine-to-water over 55,000
Ventilation heat...