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Haven’t Germans embraced air-to-air heatpumps? They work great as ACs
No, heatpumps up to now have been primarily used to heat buildings and thus are almost exclusively of a air-water type.
Reason for this is also the subsidies that are apparently mainly available for this type.
Also classical heating systems still dominate, partly because most people in Germany live in rented appartments. As the cost of heating has to be paid by the tenant, landlords have no real incentives to convert their buildings to more up-to-date systems, which only the tenant would financially benefit from.
So what you see when walking through the streets are the air-outlet-hoses of crappy mobile monobloc cooling devices hanging out of the windows… (I own one myself).
Ah, that makes sense.
Btw: RV/Camping stores often sell ACs with two hoses. This prevents underpressure pulling hot air in again
I searched for those, but haven’t seen any available anywhere here in Germany any more, seem to have vanished from the market.
I heard that is an unintended side-effect of EU regulation regarding efficiency.
The two-hose-variants on paper have a lower efficiency, as for the efficiency calculation the pulled in hot outside air is not considered.
So the manufacturers just don’t bother selling them anymore here…