[ice3]

>Hope that electric heating will still be legal.

Air source heat pump (split AC unit) is the way to go. Those things have efficiencies of 200-600%.

[atemerev]

I am renting my apartment in Switzerland, where split AC installations are prohibitively expensive ($3000 or more for a single unit) and usually forbidden by landlords.

[isbvhodnvemrwvn]

At this point finding a unit and someone to install it might not happen until 2024 in some places.