What is it that would make it so expensive? (edit: ah you meant the renovation not the heating system) A good heat pump for a large house is sub €10k. Of course you need some way of distributing the heat in the building too (water radiators or in floor heating). Is it that the houses completely lack radiators? Retrofitting a heat pump to a home that has a water radiator system and with fossil burning boiler is cheap.
I’m replacing my 20 year old heat pump now with a new one and it’s around €8k installed. At the same time I’ll tear out the floors and radiators (replacing the floor anyway) and replace with heated floors. This costs at least another €20k but isn’t really necessary - that’s just a luxury when changing the floors anyway.
Good thing around here really old houses have 200mm insulation and newer ones have 300+ required by the code. Regulation also bans fossil heating or direct electric for any new construction or major rebuild.
I’m replacing my 20 year old heat pump now with a new one and it’s around €8k installed. At the same time I’ll tear out the floors and radiators (replacing the floor anyway) and replace with heated floors. This costs at least another €20k but isn’t really necessary - that’s just a luxury when changing the floors anyway.
Good thing around here really old houses have 200mm insulation and newer ones have 300+ required by the code. Regulation also bans fossil heating or direct electric for any new construction or major rebuild.