I plan on installing a Miele heat-pump dryer at some point … the main issue I have in my way-too-complicated space (in NYC) is the controlled venting of that and a potential hybrid water tank in summer/winter. In a small apartment the heat-sucking action becomes a major factor. Great in summer, far less than great in winter.
You may have seen this other post. My energy anxiety is really compounded when seeing how they do things in Switzerland & Germany. Why can’t my fridge heat my water!