>I think the aversion to most air heat pumps is that they may hate blowing air. I know that Swedes generally don't like forced warm air heating. I assume the Dutch are similar, but I could be wrong.

It's mainly because construction companies cheapened out when they installed heatpumps in newly build houses. Undersized heatpumps hurt their reputation a lot.

And in existing houses you are looking at a 25k investment, plus a increase monthly electricity bill just for having more than 35A single phase.