Comment by Y-bar

Yet it did not feel very cheap to me. The price of the pump had increased from 4800 only a year earlier due to the war in Ukraine.

There were a number of steps I had to go through. First I had to file for permission at the County Office, where they verify that drilling in the area is acceptable and that the intended pump follows regulations with respect to cooling media, and that the drilling company was certified to drill for my needs. It did cost about 70 euros.

I needed effective zero plumbing work in the house as it was already prepared to accept heating from a pump like that. Perhaps that is one of the major costs in USA?