In alt.home.repair, on Tue, 15 Sep 2020 17:13:13 -0500, Dean Hoffman
wrote:

I was watching the Dirty Jobs show with Mike Rowe the other day.
He was helping well drillers sink wells for a heat pump system for
something like an old folks home.
It occurred to me that I haven't heard of any for plain houses. Too
expensive?
By the way he can sing.
https://www.youtube.com/watch?v=peH8UGccbXA

I've been to a house in Dover, Del. with geothermal heating and cooling.
Not a cheap h ouse but no mansion either. T hey seem to have removed
two new AC compressors in the process of installing the geothermal.