Maybe it is my 'sheltered' region, but I'm hard pressed to find ANYONE that knows much at all on GSHP, minisplits, inverter compressors, etc.
I guess that paper really made me think about how little/slow change comes about.
I would guess with improvments, marketing, and more Eco awareness, the inverter/ductless type of system could destroy the old FAU/duct systems long held ground. With R22 phase out, these new systems have a real chance, not just retrofit, new housing also.
Well, after we sell the ones that are empty.
I liked the fact they were HACKING. Made me think of this site.
The GSHP industry could be a lot farther along than it is.
Cheers