But like it says on the page, because air source heat pumps have been getting a lot better they no longer sell the kits. There are a couple of individuals on YouTube who have used similar GSHP kits and had good success. The main challenge is that you need to dig 100ft of deep trenches per ton of cooling.
Edit: should be 300ft not 100
However, what I have found in the process is that for well insulated homes GSHP probably doesn’t make sense.
Originally I was considering buying a kit from this site: https://www.123zeroenergy.com/pricing/geo-thermal.html
But like it says on the page, because air source heat pumps have been getting a lot better they no longer sell the kits. There are a couple of individuals on YouTube who have used similar GSHP kits and had good success. The main challenge is that you need to dig 100ft of deep trenches per ton of cooling. Edit: should be 300ft not 100