Turing your backyard dirt into Dollars!!
Waterless Direct Exchange Geothermal Heat Pumps
(11) Waterless Geothermal Installed in The Breakers’ and Featured on This Old House - YouTube
(11) Waterless Geothermal Winter Heating Cycle - YouTube
(11) Waterless Geothermal Summer Cooling Cycle - YouTube
(11) Waterless Geothermal Cycle - YouTube