Our systems are designed to eliminate the use of water by extracting heat from the ground via use of refrigerant loops buried directly underground. The first prototype was installed in 1993 and the first production unit was sold in the fall of 1994. Several US patents for the design and method of operation were obtained at the same time.

Our systems are designed to eliminate the use of water by extracting heat from the ground via use of refrigerant loops buried directly underground. The first prototype was installed in 1993 and the first production unit was sold in the fall of 1994. Several US patents for the design and method of operation were obtained at the same time.

Our systems are designed to eliminate the use of water by extracting heat from the ground via use of refrigerant loops buried directly underground. The first prototype was installed in 1993 and the first production unit was sold in the fall of 1994. Several US patents for the design and method of operation were obtained at the same time.

Our systems are designed to eliminate the use of water by extracting heat from the ground via use of refrigerant loops buried directly underground. The first prototype was installed in 1993 and the first production unit was sold in the fall of 1994. Several US patents for the design and method of operation were obtained at the same time.