geothermal heat pump
Defined in 2 places of the United States Code.
The term "geothermal heat pump" means a system that provides heating and cooling by exchanging heat from shallow geology, groundwater, or surface water using—
(A) a closed loop system, which transfers heat by way of buried or immersed pipes that contain a mix of water and working fluid; or
(B) an open loop system, which circulates ground or surface water directly into the building and returns the water to the same aquifer or surface water source.
Source
- 2020–present42 U.S.C. § 17195aThe Public Health and Welfare · Geothermal heat pumps and direct use research and development · in this section
The term “geothermal heat pump” means any heating or air conditioning technology that—
(A) uses the ground or ground water as a thermal energy source to heat, or as a thermal energy sink to cool, a building; and
(B) meets the requirements of the Energy Star program of the Environmental Protection Agency applicable to geothermal heat pumps on the date of purchase of the technology.
Source
- 2007–present42 U.S.C. § 17061The Public Health and Welfare · Definitions · in this title