U.S. Department of Energy - Energy Efficiency and Renewable Energy

Geothermal Technologies Office

Geothermal Heat Pumps - Heating Mode

In winter, fluid passing through this vertical, closed loop system is warmed by the heat of the earth; this heat is then transferred to the building.

  • Heating Mode Animated Slide (PowerPoint 493 KB)
    Note: To view this animation in PowerPoint use 'Slide Show' mode.
Simple illustration showing the transfer of heat from the ground to a building space to provide space heating.
Simple illustration showing the transfer of heat from the ground to a building space to provide space heating. Simple illustration showing the transfer of heat from the ground to a building space to provide space heating.