Geothermal HVAC systems have come a long way since Chaudes-Aigues, France tapped into natural hot springs to create one of the world’s first recorded heating networks. Today, the general idea of using natural sources to heat and cool homes and offices is combined with modern technology. Modern geothermal HVAC systems work by taking advantage of the earth’s consistent, moderate temperature. Geothermal HVAC technicians install a piping system that circulates water in a loop to exchange heat between your home, the ground source heat pump, and the earth. This provides geothermal heating, cooling, and hot water at remarkably high efficiencies. Even though geothermal heating and cooling systems might have high installation costs, these systems return dividends in energy cost reduction, green tax breaks, and longer lifespans.