Whether it’s a winter cold snap or a summer scorcher, the ground five feet below the surface maintains a constant temperature year-round. This constant earth temperature is higher than average winter temperatures and lower than average summer temperatures.
Geothermal systems use this difference in temperature to transfer heat between your home and the earth with two key parts: A heat pump inside your home (usually in place of your traditional system) and buried pipe systems (called ground loops) circulate heat transfer fluid. During summer, the geothermal system draws heat from the air in your home and transfers it to the ground. During winter, it draws heat from the ground and transfers it to your home. Fascinated to learn how it works? Listen to our episode with Kathy Hannun, co-founder of Dandelion Energy – heat without fire.