GeoThermal vs GeoExchange, what’s the difference?
These terms are often used interchangeably, particularly in the context of heating a building. In reality, the term GeoThermal implies the direct use of heat generated at great depths below the Earth's surface.
What ends up being called GeoThermal in the building heating industry is more aptly referred to as GeoExchange, which is a central heat pump based heating/cooling system that pumps heat into or from the ground or a body of water. These systems are also called Ground Sourced , Water Sourced or Earth Coupled Heat Pump Systems.
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