Geothermal systems heat and cool your home in an even fashion. they are clean, safe, and quiet. The geothermal systems are all-electric so there are no flames, flues, or fumes. any home with a central duct system is a candidate for a geothermal system. There are a variety of ways to install an earth loop, even small loops for confined areas. The piping is underground or underwater, so there is little maintenance required. Occasional cleaning of the heat exchanger coils and changing the air filters are about all that’s necessary to keep the system in good running order.