Does a geothermal system require a lot of maintenance?
Relative to fossil fuel systems NO they do not require a lot of maintenance. A properly engineered and installed closed-loop geothermal pump requires very little maintenance aside from regularly maintaining the air filter and the air blower assembly. Water coil maintenance is recommended on open-loop installations as water quality can greatly affect the heat exchanger efficiency. Annual preventative maintenance can ensure optimum heat pump efficiency for years and years of problem free geothermal home heating and air conditioning as well as hot water heating.