Unlike air conditioners and heat pumps, geothermal systems are installed indoors, so they are not subject to wear and tear caused by rain, snow, ice, debris, extreme temperatures or vandalism. Geothermal systems have proven to be very reliable and require less maintenance.
• The greenest heating/cooling system available, geothermal energy has the most potential of any known energy source.
• To further increase geothermal energy use, the U.S. government is offering tax credits for new installations.
• You can also get information on state incentives for geothermal installation here.