Geothermal/ground source heat pumps work by using the earth's moderate ground temperature to heat and cool your home or business. They can be placed in new buildings or used as retrofits in existing buildings.
Installing a geothermal/ground source heat pump can cut your home or business heating and cooling costs by 50% and provide hot water free or at substantial savings. It also lasts longer than conventional systems, better for the environment, has no exposed, noisy outside units and has fewer mechanical components, making them more reliable and less prone to failure. For more information about this system, visit the International Ground Source Heat Pump Association's website.
You can also get information on heat pumps from the Iowa Geothermal Association.