The EPA (Environmental Protection Agency) and the DOE (Department of Energy determined that geothermal heat pumps are the most environmentally friendly and cost-efficient way to heat and cool your home. Geothermal products shed no carbon dioxide, carbon monoxide, or other greenhouse gasses that can be harmful to the environment and your family. We know your highest priority is to keep your home and family safe and comfortable - now you can do that as well as help the environment. Geothermal units are truly a natural green way of life.