Ground source heating can provide your house with clean, green, reliable heating and help you save 40-70 percent over traditional home furnaces. Occasionally referred to as geothermal heating, the supply system will tap the warmth stuck in the earth and makes use of an electrically driven heat to pump to circulate it into your house. Because ground source heating slashes the household carbon footprint up to 50 percent, a lot of people can easily make an application for grants and incentives to subsidize installation costs.