Brett Reilly, Dr. Energy, explains how his innovative “No Energy Bill Home” is able to leverage the ambient temperature of the Earth for geothermal year-round heating and cooling.

The crawl space under the house has no vents and is conditioned. It has R-10 against the walls and a vapor barrier on the bottom.  It also has an air duct into the house for heating in the winter.  The crawl space is 50-55 degrees year round for cooling in summer and heating in the winter.