Tuesday, February 20, 2007

A Real 'Green' House: No Heating Bill for 25 Years

The design involved installing a special subfloor that can be filled with water heated by solar collectors or a backup fossil fuel system for use on cloudy days. This creates a massive heat storage system that allows the entire greenhouse floor to act as a primary heat source and heat exchanger.

LiveScience.com - A Real 'Green' House: No Heating Bill for 25 Years

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