Patent ID: 7821152

Claim:
An apparatus for heating a designated area comprising: a) an air duct having an inlet end and an outlet end, wherein said outlet end is disposed in the designated area to be heated, wherein said air duct is air tight; b) a wind producing devise being disposed internal said air duct for moving air from said inlet end to said outlet end; c) a wind collecting device being disposed internal said air duct down wind of said wind producing device for capturing wind from said wind producing device; d) an electrical generator mounted on and being driven by said wind collecting device for producing electricity, wherein said electricity may have varying frequency and voltage; and, e) a heat exchanger being disposed internal said air duct, wherein said heat exchanger has a concave shaped body having a plurality of air slots disposed in said body, wherein said air slots pass entirely through said body so that air can pass through and around said body of said heat exchanger, wherein said concave body is disposed in said air duct so that the opening into said concave body faces up wind, wherein a heating element is disposed in said concave body of said heat exchanger for receiving said electricity from said generator for heating the air in said air duct and the designated area.