A self-powered fan for circulating air in combination with a heat source, said fan comprising: a first heat transfer member having a first heat transfer surface which rests upon, or adjacent to said heat source, an electric motor, with fan blades which operably create a first or warm air flow and a second or cooler air flow, a second heat transfer member having a second heat transfer surface, a thermocouple module located between said first heat transfer member and said second heat transfer member, wherein said thermocouple module is co-operable with said motor, said first heat transfer member and said second heat transfer member, so as to generate and provide electrical energy to said motor by a Seebeck Thermocouple Effect, wherein said first heat transfer member has a size, mass and shape so as to provide a temperature gradient between said thermocouple module and said heat source and thereby allow heat transfer from said first heat transfer member to said thermocouple module in order to generate electrical power for said motor to be able to effect rotation of said fan blades, while avoiding thermal damage to said thermocouple module; and wherein said fan blades are constructed and arranged to cause a portion of said second air flow to be drawn past said first heat transfer surface to effect a cooling heat transfer effect upon said first heat transfer member, characterized in that said motor is located on said first transfer member adjacent a side of said thermocouple module and remote from said second transfer member, whereby said motor does not hinder said second air flow, and wherein said thermocouple module provides more power delivered to said motor to provide enhanced rotational speed of said fan in order to avoid having said fan motor being thermally damaged by said first heat transfer member or said heat source. a first heat transfer member having a first heat transfer surface which rests upon, or adjacent to said heat source, an electric motor, with fan blades which operably create a first or warm air flow and a second or cooler air flow, a second heat transfer member having a second heat transfer surface, a thermocouple module located between said first heat transfer member and said second heat transfer member, wherein said thermocouple module is co-operable with said motor, said first heat transfer member and said second heat transfer member, so as to generate and provide electrical energy to said motor by a Seebeck Thermocouple Effect, wherein said first heat transfer member has a size, mass and shape so as to provide a temperature gradient between said thermocouple module and said heat source and thereby allow heat transfer from said first heat transfer member to said thermocouple module in order to generate electrical power for said motor to be able to effect rotation of said fan blades, while avoiding thermal damage to said thermocouple module; and wherein said fan blades are constructed and arranged to cause a portion of said second air flow to be drawn past said first heat transfer surface to effect a cooling heat transfer effect upon said first heat transfer member, characterized in that said motor is located on said first transfer member adjacent a side of said thermocouple module and remote from said second transfer member, whereby said motor does not hinder said second air flow, and wherein said thermocouple module provides more power delivered to said motor to provide enhanced rotational speed of said fan in order to avoid having said fan motor being thermally damaged by said first heat transfer member or said heat source.