Sunday, November 4, 2007

Eco Fan

Object : Save Energy, Save the Environment.

The Eco-Fan
Eco - Fan is a soundless, powerful ( up to150 cfm ) fan that stands on top of your woodstove to help distribute warm air throughout your house but doesn't use electricity! This environment friendly freestanding heat-powered Eco-Fan is designed to improve the efficiency of a wood stove by circulating the warm air produced by the stove. When placed on top of a heated surface, the Eco-Fan generates its own electricity. Temperatures of operation range from 150 degrees to 700 degrees Farenheit. The Eco-Fan does not use any batteries or external electrical connections.

The fan has a thermoelectric module which acts as a small generator to power the fan's motor. When this generator module experiences a heat differential between its top and bottom surfaces, it creates electricity. The bottom surface of the module is heated by the wood stove, while the top of the module is kept cool by the fan's top cooling fins. The speed of the fan varies with the stovetop temperature; on average.

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