>-----Original Message-----
>From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] 
>Sent: 17 February 2005 19:46
>To: Microcontroller discussion list - Public.
>Subject: Re: [OT] Heat Powered Fans
>
>
>> How do these fans work?
>
>Stirling engine?  Looks a little small for a Peltier-motor combo.
>
>The massive fins on top would certainly help to create a good 
>temperature differential to drive it.
>

It mentions conversion of thermal energy into electrical energy so it's
almost certainly a thermo-electric device.  I doubt they would be able
to manufacture and sell a stirling engine/generator combination for that
price.

Regards

Mike

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