Thermoelectric fan: Fan runs off of hot and cold water.

Thermoelectric Converter: temperature differential runs fan and motor. This thermoelectric converter is basically a fan and motor electrically driven by a thermocouple that has one leg in cold water and one leg in hot water. The thermocouple in this demo is actually a Peltier semiconductor device run in reverse. (The Peltier device is usually set up so that a current flowing through the device causes one side to get cold and one side to get hot. In the reverse situation, making one side hot and one side cold causes a current to flow.)
UCB Index: 
D+70+6
PIRA Index: 
5E50.60
Demo Diagram: 

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