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Blrja6040 t1_j4lepeq wrote

Reply to comment by [deleted] in How do non electric heat operated fans work? by ranman12953

What you are describing (and what OP is asking about) is actually a Peltier element. Aka thermoelectric effect.

Piezo electric is different and uses a quartz crystal to generate a brief electric current from a physical impact. This is the mechanism of many igniters used in gas BBQ grills and heaters.

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dr_reverend t1_j4lu1jb wrote

Yes but not quite. Peltier effect is using electricity to drive a temperature difference. It’s the Seebeck effect that is using a temperature differential to drive a voltage potential.

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