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55_peters t1_j4mbhm9 wrote

Reply to comment by raptorphile in How do non electric heat operated fans work? by ranman12953

I bought one out of idle curiosity a few years ago. I don't think they make any difference - they don't pull enough air through.

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cara27hhh t1_j4oex7f wrote

fans are weird, the propeller design and material makes a lot of difference and so you can get some that claim to be the same wattage, measure at the same wattage, but that move different amounts of air

I imagine it only gets more complicated when you're trying to combine that with an unknown amount of power generated from an odd method

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