by changing the polarity on the fan you can make the fan either push or pull the air. it all depends where you mount it and what exactly you want to do with it.

quick example......a house fan that you mount on your ceiling. most all ceiling fans have a switch on the motor casing to either push air (during those hot days) or pull air (during those cold days) either way will still move the air, although it's how the air moves is what you got to think about. hot air is always higher than colder air.

good luck!

Pitoon

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