4 ms·Exposed to the elements on a roof?by JamesSwift 3y agoExposed to the elements on a roof?RandallBrown 3y agoThe fans in air conditioners seem to handle the elements fine.dymk 3y agoCompressor fans are expensive, heavy, and energy intensive, so what exactly have we gained?jdmichal 3y agoThe fans in air conditioners also need a 3-inch x 2-inch capacitor to start.