drop ceiling tile fan sa-398 (fan for drop ceiling installation only) 3-speed master - remote control included alaska this innovative patent pending ventilation system was specifically designed for drop ceilings. this is a unique alternative to conventional “downrod hanging” ceiling fans. the tile fan is designed to fit into standard 24×24 drop ceilings framework. unlike conventional ceiling fans, tile fans can be quickly installed – to mount, simply remove existing tile and drop the new tile fan into the 24×24 grid frame. since tile fans weigh only 12 lbs, there is no need to re-enforce the ceiling framework as long as ceiling framework meets installation standards and city building codes.