Find the right fan for every room.

Counterclockwise when you look up at it, on medium or high, so it pushes air down and you feel a breeze. In winter, switch it to clockwise on the lowest speed. The surest check is the breeze: in summer mode you should feel air moving down on you.

Go by floor area: up to 75 sq ft takes a 29–36 in fan, 76–144 sq ft a 36–42 in fan, 144–225 sq ft a 44 in fan and 225–400 sq ft a 50–54 in fan (ENERGY STAR's chart). Rooms over 400 sq ft need 56 in or larger, or two fans.

The blades must be at least 7 ft above the floor, and 8 to 9 ft is ideal. Keep them at least 8 in below the ceiling and the blade tips at least 18 in from the nearest wall.

Yes, with a low-profile (hugger) fan that mounts flush to the ceiling, as long as the blades still end up at least 7 ft above the floor. On ceilings under about 8 ft, check how far below the ceiling the blades sit before you buy.

DC fans use far less power, usually have more speeds and tend to run quieter. AC fans cost less and keep things simple. DC fans have more electronics, so check the warranty on the controls.

Very little. The median ENERGY STAR certified 52 in fan uses 3.4 W on low and 28.6 W on high: about half a cent an hour on high at the July 2026 US average price of 18.31 cents per kWh.

Usually because of loose blade screws or brackets, a mounting bracket or downrod that isn't seated properly, or blades that are out of balance. Tighten everything first, then balance the blades with the kit that comes with most fans. If the box or mount is loose, stop using the fan.

Fans with DC motors and smooth blades tend to be the quietest. In Consumer Reports' lab tests, most of the noise on high came from moving air rather than the motor, and the Minka-Aire Light Wave ranked first overall.