1. If a fan is to be installed outdoors, it must be UL-listed and approved for the application. Other safety features, such as ceiling support and secure mounting, must also be considered.
2. There are two kinds of UL listing ratings for outdoor electric appliances. Appliances rated for damp locations are meant for covered areas that are not directly affected by rain, but do experience a degree of moisture. Those with a "wet" UL listing are for use in areas that come into direct contact with rain.
3. Most screened-in porches, patios, and indoor pool rooms are considered damp locations. Gazebos and open patios are considered wet locations. If you are not sure which category your space falls into, consider a wet-rated ceiling fan to avoid any potential problems.
4. The size of a ceiling fan is measured by the diameter of its blade sweep, and not the actual length of the blades. Generally speaking, most fans are between 50 and 54 inches from blade tip to blade tip, although the actual blades themselves may measure up to 21 inches in length.
5. For the life of your fan and the safety of your family, make sure all components of any outdoor ceiling fan are weatherproof. Never employ an indoor ceiling fan for outdoor use.
6. If you are unsure whether your ceiling offers enough support for your fan, it is best to consult an electrician.
7. The differences between a four-blade fan and a five-blade fan are mainly aesthetic. Five-blade fans actually move less air than four-blade fans, as the additional weight slows down the motor.
8. Narrow ceiling fan blades create better air flow than wide blades. Also, the heavier the blade material, the better air is circulated.
9. The efficiency of a fan is determined by the amount of energy it consumes balanced against the volume of air the fan moves. A small, low-wattage motor may use little energy, but it will also move very little air, resulting in a very inefficient fan.
10. The amount of air a fan circulates is actually determined more by the pitch of its blades than how many blades it has. Blade pitches range from 8 to 15 degrees, and the higher the pitch, the more air the fan circulates at slow speeds.
11. For optimum safety and performance, you should install your ceiling fan at least 7 feet from the floor. Additionally, blades should sit at least 24 inches from the closest wall, and should be free to spin unencumbered.
12. For optimum convenience, outdoor ceiling fan models are available that feature remote controls. Some models feature sensors that can detect changes in the air temperature and turn on or off accordingly.