If you are mounting a ceiling fan in a space with very high ceilings, select a model with a pole extender. If you are installing the fan on a low ceiling, select a flush mount model.
Choose the fan blade length according to the size of the space you wish to cool. The larger the room, the longer the blade size. Blade lengths are measured from the tip of one blade to the tip of the blade on the other side.
If you purchase an outdoor ceiling fan equipped with a light, make sure the light is also rated for outdoor use.
These fans use weather-resistant materials and are specially designed to keep moisture out of critical motor and electrical parts. Once the electricity is turned off and you've removed the existing light fixture, a support brace is attached to the electrical junction box.
Replacing this brace with the sturdier one supplied with your fan will ensure that your fan has proper support. It's best to install the fan blades before you hook the fan onto the bracket, to save time and aggravation.