A slow fan speed in the winter will help move the warm air at the ceiling down into the living area. A more brisk speed in the summer helps your air conditioner seem more effective.
Ceiling fans are fairly easy and safe to install.
All you need is a basic knowledge of electricity and some basic tools. Ceiling fans are available in two general configurations. The first is a fan-only configuration. This configuration is generally the most inexpensive and provides the advantages mentioned above. The second configuration includes a light fixture that hangs below the fan.