On Sun, 21 Dec 2003 13:37:17 GMT, (barry martin)
wrote:

As the others have said, use a regular on-off switch. Incandescent
dimmers are not made for running motors.

Multi-speed fan controls that fit in a standard switch slot are
available at any electrical supply house. Externally, they look like
a dimmer, but have 3-4 detents for different speeds.

Barry