I use an X10 system for this. You need an "appliance module" which you
plug in where the fan plugs in, then you plug the fan into it. You plug an
X10 controller or timer whereever you want in the house. The controller
sends a signal through the powerline to the module, which turns the fan
on or off. Google "X10" for lots of sources. Radioshack sells the same
stuff with their own name on it.
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