Fire hazard of exhaust fan with heating bulbs in bathroom?
Aside from the kitchen, I would say the bathroom is one of the most likely places for things to catch fire.  You have:


Water and electricity (never a great combination).
Curling irons and hair dryers (often cheaply made &amp; get very hot)
Lots of flammable things (paint, wallpaper, drywall, cabinets, towels, etc.)
Things that go boom (hair spray, air fresheners, other aerosols)