Anyplace but above the tub/shower. The best places would be about the commode or vanity. Center of the bathroom is another good location. In the place of the existing fan is the easiest. Use a combination fan heat lamp.
Heat lamps are often installed in bathroom ceilings. You can find a variety of fixtures from a single bulb heat lamp fixture to a combo heat lamp vent fan and ceiling light. Heat lamps require a timer on the switch so they will automatically turn off if left unattended.
over the toilet
Above where you stand or sit when you are wet and cold in the bathroom after bathing or showering. Not in the shower area itself.
This is old school technology and hasn't been done for years in construction. What used to happen, the bathroom being a small room didn't have much ceiling area. Centrally locating the heat lamp fixture to a good position sometimes positioned the fixture in the radius of the in-swinging bathroom door. On many occasions the door was left under the heat lamp with the lamp on and the door caught fire from the build up of heat from the lamp. The electrical code made a revision to keep the fixture out of the arc radius of the door and this made for some strange locations of the fixture. The installing of heat lamp fixtures has just gone out of favour. It has been replaced with in floor heating in bathrooms.
I installed mine just out the shower... where I dry off... its warm
Door (front door)
A ceiling heat lamp should be placed over an empty space so that it doesn't overheat anything in the room. Putting the heat lamp over the shower rod could start a fire and over a toilet seat could make the seat too warm and burn someone.
You sure can, it's been done, and the bathroom didn't blow up, the bathroom was just extremely bright Some sockets, though, do have a maximum wattage and/or a maximum heat tolerance that needs to be followed to avoid the risk of fire in the wiring and ceiling. It won't blow up, but you might start a fire. Heat lamps should have a porcelain socket and heat resistant insulation.
You can use a heat lamp or a bathroom towell to wrap them in.
One can install a bathroom heat lamp remove the existing fixture, open up the junction box, and connect the necessary wires together with that of the heat lamp, neatly tuck them away and close. One can find more detailed information on these from: eHow.
The heat lamp would be installed where it is needed. The only place the lamp is not permitted to be placed is over a doors swing radius. This is in the electrical code to prevent a door that is left opened and in a position directly under the lamp. The heat from the lamp has the ability to raise the temperature of the door to its combustion point and set it alight.
Are they ALL flickering or just certain ones? This happens most often with ceiling mounted lights due to the wires burning up from the lamp heat.