Cut pieces of a 2 foot x 4 foot board to fit between the joists blocking off the fan from the insulation.
How to install a bathroom wall heater.
Remove the 4 inch flexible air duct and then take off any fasteners securing the old fan to a ceiling joist.
For all other types of heaters though and for all electrical work in the bathroom hire a licensed electrician.
If possible invest in one that is high enough to be difficult to touch.
Installing a bathroom wall heater.
Wall heaters need a dedicated circuit so you will need to install a new circuit breaker at the main panel and fish cable to the location of your wall heater.
Resecure the electrical box in the wall replace the outlet and install the cover plate.
Attach wood pieces with screws.
Completely remove the old exhaust fan.
You just place them away from water plug them into a wall socket and let them heat the room.
Using a portable heater in your bathroom has many advantages one of which is not having to install them.
Go through the attic to the bathroom fan and remove the electrical cable and clamp from the old exhaust fan.
The next step in your bathroom fan installation is to attach the fan enclosure to the joist with screws.
Do not try to save money by following the instructions on a how to.
Cut or push back the insulation leaving a 6 inch gap between the unit and insulation.
Bathroom ceiling heaters or heaters that are installed a little high up on the wall are much safer than those close to the floor.
Moreover you should only install the heater on the ceiling if it is safe to do so.
Keep it away from places exposed to steam.
Leave the electrical cable for use on the new heater.
Install the supplied mounting brackets to the wall then click the heater onto those brackets.
If you buy a portable bathroom heater and if an electrical outlet is conveniently located nearby you can install it yourself.
Strip the other end of the new wire and splice the conductors from the power supply to the appropriate wires in the heater.