How to Install Bath Ventilation Fans

Bath ventilation fans can do many things. They can help to keep wall paint from peeling, prevent the warping of wood and reduce or eliminate the problem of mold forming around areas that are frequently exposed to moisture. While most modern homes are constructed with bath ventilation fans already in place, you may have the need to replace a broken fan.

Difficulty: Moderate

Instructions

Things You'll Need:

• Basic carpentry tools
• Protective eye goggles
• Dust mask

1. Remove the older bath ventilation fan from the wall. Disconnect the wiring and dispose of the entire unit.

2. Connect your fan's housing unit to your home's structure. See if you can connect the housing to a ceiling joist for extra security. You may need to install wooden braces to make sure your fan's housing can be installed completely and safely.

3. Insert your new fan into the housing unit. Connect it by the manner specified in your fan's instruction manual. This might include screws or plastic fasteners.

4. Connect all electrical wiring. Consult your instruction manual or ask advice from a professional to make sure you're performing this task correctly. Connecting the electrical wiring is the most complicated and potentially dangerous step in the process.

5. Install any decorative casing or unit cover that came with your fan. While these casings might not play any functional role, they'll make your bathroom fan more attractive.

6. Connect the fan to air ducts. These ducts will be used to funnel the moist air out of your bathroom. Exhaust ducts should harmlessly deposit the moist air outside.

7. Test the functionality of your bathroom fan by turning it on. Listen for any unusual sounds, such as grinding or squeaking, as this can be an indication that a mistake was made during the installation process.

Tips & Warnings

• Your bathroom ventilation fan may have unique installation directions. Make sure to compare these broad steps with specific guidelines included in your fan's installation manual.
• If your home was constructed without bathroom ventilation fans, you may need to contract the help of a professional electrician. It's very difficult to install a bath fan where one did not previously exist. You'll have to run all new electrical wiring through your bathroom walls.
• Make sure to turn the power off in your bathroom before attempting to install a bathroom ventilation fan. This will help to eliminate the risk of accidental electrocution.
• Always wear protective goggles while performing home maintenance tasks. Consider wearing a dust mask during the installation process.