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Bathroom Exhaust Fan Installation


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Summary: This article shows how to install a bathroom fan. A great home improvement is adding a bathroom exhaust fan or upgrading you existing unit to a quiet low noise bathroom exhaust fan. Your options include a heat lamp to help with warm up those chilly mornings.

Electrical Wiring Considerations for a Home Bathroom Exhaust Fan

Benefits of Installing a Bathroom Fan:


Helps to eliminate odors and steam which contribute to mildew and bring warmth to a cold bathroom.


Optional units to consider:

Heat Lamps - (1 or 2 lamps) Heat with Blower - (will require a separate circuit)



Install a bathroom fan and
warm up on those chilly mornings!

Installing a bathroom fan
with an optional heat lamp.

Lighted Bath Exhaust Fan

Steps to install a bathroom fan:

OPTION: Upgrade your existing bathroom exhaust fan to a Heat Lamp Exhaust Fan.
Replace the noisy worn out exhaust fan with a unit that provides additional warmth on those cold mornings.
REMEMBER: Safety FIRST - Never Work On Energized Wires!
PARTS POWER SOURCE PROCEDURE DESTINATION
Safety

Identify and

Shut Off the Circuit

Lock Out & Tag Off

at Power Source

Use approved

wire connectors
Power

Existing Light Circuit

Install Romex

Controlling  Switches
Volts

120 volt

-

120 volt - 15 amp Rated Devices
Amps

15 or 20 amp

Match the Existing

Wire  Gauge

Bond the

Ground Wires
Wire

Romex

14/2 or 12/2

Use Romex Fitting

or Plastic Bushing
Box

1 Gang Switch Box

-

2 Gang Plastic

Cut-in box
Switch

Single Pole

-

2 Single Pole

Switches
Device

Use Stud Finder

to Locate Ceiling Joists

Locate
bathroom exhaust fan unit in open ceiling joist bay

Example:
Broan Model 162
bathroom exhaust fan
Venting

Check Size of Vent Fitting

Install Flex Duct

and Tape Joints

Route Hose to Outside

Ridge Venting

or Side Vent Adapter


Install a bathroom fan - the Basic Procedure:

Locate power, install box and switch, locate and mount bathroom exhaust fan unit and vent.

IMPORTANT : See Special Instructions about Bathroom Fan Venting

 

Installation Pictorials Summary:

Prep

 Broan Exhaust Fan exhaust fan trim plan the opening cut in switch box

Rough

In

 Cut in opening exhaust vent flex exhaust fan flex duct switch box

Install

 painted opening mounted heat fan cover spring exhaust fan unit trim

Finish

 GE Heat Lamp heat lamp trim single pole switch mount switches
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