How To Install A Bathroom Exhaust Fan

Last Updated on December 2, 2019 by Terry Ohara

If you’ve got an exhaust fan for your bathroom, you have made the right choice since it is very beneficial and you will see that it will keep the moisture and steam away from your bathroom. Which in turn will protect your bathroom paint, fabrics, towels, curtains, windows and doors, by keeping them moisture-free which will result in less mold and mildew. On top of all that you will get rid of all the bad smells that may linger in your bathroom.

Installing an air exhaust fan for your bathroom may look a little complicated and if you don’t know what you are doing, it can surely get very complicated, especially because you will have to stay on a ladder for an extended period since these need to be installed in the ceiling. Before starting it is mandatory to check building codes in your area and verify it with your local permit office. Also before you begin with your home project check to make sure that you have one of the best bathroom exhaust fans, make sure to have power or an according to the electrical line and venting to the outside. If you have no experience working with electricity and lines it is better to leave it to a professional, but if you have a little know-how you can do it yourself. For venting, you can use flexible tubing which will vent the intaken air outside.

First off you need to find the power source and establish it properly and before you start to check your local electrical code, but most of the time you will be allowed to share your bathroom lighting circuit with the fan, so you can connect them with the same wiring, meaning you will activate the fan when you turn on the light which is pretty neat.

As you would have expected the air from the exhaust fan must exit somewhere so you need to run a duct from the fan through the roof, or to a wall, depending on your situation, however, a wall would be a better choice since you do not risk any roof leak.

Next up cut the exterior vent location depending on where you have chosen the location and be careful when cutting and use proper tools. Reciprocating saw does a great job for the most surfaces and make sure to cut the interior opening as well to the correct dimensions, measure twice cut once, this is important as you can ruin the whole project. After that attach the fan to the cut hole and fit the electrical wiring properly and without putting your safety at risk. Route the flexible tubing to the already attached exterior housing, and after a quick check if you have forgotten something you should be all done.

If you have done everything correctly, turn the circuit breaker back on, turn the switch on and check it is working.

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