Jon Morr
Tech Blogger at - Gadgets Review

Tech Blogger

The bathroom exhaust fan plays a pivotal role in moving the moisture, bad odors, and heat out and allow fresh air to enter. If your old exhaust fan is not working, therefore, you need to replace it with a new one. A bathroom having no exhaust fan is just like a symbol of hell. If there is no way to get the moisture out then it causes many problems like blisters of paints, mold, and mildew.

The risk of mold increases in the following conditions:-

•           If your roof leaks.

•           It grows on metal pipes.

•           Wet things like clothes can cause it.

When you need to replace an existing fan that is not working, you need to replace it with a new one on the existing switch, wires, and place. It is time to purchase a fan that is the same size as your existing fan. CFM (cubic feet per minute) and the formula to calculate CFMis as follows:

Length x Width x Height= Cubic Feet per minute rating

The noise that the fan creates is measured in a unit called sones. The latest models of bathroom exhaust fans range between 0.4 and 7 sones by which you can choose the exhaust fan accordingly.

If you are replacing the exhaust fan then fix it in the same place where the older one exists, on the other hand, install the exhaust fan in the middle of the bathroom that is the advice of the professionals.

Tools you will require for replacing the exhaust fan are as under:-

  • Power drill
  • Screwdriver
  • Pliers
  • Gloves
  • Duct tape
  • Screws
  • Pencil or caulk
  • In some cases cement
  • Nails
  • Replacement fan
  • Ladder
  • Portable light


If you are inexperienced then hire an expert electrician for this work. The replacement of a bathroom exhaust fan needs to remove the old one and clean the rims. Use these steps if your bathroom exhaust fan is going right outside. If not, then you will require searching out where the duct pipe is going before starting the replacement process.

Most exhaust fans that do not go right outside, head up into the attic. If that is the case for your house then you will require inspecting the exhaust fan hole by removing the insulation first to see whether the hole will fit your new bathroom exhaust fan. After that, you will require to simply place the exhaust fan in place and secure it with screws or nails depending on the model you have purchased.


You must keep your bathroom exhaust fan neat and clean for the best result. If you will not do the same, your exhaust fan can become useless and it will not work properly. So keep an eye on this.If you keep maintaining the exhaust fan, it will run smoothly and you will not find any problem in it.

Jon MorrTech Blogger at - Gadgets Review

Tech Blogger

Leave a Comment