a fan with a ball-bearing motor for quality and longevity.
FAN CONTROLS It’s recommended that a bath fan run not only during but for 20 minutes after using the shower— and with the bathroom door closed. Many people still use an on/off switch for their shower fan. There are two obvious problems with this type of switch. Either people turn the fan off after showering, which leaves a lot of moisture in the air, or they forget and leave the fan on, possi- bly for hours. I have two daughters who would sometimes leave the fan on all day until I found it running when I came home after work. That’s a lot of heat or AC expelled from the house during the day! As a result I installed a fan timer that has a humidity sensor so it will turn on automatically if they forget or if the room’s humidity is too high. The best way to ensure that your bathroom fan has the time it needs to achieve proper air exchanges is through the use of a shower fan timer. Fan timers come in all styles, but I prefer the ones that are preset or allow you to set the fan at the time of installation. I have my fans set to 30 minutes, which covers a 10-minute shower and 20 minutes of run time. If the shower takes longer, I reset it prior to leaving the bathroom. Choosing and installing the best fan for your location is an important part of your bathroom remodel. A quality bathroom fan, properly installed will remove moisture and odors from your bath- room and will improve your indoor air quality. Remember to take the time to thoroughly understand your bathroom ventilation needs and to follow the manufacturer’s instructions as well as these best practices for installation proce- dures. The result will be FAN-tastic!
All joints are sealed with aluminum tape.
Here's the interior exit point where the duct terminates at the vent hood.