Dry Clothes Faster with a Dryer Duct Booster

Suck out damp dryer exhaust fast

Clothes won't dry as fast if the exhaust duct is long or has lots of turns, but you can boost dryer performance considerably with a duct booster fan.

By the DIY experts of The Family Handyman Magazine

Cut the duct and install the booster

If it takes forever for your clothes to dry, the problem could be the dryer duct. A dryer vent duct that's too long reduces the airflow and wastes energy. Most dryer manufacturers recommend a maximum duct length of about 25 ft. But the catch is that every bend in the pipe is equivalent to about 5 ft. of straight pipe. It adds up quickly.

Dryer duct boosters can increase the airflow in a duct and help overcome this problem (search for “dryer duct booster” on the internet or check with appliance dealers). They switch on automatically when the dryer kicks on, using an electric fan to speed up the airflow through the duct, which increases air flow through the dryer.

Mount the booster to the wall or ceiling at least 10 ft. from the dryer and in the path of the existing vent. Connect the vent to the booster and plug it in.

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Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

  • 4-in-1 screwdriver
  • Corded drill
  • Tin snips

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

  • Metal duct tape
  • Dryer duct booster