Clean out your dryer exhaust duct at least once a year. You may think it’s enough to just clean out the lint catcher in your dryer each time you use it. However, lint in the exhaust pipe that leads to the outside can get clogged over time and cause a fire hazard. Rigid sheet metal ducting is best. To clean it, loosen the clamp and pull the ducting off the back of the dryer. Remove any clumps of lint from the tubing and the hole in the back of the dryer. You can carefully use a coat hanger to remove any large clumps that you are not able to reach with your hands. Vacuum all the small lint. Then, reattach the exhaust tubing to the dryer.