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Clothes dryer safety

If you have one or more
of these problems:

  • My laundry room seems hotter and more humid than usual.
  • My clothes take an unusually long time to dry.
  • My clothes are hotter than usual at the end of a drying cycle.
  • The damper on my outside exhaust vent hood does not open fully when the dryer is operating.
  • The outside of my dryer seems unusually hot.
     
 

Actions to take

  • Unplug the dryer, if you have a gas dryer, shut off the gas.
  • Inspect your duct system for air leaking, blockage and/or damage.
  • Inspect your vent hood from the exterior of your home for damage or blockage.

Possible solutions

  • Clean the dryer vent pipe of lint and debris. Most of the lint or debris built-up will be at the end of the duct connections. Imperial brushes can be used to clean these areas.
  • If the duct system or vent hood is damaged, replace them.
  • If the connections are loose, adjust them.
  • If your problem has not been solved, get your dryer checked by a professional.
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Do's & Don'ts

About ducts...

Do's

  1. To reduce the risk of fire, the dryer MUST BE EXHAUSTED OUTDOORS.
  2. Use only 4" rigid metal or UL-Listed flexible metal (foil-type or semi-rigid) ducting to connect the dryer to the home exhaust system.
  3. For best drying performance, rigid metal transition duct is recommended.
  4. If rigid metal duct cannot be used, UL-Listed flexible metal (semi-rigid) duct should be used.
  5. UL-Listed flexible metal (foil-type) duct should be used only in installations where rigid metal or flexible metal (semi-rigid) ducting cannot be used.
  6. Flexible metal (foil-type) duct must be fully extended with excess duct removed to avoid sagging and kinking.
  7. Flexible metal (foil-type or semi-rigid) ducting is acceptable only if they are accessible for cleaning.
  8. Total length of UL-Listed flexible metal (foil-type or semi-rigid) ducting cannot exceed 8’.
 

Don'ts

  1. Never install UL-Listed flexible metal (foil-type or semi-rigid) duct in walls, ceilings, floors or other enclosed spaces.
  2. Do not assemble duct using duct tape, screws or other fastening devices that extend into the interior of the duct. These fasteners can accumulate lint, creating a potential fire hazard.
  3. Do not use duct longer than required. Longer duct systems can accumulate lint, creating a potential fire hazard.
  4. Do not crush, kink or collapse duct.
  5. Avoid resting the duct on sharp objects.

About dryer exhaust…

Do's

  1. Exhaust vent hood must be installed at least 12" from the ground or any object that may be in the path of the exhaust air.
  2. Use caulking compound to seal exterior wall opening around exhaust vent hood.
  3. The exhaust vent hood should cap the vent system to prevent rodents and insects from entering the home.
  4. Before connecting replacement duct to the exhaust outlet of an existing dryer, make sure the exhaust port is clean and the exhaust vent hood is not plugged with lint.
  5. Provide an access to the exhaust system, especially at turns and joints, so system can be inspected and cleaned at least once a year.
  6. Observe all governing codes and ordinances.
 

Don'ts

  1. Do not terminate dryer exhaust in a chimney, a wall, a ceiling, gas vent, crawl space, attic, under an enclosed floor, or in any other concealed space of a building.
  2. Never terminate the dryer exhaust into a common duct with a kitchen exhaust system. A combination of grease and lint creates a potential fire hazard.
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Clothes dryer safety
Troubleshooting: find solutions to common dryer venting problems
Do's & Don'ts
Clothes dryer performance
Planning points for you dryer venting system
Do's & Don't
Keep birds and rodents out
Dryer installation applications
Downloads
2017 Venting & Flexible Duct Product Catalogue 2017 Venting & Flexible Duct Product Catalogue 2.23 MB
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