Dryer Fire Fact Sheet:

Dryer Exhaust fire surpass chimney fires in frequency on a national level. In 1998, the most recent statistics available, the Consumer Product Safety Commission reports that over 15,600 dryer fires occurred killing 20 people, injuring 370 more and causing over $75.4 million in property damage. According to the CPSC, in most of the cases the culprit was lint getting into the machine’s heating element, sparking and fueling a fire.

With gas dryers, there is also concern of carbon monoxide (CO) poisoning. Since lint and flue gases use the same avenue of exit from the house, a blocked vent can cause CO fumes to back up into the house. These fumes are colorless and odorless and they can be fatal.

Dryer fires usually start beneath the dryer when the motor overheats. Overheating is caused by a build-up of lint in the duct that increases the drying time and blocks the flow of air, just like cholesterol in your arteries can build up and block the flow of blood to your heart. Naturally, any lint that has collected under the dryer will burn and the draft from the dryer will pull that fire up into the duct. Since the duct is coated or even blocked with lint, many times a house fire results. Other contributing conditions may include failure of the thermostat and limit switches in the dryer, lint inside the dryer, a missing or damaged lint screen, a crushed hose behind the dryer, or a bird’s nest or other debris blocking the vent.

Warning Signs:
-Dryer is still producing heat, but taking longer and longer to dry clothes, especially towels and jeans.
-Clothes are damp or hotter than usual at the end of the cycle.
-Outdoor flapper on vent hood doesn't open when dryer is on.