Dryer Vent Fires

In the years from 1991 to 1995, dryer vent fires increased to 15,800, up over 15%, resulting in at least 10 deaths and 310 injuries annually. Most dryer vent fires start with a buildup of lint, which blocks the flow of air and ignites when it becomes too hot.

Most often, poor venting causes the problem. As most people prefer to keep their dryer pushed as close to the wall as possible, this leaves little room for the pipe to come out and turn. Most people crush that pipe, which creates a trap for lint to collect, in an effort to get the dryer closer to the wall.

Also, dryer venting tends to sag, if it is not guided through the rafters with rigid ducting. The curves will stop the lint from blowing out. Lint becomes trapped in the ribs of ducting, creating pockets of potentially flammable debris. This creates an even more extreme problem when the heavy winds are blowing. Debris, such as tree bark can become lodged inside, mixing with the lint, and creating an easily ignitable pile of debris.

The easiest solution: clean your dryer vents regularly or have them professionally cleaned. Make sure that your dryer is operating properly. Each time that you begin a new load of clothes, you should make sure that the filter has been cleaned; also, check the outside exhaust to see that air is escaping normally. If there are any signs that your dryer is hotter than normal, your temperature control thermostat might need servicing.