Dirty Dryer vents can cause increased drying times and are a potential fire hazard. Do you have increased drying times? You may need your dryer vent cleaned. Regular cleaning of the dryer vents will increase dryer efficiency and reduce fire risk. Improperly installed dryer vents are one cause of house fires. Please watch these videos to help you prevent a fire in your house. Don't believe me? Then just ask that leading consumer magazine, Consumer Reports.
Do you have plastic or foil-covered plastic dryer venting? You shouldn't! This video demonstrates the fire hazard of a dryer vent. This dryer vent is made of white vinyl, which is against fire code. It also wasn't cleaned for about 10 years. This dryer vent could have burnt a home to the ground within 15 minutes.
Some people have even run plastic venting BEHIND their walls. They would never even see the fire before it was too late.
This video will show you how to clean your ducts. Note, however, that this video shows the use of plastic flexible ducting, which is NOT recommended.
And for builders, please do a quality job and use the dryerBox: