http://www.totalductcleaning.com/Is_dryer_vents_cleaning_really_essential.html
During the normal process of lint is caught in the lint trap while the air is expelled through the system. If there are obstacles in this system, which would mean the airflow is restricted and therefore get your dryer has to work overtime to get free. The entire process is still here, the engine may overheat and cause a dry fire. (more…)