Failing to open your flue can lead to serious health hazards if you start a fire because the smoke will back up into your home. Breathing fire smoke, even in relatively small quantities, is bad for human lungs, and smoke can also irritate your nasal passages and eyes. Furthermore, smoke can cause damage to your interior fixtures and furnishings, at the very least leaving an unpleasant smoky smell for a long time. In short: If your flue isn’t open (or you’re not sure if it is or not), don’t start a fire to find out!

Professionals use specialized tools to clean dryer vents effectively. These tools typically include a combination of flexible rods and brushes designed to navigate the vent's twists and turns. The brushes dislodge and loosen lint and debris, while the rods help extend the reach through the vent. High-powered vacuums with HEPA filters are also used to capture and remove the dislodged lint and particles, ensuring a thorough cleaning. In some cases, professionals may employ video inspection cameras to assess the condition of the vent and confirm that it's entirely clean.

To optimize airflow and energy efficiency, regularly clean vents and replace air filters, schedule periodic professional duct inspections, and seal any visible leaks. Proper maintenance prolongs ductwork longevity and performance.

The frequency of cleaning your dryer depends on how often you use it. For regular households, it is recommended to clean the lint trap after each load of laundry. Additionally, thorough cleaning of the dryer—lint trap, drum, and exterior—should be done every few months. It's important to pay attention to the vent system as well. Ideally, it should be cleaned at least once a year, or six months if your dryer takes care of huge loads often, or more frequently if you notice reduced drying efficiency.