Dryer Vent Cleaning - Frequently Asked Questions


The MOST important maintenance for any dryer is a clear exhaust. The UL (Underwriters Laboratories) recommends rigid or flexible metal venting and ducting materials help sustain airflow, as well as reduce operating costs and extend the life of the dryer and clothing due to lower drying temperatures. They go on to say; "The interior of the dryer and venting system should be cleaned periodically by qualified service personnel. If you notice the drying time is longer, clean the vent system thoroughly to ensure proper airflow."

Many dryer failures usually result from an improperly maintained dryer vent system. This causes premature failure of the bearings, elements, ignitors and other critical parts. An improperly maintained dryer vent can also be a fire hazard.

Dryer Vent Questions and Answers:


Q. Why don't clothes dryers have EnergyGuide labels on them?
A. The efficiency of comparable clothes dryer models is basically about the same, so EnergyGuide labels are not required. You may want to compare the power consumption however, for the different models of clothes dryers you might be considering.

Q. How much more will it cost on average, to use an electric clothes dryer vs. a gas dryer?
A. Gas dryers are less expensive to operate than electric dryers. The cost of drying a typical load of laundry in an electric dryer is about double than that of a gas dryer. You may visit a local appliance store and check the operating costs of the model you are considering and find out the operating costs for both gas and electricity.

Q. Is it OK to vent a clothes dryer into a basement?
A. No. It is not recommended to vent dryers to an indoor space. The combination of moisture and heat can produce harmful mold, damage to walls and ceilings, and is generally unhealthy. Indoor vent kits should only be considered as a last resort, and only used in a well-ventilated area.

Q. Is there a code on dryer vent lines, how long, how many bends?
A. The International Mechanical Code article 504.6 stipulates the requirements for Domestic clothes dryer ducts. In brief, the maximum length of duct permitted is 25 feet. This maximum length should be reduced by 2.5 feet for each 45-degree bend and 5 feet. for each 90-degree bend. The duct should be a minimum nominal size of 4 inches in diameter and shall have a smooth interior finish.

Q. Why isn't my dryer drying my clothes as fast as it used to?
A. The dryer vent may be blocked, lint screen may be fully covered, or the heating element is malfunctioning. Review dryer venting tips to be sure you unit complies. If your dryer vent is blocked, it is a fire hazard and it would be better for you not to have it professionally cleaned by a dryer vent cleaning company than to run the dryer for an extended period of time.

Q. Should I remove the back of the dryer and vacuum around the drum?
A. Not necessarily, unless it is thoroughly covered by the manufacturer in the operators manual. This work should really be performed by a trained professional. However, you do need to keep the lint catcher clean. A clogged lint filter will restrict air flow and reduce dryer performance. Clean the dryer lint-catcher/filter after each load.

Q. I have heard that it is important to clean a dryer vent to prevent a fire from starting. Is there a tool and instructions for cleaning a dryer vent?
A. Yes, such tools are available from The Virtual Repairman. One is a 4" Nylon brush attached to a 10-foot flexible rod, which will accommodate most normal duct runs, whether they are straight or at angles. These are perfect for any round vent which has relatively short runs and is easily accessible. The other tool is a professional vent cleaning augur brush that rotates on any cordless drill, allowing a homeowner to clean vent runs of any type up to 27 feet long! A one-time purchase can save you a fortune on professional cleaning services, at the same time protecting your family and property from accidental fire!

Professional Clothes Dryer Vent Cleaning


For $65 Duct-911.com will clean the entire dryer vent and also vacuum out the fire box. Or, if you would prefer, you can purchase the tools and do it yourself. If you prefer the convenience and assurance that comes with professional dryer vent cleaning, we would be happy to schedule a time to come out.

We hope you have found or Dryer Vent Cleaning FAQ to be useful. If you have further dryer vent cleaning questions, please call (877) Duct-911 (877-382-8911). We would also recommend reading "Dryer Vent Cleaning Tips". Thank you for reading through our dryer vent questions.
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