What's the Appropriate Dryer Vent Height?

The maximum length for either a flexible or rigid dryer vent depends on the design of the metal duct used and the type of vent. It is recommended that it should be as short as possible and not exceed 25 ft in length. This helps to make vent dryers both safe and efficient in their operation.

One important factor that will enhance the performance of vent dryers is the type of material that is used to manufacture the product. Select smooth and flawless vents. Avoid products that have joints that are connected with screws along the length of the vent dryer. Metal ducts make good products, but you should avoid products made from PVC.


Short vent dryers are easier to clean and maintain. They are also economical and they save on space. Make sure they are inspected regularly to prevent health hazards in the home in form of fires or contaminated air. Here are a few tips:

  • Clean dryer vents to save time and energy, it can prevent the accumulation of lint which can cause fires.
  • It is advisable to have dryer vents connected to the outdoors.
  • Avoid using fabric softeners because they increase the build-up of lint in the vent.