Do Stackable Dryers Need to Be Vented Outside?

The answer is yes, stackable dryers need to be vented outside to prevent moisture, lint, and carbon monoxide from accumulating inside the home. Venting a stackable dryer is similar to venting a regular dryer, but it may require some extra steps and considerations depending on the model and installation.

Why Venting a Stackable Dryer Is Important

Venting a stackable dryer is important for several reasons. First, it helps to remove excess moisture from the clothes and the dryer, which can prevent mold, mildew, and damage to the appliance. Moisture can also cause humidity and condensation problems in the home, which can affect the indoor air quality and comfort.

Second, venting a stackable dryer helps to prevent lint buildup, which can pose a fire hazard and reduce the efficiency of the dryer. Lint can also clog the dryer’s filter, ducts, and vents, which can affect the performance and lifespan of the appliance. Lint can also attract pests and insects, which can cause health and hygiene issues.

Third, venting a stackable dryer helps to prevent carbon monoxide poisoning, which can occur if the dryer uses gas as a fuel source. Carbon monoxide is a colorless, odorless, and tasteless gas that can cause headaches, nausea, drowsiness, and even death. Venting a stackable dryer allows the carbon monoxide to escape safely outside, rather than accumulating inside the home.

How to Vent a Stackable Dryer

Venting a stackable dryer is not very different from venting a regular dryer, but it may require some additional steps and considerations depending on the model and installation. Here are some general guidelines to follow:

  • Choose a suitable location for the stackable dryer, preferably near an exterior wall or window, to minimize the length and bends of the vent duct.
  • Use a rigid or semi-rigid metal duct, rather than a flexible plastic or foil duct, to vent the stackable dryer. Metal ducts are more durable, fire-resistant, and less prone to kinking and crushing than plastic or foil ducts.
  • Avoid using screws, nails, or other fasteners that can protrude into the duct and create obstructions or catch lint. Use duct tape or clamps to secure the duct joints instead.
  • Cut a hole in the wall or window that matches the size of the vent hood. Install the vent hood on the outside of the wall or window, and seal any gaps with caulk or foam.
  • Connect the vent duct to the dryer’s exhaust port, and then to the vent hood. Make sure the duct is as straight and short as possible, and avoid any unnecessary bends or turns. The maximum length of the duct should not exceed 25 feet, and each 90-degree bend should reduce the length by 5 feet.
  • Check the manufacturer’s instructions for any specific requirements or recommendations for venting the stackable dryer. Some models may have special features or settings that affect the venting process.
  • Clean the lint filter before and after each load, and inspect the vent duct and hood regularly for any signs of lint buildup, damage, or blockage. Remove any lint or debris that may accumulate in the duct or hood, and replace any damaged or worn parts as needed.
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Benefits of Venting a Stackable Dryer

Venting a stackable dryer can provide several benefits for the appliance and the home, such as:

  • Improving the drying efficiency and performance of the dryer, which can save time, energy, and money.
  • Extending the lifespan and durability of the dryer, which can reduce the need for repairs or replacements.
  • Enhancing the safety and health of the home, by preventing fire hazards, moisture problems, and carbon monoxide poisoning.
  • Increasing the value and appeal of the home, by adding a convenient and modern laundry feature.


Venting a stackable dryer is a necessary and beneficial process that can improve the functionality and safety of the appliance and the home. Venting a stackable dryer requires a metal duct, a vent hood, and a suitable location, as well as regular cleaning and maintenance. Venting a stackable dryer can also provide advantages such as faster drying, longer appliance life, and better indoor air quality. By following the proper steps and guidelines, venting a stackable dryer can be a simple and rewarding task.