What Does Three-Way Venting on a Gas Dryer Mean?

How to Get Soot Out of a Dryer
Written By
Carly Fiske
Carly Fiske
Published: Dec 6, 2011
Updated: Nov 20, 2021
2 minute read

Three-Way Venting

Many clothes dryers are designed with a vent on the back side of the dryer. This limits how you can orient the appliance. Sometimes this forces users to place the dryer in such a way that the vent has to bend, reducing its efficiency. With three-way venting, you have the option to break out vents in the bottom and side of the machine. Even better is a four-way venting appliance, which offers options on both sides and gives you a full range of orientation options.

Using Three-Way Venting

Most dryers require the owner to purchase a special kit in order to install an alternative vent. These kits come with instructions that may be specific to your manufacturer, so you should always reference those first. It may require you to disassemble some of your internal dryer parts. Then you can strike the knockout panel from either the right side, left side or base. Use a hammer or chisel on the edges of the panel. In many cases, you will need to remove the old duct and replace it with the ducting and elbow joints from the kit. Contact the manufacturer if you have questions about the process.

Advertisement

Proper Venting

Improper dryer venting can easily become a fire hazard. But a safe installation is easy to accomplish. One important consideration is to keep the ducting as straight as possible. Multiple bends can create lint build-up. If lint accumulates to a great degree and a spark from the dryer lights it up, a serious fire could result. Furthermore, ducting that extends further than recommended by the manufacturer can increase drying time and make your appliance more expensive to operate.

Safer Options

Three-way venting prevents the need for creating bends and long ducting lengths to reach venting points. It prevents inefficiencies and fire hazards. But there are other tools you can use to prevent these problems. A periscoping vent tool allows you to directly vent to an outlet that is just slightly offset. Telescoping assemblies can pass venting through a tight space.

Photo Credits

Jupiterimages/Polka Dot/Getty Images

Carly Fiske

Carly Fiske has been writing professionally since 2009. She writes for websites including greenanswers.com, openoffer.com and thirdage.com. Fiske holds a Bachelor of Arts in cultural anthropology from the University of Redlands.

Sponsored
HomeSteady Logo

HomeSteady is the ultimate guide for all your household needs, from cleaning and HVAC to electrical, DIY and maintenance.

Property of TechnologyAdvice. © 2026 TechnologyAdvice. All Rights Reserved

Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.