SINGLE DRYER VENTING
IMPORTANT: For extended ductwork runs, the cross section area of the ductwork can only be increased to an extent. When the ductwork approaches the maximum limits as noted in this manual, a professional heating, ventilating, and air-conditioning (HVAC) firm should be consulted for proper venting information.
Horizontal Venting
When horizontal dryer venting is used, the length of the ductwork from the dryer to the outside exhaust outlet, must not exceed Dimension A (30 feet [9.144 meters]). The minimum diameter of this ductwork must be at least Dimension B (8-inches [20.32 cm]). Including basket (tumbler)/dryer elbow connections or elbows used for outside protection from the weather, no more than one (1) elbow should be used in the exhaust duct run. If more than one (1) elbow is used, the cross-sectional area of the ductwork must be increased.
Vertical Venting
When vertical dryer venting is used, the length of the ductwork from the dryer to the outside exhaust outlet, must not exceed Dimension C (20 feet [6.096 meters]). The minimum diameter of this ductwork must be at least Dimension D (8-inches [20.32 cm]). Including basket (tumbler)/dryer elbow connections or elbows used for outside protection from the weather, no more than three (3) elbows should be used in the exhaust duct run. If more than three (3) elbows are used, the cross-sectional area of the ductwork must be increased.
NOTE 1 Opening must be 2-inches (5.08 cm) larger than the duct (all the way around). The duct must be centered within this opening. NOTE 2 Distance should be 2 times the diameter of the duct to the nearest obstruction.
