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12 American Dryer Corp. 113222-5
SINGLE DRYER VENTING
IMPORTANT: A minimum exhaust duct size of 8-inches (20.32 cm) must be used.
For an 8-inch (20.32 cm) horizontal run where a maximum of one (1) elbow is used (refer to the illustration
below), the ductwork from the dryer outlet must not exceed 40 feet (12.2 meters).
If the length of the duct run or quantity of elbows used exceeds the above noted specifications, the
cross-sectional area of the ductwork must be increased in proportion to the number of elbows or duct run added.
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 noted in
this manual, a professional heating, ventilating, and air-conditioning (HVAC) firm
should be consulted for proper venting information.
When single 8-inch (20.32 cm) venting is used, for a horizontal run, the ductwork from the dryer to the outside
outlet cannot exceed 40 feet (12.2 meters) in total length. This calculation of 40 feet (12.2 meters) compensates
or allows for the use of a maximum of one (1) elbow (which is the outside outlet protection). Refer to the
illustration above.