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The internal dimensions of the dryer’s rectangular exhaust vent ductwork is 8-1/2” x 21-inches
(20.6 cm x 53.5 cm). A transition piece to 24-inches (60.96 cm) in diameter round is supplied. The
location’s exhaust duct must be at least 24-inches (60.96 cm) in diameter or, for a rectangular duct, have a
cross-sectional area of 452 square inches (2,916 square centimeters). With the minimum size requirement
(24-inch [60.96 cm] round duct or 452 square inch [2,916 square centimeters] square duct) the ductwork
from the dryer to the outside exhaust outlet for a horizontal run with no more than one (1) elbow must not
exceed 43 feet (13.1 meters) refer to the illustration below. For locations with more than one (1) elbow,
the minimum exhaust size must be 28-inches (71.12 cm). For a 28-inch (71.12 cm) round duct (615 square
inch [3,967 square centimeters] duct) the horizontal or vertical duct total run must not exceed 50 feet
(15.24 meters) which includes the use of no more than three (3) elbows (refer to the illustration on page
15 and page 16). Should more than the maximum number of elbows be used or if the run exceeds the
maximum limits noted, a professional heating, venting, and air conditioning (HVAC) firm should be consulted
for proper venting information.
IMPORTANT: For extended ductwork runs or where more than the specified number of elbows are
used, a professional HVAC firm should be contacted for proper venting information.
NOTE: For extended ductwork runs the cross-sectional area of a duct can only be increased to
an extent. In some cases the addition of a booster fan in the ductwork may be necessary.