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Duct Connections
•` Blower exhaust faces towards rear wall. Connect
blower exhaust to ducting with 3¼ x 10 piece. No
screws are necessary.
• Do not install 2 elbow fittings next to each other. Two
elbow fittings joined together create unusual air
patterns and can result in poor ventilation.
• Do not vent into an attic or crawl space. Always vent
outside.
• Seal all joints in venting system with duct tape to avoid
smoke or odor in home.
• Do not use laundry wall caps. Wall cap must have
minimum of 28 square inches free air space.
Blower Exhaust
Ducting
Adjustable transition piece
Duct Length
Maximum allowable calculated duct length is 60
equivalent feet.
• Use “Duct Length Piece Equivalents” section to
calculate duct length.
• Flexible duct is not recommended. However, if it is
used, one foot of flexible duct is equal to two feet of
smooth metal duct.
Duct Length Piece Equivalents
3¼ x 10 inch ducting pieces
3¼ x 10 inch to 6 inch
transition = 5 equivalent
foot
3¼ x 10 inch to 6 inch
transition = 4½
equivalent feet
3¼ x 10 inch flat elbow =
12 equivalent feet
3¼ x 10 inch 90 degree
elbow = 5 equivalent feet
3¼ x 10 inch wall cap
(Unrestricted) = 0
equivalent feet