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10_ installing your dryer
DUCTING REQUIREMENTS
• Use a 4-inch (10.2 cm) diameter rigid aluminum or rigid galvanized steel duct.
• Do not use a smaller duct.
• Ducts larger than 4 inches (10.2 cm) in diameter can cause increased lint accumulation.
Lint accumulation should be cleaned regularly.
• If a flexible metal duct must be used, use the type with a sti sheet metal wall. Do not use a flexible duct
with a thin foil wall. Serious blockage can result if the flexible metal duct is bent too sharply.
• Never install any type of flexible duct in walls, ceilings, or other concealed spaces.
• Keep the exhaust duct as straight and short as possible.
• Secure joints with duct tape. Do not use screws.
• Plastic flexible duct can kink, sag, be punctured, reduce airflow, extend drying times, and aect dryer
operation.
• Exhaust systems longer than recommended can extend drying times, aect machine operation, and
may collect lint.
• The exhaust duct should end with an exhaust hood with a swing-out damper to prevent back drafts and
the entry of wildlife. Never use an exhaust hood with a magnetic damper.
• The hood should have at least 12 inches (30.5 cm) of clearance between the bottom of the hood and
the ground or other obstruction. The hood opening should point down.
• Never install a screen over the exhaust outlet.
• To avoid lint buildup, do not exhaust the dryer directly into a window well. Do not exhaust under a house
or porch.
• If exhaust ductwork must run through an unheated area, the duct should be insulated and slope slightly
down towards the exhaust hood to reduce condensation and lint buildup.
• Inspect and clean the interior of the exhaust system at least once a year. Unplug the power cord before
cleaning.
• Check frequently to be sure the exhaust hood damper opens and closes freely.
• Check once per month, and clean at least one time per year. Note: If clothes are not getting dry, then
check ducting for obstructions.
• Do not exhaust dryer into any wall, ceiling, crawl space, or concealed space of a building, gas vent, or
any other common duct or chimney. This could create a fire hazard from lint expelled by the dryer.
ELECTRIC AND GAS DRYER
Weather Hood Type
Recommended Use only for short-run installation
4” (10.2 cm) 2.5” (6.4 cm)
No. of 90° elbows Rigid Metallic Flexible* Rigid Metallic Flexible*
0 80 ft. (24.4 m) 41 ft. (12.4 m) 74 ft. (22.6 m) 33 ft. (10.1 m)
1 68 ft. (20.7 m) 37 ft. (11.2 m) 62 ft. (18.9 m) 29 ft. (8.8 m)
2 57 ft. (17.4 m) 33 ft. (10.1 m) 51 ft. (15.5 m) 25 ft. (7.6 m)
3 47 ft. (14.3 m) 29 ft. (8.8 m) 41 ft. (12.5 m) 21 ft. (6.5 m)
* Do not use non-metallic flexible duct.
installing your dryer