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RECOMMENDED MAXIMUM
Exhaust Hood Types
Recommended Use only for short run installations
No. of 90º
elbows
Rigid Metal Rigid Metal
0 90 ft. 60 ft.
1 60 ft. 45 ft.
2 45 ft. 35 ft.
3 35 ft. 25 ft.
1. Only rigid metal duct work should be used.
2. Venting vertically through a roof may expose the exhaust system to down
drafts causing an increase in vent restriction.
3. Running the exhaust system through an uninsulated area may cause
condensation and faster accumulation of lint.
4. Compression of crimping of the exhaust system will cause an increase in
vent restriction.
5. In Canada, that only those foil-types flexible ducts, if any, specifically
identified for use with the appliance by the manufacturer shall be used. In
the United States, that only those foil-type flexible ducts, if any, specifically
identified for use with the appliance by the manufacturer and that comply with
the UL Outline for Clothes Dryer Transition Duct, Subject 2158A (2006), shall
be used.
6. In Canada, that the exhaust duct shall be 102mm in diameter. In the United
States, the required exhaust duct diameter.
7. The total length of flexible metal duct shall not exceed 2.4m.
The exhaust system should be inspected and cleaned a minimum of every 12
months with normal usage. The more the dryer is used the more often you should
check the exhaust system and vent hood for proper operation.
Note: Exhausting refers to removal of moist air from the drying compartment.
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