Ductwork
Wall Cap Type | No. of 90° Elbows | Maximum length of 4-inch diameter rigid metal duct |
|---|---|---|
Recommended  | 0 | 65 ft. (19.8 m) |
1 | 55 ft. (16.8 m) | |
2 | 47 ft. (14.3 m) | |
3 | 36 ft. (11.0 m) | |
4 | 28 ft. (8.5 m) | |
Use for only short run installations  | 0 | 55 ft. (16.8 m) |
1 | 47 ft. (14.3 m) | |
2 | 41 ft. (12.5 m) | |
3 | 30 ft. (9.1 m) | |
4 | 22 ft. (6.7 m) |
Note
Deduct 6 ft. (1.8 m) for each additional elbow. Do not use more than four 90° elbows.
In Canada, only those foil-type flexible ducts, if any, specifically identified for use with the appliance by the manufacturer should be used. In the United States, only those foil-type flexible ducts, if any, specifically identified for use with the appliance by the manufacturer and that comply with the Outline for Clothes Dryer Transition Duct, Subject 2158A, should be used.