Special provisions for mobile home installations:
The exhaust vent must be securely fastened to a noncombustible portion of the mobile home structure and must not terminate beneath the mobile home. Terminate the exhaust vent outside.
The “Vent System Chart” provides venting requirements that will help achieve best drying performance.
Vent System Chart
| Number of | Type | Box/louvered | Angled |
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| 90° turns or | of vent | hoods | hoods |
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| elbows |
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| 0 | Rigid metal | 64 ft. (20 m) | 58 ft. (17.7 m) |
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| 1 | Rigid metal | 54 ft. (16.5 m) | 48 ft. (14.6 m) |
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| 2 | Rigid metal | 44 ft. (13.4 m) | 38 ft. (11.6 m) |
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| 3 | Rigid metal | 35 ft. (10.7 m) | 29 ft. (8.8 m) |
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| 4 | Rigid metal | 27 ft. (8.2 m) | 21 ft. (6.4 m) |
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Determine vent path:
■■ Select route that will provide straightest and most direct path outdoors.
■■ Plan installation to use fewest number of elbows and turns.
■■ When using elbows or making turns, allow as much room as possible.
■■ Bend vent gradually to avoid kinking. ■■ Use as few 90° turns as possible.
Determine vent length and elbows needed for best drying performance:
■■ Use following “Vent System Chart” to determine type of vent material and hood combinations acceptable to use.
NOTE: Do not use vent runs longer than those specified
in “Vent System Chart.” Exhaust systems longer than those specified will:
■■ Shorten life of dryer.
■■ Reduce performance, resulting in longer drying times and increased energy usage.
NOTE: Side and bottom exhaust installations for 27" wide models have a 90º turn inside the dryer. To determine maximum exhaust length, add one 90º turn to the chart.
Vent System Chart
(29" Wide Long Vent Models Only)
| Number of | Type | Box/louvered, or |
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| 90° turns | of vent | Angled hoods |
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| or elbows |
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| 0 | Rigid metal | 120 ft. (36.6 m) |
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| 1 | Rigid metal | 110 ft. (33.5 m) |
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| 2 | Rigid metal | 100 ft. (30.5 m) |
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| 3 | Rigid metal | 90 ft. (27.4 m) |
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| 4 | Rigid metal | 80 ft. (24.4 m) |
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| 5 | Rigid metal | 70 ft. (21.3 m) |
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Install Vent System
1. Install exhaust hood
12" min.
(305 mm)
12" min. 
(305 mm)
Install exhaust hood and use caulking compound to seal exterior wall opening around exhaust hood.
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