EXHAUST REQUIREMENTS
Customer Service Troubleshooting Tips Operating Instruction Installation Instructions Safety Instructions
Number of 90° |
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| Weather Hood Type | |||
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Elbows |
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| Recommended |
| Use Only for Short Run Installations | ||
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| 4” | 4” |
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| (10.2 cm) | (10.2 cm) |
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| (6.35 cm) | |||
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| Maximum length of 4” (10.2 cm) diameter rigid metal duct | |||||
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| 65 feet (19.8 m) |
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| 55 feet (16.8 m) | |
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1 |
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| 55 feet (16.8 m) |
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| 47 feet (14.3 m) | |
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2 |
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| 47 feet (14.3 m) |
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| 41 feet (12.5 m) | |
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3 |
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| 36 feet (11.0 m) |
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| 30 feet (9.1 m) | |
4 |
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| 28 feet (8.5 m) |
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| 22 feet (6.7 m) | |
| Maximum length of 4” (10.2 cm) diameter flexible metal duct | ||||||
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| 45 feet (13.7 m) |
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| 35 feet (10.7 m) | |
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| 35 feet (10.7 m) |
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| 27 feet (8.2 m) | |
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2 |
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| 30 feet (9.1 m) |
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| 21 feet (6.4 m) | |
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3 |
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| 25 feet (7.6 m) |
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| 17 feet (5.2 m) | |
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| 20 feet (6.1 m) |
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| 15 feet (4.5m) | |
NOTE : Deduct 6 feet (1.8 m) for each additional elbow.
[ Table. 1]
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