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| H1 |
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| V1 |
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| V |
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| H |
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| NATURAL GAS |
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VENTING WITH THREE 90° ELBOWS |
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V + V1 | (FT.) | H + H1 (FT.) |
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900 Elbow on top | 2.5’ MAX. (64mm) |
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1' MIN. (305mm) | 3' MAX. (914mm) |
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2' MIN. (610mm) | 6' MAX. | (1.83m) |
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3' MIN. (914mm) | 9' MAX. | (2.7m) |
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4' MIN. (1.22m) | 12' MAX. | (3.6m) |
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5’ MIN. (1.5m) | 15’ MAX. | (4.5m) |
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6’ MIN. (1.83m) | 18’ MAX. | (5.5m) |
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V+ V1 + H + H1 = 50’ MAX. (15.2m) |
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| H + H1 = 18’ MAX. (5.5m) | PROPANE |
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| VENTING WITH THREE 90° ELBOWS | ||
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| V + V1 (FT.) | H + H1 (FT.) | |
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| 900 Elbow on top | 2’ MAX. (610mm) | |
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| 1' MIN. (305mm) | 2' MAX. (610mm) | |
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| 2' MIN. (610mm) | 4' MAX. | (1.22m) |
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| 3' MIN. (914mm) | 6’ MAX. (1.83m) | |
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| 4' MIN. (1.22m) | 8' MAX. | (2.4m) |
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| 5’ MIN. (1.5m) | 10' MAX. | (3.0m) |
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| 6’ MIN. (1.83m) | 12' MAX. | (3.6m) |
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| V+ V1 + H + H1 = 50’ MAX. (15.2m) | ||
V1 |
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| H + H1 = 12’ MAX. (3.6m) | ||
| H1 |
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| V |
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| H |
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Figure 19. Venting with three 90° elbows |
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24 | Heat & Glo • |
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