Rear Vent - Vertical Termination - (continued)
Three Elbows
V2
H2
Figure 7.19
H1 Maximum | V1 Minimum |
| H2 | H1 + H2 Maximum | ||||||
2 ft. | 610 mm | 6 in. |
| 152 mm | 2 ft. |
| 610 | 4 ft. |
| 1.2 m |
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3 ft. | 914 mm | 1 ft. |
| 305 mm | 4 ft. |
| 1.2 m | 7 ft. |
| 2.1 m |
5 ft. | 1.5 m | 2 ft. |
| 610 mm | 6 ft. |
| 1.8 m | 11 ft. |
| 3.4 m |
7 ft. | 2.1 m | 3 ft. |
| 914 mm | 8 ft. |
| 2.4 m | 15 ft. |
| 4.6 m |
8 ft | 2.4 m | 4 ft. |
| 1.2 m | 10 ft. |
| 3.1 m | 18 ft. |
| 5.5 m |
| H1= 8 ft (2.4 m) Max. | V1 + V2 + H1 + H2= 40 ft (12.2 m) Max. |
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| H1 + H2 = 20 ft (6.1 m) Max. |
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V1
H1
Three Elbows | H1 | H2 | H3 |
| V1 Minimum | H1 + H2 + H3 | Maximum | ||
* | * | * | 8 ft. | 2.4 m | 6 ft. | 1.8 m | |||
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| * | * | * | 9 ft. | 2.7 m | 7 ft. | 2.1 m | ||
| * | * | * | 10 ft. | 3.1 m | 8 ft. | 2.4 m | ||
| * | * | * | 10 ft. | 3.1 m | 8 ft. | 2.4 m | ||
| V1 | V1 | + H1 + H2 + H3 | = 40 ft. (12.2 m) Maximum | |||||
| *No specific restrictions on this value EXCEPT | ||||||||
| V1 | + H1 + H2 | + H3 | cannot exceed 40 ft. (12.2 m) Maximum | |||||
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| H1 | + H2 | + H3 = 8 ft. (2.4 m) Maximum |
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H3
H1
H2
Figure 7.20 | INSTALLED |
HORIZONTALLY |
Heat & Glo • | 33 |