1. Top Vent - Horizontal Termination - (continued)
Three Elbows
Note: Must have a 24 inches minimum vertical vent before attaching any elbow to the appliance.
Note: Flue restrictor is permit- ted ONLY on 30 ft. minimum vertical runs with no elbows.
| V1 |
| H1 | V2 | H2 |
2 ft | 610 mm | 7 in | 178 mm | * | H2 Max = 2 X V2 |
3 ft | 914 mm | 2 ft | 610 mm | * | H2 Max = 2 X V2 |
4 ft | 1.2 m | 4 ft | 1.2 m | * | H2 Max = 2 X V2 |
5 ft | 1.5 m | 9 ft | 2.7 m | * | H2 Max = 2 X V2 |
6 ft | 1.8 m | 12 ft | 3.7 m | * | H2 Max = 2 X V2 |
7 ft | 2.1 m | 14 ft | 4.3 m | * | H2 Max = 2 X V2 |
10 ft | 3.0 m | 20 ft | 6.1 m | * | H2 Max = 2 X V2 |
V1 + H1 must be adhered to.
* V2 has no specific restrictions EXCEPT,
Ht max = 2 x Vt and Vtotal + Htotal cannot exceed 60 ft Maximum
H2
V2
H1
V1
Figure 7.5
28 | Heat & Glo • |
