6 Termination Locations
A. Vent Termination Minimum Clearances
WARNING
Fire Risk.
Maintain vent clearance to combustibles as specified.
• DO NOT pack air space with insulation or other materials.
Failure to keep insulation or other materials away from vent pipe may cause overheating and fire.
A | B |
6 in. (minimum) up to 20 in. | 18 in. minimum |
152 mm/508 mm | 457 mm |
20 in. and over | 0 in. minimum |
Gas, Wood or Fuel Oil
Termination Cap
24 in. min.
(610 mm)
Termination
Cap
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| 20 in. |
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(508 mm) | Vertical | ||||
Lowest | |||||
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Discharge |
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Opening |
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B
A *
Gas
Termination
Cap **
Storm Collar |
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| 12 | X |
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Roof |
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Flashing |
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| H (min.) - Minimum height |
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| from roof to lowest |
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Roof Pitch | H (Min.) Ft. |
| Roof Pitch | H (Min.) Ft. | ||||
Flat to 6/12 |
| 1.0* |
| Over 11/12 to 12/12 | 4.0 | |||
Over 6/12 to 7/12 | 1.25* |
| Over 12/12 to 14/12 | 5.0 | ||||
Over 7/12 to 8/12 | 1.5* |
| Over 14/12 to 16/12 | 6.0 | ||||
Over 8/12 to 9/12 | 2.0* |
| Over 16/12 to 18/12 | 7.0 | ||||
Over 9/12 to 10/12 | 2.5 |
| Over 18/12 to 20/12 | 7.5 | ||||
Over 10/12 to 11/12 | 3.25 |
| Over 20/12 to 21/12 | 8.0 | ||||
| * 3 ft. minimum in snow regions |
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*If using decorative cap cover(s), this distance may need to be increased. Refer to the installation instructions supplied with the decorative cap cover.
**In a staggered installation with both gas and wood or fuel oil terminations, the wood or fuel oil termination cap must be higher than the gas termination cap.
Figure 6.2 Multiple Termination Caps
Figure 6.1 Minimum Height From Roof To Lowest Discharge Opening
22 | Heatilator • Novus NNXT • |