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.
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| Horizontal | |
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| overhang | |
24 in. min. | 20 in. |
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(508 mm) |
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(610 mm) | Vertical | ||
Lowest | |||
| wall | ||
| Discharge |
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Termination | Opening |
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Cap |
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Storm Collar |
| X | |
| 12 | ||
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Roof |
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Flashing |
| Roof Pitch | |
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| is X / 12 |
H (min.) - Minimum height from roof to lowest discharge opening.
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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Figure 6.1 Minimum Height From Roof To Lowest Discharge Opening
A | B |
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6 in. (minimum) up to 20 in. | 18 in. minimum |
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152 mm/508 mm | 457 mm |
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20 in. and over | 0 in. minimum |
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Gas, Wood or Fuel Oil |
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Termination Cap |
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| Wall |
B | (2.44 m) | Perpendicular |
Minimum |
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| DV = 20 in. |
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A * | (508 mm) |
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BV = 8 ft |
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Gas |
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Termination |
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Cap ** |
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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 terminations, the wood termination cap must be higher than the gas termination cap.
Figure 6.2 Multiple Termination Caps
20 | Heatilator • Caliber CNXT Series • |
