4 Termination Locations
A. Vent Termination Minimum Clearances
WARNING
Fire Risk
Explosion 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 fire.
| 8 ft |
|
| (2.44 m) | Vertical |
| Lowest | |
| wall | |
| Discharge |
|
Termination | Opening |
|
|
| |
Cap |
|
|
Storm Collar |
| X |
| 12 | |
|
| |
Roof |
|
|
Flashing |
| Roof Pitch |
|
| 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 |
|
|
Oil Termination
|
|
| 8 ft |
|
| A | (2.44 m) |
18 in. |
| (minimum) to | |
|
| Perpendicular | |
(457 mm) |
|
| Wall |
| B |
| (gas only) |
|
|
| |
Gas |
|
|
|
Termination |
|
|
|
Termination Caps Staggered Height
| A | Gas Termination | Wood or Fuel Oil Termination |
| |||||||||||||||||||
| B | 6 in. (152 mm) min. |
|
|
|
| 20 in. (508 mm) min. |
| |||||||||||||||
|
|
|
|
|
| ||||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||||||||||||||||
|
|
|
|
|
|
| Oil Termination |
|
|
|
|
|
|
|
|
| |||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 8 ft |
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| (2.44 m) |
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| (minimum) to |
|
| ||||
| Wood or |
|
| 20 in. min. * |
|
|
| Perpendicular |
|
| |||||||||||||
Gas Termination |
|
|
| (508 mm) |
|
|
|
|
| Wall |
|
| |||||||||||
|
|
|
|
|
|
| (gas only) |
|
| ||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Termination Caps Same Height
*If using decorative cap cover(s), this distance may need to be increased. Refer to the installation instruc- tions supplied with the decorative cap cover.
Figure 4.2 Multiple Vertical Termination
Figure 4.1 Minimum Height from Roof to Lowest Discharge Opening
Figure 4.1 specifies minimum vent heights for various pitched roofs.
12 | Heatilator • Novus |