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 |
| |
|
| Wall |
B | Minimum | Perpendicular |
| 8 ft | |
| (2.44 m) | |
| A * | |
|
| |
Gas |
|
|
Termination |
|
|
LISTED
8 FEET | VERTICAL |
| WALL |
LOWEST
DISCHARGE
OPENING
X
12
ROOF PITCH
IS X/ 12
H (MIN.) - MINIMUM HEIGHT FROM ROOF TO LOWEST DISCHARGE OPENING
Cap ** |
*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 Staggered Termination Caps
Roof Pitch | H (Min.) Ft. |
Flat to 6/12 | 1.0* |
Over 6/12 to 7/12 | 1.25* |
Over 7/12 to 8/12 | 1.5* |
Over 8/12 to 9/12 | 2.0* |
Over 9/12 to 10/12 | 2.5 |
Over 10/12 to 11/12 | 3.25 |
Over 11/12 to 12/12 | 4.0 |
Over 12/12 to 14/12 | 5.0 |
Over 14/12 to 16/12 | 6.0 |
Over 16/12 to 18/12 | 7.0 |
Over 18/12 to 20/12 | 7.5 |
Over 20/12 to 21/12 | 8.0 |
* 3 foot minimum in snow regions
Figure 6.1 Minimum Height From Roof To Lowest Discharge Opening
22 | Heatilator • GBST4336I, GBFL4136I • |
