VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
11
VENTING INSTALLATION INSTRUCTIONS
Continued
CORNER INSTALLATION
Recommended Applications:
•Corner ground floor installation
•Ground floor installation where pipe vents horizontally through wall (over 12" horizontal pipe)
•Basement installation where one foot clearance from ground to termination is possible
| Vertical (V) | Required |
Vertical (V) | Vertical Pipe | Horizontal (H) |
*43 1/2" min. | None | 30" max. |
54 1/2" min. | 1 ft. | 48" max. |
66 1/2" min. | 2 ft. | 60" max. |
78 1/2" min. | 3 ft. | 84" max. |
90 1/2" min. | 4 ft. | 20' max. |
* Ground Floor Corner Venting
Not to Exceed
(H) Limits
Square
Termination
Wall
Firestop
45°
Elbow
90° Elbow
As Required for (V) See Chart for Pipe Section Required
Not to Exceed
(H)Limits 90° Elbow 
Wall
Firestop
45° Elbow
Square 
Termination
12" Minimum
Figure 15 - Horizontal Termination Configuration for Corner Installation Using One 90° Elbow
SNORKEL TERMINATION INSTALLATION
Recommended Applications:
•Installations requiring a vertical rise on building exterior
•Any installation using snorkel termination to achieve one foot above ground
Snorkel terminations are available for installations requiring a vertical rise on the exterior of the building. If installing snorkel termination below grade, you must provide proper drainage to prevent water from entering snorkel termination (see Figure 16). Do not back fill around snorkel termination.
Snorkel | Snorkel | |
Termination | ||
Termination | ||
Wall | ||
| ||
| Firestop | |
| 90° Elbow | |
| 12" | |
| Minimum | |
| 45° | |
12" | Elbow | |
| ||
Minimum |
| |
| Adequate | |
| Drainage |
Snorkel 
Termination
12"
Minimum
Figure 16 - Snorkel Termination Configurations for Below Ground Installation
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