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111924-01D 11
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 termina-
tion below grade, you must provide proper drainage to prevent water from entering snorkel termination (see Figure 16). Do not back ll
around snorkel termination.
VENTING INSTALLATION INSTRUCTIONS
Continued
12"
Minimum
Snorkel
Termination
Snorkel
Termination
12"
Minimum
Snorkel Termination
Wall
Firestop
90° Elbow
45°
Elbow
Figure 16 - Snorkel Termination Congurations for Below Ground Installation
12"
Minimum
Adequate
Drainage
HORIZONTAL SYSTEM INSTALLATION USING TWO 90° ELBOWS
The following congurations show the minimum vertical rise requirements for a horizontal system using two 90° elbows.
45° Elbow
Venting with Two 90° Elbows
Vertical (V) Horizontal Horizontal (H
1
) +
(H
1
) Horizontal (H
2
)
5' min. 2' max. 6' max.
6' min. 4' max. 12' max.
7' min. 6' max. 18' max.
8' min. 8' max. 20' max.
20' max. 8' max. 20' max.
Figure 17 - Horizontal Termination Conguration for Venting
Using Two 90° Elbows
45° Elbow
Figure 18 - Horizontal Termination Conguration for Venting
Using Two 90° Elbows with Termination at 90° with Fireplace
Venting with Two 90° Elbows
Vertical (V) Horizontal (H
1
)
Horizontal (H
2
)
5' min. 6' max.
6' min. 12' max.
7' min. 18' max.
8' min. 20' max.
20' max. 20' max.