22 Installation (for qualified installers only)
© Travis Industries 4101110 100-01256_000
Top Vent Configuration with Horizontal Termination
• Use 6-5/8” Diameter Vent
• Horizontal sections require a ¼” (6mm) rise every 12” (305mm) of travel.
• A maximum of four (4) 45° or 90° elbows may be used. Of these elbows, only one (1) may be a
horizontal elbow (see illustration).
• The termination must fall within the shaded area shown in the chart. Use the indicated restrictor
and diffuser position. NOTE: Restrictor positions are based upon lab tests. The ideal restrictor
position may vary slightly, especially when the termination is near a demarcation line.
5 feet (1.5m)
10 feet (3m)
15 feet (4.5m)
20 feet (6m)
5 feet (1.5m)
0 feet
0 feet
5 feet (1.5m)
10 feet (3m)
15 feet (4.5m)
20 feet (6m)
10 feet (3m)
15 feet (4.5m)
20 feet (6m)
24 ' max (7.3m)
0 feet
5 feet (1.5m)
10 feet (3m)
15 feet (4.5m)
20 feet (6m)
24 ' max (7.3m)
0 feet
Exhaust Restrictor Position #4
Diffuser Open (stock)
21' max (6.3m)21' max (6.3m)
Min. 2' (0.61m) Rise Required
Exhaust Restrictor Position #2
Diffuser Closed
Exhaust Restrictor Removed
Diffuser Closed
Horizontal elbows are elbows placed between
two horizontal sections of pipe. One 45° or 90°
horizontal elbow is allowed for this configuration.
Horizontal Elbow
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