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Initial Installation
QUALIFIED INSTALLERS ONLY
Vertical
Termination
Storm Collar
Flashing
Round Support
Box/Wall Thimble
Ceiling Firestop
Pipelength
Pipelength
Cathedral Ceiling
Support Box
Pipelength
Round Support
Box/Wall Thimble
Pipelength
Horizontal
Termination
90° Elbow
Your total vent pipe length must be within the
shaded area of Figure 23. If a 90° elbow is used
in the horizontal plane, 36” (91.4 cm) must be
subtracted from the allowable horizontal run.
There are three (3) basic types of Direct Vent
System installations. The three (3) types of
installations are shown in Figures 15 through
17.
Figure 15: Common Horizontal Installation.
Figure 16: Common Vertical Installation.
Round Support
Box/Wall Thimble
2 ft (610 mm)
Pipelength
36" (915 mm)
Snorkel
Onto Stove
Adaptor
Figure 17: Common Snorkel Installation.
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