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Use wall brackets to
support vertical runs
every 8 feet (2.4 m)
above the fireplace flue
outlet.
NOTE
25
For Vertical Runs - The vent system must be
supported every eight (8) feet (2.4 m) above the
fireplace flue outlet by wall brackets.
To install support brackets for vertical runs:
• Attach wall brackets to the vent pipe and secure
the wall bracket to the framing members with
nails or screws.
Figure 21. Installing Support Brackets
4. Install Firestops
For Horizontal Runs - Firestops are REQUIRED
on both sides of a combustible wall through which
the vent passes.
Model DVK-01TRD or SLK-01TRD do not need an
exterior firestop on an exterior combustible wall.
To install firestops for horizontal runs that pass
through either interior or exterior walls:
• Cut a 12-inch by 12-inch (305 mm X 305 mm)
hole through the wall for D-series or a 10-inch by
10-inch (254 mm X 254 mm) hole for SL-D-
series pipe. The center of the hole is one (1) inch
(25.4 mm) above the center of the horizontal vent
pipe.
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