Heat-N-Glo SL-350DVT Installer's Manual page 19

2. Continue Adding Vent Components
• Continue adding vent components, locking each succeed-
ing component into place.
• Ensure that each succeeding vent component is secure-
ly fitted and locked into the preceding component.
• 90° elbows may be installed and rotated to any point
around the preceding component’s vertical axis. If an el-
bow does not end up in a locked position with the pre-
ceding component, attach with a minimum of two (2)
sheet metal screws.
Figure 19. Adding Venting Components
3. Install Support Brackets
For Horizontal Runs - The vent system must be supported
every five (5) feet of horizontal run by a horizontal pipe support.
To install support brackets for horizontal runs:
• Place the pipe supports around the vent pipe.
• Nail the pipe supports to the framing members.
For Vertical Runs - The vent system must be supported
every eight (8) feet (2.4m) 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 20. Installing Support Brackets
4. Install Firestops
For Horizontal Runs - Firestops are REQUIRED on both
sides of a combustible wall through which the vent passes.
NOTE: Model DVK-01TRD or SLK-01TRD does 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 distance from the floor to the center of the framing hole
should match dimensions D or E in Figure 4 (page 12). The
center of the framing hole is one (1) inch (25.4mm) above
the center of the horizontal vent pipe.
• Position the firestops on both sides of the hole previ-
ously cut and secure the firestops with nails or screws.
• The heat shields of the firestops MUST BE placed to-
wards the top of the hole.
• Continue the vent run through the firestops.
Figure 21. Hole and Vent Pipe
HEAT SHIELD
INTERIOR
FIRESTOP
Figure 22. Heat Shield, Interior & Exterior Firestops
23
12" or 10"
(305mm or 254mm)
1" (25.4 mm)
VENT PIPE
TRIM HEAT
SHIELD IF TOO
LONG, ADD TO
SHIELD IF TOO
SHORT
EXTERIOR
FIRESTOP
12" or 10"
(305mm or
254mm)