Heat-N-Glo HV-CDN Installer's Manual page 16

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.
FLUE
OUTLET
1"MIN.
(25.4mm)
Figure 14. 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 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 10-inch by 10-inch (254mm X 254mm) hole for SL-
D series pipe.
NOTE: The center of the hole is one (1) inch (25.4mm)
above the center of the horizontal vent pipe.
WALL
BRACKET
WALL STUD
8 FT
(2.4mm)
• 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.
NOTE: There must be NO INSULATION or other
combustibles inside the framed firestop opening.
Figure 15. Hole and Vent Pipe
HEAT SHIELD
INTERIOR
FIRESTOP
Figure 16. Heat Shield, Interior & Exterior Firestops
18
10"
(254mm)
1" (25.4 mm)
VENT PIPE
TRIM HEAT
SHIELD IF TOO
LONG, ADD TO
SHIELD IF TOO
SHORT
EXTERIOR
FIRESTOP
10"
(254mm)