2. Continue Adding Vent Components
Refer to Cinch Pipe and Termination Cap installation in-
structions.
• 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 in the
vent system. Securing pipe sections with a maximum of
two screws is recommended.
• 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.
3. Install Support Brackets
Refer to Cinch Pipe and Termination Cap installation in-
structions.
4. Install Firestops
For Horizontal Runs - Firestops are REQUIRED on both
sides of a combustible wall through which the vent passes.
NOTE: Model DVP-TRAP does not need an exterior fir-
estop on an exterior combustible wall. The firestop is
built into the cap.
To install firestops for horizontal runs that pass through either
interior or exterior walls:
• Cut a 10" x 12" (254mm X 305mm) hole through the wall.
NOTE: The center of the 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.
NOTE: There must be NO INSULATION or other
combustibles inside the framed firestop opening.
INTERIOR
WALL SHIELD
Figure 23. 10" x 12" Hole and Vent Pipe
10"
12"
Heat & Glo • PIER-HV-IPI, ST-HV-IPI, L&R-COR-HV-IPI • 2005-900 Rev. M • 9/08
HEAT SHIELD
INTERIOR
FIRESTOP
Figure 24. Heat Shield, Interior & Exterior Firestops
For Vertical Runs - One ceiling firestop is REQUIRED at
the hole in each ceiling through which the vent passes.
To install firestops for vertical runs that pass through ceilings:
• Position a plumb bob directly over the center of the verti-
cal vent component.
• Mark the ceiling to establish the centerpoint of the vent.
• Drill a hole or drive a nail through this centerpoint.
• Check the floor above for any obstructions, such as wir-
ing or plumbing runs.
• Reposition the fireplace and vent system, if necessary,
to accommodate the ceiling joists and/or obstructions.
• Cut an 10-inch X 10-inch (254mm x 254mm) hole through
the ceiling, using the centerpoint previously marked.
• Frame the hole with framing lumber the same size as the
ceiling joists.
10" (254mm)
NEW
FRAMING
MEMBERS
CEILING
Figure 25 Hole & New Framing Members
TRIM HEAT
SHIELD IF TOO
LONG, ADD TO
SHIELD IF TOO
SHORT
EXTERIOR
FIRESTOP
10" (254mm)
CHIMNEY
HOLE
EXISTING CEILING
JOISTS
31