Heat & Glo T-HVBI-AUB Owner's Manual page 19

D. Install Support Brackets
Refer to Cinch Pipe and Termination Cap installation
Instructions.
E. Install Firestops
For Horizontal Runs - Firestops are REQUIRED on
both sides of a combustible wall through which the
flue passes.
Note: Model DVP-TRAP2 does not need an exterior
firestop on an exterior combustible wall. The firestop is
built into the cap.
To install firestops (heat shield) for horizontal runs that
pass through either interior or exterior walls:
• Cut a 10 in. x 12 in. (254 mm x 305 mm) hole through
the wall.
Note: The center of the hole is 1 in. (25 mm) above the
center of the horizontal flue pipe.
• Position the firestops on both sides of the hole
previously cut and secure the firestops with nails or
screws.
• The heat shields of the firestops MUST BE placed
towards the bottom of the firestop.
• Continue the flue run through the firestop.
Note: There must be NO INSULATION or other com-
bustibles inside the framed firestop opening.
INTERIOR
WALL SHIELD
Figure 24. 254 mm x 305 mm Hole and Flue Pipe
10 in. (254 mm)
12 in . (305 mm)
Heat & Glo • ST-HVBI-AUB • 2082-980 Rev. R • 9/15
HEAT SHIELD
INTERIOR
FIRESTOP
Figure 25. Heat Shield, Interior & Exterior Firestops
For Vertical Runs - One firestop is REQUIRED at the
hole in each ceiling through which the flue passes.
To install firestops for vertical runs that pass through
ceilings:
• Position a plumb bob directly over the center of the
vertical flue component.
• Mark the ceiling to establish the centerpoint of the flue.
• Drill a hole or drive a nail through this center point.
• Check the floor above for any obstructions, such as
wiring or plumbing runs.
• Reposition the heater and flue system, if necessary,
to accommodate the ceiling joists and/or obstruc-
tions.
• Cut a 10" x 10" (254 mm X 254 mm) hole through the
ceiling, using the firestop pipe opening as a guide.
• Frame the hole with framing lumber the same size
as the ceiling joists.
10" (254 mm)
NEW
FRAMING
MEMBERS
CEILING
Figure 26. Hole & New Framing Members
TRIM HEAT
SHIELD IF TOO
LONG, ADD TO
SHIELD IF TOO
SHORT
EXTERIOR
FIRESTOP
10" (254 mm)
CHIMNEY
HOLE
EXISTING CEILING
JOISTS
19