Heat & Glo ST-HVBI-AU Installation And Operation Instructions Manual page 18

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
fl ue passes.
Note: Model DVP-TRAP does not need an exterior fi re-
stop on an exterior combustible wall. The fi restop is built
into the cap.
To install fi restops (heat shield) for horizontal runs that
pass through either interior or exterior walls:
• Cut a 10-inch by 12-inch (254 mm X 305 mm) hole
through the wall.
Note: The center of the hole is one (1) inch (25.4 mm)
above the center of the horizontal fl ue pipe.
• Position the fi restops on both sides of the hole
previously cut and secure the fi restops with nails or
screws.
• The heat shields of the fi restops MUST BE placed
towards the bottom of the fi restop.
• Continue the fl ue run through the fi restop.
Note: There must be NO INSULATION or other com-
bustibles inside the framed fi restop opening.
INTERIOR
WALL SHIELD
Figure 22. 254 mm x 305 mm Hole and Flue Pipe
10" (254 mm)
12" (305 mm)
Heat & Glo • ST-HVBI-AU • 2082-900 Rev. J • 10/10
HEAT SHIELD
INTERIOR
FIRESTOP
Figure 23. Heat Shield, Interior & Exterior Firestops
For Vertical Runs - One fi restop is REQUIRED at the
hole in each ceiling through which the fl ue passes.
To install fi restops for vertical runs that pass through
ceilings:
• Position a plumb bob directly over the center of the
vertical fl ue component.
• Mark the ceiling to establish the centerpoint of the fl ue.
• Drill a hole or drive a nail through this center point.
• Check the fl oor above for any obstructions, such as
wiring or plumbing runs.
• Reposition the heater and fl ue 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 fi restop 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 24. 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
18