Royal R-3500TR Installer's Manual page 34

1. Cut the hole through
the wall.
2. Position the firestops.
3. Place the heat shield
to the top.
4. Continue the vent run.
34
• 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 top of the hole.
• Continue the vent run through the firestops.
1" (25.4 mm)
Figure 28. Hole and Vent Pipe
HEAT SHIELD
INTERIOR
FIRESTOP
Figure 29. Heat Shield, Interior and 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
vertical vent component.
• Mark the ceiling to establish the centerpoint of the
vent.
12" or 10"
(305mm or 254mm)
12" or 10"
(305mm or
254mm)
VENT PIPE
TRIM HEAT
SHIELD IF TOO
LONG, ADD TO
SHIELD IF TOO
SHORT
EXTERIOR
FIRESTOP