Royal R-3500TR Installer's Manual page 35

1. Cut the ceiling hole.
2. Add the new framing
members.
This shows a ceiling
installation.
• Drill a hole or drive a nail through this centerpoint.
• Check the floor above for any obstructions, such as
wiring or plumbing runs.
• Reposition the fireplace and vent system, if neces-
sary, to accommodate the ceiling joists and/or
obstructions.
• Cut an 11-inch X 11-inch (280 mm X 280 mm) for
D-series or 10-inch X 10-inch (254 mm X 254 mm)
for SLD-series pipe hole through the ceiling, using
the centerpoint previously marked.
• Frame the hole with framing lumber the same size
as the ceiling joists.
11" (280 mm) or
10" (254 mm)
NEW
FRAMING
MEMBERS
CEILING
Figure 30. Hole and New Framing Members
If the area above the ceiling is NOT an attic, position
and secure the ceiling firestop on the ceiling side of
the previously cut and framed hole.
CEILING
NAILS (4 REQUIRED)
Figure 31. Ceiling Firestop (Ceiling Side)
11" (280mm) or
10" (254mm)
CHIMNEY
HOLE
EXISTING CEILING
JOISTS
JOIST
CEILING FIRESTOP
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