Install The Ceiling Firestop - Heat & Glo SL-550BE-B Owner's Manual

C. Install the Ceiling Firestop
A ceiling fi restop MUST be used between
fl oors and attics.
• DVP pipe only - Frame an opening 10 in.
by 10 in. (254 mm by 254 mm) whenever
the vent penetrates a ceiling/fl oor (see
Figure 8.3).
• SLP pipe only - Frame opening 9 in. x 9
in. (229 mm x 229 mm) whenever the vent
penetrates a ceiling/fl oor (see Figure 8.3).
• Frame the area with the same sized lumber
as used in ceiling/fl oor joist.
• The ceiling fi restop may be installed above or
below the ceiling joists when installed with a
attic insulation shield. It must be under joists
between fl oors that are not insulated. Refer
to Figure 8.4.
• Secure with three fasteners on each side.
WARNING! Risk of Fire! DO NOT pack insu-
lation around the vent. Insulation must be kept
back from the pipe to prevent overheating.
Figure 6.3
INSTALLED BELOW CEILING
Figure 6.4 Installing the Attic Shield
Heat & Glo • SL-550BE-B, SL-550BE-IPI-B • 2158-900 Rev. H • 8/09
INSTALL ATTIC INSULATION SHIELDS
BEFORE OR AFTER INSTALLATION OF VENT SYSTEM
3 FASTENERS
PER SIDE
CEILING FIRESTOP
ATTIC ABOVE
A
A
A
PIPE
10 in. (254 mm)
DVP
9 in. (229 mm)
SLP
CEILING FIRESTOP
INSTALLED ABOVE CEILING
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