Install The Ceiling Firestop; Install Attic Insulation Shield - Heatilator GDST3831I Owner's Manual

C. Install the Ceiling Firestop
A ceiling fi restop MUST be used between
fl oors and attics.
• 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.
D. Install Attic Insulation Shield
WARNING! Fire Risk. DO NOT allow loose
materials or insulation to touch vent. Hearth
& Home Technologies requires the use of an
attic shield.
The International Fuel Gas Code requires an
attic shield constructed of 26 gauge minimum
steel that extends at least 2 in. (51 mm) above
insulation.
• Attic insulation shields must meet specifi ed
clearances to combustible materials and be
secured in place.
• An attic insulation shield kit is available from
Hearth & Home Technologies. Contact your
dealer to order. Install attic insulation shield
according to instructions included with kit.
32
Figure 8.3 Installing Ceiling Firestop
CEILING FIRESTOP
INSTALLED BELOW CEILING
Figure 8.4 Installing the Attic Shield
Heatilator • GDST3831I • 2127-900 Rev. N • 6/15
PIPE
SLP
INSTALL ATTIC INSULATION SHIELDS
BEFORE OR AFTER INSTALLATION OF VENT SYSTEM
ATTIC ABOVE
A
A
A
9 in. (229 mm)
CEILING FIRESTOP
INSTALLED ABOVE CEILING