Wall Penetration Framing - Heatilator GDFL4136I Owner's Manual

COMBUSTIBLE SURFACE
DIRECTION
HEAT SHIELD
90º ELBOW
Figure 8.3
• If the combustible materials are not in place at the
time of install the elbow heat shield may be screwed
to the exhaust pipe (see Figure 8.4). Cut the tabs as
shown and bend down. Secure the heat shield to the
pipe maintaining 3 inch to 4 inch between the pipe and
shield.
SCREW
3 in.
(76 mm)
Figure 8.4
Heatilator • GDST4336I, GDFL4136I, GDCR4136I, GDCL4136I • 2129-900 Rev. W • 12/15
UP
C. Wall Penetration Framing
Combustible Wall Penetration
Whenever a combustible wall is penetrated, you must
frame a hole for the wall shield fi restop(s). The wall shield
fi restop maintains minimum clearances and prevents cold
air infi ltration.
• The opening must be framed on all four sides using the
same size framing materials as those used in the wall
construction.
• SLP pipe - A wall shield fi restop must be placed on each
side of an interior wall. A minimum 1-1/2 in. (38 mm)
overlap of attached heat shields must be maintained.
• DVP pipe - A wall shield fi restop is required on one side
only on interior walls. If your local inspector requires a
wall shield fi restop on both sides, then both wall shield
fi restops must have a heat shield (refer to Section 16.B)
attached to them.
• See Section 10.L for information for regarding the in-
stallation of a horizontal termination cap.
Non-Combustible Wall Penetration
If the hole being penetrated is surrounded by noncom-
bustible materials such as concrete, a hole with diameter
one inch greater than the pipe is acceptable.
Whenever a non-combustible wall is penetrated, the wall
shield fi restop is only required on one side and no heat
shield is necessary.
10 in.
12 in.
C
10 in. 12 in.
A*
B*
A* B*
43-3/4 in. 28 in.
* Shows center of vent framing hole for top or rear venting. The center of the
hole is one (1) inch (25.4 mm) above the center of the horizontal vent pipe.
Figure 8.5 Wall Penetration
Note: When terminating horizontally off the top of the unit
using SLP pipe, a 10 in. x 10 in. framing hole is required.
D
C D
42-3/4 in. 27 in.
37