Vent Clearances And Framing; Pipe Clearances To Combustibles; Wall Penetration Framing - Heat & Glo CERONA-36 Owner's Manual

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Vent Clearances and Framing

A. Pipe Clearances to Combustibles
WARNING! Risk of Fire! Maintain air space clearance to
vent. DO NOT pack insulation or other combustibles:
• Between ceiling fi restops
• Between wall shield fi restops
• Around vent system
Failure to keep insulation or other material away from
vent pipe may cause over heating and fi re.
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm).
DVP heat shield - designed to be used on a wall 4 in. to 7-1/4 in. (102 mm to 184
mm) thick.
wall thickness is greater than 7-1/4 in. a DVP-HSM-B will be required.
(DVP Pipe Shown)
Heat
Shield
3 in. (76 mm)
top clearance
clearance around
vertical sections
Figure 8.1 Horizontal Venting Clearances To Combustible
Materials
30
3 in. (76 mm)
top clearance *
Heat
Shield
clearance
Wall
bottom & sides
Shield
Firestop
WALL
Heat & Glo • Cerona-36, Cerona-42 • 2106-900 Rev. W • 9/15
B. 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.
• 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.J for information for regarding the in-
stallation of a horizontal termination cap.
Non-Combustible Wall Penetration
If the hole being penetrated is surrounded by non-com-
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.
Shows center of 10 inch x 12 inch vent framing holes for
top and rear venting. The center of the hole is one (1) inch
(25.4 mm) above the center of the horizontal vent pipe.
A
in.
Cerona-36
mm
in.
Cerona-42
mm
Figure 8.2 Wall Penetration
B
A B
61-1/2 60-1/2
1562 1537
72 71
1829 1803