Heat & Glo Fireplace HEAT & GLOW XLR-N-AU - Manual (Page 31)

31 Heat & Glo • XLR-N-AU, XLR-PB-AU • 2198-906 Rev. o • 1/13
Note: Heat shields MUST overlap by a minimum of 1-1/2 in. (38 mm).
• SLP heat shield - designed to be used on a wall 4-3/8 in. (111 mm) to 7-1/2 in. (194 mm) thick.
• If wall thickness is less than 4-3/8 in. (111 mm) the existing heat shields must be field trimmed.
If wall thickness is greater than 7-1/2 in. (194 mm) a DVP-HSM-B will be required.
2-1/2 in. (64 mm)
top clearance
1/2 in. (13 mm)
clearance
bottom & sides
1 in.
(25 mm)
bottom
clearance
Heat
Shield
Wall
Shield
Firestop
Heat
Shield
WALL
3 in. (76 mm)
top clearance
1 in. (25 mm)
clearance around
vertical sections
A. Pipe Clearances to Combustibles
WARNING! Risk of Fire! Maintain air space clearance to
vent. DO NOT pack insulation or other combustibles:
• Between ceiling firestops
• Between wall shield firestops
• Around vent system
Failure to keep insulation or other material away from
vent pipe may cause over heating and fire.
8
Vent Clearances and Framing
Figure 8.2 Wall Penetration
* Shows center of vent framing hole for top venting. The center of the hole
is one 10 in. (254 mm) above the center of the horizontal vent pipe.
Figure 8.1 Horizontal Venting Clearances To Combustible
Materials
A* B
4 ft. (1220 mm) 4 ft. (1200 mm)
A
10 in.
(254 mm)
B
DO NOT PACK WITH
INSULATION OR
OTHER MATERIAL
10 in.
(254 mm)
B. Wall Penetration Framing
Combustible Wall Penetration
Whenever a combustible wall is penetrated, you must
frame a hole for the wall shield firestop(s). The wall shield
firestop maintains minimum clearances and prevents cold
air infiltration.
• 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 firestop 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.
• See Section 10.K. 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
10 in. (254 mm) greater than the pipe is acceptable.
Whenever a non-combustible wall is penetrated, the wall
shield firestop is only required on one side and no heat
shield is necessary.