29
Heat & Glo • 6X-AU Installation Manual • 2508-980 Rev. C
• 3/18
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 could cause overheating and fire.
5
Vent Clearances and Framing
Figure 5.1 Horizontal Venting Clearances To Combustible
Materials - Generic Fireplace Shown
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
.
• If wall thickness is less than 4 in. (102 mm) the existing heat shields must be field
trimmed. If wall thickness is greater than 7-1/4 in. (184 mm) a DVP-HSM-B will be
required.
3 in. (76 mm)
top clearance
1 in. (25 mm)
clearance
bottom & sides
Heat
Shield
Wall
Shield
Firestop
Heat
Shield
WALL
DVP Pipe
B. Wall Penetration Framing/Firestops
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.
These clearances are maintained by using a DVP-WS
(DVP pipe). See Figure 5.2 for framing instructions.
• For external walls: The wall shield firestop is included
with the termination cap assembly.
• For internal walls: A wall shield firestop must be pur
-
chased and installed.
• 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 firestop is required on one
side only on interior walls. If your local inspector re-
quires a wall shield firestop on both sides, then both
wall shield firestops must have a heat shield (refer to
Section 12.A.) attached to them.
• See Section 7.F. for information for regarding the in-
stallation of a horizontal termination cap.
Figure 5.2 Wall Penetration
* Shows center of vent framing hole for top or rear venting. The center of the
hole is one (1) in. (25 mm) above the center of the horizontal vent pipe.
A*
B*
C
D
6X-AU
in.
42-3/4
27-7/8
41-3/4
26-7/8
mm
1086
708
1060
683
A*
B*
10 in.
12 in.
C
D
10 in.
12 in.
DO NOT PACK HOLE
WITH INSULATION OR
OTHER MATERIAL.
(254 mm)
(254 mm)
(305 mm)
(305 mm)
N
on-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 firestop is only required on one side and no heat
shield is necessary.