88-A952V001-1B-EN
33
COMBUSTIBLE MATERIAL WALL
A minimum clearance of 1" to combustible materials must be
maintained when using single wall stainless steel venting.
Shield material to be a minimum of 24 gauge stainless or aluminized
sheet metal. Minimum dimensions are 12"x12". Shield must be
fastened to both inside and outside of wall. Use screws or anchor type
fasteners suited to the outside or inside wall surfaces.
COUPLING
(PLASTIC
VENTING)
STUD
PVC WALL
MOUNT FLANGE
(OPTIONAL)
APPROVED
TERMINATION
1” CLEARANCE
(AIR SPACE)
VENTING THROUGH COMBUSTIBLE WALLS
Pitch - 1/4 Inch Per Foot
CLEARANCE (0” ACCEPTABLE FOR PVC VENT PIPE)
(1” ACCEPTABLE FOR TYPE 29-4C STAINLESS STEEL VENT PIPE)
12” MINIMUM ABOVE
NORMALLY EXPECTED
SNOW ACCUMULATION
LEVEL
6 IN. MIN.
(TO JOINT)
NONCOMBUSTIBLE MATERIAL WALL
The hole through the wall must be large enough to maintain pitch of
vent and properly seal.
Use cement mortar seal on inside and outside of wall.
COUPLING
(PLASTIC
VENTING)
PVC WALL
MOUNT FLANGE
(OPTIONAL)
APPROVED
TERMINATION
CEMENT
MORTAR SEAL
INSIDE &
OUTSIDE
VENTING THROUGH NON-COMBUSTIBLE WALLS
Pitch - 1/4 Inch Per Foot
12” MINIMUM ABOVE
NORMALLY EXPECTED
SNOW ACCUMULATION
LEVEL
6 IN. MIN.
(TO JOINT)
