Burnham K2WT Residential Installation, Operating And Service Instructions page 40

VII. Venting
D. Design Requirements Unique to Split Vent Systems (continued)
UNUSED CHIMNEY
Figure 7.24a: Split Vent System (PP Flex in Abandoned Masonry Chimney) (Vent Options 33-38)
40
EXHAUST
CLEAN, TIGHT
BASE SUPPORT
AND ELBOW FOR
PPs FLEX PIPE
EXTERIOR
WALL PLATE
NOTE: DURAVENT POLYPRO FLEX
COMPONENTS SHOWN.
PPs FLEX
DURAVENT POLYPRO
VENT PIPE
PVC AIR
INTAKE PIPE
BOILER
OUTSIDE WALL
PVC ELBOW
WITH RODENT
SCREEN
12" MIN
NORMAL SNOW
LINE ABOVE
GROUND LEVEL
10" OR LESS
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