Burnham K2WTC - Page 41

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VII. Venting D. Design Requirements Unique to Split Vent Systems (continued)
Figure 7.24a: Split Vent System (PP Flex in Abandoned Masonry Chimney) (Vent Options 15-17)
CLEAN, TIGHT
UNUSED CHIMNEY
BASE SUPPORT
AND ELBOW FOR
PPs FLEX PIPE
EXTERIOR
WALL PLATE
PVC AIR
INTAKE PIPE
DURAVENT POLYPRO
VENT PIPE
OUTSIDE WALL
PPs FLEX
PVC ELBOW
WITH RODENT
SCREEN
NORMAL SNOW
LINE ABOVE
GROUND LEVEL
EXHAUST
NOTE: DURAVENT POLYPRO FLEX
COMPONENTS SHOWN.
10" OR LESS
12" MIN
BOILER