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FIGURE 22
TYPICAL
EXHAUST AND INTAKE PIPE CONNECTIONS IN UPFLOW DIRECT OR
NON−DIRECT VENT APPLICATIONS
TRANSITION
2”
2”
2”
3”
2”
2”
2”
or
Pipe size determined in table 5
DO NOT transition
from smaller to larger
pipe in horizontal runs
of exhaust pipe.
2”
EXHAUST INTAKE
TRANSITION
3”
2”
EXHAUST INTAKE
* When transitioning up in pipe size, use the shortest length of 2” PVC pipe possible.
FIGURE 23
2”
TRANSITION
2”
SIDE VIEW
2”
2”
2”
2”
or
TYPICAL EXHAUST AND INTAKE PIPE CONNECTIONS IN HORIZONTAL DIRECT
OR NON−DIRECT VENT APPLICATIONS
(RIGHT HAND DISCHARGE SHOWN)
3”
2”
45°
MAX
45°
MAX
DO NOT transition
from smaller to larger
pipe in horizontal runs
of exhaust pipe.
EXHAUST
12" max.
2”
2”
2”
or
2”
INTAKE
2”
TRANSITION
2”
3”
EXHAUST
INTAKE
* When transitioning up in pipe size, use the shortest length of 2” PVC pipe possible.
