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6.7.2 b
Horizontal with concentric termination
Vertical vent and horizontal air intake
34
Examples vent and air supply systems (parallel)
Wall thickness for vent termination installation:
Minimum:
100mm / 4"
Maximum:
508mm / 20"
figure 18A
Vertical with concentric termination
figure 18C
Examples sealed combustions
Horizontal with parallel termination
12" OVER
MAX. SNOW
LEVEL OR 24"
WHICHEVER
IS GREATER
figure 18D
figure 18B
10" MINIMUM INSIDE EDGE
TO INSIDE EDGE
Vertical with parallel termination
figure 18E
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