6.7.2a
Horizontal with concentric termination figure 12A
Vertical vent and horizontal air intake
28
Examples vent and air supply systems (parallel)
Wall thickness for vent termination installation:
Minimum:
100mm / 4"
Maximum:
508mm / 20"
Vertical with concentric termination
figure 12C
Examples sealed combustions
Horizontal with parallel termination
12" OVER
MAXIMUM
SNOW LEVEL
OR 24"
WHICHEVER IS
GREATER
Vertical with parallel termination
figure 12D
figure 12E
figure 12B
10" MINIMUM INSIDE EDGE
T`O INSIDE EDGE