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38
(304.8mm)
minimum
3” (76.2mm)
minimum
A06674
Fig. 43 -- Crawlspace Termination
HORIZONTAL TO ROOF HORIZONTAL TO SIDEWALL
VERTICAL TO SIDEWALLVERTICAL TO ROOF
VENT PIPE
COMBUSTION-AIR PIPE COMBUSTION-AIR PIPE
VENT PIPE
COMBUSTION-AIR PIPE
VENT PIPE
COMBUSTION-AIR PIPE
VENT PIPE
12″ MIN
12″ MIN
12″ MIN
(304.8mm)
12″ MIN
(304.8mm)
NOTE: A 12-in. (304.8mm) minimum offset pipe section is recommended
with short (5 to 8 ft / 1.5 to 2.5M) vent systems. This recommendation
is to reduce excessive condensate droplets.
(305mm)
(305mm)
A96230
Fig. 44 -- Short Vent (5 to 8 ft. / 1.5M to 2.4M) System
355CAV