Warning
Important!: Maintain at least the minimum separation of exhaust vent termination
from boiler intake air as illustrated in Figure 12 , Figure 13 , Figure 14 and Figure 15
. Failure to do so can result in a dangerous situation where exhaust gasses are re-
ingested with combustion air. Damage to the boiler can result from a failure to
maintain these separations. Third party vent termination kits and concentric wall
penetration kits that do not maintain these minimum separations must not be used.
Improper installation will void the warranty. Do not use proprietary InnoFlue or
PolyPro PP terminals without specific approval from IBC.
Figure 12 Vent termination clearance--horizontal
perforations
Figure 13 Vent termination clearances--
horizontal perforations, side view