G115 Direct Vent Installation Instructions

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Figure 2: Permissible exhaust termination locations.
The venting system is only for a single appliance. Venting of an additional appliance could cause
serious injury or loss of life. The venting system shall not be routed into, through, or within any other
vent, such as an existing masonry or factory-built chimney. Screens on intake and exhaust terminals must
be kept in good working order to prevent debris from entering the venting system.
Sealing of the Vent Piping:
The discharge side of the sealed combustion venting system operates under a slight positive pressure. It is
of vital importance to seal all flue joints and screw penetrations to prevent leakage of flue gases into the
building. Pipe joints and other possible flue gas leakpaths should be sealed with high temperature silicone
(500 ºF rated silicone, G.E. 106 or equivalent), or high temperature tape (360 ºF rated aluminum foil tape,
VentureTape 3520CW or equivalent) as necessary.
The venting system shall not be pierced under any circumstance after initial installation.
Combustion measurements shall be performed at the exhaust termination and/or overfire. The breeching
can be pierced for testing as long as the hole is sealed airtight with a bolt, washers and high temperature
silicone.
Figure 2