Posted on Jan 21, 2019

Status Inspection & Design ®

Status Inspection & Design
Fresh Catch of the Day # 39
Combustion Air and Vent Piping
of Condensing Gas Furnace

In this direct vent (2-pipe) system, fresh air is drawn from outdoors into the furnace via the upper pipe and the exhaust gases are expelled to the outdoors via the lower pipe.

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