31
FIGURE 6-20 Flue on Roof, Indoor Combustion Air
Combustion air and Vent Piping Length Page 26.
6 - COMBUSTION AIR AND VENT PIPING
FIGURE 6-21 Flue on Sidewall, Inside Combustion Air
Combustion air and Vent Piping Length Page 25.
NOTICE
Configurations of single pipe vent with flue on
sidewall, requires tee as vent terminal. See figures
6-21 and 6-23.
Vent
Combustion
Air
Ground Level
Snow line
Maintain
12"(305mm) US
(18"(457mm)
Canada) clearance
above highest
anticipated snow
line
Combustion
Air
Vent
24" (610mm)
* Minimum Length
Maintain 12"(305mm) US
(18"(457mm) Canada)
minimum clearance above
highest anticipated snow level
maximum 24" (610mm) above
roof
18" Vertical
Clearance to
ventilated soffit
P/N 240011654, Rev. C [06/08/2017]