Operating instructions
27
FIGURE 6-10 Flue on Sidewall, Combustion Air on Roof 
FIGURE 6-11 Flue on Sidewall, Inside Combustion Air 
Combustion 
Air
Vent
12" (305mm)
Anticipated 
Snow Line
6 - COMBUSTION AIR AND VENT PIPING
NOTICE
Congurations of single pipe vent with ue on the 
sidewall, requires a tee as the vent terminal. See 
gures 6-10 and 6-11.
Maintain 12"(305mm) US 
(18"(457mm) Canada) 
clearance above highest 
anticipated snow level 24" 
(610mm) above roof
Ground Level
12" (305mm)
Anticipated 
Snow Line
Vent
Combustion 
Air
Ground Level










