26
Figure 15 - Concentric Vent Terminations
Combustion
Air
Vent
1" (25.4mm)
Maximum
Maintain 12"
clearance above
highest anticipated
snow level or grade
* See Note
Below
Vent
Combustion
Air
36"(0.9m) Minimum
Maintain US 12"(305mm)
Canada 18” (457mm)
clearance above highest
anticipated snow level or
grade
12" (305mm) Minimum
*Must be less than 4" (102mm) or greater than 24"
(610mm) Horizontal distance between end bells of each air
intake to prevent fl ue gas recirculation.
1" (25.4mm)
Maximum
Overhang
Figure 16 - Concentric Vent
COMBUSTION AIR AND VENT PIPE
Figure 17 - Concentric Vent Roof
Installation
A
ELBOW
(FIELD SUPPLIED)
B
STRAP
(FIELD SUPPLIED)
C 1” (26mm) Max.
To Next Page
Loading...
