FIGURE 12: Common Roof Venting
VERTICAL COMMON VENTING
SIDE VIEW
TOP VIEW
HORIZONTAL COMMON VENTING
Vent Adapter Stk. #19021
Burner Box
H
Vent Adapter Stk. #19021
Burner Box
Burner Box
Wall Thimble
(If Applicable)
Burner Box
H
Vent Adapter Stk. #19021
Wall Thimble
(If Applicable)
Burner Box
H
4" Aluminized steel Heat Exchange Tube
Approved Vent Cap
Flashing
Secure all joints with 3 (minimum) #8 x 3/8"
sheet metal screws and seal all joints.
D
Vent Cap
Type "B" Vent required outdoors.
Secure all joints with 3 (minimum) #8 x 3/8"
sheet metal screws and seal all joints.
D
Vent Cap
Type "B" Vent required outdoors.
D
4" Aluminized steel Heat Exchange Tube
14
Type "B" Vent required outdoors.
Roof
Burner Box
Burner Box
At least 1/4" per foot rise or pitch
must be maintained on horizontal
runs from heater to vent.
Burner Box
Outside Wall
Outside Wall
Burner Box
Burner Box