Concentric Vent and Combustion-
Air Sidewall Termination
Exhaust
25-22-02d
Dimension "A" is touching or 2" maximum separation.
1 Sidewall Inlet Vent andExhaust-AirTermination
8" Min.
18" Min. for
Cold Climates
(Sustained
Below 0o
F)
12" Min. Grade or
SnowLevel
__Dimension "A" is touchin_ or 2" maximum separation.
Sidewall Inlet Vent and Exhaust-Air
Termination with Exterior Risers
/// 18" Min. for Cold Climates
(Sustained Below 0° F)
8" Min.
Gradeor
SnowLevel
Dimension "A" is touchinq or 2" maximum separation.
Rooftop Inlet Vent and Exhaust-
Air Termination
18" Min. for Cold Climates F \ _
(SustainedBelow 0° F)
8"Min.
20'Max.
12" Min.
Level
/
Exhaust
25-22-43
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Recommended Alternate
Installation for Sustained
.............................................................................Cold Weather (-O° F & below)
_ OVERHANG
EXHAU_ k 12_MIN.
INLET
12" MIN.Ground Level
_ f OR Snow Level
FRONT VIEW
Same Joist
Space
SIDE VIEW
12"
25-23-73
44001 102102 [_