30
440 01 1024 01
Specifications are subject to change without notice
Figure 26
Concentric Vent and Combustion--
Air Sidewall Termination
“A”
Vent
Dimension “A” is touching or 2
″
maximum separation.
25--22--02d
Vent
Combustion Air
1
″
Maximum
(TYP.)
Exhaust
Exhaust
“A”
“A”
Inlet
Figure 27
Sidewall Inlet Vent and Exhaust--
Air Termination
Dimension “A” is touching or 2
″
maximum separation.
12
″
Min. Grade or
Snow Level
18
″
Min. for
Cold Climates
(Sustained temperatures 0
°
F
and below for 24 or more con-
secutive hours)
8
″
Min.
20
′
Max.
8
″
Min.
Exhaust
8
″
Min.
8
″
Min.
20
′
Max.
Figure 28
Sidewall Inlet Vent and Exhaust--Air
Termination with Exterior Risers
Dimension “A” is touching or 2
″
maximum separation.
18
″
Min. for Cold Climates
(Sustained temperatures 0
°
F
and below for 24 or more con-
secutive hours)
Inlet
“A”
“A”
12
″
Min.
Grade or
Snow Level
12
″
Min.
Grade or Snow
Level
Exhaust
8
″
Min.
20
′
Max.
Figure 29
Rooftop Inlet Vent and Exhaust--
Air Termination
25--22--43
18
″
Min. for Cold Climates
(Sustained temperatures
0
°
F and below for 24 or
more consecutive hours)
Inlet
Figure 30
Recommended Alternate Installation
for Sustained Cold Weather (
--0
°
F &
below for 24 or more consecutive hours
)
OVERHANG
12
″
MIN
.
12
″
MIN. Ground Level
OR Snow Level
INLET
EXHAUST
90
°
Same Joist
Space
FRONT VIEW
SIDE VIEW
12
″
25- 23- 73
5. Concentric Termination
CARBON MONOXIDE POISONING, FIRE AND
EXPLOSION HAZARD.
Failure to follow this warning could result in
personal injury, death and/or property damage.
Inlet and outlet pipes may NOT be vented directly
above each other (standard vent terminals).
!
WARNING
Vent Termination Clearances
1. Determine termination locations based on clearances
specified in following steps and as shown in
Figure 8,
Figure 31
through
Figure 36.
2. The vent termination must be located at least 12
″
above
ground or normally expected snow accumulation levels.