Page 23
INSTALLATION STANDARDS
MATERIAL
UNITED STATES
CANADA
ABS
ANSI/ASTM D1527
PVC, sch 40
ANSI/ASTM D1785 or D2665
Air pipe material must be chosen
CPVC, sch 40
ANSI/ASTM F441
based upon the intended application of the boiler.
Single wall galv. steel
26 gauge
PRO TECH (FasNSeal)
HEAT FAB (Saf-T-Vent)
Z FLEX (Z-Vent)
SIZE
Boiler
Flue
Intake Air
Boiler
Intermediate
Flue
Intake Air
Boiler
Flue
Intake Air
Adapter Termination
Termination Adapter Adapter Termination
Termination Adapter Termination
Termination
399-600
F303759
FSBS4
FSAIH04
KB285600 9454BUREZ-1*
9492
9414TERM
2SVSLA04
2SVSTP04
2SVSTEX0490
FSRC4(R.C)
303888
5400CI
2SVSRCX04
750-850
F303759 FSBS6 FSAIH04
303888
Figure 14.
Approved Stainless Terminations and Adapters
HORIZONTAL INTAKE AND EXHAUST PVC VENT TERMINAL KITS
Size
2” PVC
3” PVC
4” PVC
6” PVC
S
tan
d
a
rd
C
on
c
en
tr
ic
C
A
00
6
0
0
0
F
lu
s
h
M
o
u
n
t
C
A
01
0
1
0
0
S
tan
d
a
rd
C
A
00
5
9
0
0
C
on
c
en
tr
ic
23
9
-4
4
0
6
9
-0
1
F
lu
s
h
M
o
u
n
t
C
A
01
0
1
0
1
S
tan
d
a
rd
F
lu
s
h
M
o
u
n
t
C
A
01
0
1
0
2
S
tan
d
a
rd
80
incl.
opt.
opt.
opt.
opt.
opt.
105
incl.
opt.
opt.
opt.
opt.
opt.
150
incl.
opt.
opt.
199/210
incl.
opt.
opt.
285
opt.
opt.
opt.
incl.
opt.
n/a
399
n/a
n/a
n/a
incl.
opt.
n/a
500
n/a
n/a
n/a
incl.
opt.
n/a
600
n/a
n/a
n/a
incl.
opt.
opt.
750
n/a
n/a
n/a
incl.
n/a
opt.
850
n/a
n/a
n/a
incl.
n/a
opt.
Concentric vent terminal = 10 ft. pipe length
incl.
incl.
opt.
opt.
opt.
opt.
HORIZONTAL INTAKE AND EXHAUST PVC VENT TERMINAL KITS
Size
2” PVC
3” PVC
4” PVC
6” PVC
S
tan
d
a
rd
C
on
c
en
tr
ic
C
A
00
6
0
0
0
F
lu
s
h
M
o
u
n
t
C
A
01
0
1
0
0
S
tan
d
a
rd
C
A
00
5
9
0
0
C
on
c
en
tr
ic
23
9
-4
4
0
6
9
-0
1
F
lu
s
h
M
o
u
n
t
C
A
01
0
1
0
1
S
tan
d
a
rd
F
lu
s
h
M
o
u
n
t
C
A
01
0
1
0
2
S
tan
d
a
rd
80
incl.
opt.
opt.
opt.
opt.
opt.
105
incl.
opt.
opt.
opt.
opt.
opt.
150
incl.
opt.
opt.
199/210
incl.
opt.
opt.
285
opt.
opt.
opt.
incl.
opt.
n/a
399
n/a
n/a
n/a
incl.
opt.
n/a
500
n/a
n/a
n/a
incl.
opt.
n/a
600
n/a
n/a
n/a
incl.
opt.
opt.
750
n/a
n/a
n/a
incl.
n/a
opt.
850
n/a
n/a
n/a
incl.
n/a
opt.
Concentric vent terminal = 10 ft. pipe length
incl.
incl.
opt.
opt.
opt.
opt.
Table 7.
PVC Vent Terminal Kits
Figure 15.
Required Combustion Air Pipe Material
air are acceptable, providing they conform to the
requirements in the applicable codes listed above.
In Canada, consult local building and safety codes or, in
absence of such requirements, follow CAN/CSA B149.
Ducted Combustion Air
The combustion air can be taken through the wall, or
through the roof. When taken from the wall, it must be
taken from out-of-doors by means of a horizontal wall
terminal, kit, See Table 7.
See Table 4 to select the appropriate diameter air
pipe. When taken from the roof, a field-supplied rain cap
or an elbow arrangement must be used to prevent entry
of rain water. (See Figure 17)
Use ABS, PVC, CPVC or galvanized pipe for the
combustion air intake. Route the intake to the
boiler as directly as possible. Seal all joints. Provide
adequate hangers. The unit must not support the
weight of the combustion air intake pipe. Maximum
linear pipe length allowed is shown in Table 4.
Subtract 5 allowable linear ft. (1.5m) for every elbow
used.
The connection for the intake air pipe is at the top of
the unit.
In addition to air needed for combustion, air shall also
be supplied for ventilation, including air required for
comfort and proper working conditions for personnel.
Refer to the applicable codes.
N
EO
T
HERM
Commercial Boilers and Water Heaters
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