NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
14 Figure 18
SV4.5CGV-1
Termination SV4.5FA or SV4.5FB
Flashing and SV4.5SC
Storm Collar
1” (25.4 mm)
Minimum
Clearance to
Combustibles
uSV4.5VF
Firestop / spacer
SV4.5L6 / 12 / 24 / 36 / 48
Vent Sections
uWhen using Secure
Flex use Firestop / spacer
SF4.5VF
40 ft. Max.
(12.2 M)
TRAHCHTGNELNOITCESTNEV
noitceSlanimoN )sehcni(htgneL 621426384T
O
T
A
L
Q
T
Y
noitceSteN )sehcni(htgneL 2/1-42/1-012/1-222/1-432/1-64
tneVfothgieHsnoitceStneVforebmuN
sehcnitf
44121100034
0515.21010034
5.451578.21110035
5.061573.31020035
5.271573.41000505
77157.41100506
38152.51010506
6815.51000044
5.091578.51100045
5.691573.61010045
5.502521.71011507
70252.71000606
5.112526.71100607
5.712521.81010607
5.922521.91001607
5.232573.91000055
73257.91100056
5.142521.02000707
6425.02100708
25212010708
46222001708
67232000808
97252.32000066
5.
082573.32100809
5.382526.32100067
5.982521.42010067
5.103521.52001067
5.013578.52000909
5135.621009001
5.523521.72000077
0335.72100078
63382010078
54357.82000 01001
5.943521.9210001011
27313000088
5.673573.13100089
5.973526.1300011011
5.814578.43000099
32452.531000901
56457.8300000101
VENT SECTION LENGTH CHART
Nominal Section Length (inches) 612 24 36 48Net Section Length (inches) 4 ½ 10 ½ 22 ½ 34 ½ 46 ½Height of Vent Number of Vent Sections*inches feet
T
OT
ALQT
YTRAHCHTGNELNOITCESTNEV
lanimoN htgneLnoitceS )sehcni( 621426384T
O
T
A
L
Q
T
Y
noitceSteN )sehcni(htgneL 2/1-42/1-012/1-222/1-432/1-64
tneVfothgieHsnoitceStneVforebmuN
sehcnitf
5.4573.0100001
957.0200002
5.01578.0010001
5152.1110002
5.91526.1210003
1257.1020002
5.22578.1001001
5.52521.2120003
5.13526.2030003
5.43578.2000101
5.73521.3111003
5.34526.3021003
5457.3002002
5.64578.3000011
5.94521.4102003
1552.4100012
5.55526.4012003
7557.4001102
6652.5022004
5.76526.5003003
9657.5000202
276103004
5.37521.6100203
5.97526.6010203
1857.6000112
095.7021014
5.
19526.7002013
3957.7000022
698101204
5.79521.8100023
2015.8200024
5.301526.8000303
8019100304
4115.9020024
71157.9105006
5.811578.9110305
6215.01001304
5.031578.01101305
53152.11006006
8315.11000404
5.931526.11000033
5.241578.11100405
VENT SECTION LENGTH CHART
Nominal Section Length (inches)612 24 36 48Net Section Length (inches) 4 ½ 10 ½ 22 ½ 34 ½ 46 ½Height of Vent Number of Vent Sections*inches feet
T
O
T
A
L
Q
T