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M. Install the desired termination - See the
horizontal venting figures for application re-
strictions on the round termination (SV4.5HTR).
1. Install the square (SV4.5HTS) or short square
termination (SV4.5HTSS) - For the last step ,
from outside the exterior wall, slide the collars of
the termination into the adapter (see Figure 31 )
until the termination seats against the exterior wall
surface to which it will be attached. Orient the
housing of the termination with the arrow pointed
upwards. Secure the termination to the exterior
wall. The horizontal termination must not be
recessed into the exterior wall or siding by more
than the 1 " (32 mm) as shown in Figure 31 .
2. Install the long square termination
(SV4.5HTSSL) - For the last step , from outside
the exterior wall, slide the collars of the termi-
nation onto the last vent section (see Figure 32 )
until the termination seats against the exterior
wall surface to which it will be attached.
HORIZONTAL VENT FIGURES/TABLES
T
A
B
E L
3
-
V
n e
i t
g n
C
W
a
l l
h T
c i
n k
s e
e s
, s
W
h
S
q
a u
e r
T
r e
m
i
a n
i t
n o
S (
V
4
5 .
H
T
S
) S
V
n e
i t
g n
C
o
m
p
n o
n e
R
e
u q
r i
d e
T
r e
m
n i
i t a
n o
K
t i
O
T
r e
m
n i
i t a
n o
i K
a t
d n
6
e s
i t c
n o
S (
V
. 4
L 5
T
r e
m
n i
i t a
n o
i K
a t
d n
2 1
e s
i t c
n o
S (
V
4
5 .
1 L
T
r e
m
n i
i t a
n o
i K
a t
d n
e T
e s
i t c
n o
S (
V
. 4
L 5
) A
a
d n
e v
t n
e s
i t c
n o
S (
V
. 4
*Note: See Figure 35 for wall thickness range reductions when using
SV4.5HTS and SV4.5HTSS terminations.
SV4.5HTSS Termination Shown
Note - In applications where the wall thickness is less than 6 inches
(152 mm), field shortening of the termination collar may be required.
See Table 3 as an aid in venting component selection for a particular
range of exterior wall thicknesses.
The round horizontal termination (SV4.5HTR) may not be used.
Figure 34
Rear Vent - NO ELBOWS - with SV4.5HTS SQUARE OR
-
SV4.5HTSS SHORT SQUARE TERMINATION
16
Orient the housing of the termination with the
arrow pointed upwards. Secure the termina-
tion to the exterior wall. The horizontal termi-
nation must not be recessed into the exterior
wall or siding by more than the 1 " (32 mm)
as shown in Figure 32 .
3. Install the round termination (SV4.5HTR)
– See Figure 33 for an illustration of the round
termination. For the last step, from outside the
exterior wall, slide the collars of the termina-
tion onto the adapter (same as shown in Fig-
ure 31 for the SV4.5HTSS short square termi-
nation) until the termination seats against the
exterior wall surface to which it will be at-
tached. Orient the housing of the termination
with the arrow pointed upwards. Secure the
termination to the exterior wall.
o
m
p
n o
n e
s t
R
e
u q
r i
d e
f
r o
V
r a
o i
n e
U
i s
g n
A
y n
f o
T
e h
e s
T
r e
m
i
S (
V
4
5 .
H
T
) S
S
m
a
l l
S
q
a u
e r
T
r e
R
u o
d n
T
r e
m
i
a n
i t
n o
S (
V
4
5 .
H
s t
x E
e t
i r
r o
W
a
l l
T
i h
n i
h c
s e
(
m
n
y l
6
o t
0 1
1
4 /
1 (
2 5
. n i
e v
t n
0 1
1
4 /
o t
4 1
3
4 /
2 (
) 6
. n i
e v
t n
6 1
3
4 /
o t
*
0 2
3
4 /
4 (
) 2
e l
c s
p o
c i
6
. n i
1 1
3
4 /
o t
*
1 2
3
4 /
2 (
L 5
) 6
28 in. (711 mm)
Maximum
20 in. (508 mm)
Maximum
*When using Secure Flex,
use Firestop/Spacer
(SF4.5HF)
*Wall Firestop/Spacer
(SV4.5HF)
Note: Secure Vent components (rigid vent pipe and terminal) are shown in
the figures; Secure Flex components (flexible vent pipe and terminal) may also
s u
x E
e t
i r
r o
be used.
a n
i t
n o
K
s t i
-
Note: SV4.5BF (Secure Vent), SF4.5BF (Secure Flex) firestop/spacer must be
m
i
a n
i t
n o
used anytime vent pipe passes through a combustible floor or ceiling. SV4.5HF
T
) R
(Secure Vent), SF4.5HF (Secure Flex) firestop/spacer must be used anytime
k c
e n
s s
s e
vent pipe passes through a combustible wall.
m
)
o t
6 2
) 0
Note: Two 45 degree elbows may be used in place of one 90 degree elbow. The same
0 6
o t
7 3
) 5
rise to run ratios, as shown in the venting figures for 90 elbows, must be followed if
45 degree elbows are used.
5 2
o t
*
2 5
) 7
Note: It is very important that the horizontal/inclined run be maintained
in a straight (no dips) and recommended to be in a slightly elevated
8 9
o t
*
5 5
) 2
plane, in a direction away from the fireplace of
per meter) which is ideal, though rise per foot run ratios that are smaller are
acceptable all the way down to at or near level.
WARNING: UNDER NO CIRCUMSTANCES MAY SEPARATE SECTIONS
OF CONCENTRIC FLEXIBLE VENT PIPE BE JOINED TOGETHER.
The round horizontal termination (SV4.5HTR) may not be used.
Figure 35
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
The SV4.5HTR Round Termination may not
be used when the appliance is vented di-
rectly out the wall from the rear as shown in
Figures 34 and 35 .
Do Not recess the SV4.5HTR round termina-
tion at all.
Figure 33
SFHRK Snorkel Cap –The snorkel cap is de-
signed to be fitted into a basement window
box. The SFHRK cap is for use with flex vent
The vertical distance between the inlet and
outlet of the cap is 28 in. (711 mm). pipe.
28 in. (711 mm)
Maximum.
10
to 20 in.
(273 to 508 mm)
*Wall Firestop/Spacer
*When using Secure flex,
12 in. Vent Section
use Firestop/Spacer
(SV4.5L12)
Note - It may be necessary to cut the termination collar
in some applications.
Rear Vent - NO ELBOWS - with SV4.5HTSSL
-
LONG SQUARE TERMINATION
See Horizontal Venting
Figures and Tables for
Use Restrictions
SV4.5HTR Horizontal
Round Termination
" rise per foot (20 mm
(SV4.5HF)
SF4.5HF)
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