Filter
Top Products
16
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Vertical
Rise
SV4.5E90
Elbow
Horizontal / Inclined Run
SV4.5HT-2
Termination
Firestop/Spacer
SV4.5L6/12/24/36/48
Vent Sections
Support Bracket Spacing
Every 5 ft (1.52 m)
See Figure 19 on page 12 for
vertical vent section support.
SV4.5HT-2
Termination
Support
Brackets
Building
Support
Framing
Ceiling
Fireplace
Exterior
Wall
Exterior
Wall
TYPICAL HORIZONTAL VENT INSTALLATION
Figure 30
The unitized design of the Secure Vent compo-
nents will engage and seal both the inner and
outer pipe elements with the same procedure.
Sealant and securing screws are not required.
Note: An elbow may also be attached to the
appliance collar. Attach in the same manner as
you would a vent section.
Remember to maintain 1" (25 mm) clearance
to combustibles, framing members, and attic
or ceiling insulation when running vertical
chimney sections.
HORIZONTAL (OUTSIDE WALL)
TERMINATION SYSTEM
F. Install firestop/spacer at ceiling -
When using Secure Vent, use SV4.5VF firestop/
spacer at ceiling joists; when using Secure Flex,
use SF4.5VF firestop/spacer. If there is living
space above the ceiling level, the firestop/ spacer
must be installed on the bottom side of the
ceiling. If attic space is above the ceiling, the
firestop/ spacer must be installed on the top
side of the joist. Route the vent sections
through the framed opening and secure the
firestop/spacer with 8d nails or other appropri-
ate fasteners at each corner.
Secure Vent SV4.5 direct vent system compo-
nents are unitized concentric pipe components
featuring positive twist lock connection, (
refer to
Figure 17
on page 12). All of the appliances
covered in this document are fitted with collars
having locking inclined channels. The dimpled
end of the vent components fit over the appliance
collar to create the positive twist lock connection.
A. Plan the vent run -
Analyze the vent routing and determine the types
and quantities of sections required
4-1/2" (114 mm), 10-1/2" (267 mm), 22-1/2" (572
mm), 34-1/2" (876 mm) and 46-1/2" (1181 mm) net
section lengths are available. Plan the vent lengths
so that a joint does not occur at the intersection of
ceiling or roof joists. Make allowances for elbows as
indicated in
Figure 20 on page 12
.
Maintain a minimum 1" (25 mm) clearance to
combustibles on the vertical sections. Clearances
for the horizontal runs are; 3" (76 mm) on top, 1"
(25 mm) on sides, and 1" (25 mm) at the bottom.
B. Frame exterior wall opening -
Locate the center of the vent outlet on the
exterior wall according to the dimensions shown
in
Figure 9
on page 8. Cut and/or frame an
opening, 10-1/2" x 12-1/8" (267 mm x 308mm)
inside dimensions, about this center.
C. Frame ceiling opening - If the vertical
route is to penetrate a ceiling, use plumb line
to locate the center above the appliance. Cut
and/or frame an opening, 10-1/2" x 10-1/2"
(267 mm x 267 mm) inside dimensions, about
this center (refer to
Figure 16
on page 11 ).
G. Support the vertical run sections -
On the vertical run, support the venting sys-
tem every 8 feet (2.4m) above the fireplace
vent outlet with field provided support straps
(Plumber's tape).
Attach the straps to the vent
pipe and secure to the framing members with
nails or screws.
See
Figure 19 on page 12.
H. Change vent direction - At transition from
or to a horizontal/inclined run, install the
SV4.5E45 and SV4.5E90 elbows in the same
manner as the straight vent sections. The
elbows feature a twist section to allow them
to be routed about the center axis of their
initial collar section to align with the required
direction of the next vent run element. Twist
elbow sections in a clockwise direction only
so as to avoid the possiblity of unlocking
any of the previously connected vent sec-
tions. See
Figure 20 on page 13
.
I. Continue installation of horizontal/inclined
sections - Continue with the installation of the
straight vent sections in horizontal/inclined
run as described in Step E. Install support
straps every 5 ft. (1.52 m) along horizontal/
inclined vent runs using conventional
plumber’s tape. See
Figure 30
, it is very
important that the horizontal/inclined run be
maintained in a straight (no dips) and rec-
ommended to be in a slightly elevated plane,
in a direction away from the fireplace of
¹⁄₄"
rise per foot (20 mm 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
.
Use a carpenter’s level to measure from
a constant surface and adjust the support
straps as necessary.
E. Attach vent components to each other -
Other vent sections may be added to the previ-
ously installed section in accordance with the
requirements of the vent tables. To add another
vent component to a length of vent run, align the
dimpled end of the component over the inclined
channel end of the previously installed section,
adjusting the radial alignment until the four
locking dimples are aligned with the inlets of the
four incline channels of the previous section.
Push the vent component against the previous
section until it fully engages, then twist the
component clockwise running the dimples down
and along the incline channels until they seat at
the end of the channels.This seating position is
indicated by the alignment of the arrow and
dimple as shown in
Figure 18 on page 12.
D. Attach vent components to appliance - To attach
a vent component to the appliance collar, align the
dimpled end over the collar, adjusting the radial
alignment until the four locking dimples are aligned
with the inlets of the four incline channels on the
collar (
refer to Figure 17
on page 12).
Both of these horizontal vent systems terminate
through an outside wall. Building Codes limit or
prohibit terminating in specific areas. Refer to
Figure 8
on page 7 for location guidelines.
Figures 30, and Figures 34 to 40 on pages 18
to 20
and their associated Horizontal Vent
Table illustrate the various horizontal venting
configurations that are possible for use with
these appliances. Secure Vent pipe applica-
tions are shown in these figures; Secure Flex
pipe may also be used. A Horizontal Vent Table
summarizes each system’s minimum and maxi-
mum vertical and horizontal length values that
can be used to design and install the vent
components in a variety of applications.
Push the vent component against the collar until it
fully engages, then twist the component clockwise,
running the dimples down and along the incline
channels until they seat at the end of the channels.
It is important to maintain the required clear-
ances to combustibles: 1" (25 mm) at all sides
for all vertical runs; and 3" (76 mm) at the top,
1" (25 mm) at sides, and 1" (25 mm) at the
bottom for all horizontal/inclined runs