13
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Note: Convert inches into metric equivalent
measurement, as follows:
Millimeters (mm) = Inches x 25.4
Centimeters (cm) = Inches x 2.54
Meters (M) = Inches x .0254
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Figure 17
SV4.5CGV-1
Termination
SV4.5FA OR
SV4.5FB Flashing
AND SV4.5SC
STORM COLLAR
u
SV4.5VF
Firestop/Spacer
SV4.5L6/12/24/36/48
Vent Sections
60' Max
(18.3 M)
1" (25.4 mm)
Minimum
Clearance to
Combustibles
u
When using Secure Flex
use Firestop/Spacer
SF4.5VF
Effective Vent Length
Model
Effective Length
SV4.5L6
4-1/2"
SV4.5L12
10-1/2"
SV4.5L24
22-1/2"
SV4.5L36
34-1/2"
SV4.5L48
46-1/2"
Table 7
SUPERIOR DIRECT-VENT GAS FIREPLACES • MODELS SLDVT-30/35/40/45 • INSTALLATION INSTRUCTIONS
VERTICAL TERMINATION SYSTEMS (ROOF)
See Figure 17 on Page 13 and Figures 25 through
27 on Pages 16 and 17 and their associated
Vertical Vent Tables which illustrate the various
vertical venting configurations that are possible
for use with these appliances.
Secure Vent™
pipe applications are shown in these Figures;
Secure Flex™
pipe may also be used. A Vertical
Vent Table summarizes each system’s minimum
and maximum vertical and horizontal length
values that can be used to design and install the
vent components in a variety of applications.
Both these vertical vent systems terminate
through the roof. The minimum vent height
above the roof and/or adjacent walls is speci-
fied in ANSI Z223.1-(latest edition) (In Canada,
the current CAN/CSA-B149.1 installation code)
by major building codes. Always consult your
local codes for specific requirements. A general
guide to follow is the Gas Vent Rule (refer to
Figure 5
on
Page 6)
.
Vertical (Straight) Installation
(Figure 17)
Determine the number of straight vent 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 (see Tables on this page and Page
35 - Vent Sections). Plan the vent lengths so
that a joint does not occur at the intersection of
ceiling or roof joists. Refer to the Vent Section
Length Chart.
