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NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Vertical Terminations
(Use 6-5/8” Direct-Vent Pipe)
The shaded areas in the diagram below show all allowable combinations
of straight vertical and offset to vertical (maximum four 45º elbows or two
90º elbows) vent configurations with vertical terminations. The termina
-
tion must fall within the shaded areas on the diagram. Use the restrictor
positions indicated. The maximum offset length at a 45º angle consists
of one three foot and one four foot section of pipe. The maximum height
is 30 feet (9.1 M) and the minimum is 10 feet (3 M).
Vertical Terminations
Restrictor
Position #2
5 Ft. 2 In. (1.6M)
Maximum
Restrictor
Position #1
Horizontal Terminations
(Use 8” Direct-Vent Pipe)
The shaded areas in the diagram below show all allowable combinations
of vent configuration with horizontal terminations. Horizontal sections
of pipe require 1/4” (6.4 mm) of rise for every 12” (305 mm) of run.
A second 90º or 45º elbow (in addition to the first 90º elbow at the top
of the vertical length of pipe) is allowed as long as the overall length of
the horizontal run of pipe does not exceed those shown below. Use the
restrictor positions indicated. If the fireplace is vented with an elbow
directly off the top of the flue collar and three to four feet of horizontal
pipe is used, then no restrictor is to be installed in the fireplace.
Horizontal Terminations
Restrictor
Position #2
Restrictor
Position #3
Restrictor Position #4
No Restrictor
Snorkel Terminations: For installations requiring a vertical rise on the exterior
of the building, 14-inch (356 mm) and 36-inch (914 mm) tall snorkel terminations -
Security™ #SV5STC14 or SV5STC36 and Simpson #1281 or 1282 are available. Follow
the same installation procedures as used for standard horizontal terminations. If the
snorkel termination must be installed below grade (i.e. basement application), proper
drainage must be provided to prevent water from entering the snorkel termination.
Do not attempt to enclose the snorkel within the wall or any other type of enclosure.
On vinyl siding, furring strips may be used to ensure that the snorkel is not recessed
into the siding. NEVER install the snorkel upside down.
18 Ft.
(5.5M)
15 Ft.
(4.6M)
10 Ft.
(3M)
5 Ft.
(1.5M)
0 Ft.
(0M)
0 Ft.
(0M)
5 Ft.
(1524M)
10 Ft.
(3M)
15 Ft.
(4.6M)
20 Ft.
(6M)
15 Ft.
(4.6M)
20 Ft.
(6M)
5 Ft.
(1524M)
0 Ft.
(0M)
0 Ft.
(0M)
5 Ft.
(1524M)
10 Ft.
(3M)
30 Ft.
(9M)
25 Ft.
(7.6M)
Figure 22
Figure 23