Horizontal Terminations; Vertical Terminations - Lennox Hearth Products Ravelle 30 Installation And Operation Manual

Horizontal Terminations
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.
Horizontal Terminations
0 Ft.
(6M)
Restrictor
Position #
15 Ft.
(4.6M)
10 Ft.
(3M)
5 Ft.
(1.5M)
0 Ft.
(0M)
0 Ft.
(0M)
Figure 19
Snorkel Terminations:
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 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.
Restrictor
Position #3
Restrictor
Position #4
No Restrictor
5 Ft.
10 Ft.
(154M) (3M)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Vertical Terminations
The diagram to the below shows all allowable combinations of straight
vertical and offset to vertical vent configurations with vertical terminations.
The termination must fall within the shaded areas on the diagram. Use
the restrictor positions indicated. Offsets may consist of two 90º elbows
OR two 45º elbows. The minimum termination height is 11 feet (3.4 M)
and the maximum is 33 feet (10M).
30 Ft.
(9.1M)
Restrictor
Position #1
5 Ft.
(7.6M)
0 Ft.
(6M)
15 Ft.
(4.6M)
10 Ft.
(3M)
5 Ft.
(1.5M)
0 Ft.
(0M)
14 Ft.
(4.3M)
0 Ft.
(0M)
Figure 20
Vertical Terminations
16' Maximum
Restrictor
Position #
Restrictor
Position #5
5 Ft. 10 Ft.
(3M)
(154M)
15 Ft.
(4.6M)
17