Lennox Hearth ELITE VINT-DVS-U - Manual (Page 16)

16 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
8’ Max.
Restrictor
Position # 4
Restrictor
Position # 3
Restrictor
Position # 3
Restrictor
Position # 2
No Restrictor
18” Section of Pipe
Horizontal Terminations
The shaded areas in the diagram below show all allowable combinations
of vent configurations with horizontal terminations. Horizontal sections
of pipe require 1/4” of rise for every 12” of run. A second 90 degree or
45 degree elbow (in addition to the first 90 degree 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. Note that if the termination cap falls in the
unshaded area below then no restrictor is installed in the stove.
To install the stove with pipe directly out the back (as shown in Figure
21 on Page 14), a snorkel is required for this appliance. See Page 14 for
snorkel installation instructions.
Vertical Terminations
The diagram below shows all allowable combinations of straight verti­
cal and offset to vertical vent configurations with vertical terminations.
The termination must fall within the shaded areas on the diagram. Use
the indicated restrictor positions. Offsets may consist of two 90 degree
elbows OR four 45 degree elbows. The minimum termination height is
10’ and the maximum is 30 feet.
20 Feet
15 Feet
10 Feet
5 Feet
0 Feet
0 Feet 5 Feet
10 Feet
0 Feet
5 Feet
10 Feet
15 Feet
20 Feet
25 Feet
30 Feet
0 Feet 5 Feet
Figure 26
Figure 27