Owner`s manual

30786-7-0415 Page 31
Figure 39
Acceptable vertical and horizontal vent run.
Unacceptable vertical and horizontal vent run.
Venting Graph (Dimensions in Feet)
VERTICAL DIMENSION FROM THE BOTTOM OF THE UNIT
TO THE CENTER OF THE FLUE OUTLET
WITH VERTICAL
OR HORIZONTAL TERMINATION CAPS
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
HORIZONTAL RUN
REAR EXIT - VERTICAL AND HORIZONTAL TERMINATION
(DIMENSIONS IN FEET)
REAR HORIZONTAL
VENT CONNECTION
B
A
NOTE: FLEX VENT
MAXIMUM HEIGHT
IS 35 FEET
To Use the Vent Graph (Figure 39)
1. Determine the height of the center of the
horizontal vent pipe. Using this dimension on the
Sidewall Vent Graph, locate the point it intersects
with the slanted graph line.
2. From the point of this intersection, draw a vertical
line to the bottom of the graph.
3. Select the indicated dimension, and position the
unit in accordance with same.
EXAMPLE A:

12 feet, 4 inches the horizontal run to the outer wall

EXAMPLE B:

6 feet, 9 inches, the horizontal run to the outer wall

SPECIAL NOTE: For each 45 degree elbow installed
in the horizontal run, the length of the horizontal
run MUST be reduced by 18" (45cm). This does
not apply if the 45 degree elbows are installed on
the vertical part of the vent system. Reduce 3' for
every 90° elbow.
Example: According to the chart the maximum
horizontal vent length is 20' and if two 45 degree
elbows are required in the horizontal vent it must
be reduced to 17'.
The maximum number of 45 degree elbows permitted
per side wall installation is two (2). These elbows can
be installed in either the vertical or horizontal run.
VENTING FIREPLACE - REAR