33740-11-0816
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To Use the Vent Graph
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:
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EXAMPLE B:
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VENTING FIREPLACE
EXAMPLE C:
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must not be less than 7 feet 6 inches.
SPECIAL NOTE:
For each 45° elbow installed in the horizontal run,
the length of the horizontal run MUST be reduced by 18 inches.
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elbows are installed on the vertical part of the vent system.
Example:
According to the chart the maximum horizontal vent length
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it must be reduced to 17 feet.
The maximum number of 45° elbows permitted per side wall
installation is two. These elbows can be installed in either the vertical
or horizontal run.
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Note:
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Note:
A horizontal vent with the minimum required vertical rise (using
a 12 inch section of vent before the elbow) will use a maximum of a
9 inch section of horizontal vent before the termination.
Acceptable vertical and horizontal vent run.
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Unacceptable vertical and horizontal vent run.
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VENTING GRAPH (Dimensions in Feet)
Figure 32
