Venting Fireplace - Empire Comfort Systems DVLT series Installation Instructions And Owner's Manual

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.
Figure 22 (DVLT36 and DVTT36)
Acceptable vertical and horizontal vent run.
(40' maximum vertical and 20' maximum horizontal)
Unacceptable vertical and horizontal vent run.
EXAMPLE A:
If the vertical dimension from the top of the unit is 35', the horizontal
run to the outer wall flange must not exceed 5'.
EXAMPLE B:
DV(LT,TT)36: If the vertical dimension from the top of the unit is
4.5', the horizontal run to the outer wall flange must not exceed 11'.
DV(LT,TT)42: If the vertical dimension from the top of the unit is
5', the horizontal run to the outer wall flange must not exceed 11' .
31259-3-0114

VENTING FIREPLACE

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.
NOTE: The first elbow does not get counted.
Figure 23 (DVLT42 and DVTT42)
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