Venting Fireplace - Rear - Empire Comfort Systems DVD32 Installation Instructions And Owner's Manual

Direct-vent zero clearance gas fireplace heater

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Table Of Contents

Table of Contents

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:

If the vertical dimension from the floor of the unit is

12 feet, 4 inches the horizontal run to the outer wall

flange must not exceed 12 feet, 3 inches.

EXAMPLE B:

If the vertical dimension from the floor of the unit is

6 feet, 9 inches, the horizontal run to the outer wall

flange must not exceed 6 feet, 6 inches.

SPECIAL NOTE: For each 45 degree elbow installed

in the horizontal run, the length of the horizontal run

MUST be reduced by 18" (457 mm). 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. These elbows can be

installed in either the vertical or horizontal run.

NOTICE: When rear venting unit, adjust air shutter

from 1/16" open up to between 1/8" and 3/16" for

NAT gas.

Adjust air shutter from 1/4" open to between 5/16"

and to 3/8" for Propane Gas.

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