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CLEARANCES and HEIGHT REQUIREMENTS
Heat resistant material (minimum requirements) with no wooden mantel or other combustible projection:
To install the gas logs into a fireplace with no wooden mantel, shelf or other combustible projection above the fireplace
opening, measure the heat resistant material height, per Figure 4, then refer to TABLE A.
Heat resistant materials such as slate and marble must be at least 1/2" thick. Sheet metal should not be installed onto
combustible material.
IMPORTANT: If you cannot meet these minimum clearances you must operate the heater with chimney flue damper open.
Refer to "INSTALLING VENTED APPLICATIONS" found on page 17.
HEAT RESISTANT
MATERIAL
MEASUREMENT
12" or more
8" to less than 12"
Less than 8"
TABLE A - Heat Resistant Material Requirements with no Mantel or Combustible Projection
12
Heat
Resistant
Material
Figure 5 - Measuring Heat Resistant Material
REQUIREMENTS FOR SAFE INSTALLATION
DLX18/GLX18
All Models
Hood not required.
Hood not required.
Extend heat resistant
material to at least 8"
Measure
this
distance
Heater in
Fireplace or
Firebox
DLX/GLX 24 AND 28
All Models
Hood not required.
Extend heat resistent material to 12"
or install hood. See Figure 5.
Extend heat resistant material to at
least 8" and install hood. See Figure
5. OR, extend heat resistant material
to a height of at least 12".
14D2099
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