5
If a hearth extension is to be field constructed, it must be
made of
non-combustible, inorganic material having an
effective thermal conductivity “K” of .84 BTU In/Ft2 Hr.F
or less at 1” thickness.
Thermal conductivity “K”
of materials can be obtained
from the manufacturer.
The minimum required thickness for any material could be
obtained by the following formula:
K factor x 1” = Thickness required
.84
If the hearth extension is to be raised, a
“Z” type metal
safety strip
must be used, see
figure 7 and 11.
OUTSIDE AIR KIT INSTALLATION
The installation of the outside air kit must be installed during
the rough framing of the fireplace due to the nature of it’s
location. Outside combustion air can be accessed through an
exterior wall or a vented crawl space (see figure
12
).
CAUTION: AIR INLET DUCTS MUST NOT
TERMINATE IN ATTIC SPACE.
Avoid installing outside air eyebrow in areas where inlet
opening may be blocked by snow, bushes or other obstacles. It
should also be located beyond the reach of small children.
The maximum height for the air inlet above platform of
fireplace is within 3 feet below the termination flue gas outlet.
For further details on the installation of the outside air kit,
please refer to the instructions included with the kit. For
operating instructions, please refer to your owner’s manual.
GAS LINE INSTALLATION
YOUR GAS SUPPLIER OR A QUALIFIED SERVICE
PERSON SHOULD DO GAS LINE HOOK-UP.
A gas line may be installed for the purpose of installing a
decorative gas appliance
available through your local
distributor. Use only ½” black iron pipe and appropriate
fittings. When installing a gas line, a shut-off valve designed
for installation outside the fireplace is recommended.
STEP 1:
To install, remove the knockout indentation on the
refractory (or firebrick) wall located approximately
2”
above
the refractory hearth floor. The knockout indentation must be
firmly tapped with any solid object until it is released. Remove
fragmented portion of refractory (see figure
13
).
Figure 10
Figure 12
Figure 11
NOTE: BEFORE YOU PROCEED, MAKE SURE YOUR
GAS SUPPLY IS
OFF!
