NONCOMBUSTIBLE |
|
|
HEARTH EXTENSION |
|
|
64 MIN. | 20 | 65 MIN. |
| 16 | |
| MIN. | |
| MIN. | |
|
| |
Figure 10 |
|
|
|
| NONCOMBUSTIBLE |
|
| HEARTH EXTENSION |
SECURE TO | AIR INLET | |
COLLARS WITH | ||
EYEBROW | ||
DUCT TAPE OR | ||
| ||
SCREWS |
|
AIR INLET
LOCATION
MUST ALLOW
FOR BUSHES
OR SNOW
| VENTED CRAWL |
| SPACE INSTALLATION |
| CHECK WITH LOCAL AREA CODES PRIOR TO |
Figure 12 | INSTALLING IN A VENTED CRAWL SPACE |
|
1 1/2" TYP
8" MAX
"Z" TYPE
EMBER PROTECTOR
NONCOMBUSTIBLE HEARTH EXTENSION
"K" FACTOR
.84
WARNING: AIR INLET DUCTS MUST NOT TERMI- NATE 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 firebox is within 3 feet below the termination flue gas outlet.
1 1/2" TYP | EMBER PROTECTOR |
| FOR RAISED FIREPLACE SEE SECTION |
Figure 11 | ON FRAMING WITH A RAISED PLATFORM |
If a hearth extension is to be field constructed, it must be made of noncombustible, inorganic material having an effective thermal conductivity "K" of .84 BTU In/Ft 2 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, page 5 and Figure 11.
OUTSIDE AIR KIT INSTALLATION
The installation of the outside air kit must be installed during the rough framing of the firebox due to the nature of its location. Outside combustion air can be accessed through an exterior wall or a vented crawl space (see Figure 12).
For further details on the installation of the outside air kit, please refer to the instructions included with the kit. For operating instruc- tions, please refer to your owner’s manual.
GAS LINE INSTALLATION
YOUR GAS SUPPLIER OR A QUALIFIED SERVICE PER- SON SHOULD DO GAS LINE HOOKUP.
WARNING: BEFORE YOU PROCEED, MAKE SURE YOUR GAS SUPPLY IS OFF!
A gas line may be installed for the purpose of installing a gas appliance available through your local distributor. Use only 1/2" black iron pipe and appropriate fittings. When installing a gas line, a
STEP 1: To install, remove the knockout indentation on the refrac- tory (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, page 7).
6 | 55505 |