11
01/21
7082-153K
E. Hearth Extension
Use a non-combustible ember floor protector, extending
beneath the appliance and to the front, and to the sides as
indicated in Floor Protection below.
F. Floor Protection
Minimum Floor Protection
Dimensions
Inches Millimeters
A
Front Width (Steel Panel Set)
32-1/4
819
Front Width (Cast Panel Set)
32-1/4
819
B
Depth (Steel Panel Set)
16-5/8
422
Depth (Cast Panel Set)
16-1/4
413
C
Floor Protection Depth
15-1/8
384
D
Floor Protection Width
32
813
Table 11.1
Figure 11.1
B
C
A
D
WARNING
THIS FIREPLACE MAY HAVE BEEN ALTERED
TO ACCOMMODATE AN INSERT. IT MUST BE
RETURNED TO ITS ORIGINAL CONDITION
BEFORE USE AS A SOLID FUEL BURNING
FIREPLACE.
250-2061
Figure 11.2
G. Installation into a Factory-Built Fireplace
The following modifications are permissible:
- Removal of damper or locked in open position
- Removal of smoke shelf or baffle
- Removal of ember catches
- Removal of fire grate
- Removal of view screen/curtain
- Removal of doors
- Removal of factory-built fireplace floor
• External trim pieces which do not affect the operation
of the fireplace may be removed providing they can be
stored on or within the fireplace for reassembly if the
insert is removed.
• The permanent metal warning label provided must be
attached to the back of the fireplace, with screws or
nails, stating that the fireplace may have been altered
to accommodate the insert, and must be returned to
original condition for use as a conventional fireplace
(Figure 11.2)
.
NOTE:
Refer to chimney liner manufacturer for
recommendations on supporting the liner. Installation into
fireplaces without a permit will void the listing.
• The firebrick (refractory), glass doors, screen rails,
screen mesh and log grates can be removed from a
factory-built firebox in order to gain minimum insert
opening requirements.
• Any smoke shelves, shields and baffles may be removed
from a factory-built firebox if attached with mechanical
fasteners.
• The metal floor of the factory-built firebox may be
removed to facilitate the installation of the insert only
when a 1 inch (25mm) airspace is provided between the
insert and the floor of outer wrap.
The following is only one example as there are many
different models of factory-built fireplaces.
• If the hearth extension is lower than the fireplace opening,
the portion of the insert extending onto the hearth must
be supported.
• Manufacturer designed adjustable support kit can be
ordered from your dealer.
NOTE:
This example is for reference only. Any
modifications must not compromise the structural integrity
or reduce the protection for combustible materials.
Mark area of
floor to cut
Starter hole
Figure 11.3
- Measure and mark the metal floor for cutting. With a
drill, make a starter hole in each corner.
