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111026-01L 5
4. Check the level of the replace and shim
with sheet metal if necessary.
5. Before securing fireplace to prepared
framing, the ember protector (provided)
must be placed between the hearth ex-
tension (not supplied) and under bottom
front edge of replace to protect against
glowing embers falling through. If replace
is to be installed on a raised platform, a Z-
type ember protector (not supplied) must
be fabricated to t your required platform
height. The ember protector should ex-
tend under replace a minimum of 1
1
/
2
".
The ember protector should be made of
galvanized sheet metal (28 gauge mini-
mum) to prevent corrosion.
6. Using screws or nails, secure replace to
framing through anges located on sides
of replace.
DRAIN PAN (DP36)
For outdoor installations, the replace enclo-
sure must allow for adequate drainage and
fresh air ventilation. It is recommended that
a sealed, corrosion resistant catch pan with
provision for drainage be installed under the
replace within the replace enclosure (see
Accessories on page 19).
HEARTH EXTENSION
A hearth extension projecting a minimum of
16" in front of and a minimum of 8" beyond
each side of the replace opening is required
to protect combustible floor construction
in front of the replace. Fabricate a hearth
extension using a material which meets the
following specications: a layer of noncom-
bustible, inorganic material having a thermal
conductivity of K=0.84 BTU IN/FT, HR. F (or
less) at 1" thick. For example, if the material
selected has a K factor of 0.25, such as glass
ber, the following formula would apply:
0.25 x 1.0" = 0.30" thickness required
0.84
FIREPLACE INSTALLATION
Continued
Figure 3 - Hearth Extension
Seal Gap
Fireplace Front
Ember Protector
Fireplace Front
Raised Hearth
Fireplace Front
Elevated
Ember Protector
Ember Protector
Seal Gap
Hearth
Extension
Thermal conductivity "K" of materials can be
obtained from the manufacturer or supplier of
the noncombustible material. If the hearth ex-
tension is to be covered, use noncombustible
material such as tile, slate, brick, concrete,
metal, glass, marble, stone, etc. Provide a
means to prevent the hearth extension from
shifting and seal gap between the replace
frame and hearth extension with a noncom-
bustible material (see Figure 3).
WARNING: Hearth extension
is to be installed only as shown
in Figure 3.
MANTELS
A mantel may be installed if desired (see
Figure 4. page 6). Woodwork such as wood
trims, mantels or any other combustible ma-
terial projecting from the front face must not
be placed within 12" of the replace opening.
Combustible materials above 12" and project-
ing more than 1
1
/
2
" from the replace must not
be placed less than 15" from the top opening
of the replace (NFPA STD 211, Sec. 7-3.3.3).
Mantels or any other combustible material
also may come up to the side edge of the
black metal face of the replace just as long
as the projection from the front face fall within
the limit shown in Figure 4.
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