28 FACING AND FINISHING
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
#CLW-50 R.4 November 2019
4.0 FACING AND FINISHING
4.1 Standard Installation Facing
and Finishing Requirements
WARNING: Maintain all minimum clearances to combustibles from the
appliance and vent system.
4.1.1 Mantel and Hearth Requirements
WARNING: All minimum clearances to combustible material MUST be
maintained.
IMPORTANT: If you plan to install a hearth and an optional
surround, reference 4.3 Masonry Finishing Guidelines for
Optional Surrounds on page 32 for allowable space
for finishing materials to ensure a proper fitting of the
surround. Use measurement in 'B' Figure 4.9 on page 32
for the required space necessary from the bottom of the
fireplace finishing edge to the hearth.
•
Combustible Mantel Projections (no surround) -
As referenced
in Figure 4.1, the 3/4" trim can start at 18" (457mm) above the
finishing edge with a 6" (152mm) mantel starting at 21-1/2"
(545mm) above the finishing edge. Mantel projections can
increase 1" (25mm) of depth for every 1" (25mm) of height
starting at the 6" (152mm) mantel.
•
Combustible Hearth
- As referenced in Figure 4.1, the bottom
of the finishing edge can be flush with the top of the hearth if
you are not using any optional surrounds. Refer to 4.3 Masonry
Finishing Guidelines for Optional Surrounds on page 32 if
installing with optional surround.
•
Non-combustible Mantel Projections -
Minimum Vertical
and Maximum Horizontal: A minimum vertical clearance of 6"
(152mm) above the finishing edge to a maximum 6" (152mm)
depth of a non-combustible mantel. Follow projection 1"
(25mm) up for every 1" (25mm) deeper.
4.1.2 Adjacent Sidewall Requirements
•
The adjacent combustible sidewall
must be 3” (76mm) from the
finishing edge of the fireplace.
•
If installing an optional surround
, refer to Measurement 'A' in
Figure 4.9 on page 32 for the space required from the optional
surround sides to non-combustible finishing material.
4.1.3 Facing Requirements
Non-combustible material is required at the top of the fireplace.
This fireplace is designed to accommodate non-combustible facing
material up to 3/4" (19mm) thick.
See Figure 4.3 and Figure 4.4 on
page 30 for facing and finishing material dimensions.
•
Install facing material up to the finishing edge that surrounds
the glass frame assembly. Do not apply any material beyond this
point. The glass frame assembly must be removable.
•
Do not secure material to the lower cover panel using screws.
This may damage control system components. To secure material
to this area, use a silicone sealant that has a 300°F (149°C)
continuous exposure rating.
•
It is acceptable to pre-drill holes and to use self-tapping screws
prior to attach the non-combustible material to the top and sides
of the fireplace face. Do not use excessively long screws. Screws
can only penetrate the fireplace outer shell up to 1/2" (13mm) in
the allowed areas. See Figure 4.3 and Figure 4.4 on page 30.
4.1.4 Finishing Recommendations
NOTE: The surface area above the appliance may be affected by high
temperatures emitted from this appliance. To help avoid or reduce the
possibility of the sheetrock to crack, Hussong Mfg. recommends the
following methods:
•
Ensure the non-combustible material and sheetrock is dry and
dust free.
•
For taping and mudding seams, we recommend heat resilient
tape, mesh and joint compounds, such as Durabond. Mud must
be cured as per manufacturer’s recommendations.
•
For a painted surface, use a high quality acrylic latex primer
and finish coat. Avoid flat or light-colored paints to prevent
discoloring.