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Vented Cavity and KZK Facing and Finishing Requirements
SECTION 4
FACING AND FINISHING
#CLW-50-MV
R.1 October 2021
38
HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
4.5 Vented Cavity and KZK
Facing and Finishing Requirements
WARNING: Maintain all minimum clearances to combustibles from the
appliance and vent system.
WARNING! RISK OF FIRE : The following facing and finishing options are
for use ONLY when using an optional vented cavity or Komfort Zone Kit
with the convection baffle and cover plates removed. DO NOT follow
these options unless you are using the vented cavity option.
NOTE: All vented cavity options and Komfort Zone Kit(s) allow the
sidewall to be flush with the fireplace finishing edge (safety screen
only), or flush with an optional surround installed.
4.5.1 Mantel and Hearth Requirements
WARNING: All minimum clearances to combustible material MUST be
maintained.
•
Combustible Hearth and Mantel Projections:
See
on page 39 for clearances.
If installing an optional surround,
refer to section
(page 36) if installing an optional surround.
4.5.2 Adjacent Sidewall Requirements
•
The adjacent sidewall minimum clearance is 0" (0mm) fro
m the
finishing edge of the fireplace if installing without a surround.
If installing an optional surround,
refer to Measurement 'A',
in section
on page 36, for the space required from the
optional surround sides to finishing material.
4.5.3 Facing Requirements
•
Non-combustible material is required at the top and sides
of this fireplace. This fireplace is designed to accommodate
non-combustible facing material up to 3/4" (19mm) thick. See
•
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.
•
It is acceptable to pre-drill holes and to use self-tapping screws
prior to attaching the non-combustible material to the top
and sides of the fireplace face, screws can only penetrate the
fireplace outer shell up to 1/2" (13mm) in the allowed areas. See
4.5.4 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. Co., Inc. 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.
Joint compound 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.
4.5.4.1 Combustible Wall Finish
•
on page 40 shows installation of combustible
wall finish up to 1" (25mm) thick for Komfort Zone Kit(s) and
Vented Cavity installations. For KZK-1510A and KZK-054
installations, reference the manuals included with the kit.
•
Finishing materials cannot block the required vented cavity
discharge opening requirements.
•
This combustible material goes on any required non-
combustible materials as shown in
•
This 1" (25mm) combustible material is able to go down to the
fireplace finishing edge and up to the air discharge opening.
IMPORTANT: If you plan to install a hearth and an optional
surround, reference section
on page 36 for allowable space for
finishing materials to ensure a proper fitting of the surround. Use
on page 36 for the required
space necessary from the bottom of the fireplace finishing edge
to the hearth.