Finishing Fireplace; Operation And Maintenance Guidelines - Superior MHW36R Installation And Operation Instructions Manual

Combustible materials, such as wallboard,
gypsum board, sheet rock, drywall, plywood,
etc. may make direct contact with sides and
top around the fireplace face. It is important that
combustible materials do not overlap the face
itself. Brick, glass, tile or other noncombustible
materials may overlap the front face provided
they do not obstruct essential openings like lou-
vered slots or any other opening. When overlap-
ping with a noncombustible facing material, use
only noncombustible mortar or adhesive.
MANTELS
A mantel may be installed if desired (see
Figure 24). Woodwork such as wood trims,
mantels or any other combustible material
projecting from the front face must not be
placed within 9" of the fireplace opening. Com-
bustible materials above 9" and projecting
more than 1-1/2" from the fireplace must not
be placed less than 12" from the top opening
of the fireplace (NFPA 211, Section - Clear-
ance from Combustible Material).

operaTion and MainTenanCe gUidelineS

GLASS DOORS
Glass doors are standard with fireplace.
When fireplace is in operation, doors must
be FULLY OPENED or FULLY CLOSED
position only or a fire hazard may be created
(see Figure 25).
A fireplace equipped glass doors operates
much differently than a fireplace with an open
front. A fireplace with glass doors has a limited
amount of air for combustion. Excessive heat
within fireplace can result if too large a fire is
built or if combustion air gate is not completely
open. The following tips should be followed
to assure that both fireplace and glass door
retain their beauty and function properly.
Both flue damper and glass doors must be
fully opened before starting the fire. This will
provide sufficient combustion air and maintain
safe temperatures in firebox.
IMPORTANT: Glass must be allowed to
warm slowly and evenly. Tempered glass will
withstand a gradual temperature rise to 550°
Fahrenheit, which is more than a normal fire
will generate.
Such materials as pitch/wax laden logs, very
dry mill end lumber, and large amounts of pa-
per or cardboard boxes can create an exces-
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FiniShing FireplaCe

SuperiorFireplaces.US.com
Note: HUD requirements may supersede
these minimum dimensions.
12 / " Ref.
1
4
6"
Ref.
33°
3" Nom.
12"
1 / " Max.
1
2
Min.
9" Min.
Fireplace
Opening
Figure 24 - Mantel Clearances to
Combustible Material
sively hot fire and should not be burned in this
fireplace. Always keep fire back from doors
and never allow flames to contact glass.
WARNING: Fireplaces
equipped with glass doors
should be operated only with
doors fully opened or fully
closed. Doors, if left partly open,
may draw gas and flame out of
the fireplace opening creating
risks of both fire and smoke.
Doors Fully Closed
Fireplace Front
Fully Opened
Fireplace Front
Figure 25 - Bi-Fold Glass Doors
Combustible
Material
Safe
Zone for
Projection of
Combustible
Materials
Upper
Section of
Fireplace
Doors
15