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B. Minimum Fireplace Opening
Minimum fireplace opening requirements for a standard 3/4
inch deep surround are shown in Figure 3.8. For smaller
openings, a custom surround is available.
WARNING! Risk of Fire or Burns! Provide adequate
clearance around air openings and for service access.
Due to high temperatures, the appliance should be locat-
ed out of traffic and away from furniture and draperies.
For Installation into a Zero Clearance Wood burning fire-
place:
• The brick (refractory), glass doors, screen rails, screen
mesh and log grates can be removed from a factory
built firebox in order to gain minimum gas insert opening
requirements.
• Any smoke shelves, shields and baffles may be removed
from the factory built firebox if attached with mechanical
fasteners.
SIDE VIEW
MINIMUM 1/4 IN. REQUIRED
COMBUSTIBLE FLOOR UNDERNEATH APPLIANCE
Figure 3.6 Solid Fuel Floor Clearance
• The appliance may not be placed directly on the base of
the outer wrap, a 1/4 inch airspace MUST be provided
between the insert and the floor of the outer wrap. Use
the leveling legs to raise the insert a minimum of 1/4 inch.
The original fireplace may never be returned to solid
fuel in this condition. The sidewalls and top structure
of the firebox may not be altered with the exception of
removable baffles and dampers.
Heat & Glo • SUPREME-I25/30/35-IFT, SUPREME-I25/30/35-BIR, SUPRM-I30LP-IFT Installation Manual • 2532-980 Rev. AD • 3/24
• The metal floor of the solid fuel firebox may be removed
to facilitate the installation of the insert.
• A metal lip protuding above the hearth pad of the solid
fuel firebox may be removed. See Figure 3.7.
ACCEPTABLE
TO REMOVE
HEARTH PAD
Figure 3.7 Solid Fuel Firebox
• Cutting of any sheet metal parts of the fireplace in which
the gas fireplace insert is to be installed is prohibited,
except the floor and front lip as tested for and as noted
above. See Section 4.C for gas line exception.
• A minimum 1/4 inch gap from the bottom of the appliance
to the metal floor of the solid fuel firebox is REQUIRED.
See side view in Figure 3.6.
• Manufactured gas inserts can be installed as a zero
clearance wall extension appliance. See Section 3C for
clearance detail.
1/2 in.
Figure 3.8 Minimum Required 1/2 in. Gap
NOTICE: 1/2 inch gap must be maintained or components
will overheat.
13
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