
17
Heat & Glo • Cosmo-I30-C, Cosmo-I35-C • 2239-901 Rev. S • 3/15
5
5
Fireplace Size Requirements
A. Minimum Fireplace Opening
Minimum
fi
replace opening requirements for a standard 3/4
inch deep surround are shown in Figure 5.2. For smaller
openings, an optional 1-1/2 inch deep surround is available
and dimensions are shown in Figure 5.3.
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 traf
fi
c and away from furniture and draperies.
• The
fi
rebrick (refractory), glass doors, screen rails, screen
mesh and log grates can be removed from a factory
built
fi
rebox in order to gain minimum gas insert opening
requirements.
• Any smoke shelves, shields and baf
fl
es may be removed
from the factory built
fi
rebox if attached with mechanical
fasteners.
• The metal
fl
oor of the solid fuel
fi
rebox may be removed
to facilitate the installation of the insert.
• Cutting of any sheet metal parts of the
fi
replace in which
the gas
fi
replace insert is to be installed is prohibited,
except the
fl
oor as tested for and as noted above and in
Figure 5.1.
• A minimum 1/2 inch gap from the bottom of the
appliance to the metal
fl
oor of the solid fuel
fi
rebox is
RECOMMENDED
for optimal fan performance. See
side view in Figure 5.1
Figure 5.1-A
SIDE VIEW
6 IN.
5 IN.
3 IN.
9 IN.
METAL INSERT
FACTORY BUILT FIREBOX
6 IN.
5 IN.
3 IN.
9 IN.
METAL FLOOR OF EXISTING
SOLID FUEL FIREBOX
TOP VIEW
REMOVE THIS
SECTION OF
METAL FLOOR
REMOVE THIS
SECTION OF
METAL FLOOR
1/2 IN. MINIMUM LEVELING HEIGHT
(RECOMMENDED)
1/4 IN. REQUIRED
METAL FLOOR OF EXISTING SOLID FUEL FIREBOX
• 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
fl
oor of the outer wrap. Use
the leveling legs to raise the insert a minimum of 1/4 inch.
The original
fi
replace may never be returned to solid
fuel in this condition. The sidewalls and top structure
of the
fi
rebox may not be altered with the exception of
removable baf
fl
es and dampers.
• If a minimum 1/2 inch gap can not be achieved, a section
of the factory-built metal
fl
oor can be removed. See
Figure 5.1-B.
Figure 5.1-B