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FIREBOx FRAMING
Firebox framing can be built before or after the appliance
is set in place. Construct firebox framing following Figure
1. Refer to Figure 1 on Page 6 for firebox dimensions. The
framing headers may rest on the top of the firebox.
The firebox may be installed directly on a combustible floor
or raised on a platform of an appropriate height. When
the firebox is installed directly on carpeting, tile, or other
combustible material, other than wood flooring, the firebox
shall be installed on a metal or wood panel extending the
full width and depth of the enclosure.
Combustibles may not come any closer to the top of the
enclosure than the standoffs will allow.
Do not fill spaces around firebox with
insulation or other materials. This could
cause a fire.
1. Bend out the nailing flanges located on each side of the
firebox.
2. Slide the firebox into prepared framing or position firebox
in its final position and frame later.
3. Level the firebox by checking the top edge of the firebox.
Shim if necessary.
4. Anchor firebox to the side framing members using 8d
nails or other suitable fasteners. Figure 9
5. The canopy must be installed for safe operation of
the heater. Refer to Page 11 for canopy installation
details.
Nail Sides
Through
Nailing
Flanges
Figure 9 -
Side Nailing Flanges
FP2693
nailing flanges
26D4720
The fireplace must be installed giving full
consideration to the clearance and height
requirements identified in this manual.
When finishing a custom cabinet, mantel, or other built-in
enclosure, the opening size to accommodate the fireplace
with trim installed is as follows:
MCUF36 w/Trim
A
B
Figure 10 -
Custom Cabinet
FP2693
MCUF Series Vent-Free Firebox
MCUF42 w/Trim
42"
38Z\,"
A
FP2694
custom cabinet
47C\v"
38Z\,"
B
FP2694
9
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