Installation and Operation

9
26D4720
MCUF Series Vent-Free Firebox

Firebox framing can be built before or after the appliance
is set in place. Construct rebox framing following Figure
1. Refer to Figure 1 on Page 6 for rebox dimensions. The
framing headers may rest on the top of the rebox.
The rebox may be installed directly on a combustible oor
or raised on a platform of an appropriate height. When
the rebox is installed directly on carpeting, tile, or other
combustible material, other than wood ooring, the rebox
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.

      
     

1. Bend out the nailing anges located on each side of the
rebox.
2. Slide the rebox into prepared framing or position rebox
in its nal position and frame later.
3. Level the rebox by checking the top edge of the rebox.
Shim if necessary.
4. Anchor rebox 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.
FP2693
nailing flanges
Nail Sides
Through
Nailing
Flanges
FP2693
Figure 9 -
Side Nailing Flanges

      
    

When nishing a custom cabinet, mantel, or other built-in
enclosure, the opening size to accommodate the replace
with trim installed is as follows:
 
A 42" 47C\v"
B 38Z\," 38Z\,"
A
B
FP2694
custom cabinet
FP2694
Figure 10 -
Custom Cabinet