Monessen Hearth LCUF32-F User Manual

10 

Firebox framing can be built before or after the appliance is set in place. Construct fi rebox framing following Figures 9 
through 12 and the chart below for your specifi c installation requirements. See Figure 1 on Page 6 for fi rebox dimensions.  
The framing headers may rest on the top of the fi rebox standoffs.

The fi rebox may be installed directly on a combustible fl oor or raised on a platform of an appropriate height. When the 
fi rebox is installed directly on carpeting, tile, or other combustible material, other than wood fl ooring, the fi rebox shall be 
installed on a metal or wood panel extending the full width and depth of the enclosure.

The classifi cation "noncombustible material" includes, but is not limited to: stone, brick, and mortar. Noncombustibles are 
safe to overlay the black-painted metal face, including radiant plates, and do not pose a fi re hazard. Any noncombustible 
fi nish material must not extend past or interfere with the fi replace opening.

The classifi cation "combustible material" incudes, but is not limited to: plywood, drywall, and particle board. Combustible 
materials may contact the sides, bottom, or back of the fi rebox.  Do not overlay the black painted face with combustible 
matierals.

 A 

37" 

41¼"

 B 

34½" 

37¾"

 C 

29" 

32"

 D 

14⅞

"

 16⅜"

 E 

61¾" 

68⅞"

 F 

30

⅞

"

 34½"

 G 

16

"

 18"

 H 

43¾" 

48¾"

½" or ⅝"