Monessen Hearth Series User Manual

10 

Firebox framing can be built before or after the appliance is set in place. Construct firebox framing following Figures 9 
through 12 and the chart below for your specific installation requirements. See 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.
The classification "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 fire hazard. Any noncombustible 
finish material must not extend past or interfere with the fireplace opening.
The classification "combustible material" incudes, but is not limited to: plywood, drywall, and particle board. Combustible 
materials may contact the sides, bottom, or back of the firebox.  Do not overlay the black painted face with combustible 
matierals.

 

A 

37¼" 41¼" 47¼"

 

B 

35" 35" 35"

 

C 

29" 32" 38"

 D 

14⅞

"

 16⅜" 19.⅜"

 E 

61¾" 

68⅞" 74⅞"

 F 

30⅞" 34½" 37½"

 

G 

15½" 17½" 17½"

 H 

 43¾" 

48¾" 

53"