Monessen Hearth BWBC400 Fire Pit User Manual


 
GAS APPLIANCE INSTALLATION
Do not allow the trim materials to extend closer than 3/8 inch to the vertical edges of the firebox opening if you
plan to equip the fireplace with glass doors.
The face of your fireplace may be left exposed or trimmed. If trim is installed, be sure it is fastened securely to
the face of the fireplace. Any crack between the trim material and the face of the fireplace could pose a fire
hazard and impair the proper operation of the fireplace; seal such cracks. See Figure 31. Blocking the fireplace
with framing and attaching the base to the supporting floor will reduce the possibility of a crack redeveloping
after sealing. (CAUTION: ACCEPTABLE COMBUSTIBLE MANTEL LOCATION SHOWN BY PART C OF
FIGURE 31 IS FOR WOODBURNING FIREPLACE INSTALLATION ONLY. SEE FIGURES 29 AND 30 FOR
ACCEPTABLE COMBUSTIBLE MANTEL LOCATIONS WHEN AN UNVENTED GAS APPLIANCE IS
INSTALLED IN THE FIREPLACE.)
26
TRIM INSTALLATION
GAS LINE PLUMBING DETAIL
CAUTION: WHEN USING A GAS
APPLIANCE, THE FIREPLACE
DAMPER MUST BE SET IN FULLY
OPEN POSITION.
REPACK INSULATION AROUND
GAS LINE WHERE IT PASSES THRU GAS 
LINE ACCESS TUBE FOR 
PROPER SEAL.
GAS LINE ACCESS TUBE
26" MAX.
INNER FIREPLACE WRAP
OUTER FIREPLACE WRAP
SIDE BRICK
FIREPLACE FIREBOX
HEARTH BRICK
COMBUSTIBLE MATERIALS 
MAY BE LOCATED AT ZERO
CLEARANCE TO GAS LINE 
BEYOND 4" FROM FIREPLACE
SIDE.
MAINTAIN 1/2" MINIMUM 
AIR SPACE CLEARENCE
TO COMBUSTIBLES FOR
GAS LINE OUT TO 4" FROM
SIDE OF THE FIREPLACE.
SIDE
REFRACTORY
BRICK
BACK
REFRACTORY
BRICK
KNOCKOUT
FIGURE 28
FINISH WALL
FRAMING
1/4"
INSTALLATION OF NON-COMBUSTIBLE FACING MATERIALS TO THE FRONT FACE OF THE FIREPLACE
COMBUSTIBLE FRAMING
MEMBERS FACING MATERIAL
TO TOP OF SPACERS.
CAUTION:
DO NOT COVER 
OR RESTRICT SIDE VENT 
AREAS WITH SURROUND 
OR TRIM MATERIALS.
USE ONLY NON-COMBUSTIBLE
MATERIALS BELOW TOP OF SPACERS.
NON-COMBUSTIBLE
FACING MATERIAL
FIREPLACE FACE
STEEL LINTEL
(OPTIONAL)
WARNING:
THE SPACE BETWEEN THE
FACE OF THE FIREPLACE
AND THE NON-COMBUSTIBLE
FACING MATERIAL MUST BE
SEALED. FAILURE TO 
PROPERLY SEAL THIS CRACK
CAN CAUSE A POSSIBLE FIRE
HAZARD AND WILL VOID THE
WARRANTY.
SCREENED OPENING
OF FIREPLACE
4"
(REF.)
EXTEND LINE FROM OPPOSITE REAR OF
FIREBOX THRU A POINT 4" IN FRONT OF
FIREPLACE FACE, AND 1" OUTSIDE OF
SCREENED OPENING.
OUTLINE OF
FIREPLACE
FIREBRICK
COMBUSTIBLE SURROUND
MATERIALS MAY BE PLACED
WITHIN SHADED AREAS. 
NOTE: COMBUSTIBLE
MATERIALS MUST NOT 
OVERLAP BLACK PAINTED
SURFACE MORE THAN 1/8".)
COMBUSTIBLE
FRAMING
MEMBERS 
MAY BE
PLACED
ACROSS
TOP SPACERS.
12" MAX.
2 3/4" HOOD
(PART NO.
075629)
SIDE VIEW CUT-AWAY
FACING AND MANTEL CONSTRUCTION
075629 HOOD MUST
BE INSTALLED WHEN
MANTEL IS 12" FROM 
FIREPLACE OPENING.
WHEN 075629 HOOD IS
INSTALLED GLASS DOORS 
HAVE TO BE REMOVED.
12"
NOTE: NO COMBUSTIBLE
MATERIAL BELOW 12"
FROM OPENING
39 1/2"
44"
(MIN.)
48"
(MIN.)
1 1/2"
MAX.
COMBUSTIBLE
MANTEL AND/OR
TRIM MAY BE
PLACED WITHIN
THE SHADED AREA.
8"
TOP "V"
SPACERS
FLOOR
NON-COMBUSTIBLE
WALLBOARD
USE ONLY NON-COMBUSTIBLE MATERIALS BELOW
TOP OF SPACERS AND BEHIND FRONT FACE.
FINISH WALL
FRAMING
1/4"
INSTALLATION OF NON-COMBUSTIBLE FACING MATERIALS TO THE FRONT FACE OF THE FIREPLACE
COMBUSTIBLE FRAMING
MEMBERS FACING MATERIAL
TO TOP OF SPACERS.
CAUTION:
DO NOT COVER 
OR RESTRICT SIDE VENT 
AREAS WITH SURROUND 
OR TRIM MATERIALS.
USE ONLY NON-COMBUSTIBLE
MATERIALS BELOW TOP OF SPACERS.
NON-COMBUSTIBLE
FACING MATERIAL
FIREPLACE FACE
STEEL LINTEL
(OPTIONAL)
WARNING:
THE SPACE BETWEEN THE
FACE OF THE FIREPLACE
AND THE NON-COMBUSTIBLE
FACING MATERIAL MUST BE
SEALED. FAILURE TO 
PROPERLY SEAL THIS CRACK
CAN CAUSE A POSSIBLE FIRE
HAZARD AND WILL VOID THE
WARRANTY.
SCREENED OPENING
OF FIREPLACE
4"
(REF.)
EXTEND LINE FROM OPPOSITE REAR OF
FIREBOX THRU A POINT 4" IN FRONT OF
FIREPLACE FACE, AND 1" OUTSIDE OF
SCREENED OPENING.
OUTLINE OF
FIREPLACE
FIREBRICK
COMBUSTIBLE SURROUND
MATERIALS MAY BE PLACED
WITHIN SHADED AREAS. 
NOTE: COMBUSTIBLE
MATERIALS MUST NOT 
OVERLAP BLACK PAINTED
SURFACE MORE THAN 1/8".)
COMBUSTIBLE
FRAMING
MEMBERS 
MAY BE
PLACED
ACROSS
TOP SPACERS.
12" MAX.
2 3/4" HOOD
(PART NO.
075629)
SIDE VIEW CUT-AWAY
FACING AND MANTEL CONSTRUCTION
075629 HOOD MUST
BE INSTALLED WHEN
MANTEL IS 12" FROM 
FIREPLACE OPENING.
WHEN 075629 HOOD IS
INSTALLED GLASS DOORS 
HAVE TO BE REMOVED.
12"
NOTE: NO COMBUSTIBLE
MATERIAL BELOW 12"
FROM OPENING
39 1/2"
44"
44"
(MIN.)
(MIN.)
48"
48"
(MIN.)
(MIN.)
1 1/2"
1 1/2"
MAX.
MAX.
COMBUSTIBLE
COMBUSTIBLE
MANTEL AND/OR
MANTEL AND/OR
TRIM MAY BE
TRIM MAY BE
PLACED WITHIN
PLACED WITHIN
THE SHADED AREA.
THE SHADED AREA.
8"
TOP "V"
TOP "V"
SPACERS
SPACERS
FLOOR
FLOOR
NON-COMBUSTIBLE
NON-COMBUSTIBLE
WALLBOARD
WALLBOARD
USE ONLY NON-COMBUSTIBLE MATERIALS BELOW
USE ONLY NON-COMBUSTIBLE MATERIALS BELOW
TOP OF SPACERS AND BEHIND FRONT FACE.
TOP OF SPACERS AND BEHIND FRONT FACE.
FIGURE 30
FIGURE 29
FIGURES 29 AND 30 SHOW ACCEPTABLE COMBUSTIBE MANTEL LOCATIONS IF AN UNVENTED GAS APPLIANCE IS INSTALLED IN THE
FIREPLACE
. SEE PART C OF FIGURE 31 FOR ACCEPTABLE COMBUSTIBLE MANTEL LOCATION IF FIREPLACE IS INSTALLED TO BURN
WOOD
.
53D9031. Rev 1 03/03