Monessen Hearth GCUF Series User Manual

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71D0530 
7
E
MINIMUM HEARTH DIMENSIONS
GENERAL INSTALLATION INFORMATION 
AND
 LOCATION OF FIREBOX  
Figure 2 - Minimum Hearth Dimensions 
LOCATION OF FIREBOX 
Carefully select the best location for installation of your 
vent-free firebox. The following factors should be taken 
into consideration:
  •  Clearance to side wall, ceiling, woodwork and 
windows. See “Clearances/Height Requirements on 
page 8. Minimum clearances to combustibles must 
be maintained.
  •  Location must not be affected by drafts caused by 
kitchen exhaust fans, ceiling fans, return air registers 
for forced air furnaces / air conditioners, windows 
or doors.
  •  Installation must provide adequate ventilation and 
combustion air.
 • DO NOT INSTALL THIS FIREBOX IN A 
BEDROOM OR BATHROOM.
  •  Location should be out of high traffic or windy or 
drafty areas.
 • DO NOT INSTALL WHERE CURTAINS, FURNITURE, CLOTHING OR OTHER FLAMMABLE OBJECTS 
ARE LESS THAN 42"  FROM FRONT OF HEATER.
  •  Never obstruct the front opening of the vent-free firebox or restrict the flow of combustion and ventilation air.
  •  Minimize modifications to existing construction. Refer to Figure 3 below for location suggestions.
  •  Do not install in the vicinity where gasoline or other flammable liquids may be stored. The vent-free firebox must be 
kept clear and free from these combustible materials. 
Figure 3 - Location of Firebox 
   
GCUF32C GCUF36C GCUF42C
 A 
29⅞" 34"  40"
 
13¼" 15¾" 15¾"
 C 
23⅜" 27⅜" 33⅜"
 D 
21⅞" 21⅞" 21⅞"
 E
 18" 
17⅝" 17⅝-"