D. Clearances to Combustibles
Carefully select the best location for installation of your
vent-free firebox. The following factors should be taken
into consideration:
•
Clearance to side walls and ceiling. 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 com
-
bustion air.
Figure 3.4 Clearances to Combustibles
•
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 36" FROM FRONT OF FIREBOX.
•
Never obstruct the front opening of the vent-free firebox
or restrict the flow of combustion and ventilation air.
0" in to back
0" in to side
0 in
Drywall
Combustible flooring may be installed next to the front of the appliance.
(No carpet or vinyl within 14 inches)
6 in. (152 mm) min.
9 in (229 mm) min.
(from firebox opening)
Drywall
Perpendicular
Wall
36 in
(914 mm)
Combustible Object
42 in to ceiling
(1067 mm)
0 in to floor
0 in to standoffs
9
Monessen • ACUF32/36/42 Installation Manual • 4136-901 • Rev A • 01/21
