Monessen Hearth DFX32C User Manual
Page 11

33D4047
11
DFX & DBX Series Vent Free Fireplaces
FIREPLACE INSTALLATION
If unit is to be “built in”, fireplace framing can be built before 
or after the appliance is set in place. BE SURE THAT ALL 
PACkING MATERIAL HAS BEEN REMOVED FROM THE 
UNDERSIDE OF THE UNIT PRIOR TO SETTING THE 
FIREBOX IN PLACE. Construct fireplace framing following 
Figure 2 on Page 6 for fireplace dimensions. The framing 
headers may rest directly on top of the firebox.
The fireplace may be installed directly on a combustible 
floor or a raised platform of an appropriate height. Do 
not place fireplace on carpeting, vinyl, tile or other soft 
floor coverings. It may, however, be placed on flat wood, 
plywood, particle board or other hard surfaces. Be sure 
fireplace rests on a solid continuous floor or platform with 
appropriate framing for support and so that no cold air can 
enter from under the firebox.
Anchor fireplace to the side framing members using nail-
ing flanges.
K
J
FP2445
opening size
Ref.
DFX24C
DBX24C
DFX32C
J
6C\v"
6C\v"
31Z\v"
(680 mm)
(680 mm)
(800 mm)
K
5"
5"
3ZC\zn"
(635 mm)
(635 mm)
(833 mm)
FP445
Figure 7 - 
Custom Cabinet
When finishing a custom cabinet, mantel or other built-in 
enclosure, the opening size to accommodate the fireplace with 
trim installed is as follows:
W
ARNING
The fireplace must be installed giving full 
consideration to the clearance and height 
requirements identified in this manual.
1. Bend out the nailing flanges located on each side of the
firebox.
. Slide the firebox into prepared framing or position firebox
in its final position and frame later.
3. Level the firebox by checking the top edge of the firebox.
Shim if necessary.
4. Anchor firebox to the side framing members using 8d
nails or other suitable fasteners. Figure 8
5. The canopy must be installed for safe operation of
the heater. Refer to Page 17 for canopy installation 
details.
FP2509
nailing flanges
Nail Sides 
Through Nailing 
Flanges
FP509
Figure 8 - 
Nailing Flanges
