8
3.3
Wall Enclosure Rough Opening
Determine whether the wall surface will be flush with the fireplace face, in which the wall surface and fireplace will be
covered with non-combustible material such as tile; or, if the framing will be flush with the fireplace face, which results in a
flat wall appearance.
Framing studs must maintain 1 in. (25 mm) clearances to venting. Please refer to Figure 3.2, Framed Opening, for
guidance.
Framing dimensions should allow for wall covering thickness and fireplace facing materials. If using a hearth, adjust rough
opening size as necessary to maintain clearance requirements.
This fireplace may be elevated off the floor as shown in Figure 3.2, provided it is properly supported by framing materials,
and ceiling clearances are maintained.
If installing optional #970 Heat Duct Kit, refer to 12.0 #970 Heat Duct Kit, on page 26.
3.4
Minimum Finished Opening Dimensions
Table 3.2, Appliance Enclosure Clearances
Top of appliance stand-offs to framing
0 in.
0 mm
From appliance left side & right side stand-offs
0 in.
0 mm
From appliance back stand-offs
0 in.
0 mm
From bottom stand-offs
0 in.
0 mm
Top of finishing edge to ceiling
36 in.
914 mm
Side of finishing edge to adjacent sidewall
6 in.
152 mm
Appliance front to combustibles
36 in.
914 mm
Mantel projection 1 in. (25 mm) deep from fireplace finishing edge
14-1/4 in.
362 mm
3.2
Clearances to Combustible Material
WARNING
PROVIDE ADEQUATE CLEARANCES AROUND AIR OPENINGS INTO THE COMBUSTION CHAMBER.
DO NOT OBSTRUCT UPPER AND LOWER GRILL OPENINGS. ROOM AIR ENTERS THROUGH LOWER PASSAGE, IS THEN HEATED, AND EXITS
THROUGH UPPER PASSAGE. BLOCKING THESE PASSAGES MAY RESULT IN OVERHEATING, CREATING A POTENTIALLY HAZARDOUS SITUATION.
*
**
Figure 3.2, Framed Opening
Table 3.3, Minimum Finished Opening Dimensions
(Opening Bottom to Header)
Height
36-5/8 in. (930 mm)
(Opening Bottom to Ceiling)
Height
62-1/4 in. (1581 mm)
Width
48-3/4 in. (1238 mm)
Depth**
19 in. (483 mm)
**
19 in. (483 mm) represents the minimum
distance from the front of the fireplace to back
wall of framing. This is the minimum wall depth
required for the wall surface material to cover the
fireplace front.
If wall surface is desired to be flush with the
fireplace face, subtract 1/2 in. (13 mm) (standard
non-combustible
board
depth)
from
this
dimension. If using another material, adjust
accordingly.
*
Refer to Figures 3.3—3.5 on page 9 for
horizontal vent termination framing.
