FRAMING
13
3.4 Wall Enclosure Rough Opening
WARNING: Provide adequate clearances around air openings
into the combustion chamber. Provide adequate clearance in
front of the fireplace for barrier removal, component access,
gas line installation, service access, etc.
• Framing dimensions should allow for wall covering thickness
and fireplace facing materials. If using a hearth, adjust the
rough opening size as necessary to maintain minimum
clearance requirements.
• If masonry is to be used (optional), prepare the necessary
foundation for the masonry load. When masonry construction
is to be used, a lintel must be used over the top of the
appliance to support the additional weight.
• If installing the optional heat duct kit, refer to Section 4.0
#970 Heat Duct Kit on page 15.
Figure 3.3, Finished Opening Dimensions
SINGLE VERTICAL HEADER
BOARD IS REQUIRED TO
MAINTAIN CLEARANCES TO
COMBUSTIBLES
44½”
(1130mm)
413⁄8”
(1051mm)
17½”
(445mm)
