D. Frame the Fireplace
NOTICE:
Hearth extension design must be determined
before installation of fireplace.
If the fireplace is placed on the floor the maximum height
of a finished raised hearth is 5-3/4”, if you want a higher
raised hearth the fireplace must be placed on a platform.
NOTICE: Wiring for fans must be done before framed
enclosure is completed. If using a Heat Zone Kit, it
also must be installed before enclosure is complete.
The NorthStar will fit a framed opening height of 43-7/8 in.
(1114 mm) tall and 42-1/4 in. (1073 mm) wide.
WARNING! Risk of Fire!
You must comply with all
minimum air space clearances to combustibles.
DO NOT
pack required air spaces with insulation or other materi-
als.
WARNING! Risk of Fire!
Comply with all minimum clear-
ances specified.
• A minimum 1 in. (25 mm) air clearance must be
maintained at the back and 1 in. (25 mm) to the sides
of the fireplace assembly.
• Chimney sections at any level require a 2 in. (51 mm)
minimum air space clearance between the framing and
chimney section.
Figure 3.3 shows a typical framing (using 2 x 4 lumber)
of the fireplace, assuming combustible materials are
used. All required clearances to combustibles around the
fireplace must be adhered to. See Figure 3.2. Any framing
across the top of the fireplace must be above the level of
the top standoffs. (No recess above standoffs.)
The finished cavity depth must be no less than 24 in.
(610 mm) from the finished backwall to the outside of front
wall framing. Framing must extend straight up all the way
to the ceiling.
CAUTION!
Risk of Cuts/Abrasions. Wear protective gloves
and safety glasses during installation. Sheet metal edges
are sharp.
WARNING! Risk of Fire!
Prevent contact with sagging,
loose insulation.
•
DO NOT
install against vapor barriers or exposed
insulation.
• Secure insulation and vapor barriers.
• Provide minimum air space clearances at the sides and
back of the fireplace assembly as outlined in Section 3.
E. Secure and Level the Fireplace
This fireplace may be placed on either a combustible or
noncombustible continuous flat surface. Follow the in-
structions for framing in Section 3. Slide the fireplace into
position. Be sure to provide the minimum 1 in. air clear-
ance at the sides and 1 in. at the back of the fireplace.
The fireplace should be positioned so the face of the non-
combustible material on the fireplace will be flush with the
face of the drywall on the walls. See Figure 3.6.
Level the fireplace and shim as necessary. Secure the
fireplace (using the pallet mounting brackets located on
either side of the fireplace) to the subfloor.
These surfaces
must be even!
Drywall
Non-combustible
facing material
Figure 3.6 Drywall - Non-combustible Facing Material
14
Heat & Glo • NORTHSTAR • 480-2360 Installation Manual • Rev H • 8/20/14
