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Heatilator • CRAVE4836/ST-B, CRAVE6048/ST-B, CRAVE7260/ST-B, CRAVE8472/ST-B Installation Manual • 2301-973 Rev. H • 5/17
10
Finishing
A. Facing and Finishing Instructions
WARNING! Risk of Fire!
Comply with all minimum clear-
ances to combustibles as specified. Framing closer than the
minimums listed must be constructed entirely of noncom-
bustible materials (i.e., steel studs, concrete board, etc.).
Splatter Guard
The splatter guard is a piece of corrugated mate-
rial used to protect the appliance during the installa-
tion process before finishing work on the whole hearth
is complete. A splatter guard is factory-installed on
CRAVE models. Splatter guards must be removed be
-
fore appliance is fired.
WARNING! Risk of Fire!
Remove the splatter guard be-
fore lighting the appliance. Shut off gas to the appliance
when the splatter guard is in place to prevent accidental
operation.
Finishing Instructions
It is important to follow the framing and finishing instruc
-
tions to ensure proper placement of fireplace into the sur
-
rounding framing/finishing materials.
Wall sheathing materials 1/2 in. thick are specified in
this installation manual to properly align with the factory-
included non-combustible material.
WARNING! Risk of Fire!
Factory-included non-combus-
tible board MUST be installed. DO NOT remove or cover
it with combustible material, such as:
• Drywall (gypsum board)
• Plywood
• Materials that do not meet the ASTM E 136 Non-com-
bustibility standard (below).
Removal of installed, non-combustible board and/or use
of materials not meeting the ASTM E 136 standard could
cause fire.
Non-Combustible Materials Specification
Material which will not ignite and burn. Such materials are
those consisting entirely of steel, iron, brick, tile, concrete,
slate, glass or plasters, or any combination thereof.
Materials that are reported as passing
ASTM E 136,
Standard Test Method for Behavior of Materials in a
Vertical Tube Furnace at 750 ºC.
WARNING! Risk of Fire!
Maintain specified air space
clearances to combustibles. Inadequate air space could
cause overheating and fire.
NOTICE:
The maximum finishing material not only includes
the decorative finish materials (marble, tile, slate, etc) but
also the thin set, lath, and adhesive used to attach the
decorative finish material.
Finishing Materials
This section discusses installation details associated
with the Inside and Overlap Fit methods and specifies
additional non-combustible materials required.
When finishing the wall around the fireplace, it is critical
that wall sheathing be fastened properly. Wall sheathing
fasteners, such as screws or nails, are not permitted in
some locations. See Figure 10.1.
It is acceptable to pre-drill holes and use self-tapped
screws in the factory-included non-combustible board
which may be used to lathe (a backer for tile, marble,
etc.). Screws being installed through the installed non-
combustible board should be self-tapping type with a
maximum length of 2 inches. See Figure 10.1.
When installing finish material on the lower cover panel,
DO NOT drill or install screws longer than 3/4 of an inch.
Screws longer than 3/4 of an inch could penetrate the
lower cover panel causing damage to components or
penetrate the gas line. See Figure 10.1.