Hearth and Home Technologies CL36D - Manual (Page 21)

02-02 21 12538 Rev D
CL36D AND CR36D INSTALLATION INSTRUCTIONS
Figure 17 - Position the Hearth Extension
18.Position the Hearth Extension
Position and secure the hearth extension over the
protective metal strips that have been placed partially
under the fireplace front. These strips should be
protruding approximately 2” from under the fireplace
front and 2” on both sides of the fireplace opening.
Seal the crack between the hearth extension and
fireplace with a bead of noncombustible sealant.
See Figure 17. Apply a noncombustible finishing
material of your choice to the hearth extension.
19.Finishing Material
Do not install combustible materials over the black
face of the fireplace! This poses a safety hazard and
may start a fire. You may only use noncombustible
material over the black face of the fireplace.
a. Combustible Material
Material which is made of or surfaced with wood,
compressed paper, plant fibers, plastics, or any
material capable of igniting and burning, whether
flame proofed or not, plastered or unplastered.
b. Noncombustible Material
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.
20.Mantel
A combustible mantel may be positioned no lower
than 41” above the platform or floor the fireplace is
set on. The combustible mantel may have a maximum
depth of 10”. See Figure 18. Combustible trim pieces
that project no more than 1½” from the face of the
fireplace can be placed no closer than 6” from the top
and side of the fireplace opening. Combustible trim
must not cover the black metal surfaces of the
fireplace. This mantel clearance is in accordance with
Section 7-3.3.3 of ANSI/NFPA211.
21.Glass Doors
This fireplace has been tested and listed for use with
doors as specified in Section C, “Fireplace System
Components”. Please refer to the manual packed
with each set of doors for installation instructions.
c. Noncombustible Sealant Material
Sealants which will not ignite and burn; General
Electric RTV103 Black (or equivalent), Rutland,
Inc. Fireplace Mortar #63 (or equivalent).
After completing the framing and applying the
facing material (dry wall) over the framing, a ½”
wide (maximum) bead of noncombustible
sealant must be used to close off any gaps at
the top and sides between the fireplace and
facing to prevent cold air leaks.
Only noncombustible materials may be used to
cover the black metal fireplace front.
Figure 18 - Mantel Position