Minimum Clearances To Combustible; Installing The Fireplace; Hearth Extension - Desa 36RS Installation Instructions Manual

36” open corner non-circulating (smooth face) wood burning fireplace
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MINIMUM CLEARANCES TO COMBUSTIBLES:
Back and sides of fireplace .......................... ¾" min.
Top spacers ............................................ 0" min.
Perpendicular side wall to opening of unit ....... 18" min.
Bottom of fireplace to floor
(see step 2 under installing a fireplace) ............. 0" min.
Mantel clearances .............................. see page 10
Chimney outer pipe surfaces ......................
Chase inside dimension ........................ 16-1/2" min.
WARNING: Do not pack air spaces with insulation or
any other material. Do not obstruct fireplace openings (ie.
louvers, etc.) with any type of facing material.
Combustible material must not be in contact with the back
front face of the fireplace.

INSTALLING THE FIREPLACE:

STEP 1: Frame the opening for the fireplace using the
dimensions shown in figures 1 & 2.
STEP 2: If the fireplace is to be installed directly on carpeting,
tile (other than ceramic), or any combustible material other
than wood flooring; the fireplace must be installed upon a
metal or wood panel extending the full width and depth of the
fireplace.
STEP 3: Set the fireplace directly in front of this opening and
slide the unit back until the nailing flanges touch the side
framing.
STEP 4: Check the level of the fireplace and shim with sheet
metal if necessary.
STEP 5: Before securing fireplace to prepared framing, the
ember protector (provided), must be placed between hearth
extensions (not supplied), and under the bottom front edge of
the fireplace to protect against glowing embers falling
through. If the fireplace is to be installed on a raised platform,
a Z-type ember protector (not supplied) must be fabricated to
fit your required platform height. The ember protector should
extend under the fireplace a minimum of 1". The ember
protector should be made of galvanized sheet metal (28 Ga.
minimum) to prevent corrosion (see figure 4).
STEP 6: Secure the fireplace to the framing through flanges
located on the sides of the fireplace (see figure 3).
2" min.
Figure 1
Figure 2
Figure 3

HEARTH EXTENSION:

A hearth extension is required to protect the combustible floor
constructed in front of the fireplace. The hearth extension is
not included and must be fabricated. The hearth extension
must project at least 12 inches one side and 20 inches on the
other side of the fireplace opening (see drawing on front
cover).
3
FRAMING DIMENSIONS
CORNER INSTALLATION
NAILING FLANGES
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