1 1/2”
1 1/2”
1 1/2”
Required Clearance to Combustibles
FIGURE 3
FIGURE 2
9
The STANDARD Series fireplace and DM 54 chimney
system is tested and listed for installation with “clearance to com
-
bustibles” as follows:
The STANDARD Series firebox side walls and back wall
require 1-1/2” clearance. (Figure 2)
The smoke dome front wall requires 0” clearance.
All DM 44 and 54 chimney components require 0”
clearance. (Figure 2).
Note:
“Combustibles” are defined as “normal construction materi
-
als” and are considered to be: wood framing materials, particle
board, mill board, plywood sub-flooring, plywood paneling and
wood flooring.
Sheathing materials, such as plywood, particle board and
drywall may cover the smoke dome front at 0” clearance.
All combustible sheathing materials that protrude beyond
front of firebox must be held 8” away from the sides of the firebox
opening and 8” above the top of the firebox opening. Drywall must
be cut 2” back from the firebox opening sides and 8” above the top
of the opening.
WARNING:
Maintain a minimum of 3” clearance to insulation
and vapor barriers. See page 20.
Notes:
A. The STANDARD Series fireplace is rated for
installation on a combustible floor system when using the Fire-Lite
application only. See pages 47-55 for Fire-Lite installation
instructions.
The STANDARD Series fireplace must sit upon a
concrete support slab designed to bear the total installed weight
of the fireplace and DM 54 chimney system. (See Figure 2 for ad
-
ditional details). These support slabs can have no wood underpin
-
nings. (Figure 3)
B. Concrete support slabs for STANDARD Series fire
-
places must provide the noncombustible hearth extension substrate
needed to support the code required noncombustible hearth exten
-
sion finish materials. (Figures 2 and 3)
C. All STANDARD Series fireplaces shall have hearth
extensions of approved noncombustible material such as brick,
tile, or stone that is properly supported and with no combustible
material against the underside thereof. Wooden forms used during
the construction of hearths and hearth extensions shall be removed
when the construction is complete.
D. If a raised fireplace floor and raised hearth extension
are preferred, the raised underlying structure must be built of non-
combustible material and must sit on noncombustible substrate.
