0” CLEARANCE
Required Clearance to Combustibles
FIGURE 3
FIGURE 2
12
The MAGNUM Series fireplace and DM 54
chimney system is tested and listed for installation with
“clearance to combustibles” as follows:
The MAGNUM Series firebox side walls and back
wall require 1-1/2” clearance. (Figure 3)
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
materials” 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. (Figure 75)
Notes:
A. The MAGNUM Series fireplace is rated for
installation on a combustible floor system when using the
Fire-Lite application only. See pages 60-69 for Fire-Lite
installation instructions.
The Magnum 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 additional details). These support slabs can have
no wood underpinnings. (Figure 3)
B. Concrete support slabs for MAGNUM Series
fireplaces must provide the noncombustible hearth extension
substrate needed to support the code required noncombustible
hearth extension finish materials. (Figures 2 and 3)
C. All MAGNUM 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 noncombustible material and must sit on
noncombustible substrate.
