17
EXCEPTION:
If insulation is used in walls surrounding the
fireplace, insulation may be installed behind sheathing of
gypsum board, plywood, particle board or other material
on the side facing the Isokern. The facing material cannot
be within 1 1/2” to the fireplace sidewalls.
The MAGNUM Series fireplace must sit upon a
concrete support slab designed to bear the total installed
weight of the fireplace. These support slabs can have
no wood underpinnings.
(Figure 3)
See page 18 for
more information on weight loads.
Concrete support
slabs for MAGNUM Series fireplaces must provide the
non-combustible hearth extension substrate needed
to support the code required non-combustible hearth
extension finish materials.
(Figures 4)
All MAGNUM Series fireplaces shall have hearth
extensions of approved non-combustible 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 must be removed when the
construction is complete.
If a raised fireplace floor and raised hearth extension
are preferred, the raised underlying structure must
be built of non-combustible material, be structurally
designed to hold the weight of the fireplace and must sit
on non-combustible substrate.
Earthcore Industries
MAGNUM
Series Fireplace
Required Clearance to Combustibles
FIGURE 4
30”
Hearth Extension
Requirements
for 84” - 120” Models
1 1/2”
FIGURE 4
1½” Clearance
0” Clearance
FIGURE 3
