18
Earthcore Industries
Isokern Maximus Linear Series Gas Fireplace
01/2020
Isokern Maximus Linear Assembly Instructions
The following assembly instructions identify the parts by
name, part number and the placement of each part in the
assembly process.
NOTE:
At all component placements, be sure to mortar all
contact surfaces with Earthcore Adhesive. Check for complete
sealing of each contact joint while assembly progresses.
1.
Apply Earthcore Adhesive to the joint between each
baseplate part and set the base plates in a full bed of
Earthcore Adhesive on a level support surface
(Figure 9)
.
See page 15 for supporting floor system. Do not set the
base plate so that it is in span. Refer to pages 6-13
for part
dimensions.
RAISED HEARTH:
If the design preference is for a raised hearth (floor of the
fireplace elevated above the room’s floor), then the base plate
can be set on a noncombustible platform that is built up to the
desired raised hearth height on the concrete support slab. See
page 18.
When calculating raised hearth height, be sure to allow for
the 3”-thick base plate plus the 2 1/2”-thick fire brick floor in
addition to the height of the platform.
For all “raised hearth” construction where concrete blocks
are used to create the raised platform, it is necessary to use
the base plate. Be sure to Earthcore Adhesive the concrete
block platform together. CMU used for base plate support
should be rated ASTM 90.
Whether a hearth or a raised hearth is installed, the
combustible floor in front of the fireplace must be covered
with a noncombustible hearth extension set tight against the
fireplace front and extending at least 20” out from the finished
fireplace and at least 12" beyond the sides of the fireplace
opening. See pages 14 and 15
2.
Set the first course of the firebox side walls and back
walls into place
(Figures 10 and 11).
NOTE:
It may be convenient to dry set the first course of
side walls and back walls into place on the Isokern base
plate and then trace their position on the base plate with a
pencil.
After outlining the dry set pieces, remove them and apply
Earthcore Adhesive to the areas traced on the base plate
where the side walls and back wall are to sit. By doing this,
the first layer of wall components can be set directly into
Earthcore Adhesive already applied to the proper areas on
the base plate.
Earthcore
Adhesive
FIGURE 9
Earthcore
Adhesive
FIGURE 10
Part #M90
Earthcore
Adhesive
Part #M90
FIGURE 11
Base Plates:
48": Part# M93
72": Part# M91, M91
96": Part# M91, M93, 191
120": Part# M96, M92, M93
Back wall Course:
48": Part# M67
72": Part# 73, 72
96": Part# 160, 162, 73
120": Part# 71,162,162, 73
