Isokern Standard 36 - Installation

10 3/4”
OUTER CASING
12” HIGH
INNER LINER
6”HIGH STARTER
INNER LINER
3 3/4”
Magnum Fireplace Shown For Illustration Purposes Only
DM Chimney System: Installation Instructions
32
DM Chimney Alignment:
Where the chimney run is to be a straight vertical run
the DM outer casing block sits directly onto the Isokern smoke
dome lid. The DM outer casing block, properly set is intended
to be ush with the back face of the rebox smoke dome
assembly (Figures 48 and 49 ).
Set in this way the DM outer casing block will sit
three and three fourths inches (3-3/4”) back from the front face
of the smoke dome. (Figure 48).
This total set-back distance makes it possible for
a three and one-half inches (3-1/2”) thick bearing header to
pass over the rebox smoke dome assembly and for the DM
chimney to run straight up the back side of the bearing header
(Figure 49).
Installation of the DM chimney:
Begin straight DM chimney runs by setting a DM
outer casing block in a bed of mortar on top of the smoke dome
lid with the outer casing block centered on the lid from side to
side and ush with the back of the smoke dome lid.
Be sure that the outer casing block aligns with the ue
hole in the smoke dome lid.
Next set the DM inner liner’s six inch (6”) tall starter
piece (Figure 47) inside the rst outer casing block. The
“factory” version of the six inch (6”) tall inner liner starter
piece has a female end and a at end. Set this inner liner starter
with the at end down. Set the downward end into Earthcore
Mortar so that it is fully sealed to the smoke dome lid.
WARNING: Do not mortar the air space between the inner
liners and the outer casing blocks.
Starting with the six inch (6”) tall inner liner starter
piece creates six inch (6”) staggered horizontal joints between
the inner liner and the outer casing block.
Both the outer casing block and the inner liner
components have tongue and groove type detailing on each
end to assure alignment and interlock of the pieces as they are
stacked and glued together.
Notes: If the “factory” inner liner starter piece is broken or
otherwise unavailable then a full twelve inch (12”) tall inner
liner piece can be cut to six inches (6”) in height to make an
inner liner starter piece.
DM chimney inner liners can be stacked with either
the male or the female end up. In either case start the inner
liner stack with a six inch (6”) starter piece.
After setting the DM inner liner starter piece, apply
mortar to the top of the starter liner. Continue the straight
chimney run by placing a full height inner liner onto the six
inch (6”) starter liner. The top of this full height inner liner
will sit 6” above the top of the outer casing block that was
previously set.
FIGURE 45
FIGURE 46
FIGURE 47
FIGURE 48
FIGURE 49