BRICKLEDGE
BLOCK
OFFSET
CASING
OUTER
LINER
INNER
CROWN CAP
LARGE
CROWN CAP
SMALL
43
DM 54 Chimney: Component Weights
Isokern DM Chimney Weights:
Total installed Isokern DM chimney weight will vary ac-
cording to each specic installation. Total installed chimney weight
will be based on the overall height and the conguration of the
chimney system.
Chimneys may be straight vertical stacks of DM 54
outer casing and inner liner but may also include the use of offset
chimney blocks, brickledge, chimney reinforcement, brick/stone
veneers, cement crown caps and clay chimney pot termination.
The DM 54 chimney component weights are as follows:
Small crown cap: 80 lb.
Large crown cap: 100 lb.
Brickledge: 110 lb.
14” diameter inner liner: 40 lb.
Outer casing block: 90 lb.
Offset block*: 110 lb.
*Construction of an offset block sequence will shift
a portion, if not all of the chimney load off of the rebox and
smoke dome. Additional reinforced concrete footing and slab area
may need to be provided adjacent to or as a continuation of the
primary support slab area for bearing the steel or masonry support
required for an offset sequence. (See pages 47 - 50 following.)
Notes:
Plan chimney conguration carefully before construct-
ing the required reinforced concrete support foundation for the
MAGNUM replace. Be sure that enough structural masonry area
is available to support any offset chimney sequence included in the
proposed chimney design.
Isokern is not responsible for site specic structural sup-
port details and load specications for MAGNUM replace and
DM chimney system installations. Consult local structural engineer
for proper job-specic support structure design, sizing and load
bearing specications.
Unless otherwise noted, all oor drawings in this manual
are merely illustrations to indicate the presence of an underlying
noncombustible support structure to the MAGNUM installation.
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