40
FIGURE 84
FIGURE 85
FIGURE 86
The MAGNUM replace is not rated for installation on a com-
bustible oor system unless used in the Fire-Lite application (see Pages
60 - 69). MAGNUM replaces must be built upon a concrete support
slab with no wood underpinnings. Proper reinforced concrete support
slab for MAGNUM installations may include the following types:
1. Slab on grade: standard residential, minimum four inch (4”) thick,
2500 psi concrete foundations on properly compacted ll. This type
foundation can support Isokern installations up to thirty feet (30’) overall
height (brickledge installations not included). (Figure 84)
2. Slab-on-grade foundations, thickened and reinforced: for additional
load carrying. (Figure 85)
3. Off-grade slab on foundation walls and footings.
Projects with off-grade oor systems as well as upper story
installations require this type of support. (Figure 86)
When building off-grade support slabs the code required hearth
extension substrate should be built as a continuation of the support slab
for the MAGNUM unit. (Figure 86)
Supports for off grade slabs must be concrete or steel and ca-
pable of supporting the slab, Isokern unit and the chimney.
For multi-oor and back-to-back installations proper
weight computation on an individual basis is required. Consult local
structural engineer for load bearing requirements.
Important: Foundations and footings must meet local code and be
approved by the local building authority. For any foundation design and
load requirements check with local structural engineer. It is the responsi-
bility of the General contractor to insure adequate foundations.
MAGNUM replace weights and “foot print” areas:
The total replace weight for each MAGNUM model
listed below includes: MAGNUM unit pumice parts only:
A. Model MAGNUM 28: 1040 lbs.
B. Model MAGNUM 36: 1300 lbs.
C. Model MAGNUM 42: 1420 lbs.
D. Model MAGNUM 48: 1600 lbs.
Totals are exclusive of any chimney components.
See page 43 for Isokern DM chimney component weights.
The “footprint” area for each model is as follows:
A. Model MAGNUM 48 @ 35.5” x 28” = 6.90 sq. ft.
B. Model MAGNUM 36 @ 43” x 28” = 8.36 sq. ft.
C. Model MAGNUM 42 @ 49” x 28” = 9.52 sq. ft.
D. Model MAGNUM 48 @ 53” x 28” = 10.3 sq. ft.
“Footprint” areas listed above are base plate dimensions for
each model and are exclusive of code required hearth extension areas.
See page 39 for hearth extension dimensions.
Note: Additional support slab area may be required at the side or back of
the MAGNUM unit to provide bearing for structural supports to a DM
54 offset chimney sequence.
(See pages 47 - 50 for offset chimney support requirements.)
Concrete Support
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