40
FIGURE 84
FIGURE 85
FIGURE 86
The MAGNUM fireplace is not rated for installation on a
combustible floor system unless used in the Fire-Lite application (see
Pages 60 - 69). MAGNUM fireplaces 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 fill. 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 floor 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 capable
of supporting the slab, Isokern unit and the chimney.
For multi-floor 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
responsibility of the General contractor to insure adequate foundations.
MAGNUM fireplace weights and “foot print” areas:
The total fireplace 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
