18
Earthcore Industries
MAGNUM Series Fireplace
Supporting Floor System
The
Fireplaces are not rated for installation on a
combustible floor system.
Fireplaces must be built upon a
concrete support slab with no wood underpinnings. Proper
reinforced concrete support slab for fireplace installations
may include the following types:
1.
Slab on grade: standard residential, minimum four
inch (4”) thick, 2500 psi concrete foundation on properly
compacted fill.
(Figure 5)
2.
Slab-on-grade foundations, thickened and reinforced: for
additional load carrying.
(Figure 6)
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. When building
off-grade support slabs the code required hearth extension
substrate should be built as a continuation of the support
slab for the fireplace unit.
(Figure 7)
. 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 a 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
a local structural engineer.
It is the responsibility of the
General Contractor to insure adequate foundations.
Fireplace weights* and “foot print” areas: The total
fireplace weight and footprint for each model listed below
includes: Fireplace pumice components only:
MAGNUM 84: 3198 lbs. @ 95
11
/
16
” x 28” = 2679¼ sq.in.
MAGNUM 96: 3515 lbs. @ 108
3
/
16
” x 28” = 3029¼ sq.in.
MAGNUM 108: 3979 lbs. @ 120
3
/
16
” x 28” = 3365¼ sq.in.
MAGNUM 120: 4265 lbs. @ 131¾ ” x 28” = 3689 sq.in.
“Footprint” areas listed above are base plate
dimensions for each model and are exclusive of code
required hearth extension areas. See page 17 for hearth
extension dimensions.
FIGURE 5
FIGURE 6
FIGURE 7
