4
Once the fireplace is constructed you must wait at least
28 days before building a fire to give adequate time to
cure. This will provide ample time for any water resi-
due to evaporate, eliminating the adverse reaction of
the combination of water and fire.
3.2 Assembly of Components
Components that become broken during shipment and
handling can be mortared back together providing the
breaks or cracks are clean and the original alignment
can be maintained. Components broken into multiple
pieces must be replaced.
If this is your first Stone Age installation, it is suggest-
ed that you first assemble the components without
mortar to familiarize yourself with how the compo-
nents fit together. See Figure 1.
A. Determine the height off the floor you want to
place the base plate (1). The base plate, plus fire-
brick, will be about 5 ½ inches thick. Set cement
blocks under the base plate to obtain the desired
height. Note that holes in many pieces of the kit al-
low the placement of rebar and mortar for additional
reinforcement, if desired.
B. When the base is level and square, set the base
plate (1). Level it from side to side and front to back.
See Figure 4.
C. Install the sidewall pieces (2) and the lower and
middle back plates (3A, 3B and 4A, 4B). Use 3/8”
joint of mortar between each section. Smooth out
mortar and ensure sections remain level. See Figures
5 and 6.
D. Lay a straightedge across the left and right side-
wall to ensure level is maintained.
E. Install the slanted sidewalls (6 and 7), and the up-
per back plates (5A, 5B). Check the sides and the
top with a level. See Figure 7.
F. After installation of the back plates and side-
walls, install the firebrick inside the firebox, using
1/8-inch mortar joints. Cover the floor first with 1/8-
inch high temperature cement. On the side walls,
stand the brick on its sides, and on the back wall, lay
the brick flat, leaving 1/2-inch air space between the
firebrick and fireplaces walls. Stack brick until it is
flush with the tops of pieces 5A, 5B, 6 and 7. See
Figures 8 and 9.
Figure 4. Base Plate
2
3A
3B
4A
4B
2
2
5A
5B
6
7
1
4A
4B
2
2
2
Figure 5. Lower Back Plates & Sidewalls
Figure 6. Middle Back Plates & Sidewalls
Figure 7. Upper Back Plates & Sidewalls
Summary of Contents for NA36IND
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