3
bricks to each other and to the base plate. See
Figure 6. Use level to make sure floor is even.
Figure 6. Lay Floor
E. After the floor is completed, brick the side and
back walls to the bottom of the moisture chamber
by laying the bricks on their side, as shown in
Figure 7. Four layers of brick are required.
Figure 7. Install Brick Walls
F. When this part (firebox) is completed, it will
look like Figure 8, looking from the back.
Figure 8. Firebox Completed
G. Begin outer wall construction. Start with the
larger, 2-piece L-shaped sections to create the
first layer, and then alternate with the smaller, 3-
piece sections, as shown in Figure 9. Install on
3/8”- inch bed of mortar with the components
mortared together.
Figure 9. Outer Wall Components
H. Installed, the components will look like Figure
10. Alternate layers until all pieces are used.
Note that mortar is not applied between the lower
layers and the firebrick in the firebox area, and
there will be a small gap, creating an airspace be-
tween the firebrick and the outer walls.
First Layer
Second Layer