Figure 4.7 Laying the first circle of bricks
4. Trim off the polythene sheet outside the circle of bricks.
Figure 4.8 The completed circle
5. There are six firebox walls leaving
five firebox channels, each 18 cm
wide. In Kenya we used the smaller
bricks for the firebox walls. Lay
and level the bricks in place
ensuring that each joint is well
filled with mortar. The bricks at the
end of each row should be shaped
to fit within the outer circle of
bricks laid in the previous section.
Figure 4.9 The first course of firebox channels
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