e)
Select three of the large random coals and two of the large square
coals and arrange as shown behind the second row of coals, using the
ribs in the fuelbed matrix as a guide for placement (see figure 8
below).
Fig. 8
f)
Select the remaining two large square coals and two random coals and
position to fill the gaps at the rear of the fuel-bed (see figure 9 below).
Fig. 9
52
Random
Square
Random
Square
Random
Square
Random
Random
Square