Flavel Kenilworth HE Installation, Maintenance & User Instructions page 28

d) Select three of the large pebbles and position on the three central ribs
in the fuelbed as indicated in Fig. 32 below.
Fig. 32
e) Select the two small pebbles and arrange along the second row of the
fuelbed. (See fig. 33 below)
Fig. 33
3 off large pebbles
2 off small pebbles
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