Flavel Kenilworth HE Installation, Maintenance & User Instructions page 60

f) Select the four remaining large pebbles and position as shown along
the rear of the fuel-bed base in fig. 17 below.
Fig. 17
g) Do a final check that the pebbles are layed out as shown below in
Fig. 18
Fig. 18
The exact position and fit of the pebbles may be very finely adjusted to give the
most pleasing and random appearance.
4 off large coals
L L
L L
S
FR
FR
60
L L
L
S
FR
FR