Flavel FVPC**MN Installation, Maintenance & User Instructions page 23

3.1.3 Pick pebbles A to E and arrange along the the front rail, ensuring that
they are evenly spaced. Use the recess's in the front ceramic rail as a
guide for placement. (See fig. 25 below)
Fig. 25
Pebble A
Pebble B
3.1.4 Select pebbles F to I and arrange behind the front row of pebbles,
ensuring that flame paths as indicated below are not interupted.
(See fig. 26 below)
Fig. 26
Pebble F
Pebble G
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Pebble C
Pebble D
Pebble E
Pebble H
Pebble I