BORETTI CFBG902AN3 Instruction On Mounting And Use Manual page 19

Correct use of the dual burner (fig. 3.6a - 3.6b)
The flat-bottomed pans are to be placed directly onto the pan-support.
When using a WOK you need to place the supplied stand in the burner
to avoid any faulty operation of the dual burner (figs. 3.6a - 3.6b).
Important:
The special grille for wok pans (fig. 3.6b) MUST BE PLACED ONLY over
the pan-rest for the dual burner.
WRONG
Fig. 3.6a
Some models only
CORRECT
Fig. 3.6b
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