The heavy duty Guru Firebox Divider is a ceramic divider that fits in the center of the firebox on your Gourmet Guru Grill, giving you the option of having direct and indirect cooking at the same time. For smaller cookouts, you can conserve fuel by filling only half the firebox with charcoal when this ceramic firebox divider is in place. This increases efficiency and cuts down on charcoal use, saving you money.