Some manufacturers have rock style burners and use specifically colored and sized ceramic rocks in the burners. Can these be changed out for other rocks?
In the case of sealed direct vent fireplaces, it is important that the size and placement of the rocks remain approximately the same as recommended by the manufacturer. As long as these criteria are met, the rocks can be replaced with other ceramic rocks of slightly different sizes and colors. With open units, more drastic changes can be made.
