Primo Grills unique patented oval shape delivers the highest cooking flexibility and efficiency of any other ceramic grill. It creates two different and distinct cooking zones. If you've ever tried to grill a steak and vegetables at the same time it's likely that the steak came out fine, but the vegetables came out too charred. Or you had to roast the vegetable first, then keep them warm while you grill the steaks. Now you know why the Primo Oval was developed. Primo's Oval Design gives you more control when cooking foods that require different temperatures and locations to the natural lump charcoal. Commonly referred to as "two-zone" cooking, it's the ability to simultaneously cook with direct and indirect heat. It's similar to turning off half the burners on a gas grill, but Primo offers all the flavor of a natural wood fire!