Heavy duty Kamado grill has ceramic body and fire bowl providing insulation for year round cooking. Domed lid creates convection style cooking. 604 Sq. In. cooking on stainless steel and cast iron cooking grates. Air output is controlled with top vent and air input is controlled with bottom vents. Calibrated controls with smoker knobs, removable ash drawer, and electric starter port. 2 slatted wood drop down shelves (52 In. width with shelves extended). Includes: natural lava cooking stone, vinyl cover, sturdy cart with locking casters, easy-lift spring assist, and HeatZone dial system. Lump charcoal is recommended for faster start and and higher temperatures with less ash. Quickchange Gas Insert easily slides in to interchange with ash drawer for gas grilling - sold separately.