30 Inch Gas Cooktop with 5 Sealed Burners, Heavy-Duty Cast-Iron Continuous Grates, Simmer Flame, Electronic Ignition/Reignition System, Backlit Knobs, and LP Conversion Kit Included. Heavy-Duty Cast-Iron Continuous Grates. Watertight Sealed Burner Bowl. 28 1/2″ – 29 1/2″. 19 1/2″ – 19 5/8″. 20,000 BTU Center Power Burner. Sealed center power burner provides 20,000 BTUs of high-performance cooking power. Hestan’s pro-simmer maintains delicate simmering with a gentle and consistent flame. Heavy-duty Cast-iron Continuous Grates. Patent-pending heavy-duty cast-iron continuous grates allow for easy movement of cookware and maximize cooking surface. Watertight sealed burner bowl maximizes airflow to burners while ensuring easy cleaning. Robust electronic ignition/reignition system provides safe, quick and proper gas ignition. Backlit knobs and Hestan signature control panel enhance both visibility and style. Special red illumination function indicates when the burner/grate is still hot. LP Conversion Kit Included.