Expand you outdoor cooking capabilities with this wok-ready cooktop. Download 2008 Built-In Grill and Cooktop Specifications [1.8MB PDF] Built-In Cooktop Standard Features: Natural gas cooktop with a wok-friendly cooking ring design 32,000 BTUs Enameled cast iron burner for durable and dependable service . Four concentric burner rings Integrated piezo ignition All stainless steel housing and hardware Stainless steel cover Built-In Cooktop Options and Accessories: Liquid propane gas conversion Flexible Power The Kalamazoo wok-ready built-in cooktop features four-concentric burner rings for ultimate heat control and flexibility. On low, only the inner two rings are lit for perfect simmering. As the control is turned toward high, the outer burner rings kick in to deliver 32,000 BTUs of cooking power.