5-Burners Gas-On-Glass Cooktop In Black. This KitchenAid® 30 Gas-on-Glass Cooktop is both easy to clean and the most powerful cooktop in its class. 56.2K total BTU, including a central 18K BTU burner, helps execute high-heat techniques, like stir-frying and searing. The glass top and dishwasher-safe elements, like professionally-inspired stainless steel knobs and continuous cast-iron grates, make cleaning up your creations almost as easy as cooking them.