This Jenn-Air® luxury gas downdraft cooktop features four sealed burners, including a 17,000 BTU ultra-high-output burner. Its impressive JX3™ downdraft ventilation system quickly and efficiently clears the air without a hood. JX3 downdraft ventilation system with 3 speeds The specially designed downdraft ventilation system uses proximity ventilation to capture smoke, steam and odors at the cooking surface, whisking them down and out of the kitchen before they can escape. 17,000 BTU ultra-high-output burner Enjoy the robust heat necessary for high-powered cooking techniques, whether searing a steak, stir-frying vegetables or rapidly boiling water. 5,000 BTU ultra-low-output burner with melt cap Provides the optimal temperature for gently cooking delicate sauces and foods. DuraFinish Protection With excellence in every detail, DuraFinish protection helps keep your cooktop's surface looking like new, resisting yellowing, staining and scratching. Brass burners with removable base Elegant brass burners effectively direct heat for desired cooking results and can be removed for easy cleaning. Convertible to duct-free ventilation Keep the view from your kitchen open and free from ductwork with this optional kit that allows conversion to duct-free ventilation.