The Bison Built in Charcoal Grill head for your outdoor kitchen has been re-engineered for even greater performance The Bison Built-in charcoal grill’s new vent system and gasket features allows for greater temperature control with the ability to regulate the oxygen flow into the firebox.  The convenient built-in charcoal box makes it easy to enhance your favorite dishes and looks great in your outdoor kitchen. Now you can set up the Bull Bison charcoal grill for slow and low BBQ, or crank it up to get that steak house quality sear on your steaks and chops.