Weber Charcoal Heat ControllerWith Webers Charcoal Heat Controller for 22 kettle charcoal grills (excluding 22" Jumbo Joe Premium models), you can easily set up your grill for high heat searing or low and slow cooking. Comprised of a cone and diffuser ring, it reduces the guesswork for less experienced grillers and adds a new level of mastery for backyard pros. The cone positions charcoal for up to 7 hours of low and slow cooking when used with charcoal briquettes, while the