Char-Broil Charcoal Manager Use to position charcoal in one of three distinct patterns for various heats or recipes in your charcoal grill Usage patterns provide up to 7 hours of heat, and provide the easiest way to barbeque slow and low Usage 1: 3 hours of heat at 425F Usage 2: 5 hours of heat at 325F Usage 3: 7 hours of heat at 225F