By about one hour and a half hours after IGNITION

Jackie's remains fall through the perforated main hearth of the cremator into the lower hearth. (Exhaust gases will pass over these remains on their way to the chimney). From the lower hearth Jackie is raked into a trough called the ash refining hearth. Air supplied to the ash refining hearth will cool her bone fragments down. Finally a door in the ash refining hearth is slid open and Jackie is collected in an ash box.