A team was put together for the purpose of evaluating the (3) existing RTO's (Regenerative Thermal Oxidation unit) in the plant to determine if any energy savings could be realized by investigating the efficiency of the operation of the units. The three (3) Precision Sand RTO units were picked because they were the biggest users of energy in the Precision Sand process. The cost to run one of these units at the time of the project was approximately $20.00 per CFM per year when gas was at $9.00 per mbtu. This equates to approximately $1,300,000 per unit annually.