The Economizer is one of the increasingly popular process equipment used to recover waste heat, and it can be manufactured with finned or bare tubes depending on the application area, offering various material options. It is used for the purpose of recovering waste heat expelled from equipment such as industrial ovens, cogeneration units, hot water, steam, or thermal oil boilers.
The use of an Economizer results in an efficiency increase ranging from 3% to 15% in boiler or facility efficiency. Depending on the efficiency increase and the utilization of waste heat, fuel savings are achieved. A 21°C reduction in flue gas temperature results in an average 1% increase in total boiler efficiency.