What is the typical benefit of using an economizer in a boiler?

An economizer in a boiler system plays a crucial role in enhancing energy efficiency by recovering waste heat from the flue gases that would otherwise be lost to the environment. By utilizing this recovered heat to preheat the feedwater entering the boiler, the economizer contributes significantly to reducing the overall operational cost. This is achieved because less fuel is required to reach the desired steam or hot water output, resulting in lower fuel expenses and improved boiler efficiency. The operational savings gained through these efficiencies can lead to a substantial reduction in energy costs over time, making the use of an economizer a financially beneficial choice for boiler operations.

This mechanism also helps improve the overall thermal efficiency of the boiler system, thereby minimizing energy waste and enhancing sustainability. While other benefits may exist, the primary focus of an economizer is to economize on fuel use and decrease operating expenses.