What type of energy do economizers primarily recover?

Economizers are systems used in various applications, such as heating, ventilation, and air conditioning (HVAC), to enhance energy efficiency. They primarily focus on recovering thermal energy, which encompasses the heat energy transferred during processes involving temperature changes.

In the context of economizers, this thermal energy recovery typically involves the heat that can be extracted from exhaust air or flue gases. By utilizing this recovered thermal energy, economizers can preheat incoming air or water, thereby reducing the amount of additional energy that needs to be supplied from other sources for heating purposes.

This process not only improves the overall efficiency of the system but also contributes to reducing operational costs and energy consumption, making it an important feature for energy-saving technologies in commercial and industrial environments.