What is one function of the water leg in a boiler?

The water leg in a boiler plays a significant role in managing the heat exchange process within the system. One of its primary functions is to absorb waste heat. This absorption helps to maintain an efficient operation by capturing residual heat that would otherwise escape, thereby improving the overall thermal efficiency of the boiler. By absorbing waste heat, the water leg can ensure that the boiler operates at optimal temperatures, reducing the risk of overheating and prolonging the lifespan of the equipment.

This function underscores the importance of effective heat management in boilers, highlighting how components like the water leg contribute to efficiency and performance. Other options address different aspects of boiler operation but do not specifically relate to the function of absorbing waste heat.