What is the purpose of a condensate tank in a boiler system?

The purpose of a condensate tank in a boiler system is primarily to collect condensate for reuse. When steam is generated in the boiler, it can condense back into water as it travels through the system or when it is used for heating. This condensate is typically hot and contains energy that can be recovered and reused, making the system more efficient. By collecting condensate in a tank, the boiler system can utilize this water to supplement the feedwater, thus reducing water and energy costs. This practice also helps maintain the system's efficiency and ensures that valuable resources are not wasted.

In contrast, other options pertain to functions that do not align with the role of a condensate tank. Venting gases, measuring pressure, or reducing gas pressure are distinct functions typically managed by other components in the boiler system, such as venting systems, pressure gauges, and regulators, respectively.