What is 'make-up water' in a boiler system?

Make-up water in a boiler system refers to the water that is added to replace the water that has been lost due to evaporation, blowdown, or other processes. This addition is essential for maintaining the proper water level in the boiler, which is crucial for efficient operation. The need for make-up water arises because boilers do not operate in a closed system; some water is inevitably lost during normal operation.

Using make-up water helps ensure that the boiler can continue to function effectively without compromising safety or efficiency. If make-up water were not added, the water level could drop too low, leading to overheating or damage to the boiler components. The quality of make-up water is also important, as it should have the appropriate chemical balance to prevent scaling and corrosion within the system.