What maintenance task helps prevent scale build-up in the boiler?

Regular blowdown is essential for preventing scale build-up in a boiler. This maintenance task involves removing a portion of water from the boiler to eliminate impurities and dissolved solids that can accumulate over time. As water is heated in the boiler, minerals such as calcium and magnesium can precipitate out, leading to scale formation on the boiler surfaces. If not properly managed, this scale can reduce efficiency by insulating heating surfaces, increasing fuel consumption, and potentially causing overheating or damage to the boiler.

By performing blowdown regularly, operators can control the concentration of these minerals in the boiler water, thereby reducing the risk of scale formation. This task is crucial for maintaining optimal boiler performance and longevity. Other maintenance tasks, such as monthly inspections or calibrating pressure gauges, support overall boiler health but do not specifically address scale prevention like blowdown does. Replacing safety valves is vital for ensuring safety but is unrelated to the issue of scale build-up.