Which condition requires the use of demineralized water in high pressure boilers?

Using demineralized water in high-pressure boilers is essential primarily for preventing scale buildup. When untreated water is used, it typically contains various minerals and impurities that can precipitate and form scale on the boiler's heat transfer surfaces. This scale can significantly impair heat transfer efficiency, leading to higher fuel consumption and potential overheating of boiler components. By employing demineralized water, which is free from these minerals, you can greatly reduce the risk of scale formation, thereby ensuring the longevity and efficiency of the boiler.

While improving combustion efficiency, reducing energy consumption, and increasing steam production are important operational goals for a boiler system, they are not directly addressed by the type of water used. Instead, using demineralized water primarily helps manage the physical condition of the boiler system, ensuring it can operate effectively and safely without the adverse effects associated with mineral deposits.