How can poor water chemistry affect boiler performance?

Poor water chemistry has a significant impact on boiler performance, primarily by causing scaling and corrosion within the system. When the water used in the boiler contains excessive impurities, such as minerals and dissolved solids, these substances can precipitate and form scale on the heat exchange surfaces. This scaling acts as an insulating barrier, reducing the efficiency of heat transfer and causing the boiler to work harder to achieve the desired temperature and pressure.

Additionally, poor water chemistry can lead to corrosion, which weakens the metal components of the boiler. Corrosion is often exacerbated by the presence of oxygen or other corrosive agents in water. This not only leads to material degradation but can also result in leaks and failure of the boiler system, ultimately increasing maintenance costs and reducing operational reliability.

In contrast, the other options suggest improvements in performance that are not achievable under poor water chemistry conditions. Enhancements in combustion efficiency or steam quality, as well as stabilization of pressure levels, are typically reliant on optimal water conditions rather than poor chemistry. Therefore, focusing on maintaining proper water chemistry is critical to ensuring the longevity and efficient operation of a boiler system.