What type of steam is produced by a properly operating boiler?

A properly operating boiler produces dry and saturated steam. This type of steam indicates that the steam has reached the boiling point, is free of moisture, and is at a temperature that corresponds to its pressure. Dry steam is essential for efficient heating, as it carries maximum energy without the presence of water droplets, which can cause erosion and reduce the overall efficiency of heating systems.

In contrast, the other types of steam mentioned do not provide the same quality or efficiency. Condensed steam refers to steam that has turned back into water, while dirty steam implies contamination, which can result from mineral deposits or other impurities in the water. Wet and mixed steam contains mixtures of vapor and liquid, which can lead to inconsistent heating and potential equipment damage or inefficiencies. Thus, the production of dry and saturated steam is a critical indicator of proper boiler operation, ensuring both efficiency and system safety.