When preparing to light a pulverized coal fire, what is not necessary to check?

In the context of preparing to light a pulverized coal fire, checking coal source documentation is not necessary for the immediate process of ignition. The ignition temperature of the coal, air quality, and compatibility of the coal with the furnace are critical factors that directly influence the safety and efficiency of the ignition process.

The coal ignition temperature is essential to ensure that the coal will ignite properly for combustion, while the air quality is crucial for ensuring that there is enough oxygen to support combustion and to avoid the risks associated with poor air quality. Additionally, understanding the compatibility of the coal with the furnace assures that the type of coal being used will perform well in the heating system without causing damage or inefficiencies.

In contrast, coal source documentation primarily serves as a record-keeping measure and may be important for tracking the quality and source of the coal, but it does not influence the immediate physical aspects of lighting a fire. Therefore, it is not necessary to check this documentation in the immediate preparation for lighting a pulverized coal fire.