What key information is stamped on a boiler?

The stamping on a boiler is critical for safety, identification, and compliance with regulations. The key information typically found includes the serial number, which uniquely identifies each boiler, allowing for tracking and service records. The manufacturer's name is essential for obtaining parts and service. The Maximum Allowable Working Pressure (MAWP) is a vital safety parameter indicating the highest pressure at which the boiler is designed to operate safely. Finally, the heating surface area is important for understanding the capacity and efficiency of the boiler in generating steam or heat.

While the other choices mention useful information, they do not encompass the essential details that are required to be stamped on the boiler itself, which is primarily aimed at safety and operational standards.