What is a manhole used for on a boiler?

A manhole on a boiler serves the essential purpose of allowing access for inspection and maintenance inside the boiler. This access is critical for ensuring the safe and efficient operation of the boiler system. Regular inspection can help identify potential issues such as corrosion, sediment buildup, or other maintenance needs that could affect performance or safety. By providing a means for personnel to enter and inspect the interior of the boiler, a manhole plays a vital role in routine maintenance operations and safety protocols.

It's important to highlight that while other components and features of a boiler are associated with different functions, such as pressure regulation, steam discharge, and venting of combustion gases, the specific function of a manhole is solely focused on facilitating access for maintenance and inspection. Understanding this distinction is key for anyone working with boiler systems.