What is the purpose of handholes and manholes in boiler systems?

Handholes and manholes in boiler systems are designed specifically to provide access for various maintenance activities, including cleaning and inspection. They enable operators and maintenance personnel to enter parts of the boiler that are otherwise difficult to reach, ensuring that the internal surfaces of the boiler can be examined for any signs of wear, corrosion, or deposits. Regular inspections through these access points help maintain the efficiency and safety of the boiler by allowing for timely maintenance and cleaning, which ultimately contributes to the safe operation of the system.

The other options do not accurately describe the primary function of handholes and manholes. While structural support is crucial for the integrity of the boiler, these access points are not primarily used for that purpose. They do not facilitate heat exchange directly, nor do they serve any aesthetic purpose in the design or operation of the boiler system.