What is the minimum unobstructed width required for passageways around all sides of boilers?

The minimum unobstructed width required for passageways around all sides of boilers is typically set at 18 inches. This specification is critical for several reasons. First, it ensures that there is sufficient space for personnel to safely access and service the boiler. Adequate passageways are essential for maintenance tasks, allowing workers to maneuver around the equipment without risk of injury.

Additionally, this width allows for the safe transport of tools and parts necessary for repairs or operational checks. Moreover, passageways must comply with safety codes and regulations, which are designed to prevent hazards associated with crowded or inaccessible work areas near high-temperature equipment.

Therefore, the 18-inch requirement is a balance between safety, accessibility, and operational efficiency, providing a safe working environment for technicians and maintenance staff while ensuring that the equipment operates effectively.