A boiler shall have an unobstructed passageway of how many inches around all sides?

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Multiple Choice

A boiler shall have an unobstructed passageway of how many inches around all sides?

Explanation:
Adequate clearance around a boiler is required to ensure safe operation, service access, and proper ventilation. The standard calls for an unobstructed passageway of 18 inches around all sides of the boiler. This space lets technicians open access panels, perform maintenance, and provides enough room for combustion air and exhaust flow. Smaller clearances would hinder maintenance and air supply, while larger ones aren’t required by the rule.

Adequate clearance around a boiler is required to ensure safe operation, service access, and proper ventilation. The standard calls for an unobstructed passageway of 18 inches around all sides of the boiler. This space lets technicians open access panels, perform maintenance, and provides enough room for combustion air and exhaust flow. Smaller clearances would hinder maintenance and air supply, while larger ones aren’t required by the rule.

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