What does 'boiler horsepower' measure?

Boiler horsepower is a unit of measurement that specifically quantifies a boiler's capacity to produce steam. It represents the amount of steam generated per unit of time and is traditionally defined as the ability to produce 34.5 pounds of steam per hour at 212°F. Understanding this measurement is crucial for evaluating a boiler's performance and ensuring it meets the needs of the system it serves.

The other choices do not accurately reflect what boiler horsepower measures; for instance, temperature, volume, and pressure are important factors in boiler operation but do not specifically quantify the steam-generating capacity of the boiler itself. Recognizing the significance of boiler horsepower aids in better managing boiler systems and their efficiencies.