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Related to boiler horsepower: brake horsepower
boiler horsepower[′bȯil·ər ′hȯrs‚pau̇·ər]
A measurement of water evaporation rate; 1 boiler horsepower equals the evaporation per hour of 34½ pounds (15.7 kilograms) of water at 212°F (100°C) into steam at 212°F. Abbreviated bhp.
A unit of measurement of the power of a steam boiler; equivalent to the evaporation of 34.5 lb of water per hour into dry saturated steam from and at 212°F.