Boiler Horsepower Formula:
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Definition: This calculator converts BTU per hour (BTU/h) to boiler horsepower (BHP), a unit used to measure boiler output.
Purpose: It helps engineers, HVAC professionals, and boiler operators convert between these common power measurement units.
The calculator uses the formula:
Where:
Explanation: One boiler horsepower is defined as the energy required to evaporate 34.5 pounds of water per hour at 212°F, which equals 33,475 BTU/h.
Details: Accurate conversion between BTU/h and BHP is essential for proper boiler sizing, efficiency calculations, and system design in heating applications.
Tips: Simply enter the BTU/h value (must be > 0) and the calculator will instantly provide the equivalent boiler horsepower.
Q1: What's the difference between BHP and regular HP?
A: Boiler horsepower (BHP) is specifically for boiler output capacity (33,475 BTU/h), while mechanical horsepower is 2,545 BTU/h.
Q2: Why is the conversion factor 33,475?
A: This comes from the historical definition of boiler horsepower as the energy to evaporate 34.5 lb of water per hour at 212°F.
Q3: How precise is this conversion?
A: The conversion is mathematically exact based on the standard definition of boiler horsepower.
Q4: When would I need this conversion?
A: When comparing boiler specifications, calculating system efficiency, or working with mixed-unit technical documents.
Q5: Can I convert BHP back to BTU/h?
A: Yes, simply multiply BHP by 33,475 to get BTU/h.