1. What is BTU to HP Conversion?

The BTU to HP conversion calculates boiler horsepower from British Thermal Units per hour. This conversion is essential for sizing and comparing boiler capacities in different measurement systems.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• \( BTU/hr \) — British Thermal Units per hour
• \( 33475 \) — Conversion factor (BTU/hr per boiler horsepower)

Explanation: One boiler horsepower is defined as the energy required to evaporate 34.5 pounds of water at 212°F in one hour, which equals 33,475 BTU per hour.

3. Importance of Boiler HP Calculation

Details: Accurate horsepower calculation is crucial for proper boiler sizing, energy efficiency assessment, and compliance with industry standards for heating systems.

4. Using the Calculator

Tips: Enter BTU/hr value (must be greater than 0). The calculator will automatically convert to boiler horsepower using the standard conversion factor.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between boiler HP and mechanical HP?
A: Boiler horsepower (33,475 BTU/hr) is different from mechanical horsepower (33,000 ft-lb/min or 2,545 BTU/hr). They measure different types of power output.

Q2: Why is 33,475 BTU/hr used for boiler HP?
A: This standard comes from the historical definition of evaporating 34.5 pounds of water per hour from and at 212°F, which requires 33,475 BTU.

Q3: Can this calculator be used for all types of boilers?
A: Yes, the conversion factor is standard for all boiler types when converting between BTU/hr output and boiler horsepower rating.

Q4: How accurate is this conversion?
A: The conversion is mathematically exact based on the standard definition of boiler horsepower. However, actual boiler efficiency may vary.

Q5: When should I use this conversion?
A: Use when comparing boiler specifications, sizing new equipment, or converting between different measurement systems in heating applications.