1. What is BTU to Boiler Horsepower Conversion?

Definition: This calculator converts heat energy in BTU per hour to equivalent boiler horsepower.

Purpose: It helps engineers and technicians in power plants, heating systems, and industrial applications convert between these common power units.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( BHP \) — Boiler horsepower
• \( Q_{btu} \) — Heat energy in BTU per hour

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

3. Importance of Boiler Horsepower Calculation

Details: Proper conversion between these units is essential for boiler sizing, system design, and energy efficiency calculations in steam systems.

4. Using the Calculator

Tips: Simply enter the BTU per hour value (must be > 0) and click calculate to get the equivalent boiler horsepower.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between boiler HP and mechanical HP?
A: Boiler HP (33,475 BTU/h) measures steam production capacity, while mechanical HP (33,000 ft-lb/min) measures mechanical power.

Q2: Why 33,475 BTU/h for one BHP?
A: This comes from the energy needed to evaporate 34.5 lbs of water at 212°F in one hour (970.3 BTU/lb × 34.5 lbs/h).

Q3: Is boiler HP still commonly used?
A: Yes, especially in North America for rating boiler capacity, though kW is becoming more common internationally.

Q4: How accurate is this conversion?
A: The 33,475 BTU/h = 1 BHP is a standardized value. Actual boiler efficiency may vary.

Q5: Can I convert back from BHP to BTU/h?
A: Yes, simply multiply BHP by 33,475 to get BTU/h.