1. What is a Boiler Horsepower to BTU/hr Calculator?

Definition: This calculator converts boiler horsepower (BHP) to British Thermal Units per hour (BTU/hr).

Purpose: It helps engineers, HVAC professionals, and boiler operators understand the heat output capacity of boilers.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

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/hr.

3. Importance of BHP to BTU/hr Conversion

Details: Understanding this conversion helps in boiler sizing, system design, and energy efficiency calculations for heating systems.

4. Using the Calculator

Tips: Simply enter the boiler horsepower value (must be > 0) and the calculator will provide the equivalent BTU/hr output.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 33,475?
A: This is the standardized value defining one boiler horsepower in terms of BTU output per hour.

Q2: How does boiler HP differ from mechanical HP?
A: Boiler HP measures steam production capacity, while mechanical HP measures work output. 1 BHP ≈ 1.3 mechanical HP.

Q3: What's a typical BHP rating for residential boilers?
A: Most homes use boilers between 1-5 BHP (33,475-167,375 BTU/hr).

Q4: Can I convert BTU/hr back to BHP?
A: Yes, divide BTU/hr by 33,475 to get BHP.

Q5: Does this account for boiler efficiency?
A: No, this is theoretical maximum output. Actual output depends on boiler efficiency (typically 80-95%).