1. What is BTU to kW Conversion?

Definition: This calculator converts power measurements from British Thermal Units per hour (BTU/h) to kilowatts (kW).

Purpose: It helps engineers, HVAC professionals, and energy analysts convert between these common power units.

2. How Does the Conversion Work?

The conversion uses the formula:

Where:

• \( P_{kW} \) — Power in kilowatts (kW)
• \( Q_{btu} \) — Power in British Thermal Units per hour (BTU/h)

Explanation: 1 kW is equivalent to 3412 BTU/h, so we divide the BTU/h value by 3412 to get the equivalent kW value.

3. Importance of Power Unit Conversion

Details: Accurate conversion between these units is essential for equipment sizing, energy calculations, and comparing specifications that use different measurement systems.

4. Using the Calculator

Tips: Simply enter the BTU/h value you want to convert. The result will show the equivalent power in kilowatts.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 3412?
A: This comes from the definition that 1 kW = 3412.142 BTU/h, based on the International Table BTU definition.

Q2: When would I need this conversion?
A: Common applications include HVAC system specifications, generator ratings, and boiler capacity conversions.

Q3: How accurate is this conversion?
A: The conversion is mathematically exact for the International Table BTU. Other BTU definitions may vary slightly.

Q4: Can I convert kW back to BTU/h?
A: Yes, simply multiply kW by 3412 to get BTU/h.

Q5: What's a typical BTU/h value for home air conditioners?
A: Residential AC units typically range from 5,000 BTU/h (1.5 kW) to 36,000 BTU/h (10.5 kW).