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 specialists convert between these common power units.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Power in kilowatts (kW)
• \( Q_{btu} \) — Power in British Thermal Units per hour (BTU/h)
• 3412 — Conversion factor (1 kW = 3412 BTU/h)

Explanation: The BTU/h value is divided by 3412 to convert to the equivalent power in kilowatts.

3. Importance of Power Unit Conversion

Details: Accurate conversion between units is essential for equipment specification, energy calculations, and system design in heating, cooling, and power applications.

4. Using the Calculator

Tips: Simply enter the BTU/h value (must be > 0) and the calculator will provide 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 equals 3412.142 BTU/h based on the International Table BTU definition.

Q2: How accurate is this conversion?
A: The conversion is precise for most engineering applications, using the standard International Table BTU.

Q3: When would I need this conversion?
A: Common uses include sizing HVAC equipment, comparing energy efficiency ratings, and converting boiler capacities.

Q4: Can I convert kW back to BTU/h?
A: Yes, simply multiply kW by 3412 to get BTU/h (inverse of this calculation).

Q5: Does this work for both heating and cooling capacities?
A: Yes, the conversion applies equally to heating and cooling power measurements.