1. What is Watts to BTU Conversion?

The conversion between watts and British Thermal Units per hour (BTU/hr) is essential for comparing power measurements between electrical and thermal systems. This conversion is commonly used in HVAC, energy efficiency calculations, and equipment specifications.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• \( Q \) — Power in BTU per hour
• \( W \) — Power in watts
• 3.412142 — Conversion factor (exact value)

Explanation: One watt is equal to 3.412142 BTU per hour. This conversion factor comes from the definition of BTU and the relationship between different units of power.

3. Importance of Power Conversion

Details: Converting between watts and BTU/hr is crucial when working with systems that use different measurement standards, such as comparing electrical cooling systems (rated in watts) with thermal systems (rated in BTU/hr).

4. Using the Calculator

Tips: Enter the power value in watts. The calculator will automatically compute the equivalent value in BTU per hour. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 3.412142?
A: This exact value comes from the definition of 1 BTU as 1055.05585262 joules and 1 watt as 1 joule per second.

Q2: How accurate is this conversion?
A: The conversion is mathematically exact, using the standard definitions of the units.

Q3: When would I need this conversion?
A: Common uses include sizing air conditioners, comparing heating systems, and energy efficiency calculations.

Q4: Can I convert BTU/hr back to watts?
A: Yes, divide the BTU/hr value by 3.412142 to get watts.

Q5: Is this conversion affected by temperature?
A: No, this is a direct power conversion independent of temperature.