1. What is Watts to BTUs Conversion?

The Watts to BTUs conversion calculates the equivalent power in British Thermal Units per hour (BTU/hr) from a given value in watts (W). This is commonly used in heating, ventilation, and air conditioning (HVAC) systems and energy calculations.

2. How Does the Conversion Work?

The conversion uses the following formula:

Where:

• \( BTU/hr \) — British Thermal Units 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 is derived from the exact relationship between the two units.

3. Practical Applications

Details: This conversion is essential when comparing electrical heating systems (rated in watts) with gas or other fuel-based systems (typically rated in BTUs).

4. Using the Calculator

Tips: Simply enter the wattage value you want to convert. The calculator will automatically compute the equivalent BTU/hr value.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 3.412142?
A: This exact value comes from the definition of BTU as the amount of energy needed to heat 1 pound of water by 1°F, and watt as 1 joule per second.

Q2: Can I convert BTUs back to watts?
A: Yes, divide the BTU/hr value by 3.412142 to get watts.

Q3: Is this conversion used worldwide?
A: Primarily in countries using imperial units (like the US). Most other countries use watts exclusively.

Q4: How accurate is this conversion?
A: It's an exact mathematical conversion, so it's perfectly accurate for calculations.

Q5: What about BTU/hr to tons of refrigeration?
A: 1 ton of refrigeration = 12,000 BTU/hr = 3,516.8525 watts