1. What is a Watt to BTU Calculator?

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

Purpose: It helps in comparing electrical power (watts) with thermal energy (BTU) for heating/cooling applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( BTU \) — British Thermal Units per hour
• \( W \) — Power in watts

Explanation: 1 watt equals approximately 3.412 BTU per hour. This conversion factor comes from the exact definition of BTU.

3. Importance of Watt to BTU Conversion

Details: This conversion is essential when comparing electrical heating systems with gas systems, or when sizing air conditioners and heaters.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What exactly is a BTU?
A: A British Thermal Unit is the amount of heat required to raise 1 pound of water by 1°F.

Q2: Why 3.412 as the conversion factor?
A: This exact value comes from the definition: 1 watt = 3.41214 BTU/h (commonly rounded to 3.412).

Q3: Is this BTU/h or just BTU?
A: The result is in BTU per hour (BTU/h), as watts are a rate of energy transfer per second.

Q4: Can I convert BTU back to watts?
A: Yes, divide BTU by 3.412 to get watts. W = BTU ÷ 3.412.

Q5: Does this work for air conditioner ratings?
A: Yes, many air conditioners are rated in BTU/h for cooling capacity, while their electrical consumption is in watts.