1. What is Watts to BTU Conversion?

The Watts to BTU conversion is used to convert electrical power (in watts) to thermal energy (in British Thermal Units per hour). This is particularly useful in heating and cooling applications where you need to compare electrical power with thermal output.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• \( \text{Watts} \) — Electrical power in watts (W)
• \( 3.41214 \) — Conversion factor (1 W = 3.41214 BTU/hr)

Explanation: This conversion factor comes from the definition of BTU and watt, where 1 watt is equal to 3.41214 BTU per hour.

3. Importance of Power Conversion

Details: Converting between watts and BTU/hr is essential for comparing electrical systems with thermal systems, sizing heating and cooling equipment, and energy efficiency calculations.

4. Using the Calculator

Tips: Enter the power value in watts (must be a positive number). The calculator will automatically compute the equivalent BTU/hr value.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 3.41214?
A: This comes from the definition that 1 watt = 1 joule/second and 1 BTU = 1055.06 joules, with the hour conversion (3600 seconds).

Q2: Is this conversion exact?
A: Yes, the conversion factor is based on standard definitions and is mathematically exact.

Q3: Can I convert BTU/hr back to watts?
A: Yes, divide BTU/hr by 3.41214 to get watts.

Q4: Does this conversion account for efficiency?
A: No, this is a direct unit conversion. Actual thermal output may vary based on system efficiency.

Q5: When would I need this conversion?
A: Common uses include sizing electric heaters, comparing air conditioner capacities, and energy efficiency calculations.