Watt to BTU Conversion

Conversion Formula:

\[ \text{BTU/hr} = \text{W} \times 3.412142 \]

BTU per hour:

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1. What is Watt to BTU Conversion?

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

2. How Does the Calculator Work?

The calculator uses the conversion formula:

\[ \text{BTU/hr} = \text{W} \times 3.412142 \]

Where:

\( \text{BTU/hr} \) — British Thermal Units per hour
\( \text{W} \) — 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. Importance of Power Conversion

Details: Converting between watts and BTU/hr is essential for comparing power ratings of electrical equipment with thermal output of heating systems, sizing HVAC 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: What is a BTU?
A: A British Thermal Unit (BTU) is the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

Q2: Why convert watts to BTU/hr?
A: This conversion is useful when comparing electrical power (watts) with thermal output (BTU/hr), especially in heating and cooling applications.

Q3: How accurate is this conversion?
A: The conversion factor 3.412142 is exact, so the calculation is mathematically precise.

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

Q5: What's a typical BTU/hr rating for air conditioners?
A: Residential window units typically range from 5,000 to 12,000 BTU/hr (about 1,465 to 3,517 watts).