1. What is Watt to BTU Conversion?

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 output (BTU/h), commonly used in heating and cooling applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Thermal energy in BTU per hour
• \( P \) — Electrical power in watts
• \( 3.412 \) — Conversion factor (BTU/h per watt)

Explanation: One watt of electrical power is equivalent to 3.412 BTU per hour of thermal energy.

3. Importance of Watt to BTU Conversion

Details: This conversion is essential when sizing heating or cooling equipment, comparing electrical devices with thermal output, or understanding energy efficiency.

4. Using the Calculator

Tips: Simply enter the power in watts to get the equivalent BTU/h. The input must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 3.412?
A: This comes from the definition of BTU (the amount of energy needed to heat 1 pound of water by 1°F) and the relationship between energy units.

Q2: Is this conversion exact?
A: Yes, the 3.412 factor is a defined conversion constant, though real-world efficiency may vary based on device performance.

Q3: Can I convert BTU/h back to watts?
A: Yes, divide BTU/h by 3.412 to get watts.

Q4: What's a typical wattage for household appliances?
A: For example, a 1500W space heater produces about 5,118 BTU/h (1500 × 3.412).

Q5: Does this account for efficiency losses?
A: No, this is a direct unit conversion. Actual thermal output may be less due to inefficiencies.