1. What is a Watts 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 with thermal output, commonly used in heating and cooling applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Thermal output in BTU/h
• \( P \) — Electrical power in watts

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

3. Importance of Watts to BTU Conversion

Details: This conversion is essential when sizing heating or cooling equipment, comparing electrical appliances to fuel-based systems, or calculating energy efficiency.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 3.412?
A: This is the exact conversion factor between watts and BTU/h, based on the International Table BTU definition.

Q2: Can I convert BTU/h back to watts?
A: Yes, divide BTU/h by 3.412 to get watts.

Q3: Does this account for efficiency losses?
A: No, this is a direct conversion. Actual thermal output may vary based on device efficiency.

Q4: Is this conversion used for air conditioners?
A: Yes, air conditioner capacities are often rated in BTU/h while their electrical consumption is in watts.

Q5: What's the difference between BTU and BTU/h?
A: BTU measures energy, while BTU/h measures power (energy per time).