1. What is Watts to BTU/hr Conversion?

The Watts to BTU/hr conversion is used to translate electrical power (watts) to thermal power (BTU/hr), which is particularly important in HVAC systems where both electrical input and thermal output need to be compared.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• \( W \) — Power in watts
• \( 3.412142 \) — Conversion factor (1 watt = 3.412142 BTU/hr)

Explanation: This conversion factor comes from the definition of BTU (the amount of energy needed to heat 1 pound of water by 1°F) and the relationship between joules (watt-seconds) and BTUs.

3. Importance of Power Conversion in HVAC

Details: HVAC systems are often rated in both electrical input (watts) and thermal output (BTU/hr). This conversion helps compare efficiency (COP or EER) and size systems appropriately.

4. Using the Calculator

Tips: Enter power in watts (positive value only). The calculator will provide the equivalent in BTU per hour.

5. Frequently Asked Questions (FAQ)

Q1: Why is this conversion important for HVAC?
A: It allows comparison between electrical input and thermal output, helping to calculate system efficiency and capacity.

Q2: How accurate is this conversion?
A: The conversion factor is mathematically exact, though real-world systems may have efficiency factors to consider.

Q3: What's the difference between BTU and BTU/hr?
A: BTU measures energy, while BTU/hr measures power (energy per unit time).

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

Q5: Does this work for all power levels?
A: Yes, the conversion is linear and works for any positive power value.