1. What is a Gas Fire kW Calculator?

Definition: This calculator converts the heat output of a gas fire from BTU/h to kilowatts (kW).

Purpose: It helps HVAC professionals and homeowners understand the power output of gas appliances in different measurement units.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Power output in kilowatts
• \( Q_{btu} \) — Heat output in BTU per hour

Explanation: The conversion factor 3412 represents the number of BTU per hour equivalent to 1 kW of power.

3. Importance of kW Conversion

Details: Converting BTU/h to kW helps in comparing gas appliances with electrical systems and ensures proper sizing of heating equipment.

4. Using the Calculator

Tips: Enter the heat output in BTU/h (typically found on the appliance rating plate). The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why convert BTU/h to kW?
A: kW is the standard unit in many countries and makes it easier to compare different heating systems.

Q2: What's the conversion factor 3412?
A: It's the exact conversion (1 kW = 3412.142 BTU/h) based on the International Table BTU.

Q3: Where do I find the BTU rating?
A: Check the appliance nameplate, manual, or manufacturer specifications.

Q4: How accurate is this conversion?
A: It's mathematically exact, but actual appliance performance may vary slightly.

Q5: Can I convert kW back to BTU?
A: Yes, multiply kW by 3412 to get BTU/h.