1. What is a kW to BTU Calculator for Heating Systems?

Definition: This calculator converts heating power from kilowatts (kW) to British Thermal Units per hour (BTU/h).

Purpose: It helps HVAC professionals and engineers convert between these common units of heating power measurement.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Heating power in BTU/h
• \( P \) — Heating power in kW

Explanation: 1 kW is equivalent to 3412 BTU/h, based on the International Table BTU definition.

3. Importance of Power Unit Conversion

Details: Proper unit conversion ensures accurate system sizing, equipment selection, and energy calculations for heating systems.

4. Using the Calculator

Tips: Simply enter the heating power in kilowatts (kW). The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why 3412 specifically?
A: This is the exact conversion factor based on the International Table BTU definition (1 BTU = 1055.05585262 joules).

Q2: Does this work for cooling systems too?
A: Yes, the same conversion applies to cooling power measurements.

Q3: How precise is this conversion?
A: Very precise for engineering calculations, though different BTU definitions exist (e.g., thermochemical BTU is 3414).

Q4: When would I need this conversion?
A: When comparing equipment specs (often in BTU) with load calculations (often in kW), or working with mixed-unit documentation.

Q5: What's a typical residential furnace output?
A: About 40,000-120,000 BTU/h (12-35 kW) for most homes.