Home Back

Central Heating Radiator Output Calculator

Radiator Output Formula:

\[ P_{kW} = \frac{Q_{btu}}{3412} \]

BTU/h

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is a Central Heating Radiator Output Calculator?

Definition: This calculator converts the heat output of a radiator from British Thermal Units per hour (BTU/h) to kilowatts (kW).

Purpose: It helps HVAC professionals and homeowners determine the power output of heating radiators in different measurement units.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ P_{kW} = \frac{Q_{btu}}{3412} \]

Where:

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

3. Importance of Radiator Output Calculation

Details: Proper radiator output estimation ensures efficient heating system design, energy efficiency, and comfortable indoor temperatures.

4. Using the Calculator

Tips: Enter the radiator's heat output in BTU/h. The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: Why convert BTU/h to kW?
A: kW is the standard unit for radiator specifications in many countries, while BTU/h is commonly used in others. Conversion allows for comparison and system design.

Q2: What's a typical radiator output?
A: Residential radiators typically range from 500-3000 BTU/h (0.15-0.88 kW), while commercial units can be much higher.

Q3: How accurate is this conversion?
A: The conversion factor 3412 BTU/h = 1 kW is a standard, precise conversion with no rounding.

Q4: Where do I find my radiator's BTU/h rating?
A: Check the manufacturer's specifications, product manual, or nameplate on the radiator.

Q5: Can I convert kW back to BTU/h?
A: Yes, multiply kW by 3412 to get BTU/h (Q_btu = P_kW × 3412).

Central Heating Radiator Output Calculator© - All Rights Reserved 2025