1. What is a Heating Radiator Size Calculator?

Definition: This calculator estimates the required radiator power in kilowatts based on room area.

Purpose: It helps homeowners and heating professionals determine the appropriate radiator size for efficient room heating.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Radiator power (kilowatts)
• \( A_{room} \) — Room area (square meters)

Explanation: The formula converts the British Thermal Unit (BTU) requirement (44.6 BTU per square foot) to kilowatts for a given room area.

3. Importance of Proper Radiator Sizing

Details: Correct radiator sizing ensures efficient heating, energy savings, and prevents under- or over-heating of spaces.

4. Using the Calculator

Tips: Simply enter the room area in square meters. The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: Why 44.6 in the formula?
A: This represents the standard BTU requirement per square foot (converted to metric in the calculation).

Q2: Is this calculation accurate for all rooms?
A: This provides a basic estimate. Factors like insulation, window size, and ceiling height may require adjustments.

Q3: What's the conversion factor from BTU to kW?
A: The divisor 3412 converts BTU to kilowatts (1 kW = 3412 BTU/h).

Q4: Should I round up the result?
A: It's generally recommended to round up to the nearest available radiator size.

Q5: Does this account for room insulation?
A: No, for poorly insulated rooms, you may need to increase the calculated value by 10-20%.