1. What is a Radiator Size Calculator?

Definition: This calculator estimates the required radiator output (in kW) based on room volume to ensure adequate heating.

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:

• \( kW \) — Radiator output (kilowatts)
• \( \text{Room Volume} \) — Volume of the room in cubic meters
• \( 0.044 \) — Standard factor for well-insulated rooms

Explanation: The room volume is multiplied by a standard factor (0.044 kW per m³) to determine the required radiator output.

3. Importance of Proper Radiator Sizing

Details: Correct radiator sizing ensures efficient heating, prevents energy waste, and maintains comfortable room temperatures.

4. Using the Calculator

Tips: Simply enter the room volume in cubic meters. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What if my room isn't well insulated?
A: For poorly insulated rooms, use a higher factor (0.05-0.06 kW/m³) in the calculation.

Q2: How do I calculate room volume?
A: Multiply room length × width × height (all in meters).

Q3: Does this account for windows?
A: The standard factor assumes normal conditions. Add 10% for large windows.

Q4: What about room orientation?
A: North-facing rooms may need 10-15% more output than calculated.

Q5: Is this suitable for all radiator types?
A: Yes, the calculation works for panel, column, and towel radiators.