1. What is a Radiator Size Calculator?

Definition: This calculator estimates the required radiator size in kilowatts (kW) based on room volume.

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:

• \( kW \) — Required radiator size (kilowatts)
• \( V \) — Room volume (cubic meters)
• \( 0.044 \) — Standard conversion factor for well-insulated rooms

Explanation: The room volume is multiplied by a standard factor (0.044 kW/m³) to determine the radiator output needed to adequately heat the space.

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: Enter the room volume in cubic meters. The calculator will output the recommended radiator size in kilowatts.

5. Frequently Asked Questions (FAQ)

Q1: What if my room isn't well insulated?
A: For poorly insulated rooms, use a higher factor (0.06-0.08 kW/m³) in the calculation.

Q2: How do I calculate room volume?
A: Multiply room length × width × height in meters to get cubic meters.

Q3: Does this account for room type?
A: This is a general calculation. Bathrooms may need 10-20% more, while bedrooms may need slightly less.

Q4: What about multiple radiators in one room?
A: The calculation gives total kW needed - this can be divided among multiple radiators.

Q5: Does this work for all radiator types?
A: Yes, the kW rating is standard across panel, column, and towel radiators.