1. What is a Radiator to Room Size Calculator?

Definition: This calculator estimates the required radiator power (in kW) based on the volume of the room in cubic meters.

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 power output (kilowatts)
• \( V \) — Room volume (cubic meters)
• \( 0.044 \) — Standard conversion factor for typical insulation

Explanation: The room volume is multiplied by a standard factor (0.044 kW/m³) to calculate the required radiator power.

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 volume in cubic meters. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What does the 0.044 factor represent?
A: This is a standard value representing the kW needed per cubic meter for a room with average insulation.

Q2: Should I adjust the factor for different insulation?
A: Yes - use 0.035 for well-insulated rooms, 0.05 for poorly insulated, or 0.06 for rooms with large windows.

Q3: How do I calculate room volume?
A: Multiply room length × width × height (all in meters).

Q4: Does this account for heat loss?
A: The standard factor includes typical heat loss, but extreme conditions may require adjustment.

Q5: What about multiple radiators in one room?
A: The calculation gives the total kW needed - you can split this between multiple radiators.