1. What is a Radiator Calculator for Room Size?

Definition: This calculator estimates the required radiator power in kilowatts (kW) based on room area in square 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:

• \( P_{kW} \) — Radiator power (kilowatts)
• \( A_{room} \) — Room area (square meters)
• 44.6 — BTU per hour per square meter (standard heating requirement)
• 3412 — Conversion factor from BTU/h to kW

Explanation: The formula converts the standard heating requirement (44.6 BTU/h per m²) to kilowatts for the given room area.

3. Importance of Radiator Sizing

Details: Proper 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 result shows the recommended radiator power in kilowatts.

5. Frequently Asked Questions (FAQ)

Q1: What's the 44.6 value in the formula?
A: This represents the standard heating requirement of 44.6 BTU per hour per square meter for a typical room.

Q2: Should I adjust for room insulation?
A: Yes, for poorly insulated rooms, consider adding 10-20% to the calculated power. For well-insulated rooms, you might reduce by 10%.

Q3: Does this work for all room types?
A: This provides a baseline. Bathrooms may need 20% more power, while kitchens might need 10% less.

Q4: What about room height?
A: The standard calculation assumes 2.4-2.7m ceilings. For higher ceilings, multiply by (your ceiling height/2.5).

Q5: How accurate is this calculation?
A: It provides a good estimate but consider consulting a heating professional for precise calculations accounting for windows, insulation, etc.