1. What is a Radiator Size Calculator?

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 — Standard heat requirement (BTU/hour per m²)
• 3412 — Conversion factor (BTU to kW)

Explanation: The formula converts the standard British Thermal Unit (BTU) heating requirement to kilowatts for radiator sizing.

3. Importance of Proper Radiator Sizing

Details: Correct radiator sizing ensures efficient heating, energy savings, and comfortable room temperatures without oversizing.

4. Using the Calculator

Tips: Simply enter the room area in square meters. The calculator assumes standard heating requirements (44.6 BTU/h/m²).

5. Frequently Asked Questions (FAQ)

Q1: What if my room has special characteristics?
A: Adjustments may be needed for rooms with high ceilings, poor insulation, or many windows. Consult a heating professional.

Q2: Is 44.6 BTU/h/m² suitable for all climates?
A: This is a general value for moderate climates. Colder regions may require higher values (50-60 BTU/h/m²).

Q3: How accurate is this calculation?
A: It provides a good estimate for standard rooms. For precise calculations, consider all heat loss factors.

Q4: Can I use this for underfloor heating?
A: No, underfloor heating requires different calculations as it distributes heat differently.

Q5: What about room height?
A: Standard calculation assumes 2.4-2.7m ceilings. For higher ceilings, multiply the result by (actual height/2.5).