1. What is an Electric Radiator Room Size Calculator?

Definition: This calculator estimates the required electric radiator power based on room area.

Purpose: It helps homeowners and 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/hr to kW

Explanation: The formula converts standard heating requirements from BTU to kW based on room area.

3. Importance of Proper Radiator Sizing

Details: Correct radiator sizing ensures efficient heating, energy savings, and comfortable room temperatures.

4. Using the Calculator

Tips: Enter the room area in square meters. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why 44.6 BTU/hr per m²?
A: This is a standard heating requirement for moderately insulated rooms in temperate climates.

Q2: Should I adjust for room insulation?
A: Yes, for poorly insulated rooms, consider increasing the result by 10-20%. For well-insulated rooms, decrease by 10%.

Q3: What about room height?
A: This calculation assumes standard ceiling heights (2.4-2.7m). For higher ceilings, multiply the result by (your ceiling height/2.5).

Q4: Does this account for windows?
A: The standard calculation includes average window coverage. For rooms with large windows, add 10-15% to the result.

Q5: How does this work for multiple radiators?
A: Divide the total kW by the number of radiators to get individual radiator sizes.