1. What is a Radiator to Room Size Calculator?

Definition: This calculator estimates the required radiator size (in kW) based on the area of the room to be heated.

Purpose: It helps homeowners and heating professionals determine the appropriate radiator output needed to effectively heat a given space.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Radiator size (kilowatts)
• \( A_{room} \) — Room area (square meters)

Explanation: The formula converts the room area into the required radiator output using standard heating requirements (44.6 BTU/hr per sq ft converted to kW).

3. Importance of Proper Radiator Sizing

Details: Correct radiator sizing ensures efficient heating, energy savings, and prevents underheating or overheating of spaces.

4. Using the Calculator

Tips: Simply enter the room area in square meters. The calculator will output the recommended radiator size in kilowatts.

5. Frequently Asked Questions (FAQ)

Q1: What does 44.6 represent in the formula?
A: This is the standard heating requirement in BTU/hr per square foot, converted to metric units.

Q2: Is this calculation accurate for all room types?
A: This provides a basic estimate. Rooms with high ceilings, poor insulation, or many windows may need adjustments.

Q3: Should I round up the radiator size?
A: Yes, it's generally recommended to round up to the nearest available radiator size for better heating performance.

Q4: How does room insulation affect the calculation?
A: Well-insulated rooms may require less heating, while poorly insulated rooms may need more. Consider adjusting the result accordingly.

Q5: Can I use this for whole-house calculations?
A: Yes, but calculate each room separately as heating requirements vary by room type and usage.