1. What is a Radiator Size Calculator?

Definition: This calculator determines the required radiator size based on the room's heat requirement and the radiator's specific output.

Purpose: It helps homeowners and heating professionals select properly sized radiators for efficient room heating.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Size \) — Radiator size (square meters)
• \( Q \) — Heat requirement (Watts)
• \( Specific\ Output \) — Radiator's heat output per square meter (W/m²)

Explanation: The heat requirement is divided by the radiator's specific output to determine the needed surface area.

3. Importance of Proper Radiator Sizing

Details: Correct sizing ensures efficient heating, energy savings, and prevents under- or over-heating of spaces.

4. Using the Calculator

Tips: Enter the room's heat requirement in Watts and the radiator's specific output (default 100 W/m²). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I find my room's heat requirement?
A: Use a heat loss calculator or consult with a heating professional. As a rough estimate, multiply room volume by 30-40 W/m³.

Q2: What's a typical specific output value?
A: Standard radiators output about 100 W/m², but this varies by type (e.g., panel radiators ~80 W/m², compact radiators ~160 W/m²).

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

Q4: Does this account for room insulation?
A: No, the heat requirement should already account for insulation quality when calculated.

Q5: Can I use this for different radiator types?
A: Yes, but ensure you use the correct specific output value for your radiator type.