1. What is a Radiator Calculator by Heat Loss?

Definition: This calculator determines how many radiators are needed based on a room's heat loss and the output of each radiator.

Purpose: It helps homeowners and heating professionals properly size radiator installations for efficient room heating.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( N \) — Number of radiators needed (rounded up)
• \( H \) — Room heat loss (Watts)
• \( O \) — Output per radiator (Watts)

Explanation: The room's total heat loss is divided by each radiator's output to determine how many are needed, always rounding up to ensure sufficient heating.

3. Importance of Proper Radiator Sizing

Details: Correct radiator sizing ensures comfortable room temperatures, energy efficiency, and prevents underheating or overheating.

4. Using the Calculator

Tips: Enter the room's heat loss in Watts and the output per radiator (default 1000W). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I find my room's heat loss?
A: Use a heat loss calculator or consult a heating professional. Typical values range from 50-150W per m² depending on insulation.

Q2: What's a typical radiator output?
A: Standard radiators range from 600W to 2000W output. Check manufacturer specifications for your specific radiator model.

Q3: Why round up the number of radiators?
A: Rounding up ensures you have enough heating capacity to compensate for heat loss, especially in very cold weather.

Q4: Can I use multiple smaller radiators instead?
A: Yes, you can distribute the total output across multiple smaller radiators for more even heating.

Q5: Should I add extra capacity?
A: Consider adding 10-20% extra capacity if the room has large windows, poor insulation, or is in a very cold climate.