1. What is a Boiler Size Calculator?

Definition: This calculator estimates the required boiler size based on the area to be heated and the specific load factor.

Purpose: It helps heating engineers and homeowners determine the appropriate boiler capacity for efficient heating.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Size \) — Required boiler capacity (kW)
• \( Area \) — Area to be heated (square meters)
• \( Load\ Factor \) — Heating requirement per unit area (kW/m²)

Explanation: The area is multiplied by the load factor to determine the total heating capacity needed.

3. Importance of Proper Boiler Sizing

Details: Correct boiler sizing ensures energy efficiency, proper heating performance, and prevents equipment overloading.

4. Using the Calculator

Tips: Enter the area in square meters and load factor (default 0.1 kW/m² for typical residential buildings). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical load factor for homes?
A: For well-insulated homes, 0.1 kW/m² is common. Older buildings may need 0.15-0.2 kW/m².

Q2: How do I measure the area accurately?
A: Measure the floor area of all rooms to be heated, excluding non-living spaces like closets.

Q3: When would I need a higher load factor?
A: In colder climates, poorly insulated buildings, or spaces with high ceilings (above 2.7m).

Q4: Does this include hot water requirements?
A: No, this calculates space heating only. Add 3-5 kW for domestic hot water if needed.

Q5: Should I round up the calculated size?
A: Yes, round up to the nearest standard boiler size available from manufacturers.