1. What is an Oil Boiler Size Calculator?

Definition: This calculator estimates the required boiler size in kilowatts (kW) based on the heat output in BTU/h.

Purpose: It helps HVAC professionals and homeowners determine the appropriate boiler size for heating systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Boiler size (kilowatts)
• \( Q_{btu} \) — Heat output (BTU per hour)

Explanation: The heat output in BTU/h is converted to kilowatts using the conversion factor of 3412 BTU/h per kW.

3. Importance of Proper Boiler Sizing

Details: Correct boiler sizing ensures efficient operation, prevents energy waste, and maintains optimal comfort levels.

4. Using the Calculator

Tips: Enter the heat output in BTU/h. The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the significance of 3412 in the formula?
A: This is the conversion factor between BTU/h and kW (1 kW = 3412.142 BTU/h).

Q2: How do I determine my heat output requirement?
A: Heat output depends on factors like building size, insulation, climate, and desired temperature.

Q3: Should I round up the boiler size?
A: It's common practice to round up to the nearest standard boiler size for safety margins.

Q4: Does this calculator work for gas boilers too?
A: Yes, the formula applies to any boiler type when converting BTU/h to kW.

Q5: What's a typical range for residential boilers?
A: Most homes require boilers between 15-30 kW (50,000-100,000 BTU/h).