1. What is an Electric Radiator Sizing Calculator?

Definition: This calculator converts heat output in BTU/h to the required electric radiator power in kilowatts.

Purpose: It helps HVAC professionals and homeowners determine the appropriate size of electric radiators for heating needs.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

Explanation: The formula converts British Thermal Units per hour to kilowatts using the conversion factor 3412 BTU/h = 1 kW.

3. Importance of Proper Radiator Sizing

Details: Correct sizing ensures efficient heating, prevents energy waste, and maintains comfortable temperatures.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What is the 3412 conversion factor?
A: It's the exact conversion between BTU/h and kW (1 kW = 3412.142 BTU/h).

Q2: How do I determine my required heat output?
A: Calculate heat loss for your space considering insulation, room size, and climate.

Q3: Should I add a safety factor?
A: Typically add 10-20% to the calculated power for extreme conditions.

Q4: Can I use this for other electric heaters?
A: Yes, this applies to any electric heating element converting power to heat.

Q5: What's the typical range for residential radiators?
A: Most residential electric radiators range from 0.5 kW to 3 kW.