1. What is a Radiator Size Calculator?

Definition: This calculator determines the required radiator size in kilowatts based on the heating load in BTU/h.

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

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Radiator size (kilowatts)
• \( Q_{btu} \) — Heating load (BTU per hour)

Explanation: The formula converts BTU/h to kilowatts using the conversion factor of 3412 BTU/h per kW.

3. Importance of Proper Radiator Sizing

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

4. Using the Calculator

Tips: Enter the heating load in BTU/h. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why convert BTU/h to kW for radiators?
A: Many radiator specifications use kW ratings, while heating loads are often calculated in BTU/h.

Q2: What's the conversion factor 3412?
A: 1 kW = 3412.142 BTU/h - this is the standard conversion between these units.

Q3: Should I round up the radiator size?
A: Yes, it's common practice to round up to the nearest available radiator size for safety margin.

Q4: How do I find my heating load in BTU/h?
A: Use a heat loss calculation considering room size, insulation, windows, and climate.

Q5: Does this account for different radiator types?
A: No, this provides the basic thermal output needed. Actual radiator selection should consider type and placement.