1. What is a Radiator Heat Output Calculator?

Definition: This calculator converts radiator heat output from BTU/h (British Thermal Units per hour) to kilowatts (kW), the standard unit used in the UK.

Purpose: It helps homeowners and heating engineers compare radiator specifications and ensure proper heating system sizing.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Power in kilowatts (kW)
• \( Q_{btu} \) — Heat output in British Thermal Units per hour (BTU/h)
• 3412 — Conversion factor (BTU/h to kW)

Explanation: 1 kW is equivalent to 3412 BTU/h, so dividing BTU/h by this factor gives the equivalent power in kW.

3. Importance of Heat Output Calculation

Details: Proper radiator sizing ensures efficient heating, prevents energy waste, and maintains comfortable room temperatures in UK homes.

4. Using the Calculator

Tips: Enter the radiator's heat output in BTU/h (found in product specifications). The calculator will instantly show the equivalent in kW.

5. Frequently Asked Questions (FAQ)

Q1: Why convert BTU/h to kW?
A: In the UK, heating systems are typically specified in kW, while some radiators may be rated in BTU/h.

Q2: What's a typical radiator output?
A: Standard radiators range from 600-10,000 BTU/h (0.18-2.93 kW), depending on size and type.

Q3: How do I find my radiator's BTU/h rating?
A: Check manufacturer specifications or use a BTU calculator based on room dimensions.

Q4: Is this conversion exact?
A: Yes, 1 kW is exactly 3412.142 BTU/h by definition.

Q5: Should I round up the kW value?
A: For radiator sizing, it's common to round up to ensure adequate heating capacity.