1. What is a Radiator BTU Size Calculator?

Definition: This calculator converts radiator power in kilowatts (kW) to British Thermal Units per hour (BTU/h), the standard measurement for radiator sizing in the UK.

Purpose: It helps homeowners and heating engineers determine the appropriate radiator size for UK homes based on the kW rating.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q_{btu} \) — Heat output in British Thermal Units per hour
• \( P_{kW} \) — Radiator power in kilowatts

Explanation: 1 kW of power is equivalent to 3412 BTU/h, as this is the standard conversion factor for heating systems.

3. Importance of Correct BTU Calculation

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

4. Using the Calculator

Tips: Simply enter the radiator's kW rating (found on product specifications) to get the equivalent BTU/h output.

5. Frequently Asked Questions (FAQ)

Q1: Why is BTU important for UK radiators?
A: BTU measurements help determine if a radiator can adequately heat a room based on its size and insulation.

Q2: What's a typical kW to BTU conversion for UK radiators?
A: The standard is 1kW = 3412 BTU/h, which this calculator uses.

Q3: How do I find my radiator's kW rating?
A: Check the product specifications, manual, or manufacturer's website for your radiator model.

Q4: Should I round up the BTU result?
A: Yes, it's common practice to round up to the nearest 50 or 100 BTU when selecting radiators.

Q5: Does this account for room size or insulation?
A: No, this is a basic conversion. For complete radiator sizing, consider room dimensions, windows, and insulation quality.