1. What is a Radiator BTU Output Calculator?

Definition: This calculator converts the power rating of a radiator from kilowatts (kW) to British Thermal Units per hour (BTU/h).

Purpose: It helps HVAC professionals and homeowners determine the heating capacity of radiators in BTU/h, which is a common measurement for heating systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

Explanation: 1 kW of power is equivalent to 3412 BTU/h. This conversion factor comes from the relationship between the two units of power measurement.

3. Importance of BTU Output Calculation

Details: Knowing the BTU output helps in properly sizing radiators for rooms, ensuring efficient heating and energy usage.

4. Using the Calculator

Tips: Simply enter the radiator's power rating in kilowatts (kW). The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: Why convert kW to BTU/h?
A: While kW is common in specifications, BTU/h is often used for practical heating requirements and comparisons.

Q2: Is 3412 always the conversion factor?
A: Yes, this is the standard conversion (1 kW = 3412.142 BTU/h) based on the International Steam Table BTU.

Q3: How do I find my radiator's kW rating?
A: Check the manufacturer's specifications, usually found on the radiator's label or product documentation.

Q4: Does this account for radiator efficiency?
A: No, this calculates theoretical output. Actual heat output may vary based on radiator type and conditions.

Q5: What's a typical BTU requirement for a room?
A: As a rough guide, you need about 20 BTU per square foot of living space, but this varies by climate and insulation.