1. What is an Existing Radiator Output Calculator?

Definition: This calculator estimates the heat output of an existing radiator based on its dimensions, height factor, and temperature difference.

Purpose: It helps HVAC professionals and homeowners determine the heat output capacity of radiators for heating system analysis and upgrades.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Output \) — Heat output (BTU or kW)
• \( Length \) — Radiator length (ft or m)
• \( Width \) — Radiator width (ft or m)
• \( Height\ Factor \) — Dimensionless factor based on radiator height
• \( Delta\ T \) — Temperature difference between radiator and room (°F or °C)

Explanation: The physical dimensions are multiplied by a height adjustment factor and the temperature difference to calculate heat output.

3. Importance of Radiator Output Calculation

Details: Accurate output calculation ensures proper heating system performance, energy efficiency, and comfort in the space being heated.

4. Using the Calculator

Tips: Enter the radiator length and width, height factor (default 1.0), and temperature difference. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is Delta T in radiator calculations?
A: Delta T is the temperature difference between the radiator surface and the room air temperature.

Q2: How do I determine the height factor?
A: The height factor typically ranges from 0.9 for short radiators to 1.2 for tall radiators, with 1.0 being standard height.

Q3: Can I use metric or imperial units?
A: Yes, but be consistent - use either all metric (m, °C) or all imperial (ft, °F) units.

Q4: Does this work for all radiator types?
A: This works best for standard panel radiators. Specialty radiators may need specific manufacturer data.

Q5: How accurate is this calculation?
A: It provides a good estimate, but actual output may vary based on material, design, and installation conditions.