1. What is Propane Line Size Calculator?

The Propane Line Size Calculator determines the appropriate pipe diameter for propane gas lines based on BTU load and pipe length. Proper sizing ensures adequate gas flow and pressure for appliances.

2. How Does the Calculator Work?

The calculator uses standard propane line sizing tables:

Where:

• \( BTU/hr \) — Total BTU load of all appliances
• \( Length \) — Total pipe run length in feet
• Line Size — Recommended pipe diameter in inches

Explanation: The calculation considers pressure drop, flow rate, and pipe capacity to ensure proper appliance operation.

3. Importance of Proper Line Sizing

Details: Correct propane line sizing prevents pressure drops, ensures appliance efficiency, and maintains safety standards. Undersized lines can cause appliance malfunction and safety hazards.

4. Using the Calculator

Tips: Enter total BTU load of all connected appliances and the longest pipe run length. Always consult local codes and a professional for final installation.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect propane line sizing?
A: BTU load, pipe length, number of fittings, elevation changes, and required pressure at appliances.

Q2: How do I calculate total BTU load?
A: Sum the BTU ratings of all propane appliances (furnace, water heater, stove, etc.) that will operate simultaneously.

Q3: What pressure is used for residential propane?
A: Typically 11 inches WC (water column) for residential applications, though some systems may use 2 PSI.

Q4: Can I use this for natural gas?
A: No, natural gas has different energy content and requires different sizing calculations.

Q5: Should I add safety margin?
A: Yes, it's recommended to add 10-20% capacity margin for future additions and optimal performance.