Optimize Your Heater: Orifice Exchange Kits for Fuel & Altitude

An orifice exchange kit is a component that allows you to change the fuel type used by a catalytic heater or derate the heater for use at high altitudes. This small but essential part controls the fuel input and ensures the heater operates at its best efficiency.

By swapping the orifice, you can fine-tune the heater’s performance to match your specific needs, whether that means adjusting for altitude or switching between natural gas and propane.

Why Would Someone Use an Orifice Exchange Kit?

• Switching Fuel Types – Different fuels require different orifice sizes for proper combustion.
• Adapting to Environmental Conditions – Adjusts performance for high-altitude locations or extreme cold.
• Improving Fuel Efficiency – Prevents wasted fuel and maximizes heat output.

Fuel Types & Their Corresponding Orifices

The orifice size must match the fuel type to ensure proper combustion and efficiency:

Natural Gas

• Requires a larger orifice due to its lower energy density.
• Burns at a lower temperature compared to propane.
• Ideal for low-altitude applications where oxygen levels are higher.

Propane

• Uses a smaller orifice since it burns hotter and requires less fuel flow.
• More energy-dense than natural gas.
• Commonly used in high-altitude or cold-weather environments.

Altitude Adjustments & Orifice Selection

At higher altitudes, air pressure and oxygen levels decrease, requiring orifice adjustments to maintain optimal combustion.

Low Altitude (0 – 2,000 ft)

• Standard orifice sizes for both natural gas and propane.

Medium Altitude (2,000 – 5,000 ft)

• Slight reduction in fuel flow may be needed to compensate for thinner air.
• Adjust orifice size if combustion becomes inefficient.

High Altitude (5,000+ ft)

• Use a smaller orifice to prevent excess fuel from being burned inefficiently.
• Helps maintain heater performance in oxygen-depleted environments.

✅ If you need help selecting the right orifice for your location, give us a call! Provide your area details, and we’ll ensure you get the correct one for optimal performance.

What Are the Benefits of Switching Out an Orifice?

• ✅ Fuel Flexibility – Easily switch between natural gas and propane.
• ✅ Location Flexibility – Use your heater wherever you need heat.
• ✅ Quick and Easy Installation – Orifice swaps take minutes with minimal tools.
• ✅ Cost-Effective Upgrade – No need to replace the entire heater—just change the orifice.

Upgrade Your Heater Today

For more details on how orifice exchange kits can improve your heater’s performance, watch our step-by-step video:

📺 Watch Now: Catco Orifice Exchange Kit Explained

🔗 Browse Orifice Exchange Kits Now: https://www.catcousa.com/orifice-exchange-kits