Your dual fuel generator offers flexibility, but tapping into your home’s natural gas line unlocks a new level of convenience and reliability. Imagine a prolonged power outage where you never need to refuel a propane tank or hunt for gasoline. A natural gas conversion kit makes this possible, providing a virtually endless fuel supply for clean, steady power. This guide is for homeowners and DIY enthusiasts ready to upgrade their Champion, Predator, Honda, or Westinghouse generator. We have assessed the leading kits on the market to simplify your search.

Selecting the correct kit is crucial, as compatibility depends on your engine’s make, model, and displacement. A mismatched part can lead to poor performance or even damage. Whether you need a simple carburetor swap for a smaller engine or a comprehensive tri-fuel solution for a heavy-duty generator, our review covers the key options. For a broader look at options for different generator types, see our guide on the best natural gas conversion kits for portable generators.

Buying Guide: How to Choose Your Conversion Kit

Verify Engine Compatibility First

This is the most critical step. A kit must match your engine’s displacement in cubic centimeters (cc) and its specific model family. For example, a kit for a Honda GX160 is not compatible with a GX390. Always cross-reference the manufacturer’s listed compatible models with your generator’s manual. Kits like the HIPA 389cc 420cc Tri Dual Generator Carburetor clearly list a wide range of compatible engines, which simplifies the process.

Look beyond brand names to engine clones. Many generators use engines that are clones of popular Honda designs. A kit compatible with a Honda GX340 or GX390 will often work on equivalent Champion, Predator, or Generac models of the same displacement. Confirm the physical space in your generator’s compartment as well, as some carburetor assemblies may be larger than the original.

Understand Fuel Type Options: Dual vs. Tri-Fuel

Conversion kits offer different fuel capabilities. A standard dual-fuel kit typically allows switching between gasoline and propane (LPG). A tri-fuel kit adds natural gas (CNG) as a third option, which is the focus for most homeowners seeking a permanent hookup. The tri-fuel capability, as seen in the HIPA kit, provides maximum flexibility with a simple rotary switch.

Consider your primary use case. If you plan to permanently connect to a home natural gas line, a dedicated natural gas conversion like the Natural Gas Conversion Kit fits Westinghouse is a streamlined solution. For generators you might move or use with propane tanks remotely, a tri-fuel kit is more versatile. You can learn more about the benefits of multiple fuel sources in our overview of dual fuel generators.

Assess Installation Complexity and Included Components

Review what is included in the kit. A complete carburetor assembly with an air filter, gaskets, and spacer insulator makes for a straightforward swap. The AUTOKAY Dual Fuel Carburetor LPG NG Conversion Kit is a good example of a comprehensive package. Simpler kits may require you to reuse or purchase additional components separately.

Evaluate your comfort with mechanical projects. Most installations involve basic hand tools and replacing the existing carburetor, which is a common DIY task. However, connecting to a natural gas line requires proper fittings, a regulator, and potentially a licensed professional to ensure a safe, leak-free connection. Always follow all local codes and safety guidelines.

Prioritize Build Quality and Safety Features

The kit’s construction directly impacts reliability and safety. Look for components made from durable, heat-resistant materials. Key safety features include a positive OFF position on the fuel selector switch to prevent accidental gas flow and a manual choke for reliable cold-weather starting. This is especially important for generators used in cold weather.

A well-designed kit will maintain proper air-fuel mixture across different fuel types to ensure efficient combustion and protect your engine. Kits from established brands in the power equipment space often incorporate these refined designs. Investing in a quality kit from the start prevents performance issues and provides peace of mind during critical outages. For a complete category of options, visit our natural gas generators hub.

Final Thoughts

Upgrading your generator with a natural gas conversion is a smart investment for seamless home backup power. For most users seeking maximum flexibility, the HIPA 389cc 420cc Tri Dual Generator Carburetor stands out for its broad compatibility and tri-fuel capability. If you own a compatible Westinghouse model and want a dedicated, clean installation, the specialized Natural Gas Conversion Kit fits Westinghouse is an excellent choice. Carefully match the kit to your engine, and you will gain a reliable, convenient power source for years to come.

Frequently Asked Questions

Will a natural gas conversion affect my generator’s power output?

Yes, it typically will. Natural gas has a lower energy density than gasoline or propane, so you can expect a reduction in wattage output, often around 10-15%. This is a normal characteristic of the fuel. Your generator will still run effectively, but its maximum capacity will be slightly lower. Always derate your generator’s expected performance when planning for essential loads.

Can I convert any gasoline generator to run on natural gas?

Not all generators are suitable candidates. The engine must be a carbureted model, as fuel-injected engines require different, more complex systems. You also need a compatible conversion kit specifically designed for your engine’s size and model. Many modern portable generators with Honda-clone engines are prime candidates, while some inverter generators or very small engines may not have available kits.

Is it safe to install a conversion kit myself?

The mechanical installation of the carburetor or kit components is generally a safe DIY task if you are mechanically inclined and follow the instructions. However, the connection of the fuel line to your home’s natural gas supply is a different matter. This part of the installation must be done in accordance with local plumbing and gas codes. We strongly recommend hiring a licensed professional for this final connection to ensure safety and compliance, preventing dangerous gas leaks.

What is the difference between a tri-fuel and a dual-fuel kit?

A dual-fuel kit allows the generator to run on two fuels, typically gasoline and propane (LPG). A tri-fuel kit adds a third option: natural gas (CNG). This makes the tri-fuel kit more versatile, as you can choose the most convenient or available fuel source for any situation. For a permanent home backup solution, natural gas is ideal. For more information on generators that come with multiple fuel options from the factory, explore our page on tri-fuel generators.