When the power goes out, you need your generator to work without the hassle of storing volatile fuels. Converting your portable generator to run on natural gas provides a seamless, on-demand power source directly from your home’s supply. This guide is for homeowners seeking a more convenient and economical backup power solution.
We have evaluated two popular conversion kits to help you transition your equipment. For a broader look at natural gas power options, explore our category page on Natural Gas Generators.
Pros
- True tri-fuel capability provides significant cost savings compared to gasoline-only operation
- Durable metal and plastic construction designed for commercial-grade reliability
- Flexible fuel options eliminate dependence on single fuel type availability
- Compatible with standard aftermarket regulators for easy system customization
- Solid 4.2-star user rating demonstrates proven performance in real-world applications
Cons
- Requires case modification to accommodate alternative fuel supply hose installation
- Requires compatible regulator purchase, which is not included in the kit
- Low-pressure fuel system requires precise inlet pressure settings for optimal performance
The Nashfuel Tri-Fuel Conversion Kit is a specialized upgrade for Predator 3500W inverter generator owners seeking multi-fuel flexibility. This kit allows you to switch between propane, natural gas, and gasoline, making it valuable for homeowners needing backup power, commercial contractors managing job site equipment, and anyone looking to optimize fuel costs and availability.
The standout feature is genuine tri-fuel capability without replacing your entire generator. You get the convenience of running cheaper natural gas or propane when available, then switching to gasoline as a backup. The kit operates on low-pressure fuel supply requiring 9-13.8 inches water column inlet pressure, and works with both Impco and aftermarket regulators for system flexibility. This design approach appeals to users who want options rather than being locked into one fuel source.
Build quality reflects commercial-grade standards with metal and plastic components engineered for durability. The conversion kit integrates directly with your Predator 3500 generator without replacing core components. However, installation demands case modification to route the alternative fuel supply hose, which requires mechanical skill or professional installation. This is not a plug-and-play upgrade.
The main drawback is that a compatible regulator must be purchased separately, adding to overall project cost. Additionally, the low-pressure fuel system requires careful setup and maintenance to ensure proper inlet pressure specifications are met. Users unfamiliar with fuel system work should budget for professional installation.
For Predator 3500 generator owners committed to multi-fuel capability and willing to invest time in proper installation, this conversion kit delivers real value through operational flexibility and potential long-term fuel savings. The solid user rating confirms it performs as intended when properly installed.
Generator Compatibility: Predator model 63584 inverter generator
Power Output: 3500 watts maximum wattage
Voltage: 175 volts
Fuel Options: Propane (low pressure), natural gas (low pressure), gasoline
Required Inlet Pressure: 9-13.8 inches water column
Regulator Compatibility: Impco or aftermarket regulators
Components: Tri-fuel conversion kit with metal and plastic construction
Installation: Case modification required for alternative fuel supply hose routing
Is this right for you? This conversion kit suits Predator 3500 generator owners who want multi-fuel flexibility and are comfortable with installation requirements. It's ideal for backup power systems, commercial job sites, or applications where fuel availability varies.
Installation Considerations: Plan for case modification work, which requires mechanical aptitude or professional help. Budget for a compatible regulator separately. Ensure your fuel supply can deliver the required 9-13.8 inches water column inlet pressure.
Cost Planning: Factor in regulator purchase and potential professional installation costs beyond the kit price. Calculate long-term savings based on your local propane and natural gas pricing versus gasoline.
Maintenance: Regular inspection of fuel lines, regulator settings, and pressure specifications ensures reliable operation. Keep documentation on fuel system setup for reference during maintenance cycles.
Buying Guide
Generator Compatibility
Your first step is confirming the kit fits your specific generator model. A mismatch can lead to poor performance or damage. Always check the manufacturer’s compatibility list before purchasing.
Kits are designed for particular engine types and carburetor configurations. The Natural Gas Conversion Kit fits Westinghouse is engineered for a specific dual-fuel model. The Propane Natural Gas Conversion Predator 3500 targets the Predator 63584 inverter generator.
Fuel Flexibility
Consider how many fuel options you want after conversion. Some kits convert your generator to run solely on natural gas. Others offer tri-fuel capability, letting you switch between gasoline, propane, and natural gas.
This flexibility is crucial during extended outages. A tri-fuel kit provides a valuable backup to your backup. You can learn more about multi-fuel systems in our guide to Tri-Fuel Generators.
Installation Requirements
Installation complexity varies significantly between kits. Some require no permanent modification, using existing ports. Others may need case modifications to route new fuel lines.
Assess your comfort with tools and mechanical work. A simpler installation preserves your generator’s warranty and original function. More involved modifications should be performed carefully to ensure safety and reliability.
Regulator and Pressure Needs
Natural gas requires precise pressure regulation for safe operation. Most conversion kits need an external regulator to reduce home line pressure to a usable level, typically between 9 and 14 inches of water column.
You must verify your home’s gas supply can meet this requirement. Consistent pressure is key for steady generator performance, especially for sensitive electronics. For generators designed for harsh conditions, see our review of all-weather natural gas standby generators.
Final Thoughts
Choosing the right conversion kit enhances your home’s resilience. For Westinghouse WGEN9500DF owners seeking a straightforward dual-fuel solution, the Natural Gas Conversion Kit fits Westinghouse offers a clean installation. If you own a Predator 3500 and desire maximum fuel flexibility, the Propane Natural Gas Conversion Predator 3500 provides reliable tri-fuel capability. Both represent effective paths to convenient, natural gas-powered backup.
Frequently Asked Questions
Will a natural gas conversion void my generator’s warranty?
It might. Many manufacturers state that modifications can void the warranty. Always review your generator’s warranty terms before installing any conversion kit. Some kits are designed to be non-invasive to help preserve warranty status.
Can I switch back to gasoline after installing a conversion kit?
Yes, most kits allow you to retain gasoline functionality. The design often involves a simple hose connection swap. This reversibility is a major benefit, giving you fuel options during any situation. For more on systems that use multiple fuels, visit our page on Dual Fuel Generators.
Do I need a professional to install a natural gas conversion kit?
It depends on the kit and your skill level. Simple bolt-on kits with clear instructions can be a DIY project for mechanically inclined individuals. Any work involving your home’s natural gas line should be performed by a licensed professional to ensure safety and compliance with local codes.
How does generator performance compare on natural gas versus gasoline?
Generators typically produce slightly less power on natural gas due to its lower energy density. The difference is often marginal for most home backup needs. The trade-off is worth it for the convenience of an unlimited fuel supply connected to your home.
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