Best Portable Generator Natural Gas Conversion Kits for Backup Power
Looking to run a portable generator on natural gas with minimal hassle? This guide highlights top conversion kits that convert common portable generators to natural gas, propane, or tri-fuel operation. Each option is best for users who want flexibility during outages, easier fuel storage, and a quick swap between fuels without major carburetor mods. The table compares key strengths to help you choose the right kit for your generator model and intended use.
| Product | Best For | Fuel Type | Notes |
|---|---|---|---|
| Natural Gas Conversion Kit Compatible with Duromax XP12000EH | Duromax XP12000EH owners | Natural Gas / Gasoline | Low-pressure natural gas inlet; no permanent modification; switch back to gasoline or propane easily |
| Grenergy EU2000i Tri-Fuel Conversion Kit | Grenergy EU2000i users | Propane / Natural Gas / Gasoline | No carburetor modification; ready to run on propane; ideal for emergency storage |
| YAMAKATO Dual Tri Fuel Carburetor Kit | Multiple small and mid-size generators | Natural Gas / Gasoline / Propane | Broad compatibility with many brands; tri-fuel carb kit; includes mounting gaskets |
| Westinghouse WGEN9500DF Natural Gas Conversion Kit | Westinghouse WGEN9500DF models | Natural Gas / Gasoline | No permanent carburetor changes; preserves gasoline operation |
| Grenergy EU2200i Tri-Fuel Kit | Grenergy EU2200i users | Propane / Natural Gas / Gasoline | Out-of-box propane readiness; carburetor-friendly installation |
The following sections detail each product’s setup compatibility, best-use scenarios, and practical considerations to help you decide which kit fits your backup-power plans.
Natural Gas Conversion Kit for Duromax XP12000EH
This kit uses the existing carburetor port for a natural gas inlet, enabling a low-pressure natural gas conversion without permanent modification. It preserves the ability to run on gasoline, and switching back to propane is possible by reconnecting the stock propane hose. Best for Duromax XP12000EH owners who want a quick, reversible natural gas option that complements their dual-fuel setup.
Who it’s best for: users with a Duromax XP12000EH seeking easy natural gas operation while retaining gasoline and propane options. Cautions: ensure the kit remains correctly connected during venting and that you follow installation instructions to avoid fuel leaks.
Grenergy EU2000i Tri-Fuel Conversion Kit
Grenergy’s tri-fuel kit is designed for inverter generators like the EU2000i, arriving as a complete solution with propane ready out of the box. It allows switching between gasoline and propane with minimal effort and includes compatibility with natural gas in emergency scenarios. The carburetor-friendly design helps prevent long-term gumming and drain issues, which can be advantageous for off-grid storage and disaster readiness.
Who it’s best for: users who want a turnkey tri-fuel solution with straightforward installation and long-term carburetor protection. Cautions: compatibility is best documented for Grenergy’s own platforms and similar small-inverter designs; verify model compatibility for non-Grenergy units.
YAMAKATO Dual Tri Fuel Carburetor Kit
This carb kit targets Honda and clone GX-series engines and offers tri-fuel compatibility for gasoline, natural gas, and propane. It is positioned as OEM-quality, with mounting gaskets included for a wide range of Generac, Champion, and other popular generators. Best for: users with GX-based engines or similar 196cc–224cc displacements seeking broad tri-fuel support.
Limitation: the kit lists broad compatibility, which may require verification for your specific generator model and displacement. Choose this if you need broad compatibility and a kit that includes essential gaskets and mounting hardware.
Natural Gas Conversion Kit For Westinghouse WGEN9500DF
This kit uses the existing port in the carburetor for natural gas and allows operation without permanent modification while preserving gasoline operation. It’s well-suited for Westinghouse WGEN9500DF users who want to add natural gas capability without altering the base carburetor at all times. Best for: Westinghouse WGEN9500DF owners needing a reversible natural gas option with quick reversion to gasoline.
Limitation: ensure precise port alignment with your model to avoid leaks; verify hose routing complies with your generator’s clearance and venting requirements.
Grenergy EU2200i Tri-Fuel Kit
The EU2200i tri-fuel kit from Grenergy is designed to be a complete solution, pre-configured to run on propane and offering natural gas and gasoline support. The kit emphasizes carburetor-friendly installation and stores long-term reliability by reducing carburetor gumming. Best for: EU2200i owners seeking straightforward, out-of-the-box propane readiness with flexible fuel options.
Limitation: this kit emphasizes propane-first readiness; confirm compatibility with non-Grenergy units or different displacement engines before purchase.
Buying Guide
Key considerations when choosing a natural gas conversion kit for portable generators:
- Generator compatibility: Verify model, displacement, and whether the kit supports your engine family (GX, Honda, Generac, Westinghouse, etc.).
- Fuel flexibility: Decide if you want natural gas only, or tri-fuel capability (gasoline, propane, natural gas) for outage versatility.
- Carburetor impact: Prefer kits that advertise no permanent carburetor modification or easy revert-to-gasoline options.
- Installation complexity: Some kits are bolt-on; others require gasket sets and some minor adjustments. Assess your mechanical comfort level.
- Long-term maintenance: Look for carburetor-friendly designs that reduce gumming or require minimal seasonal prep.
- Storage and accessibility: Consider the practicality of storing propane or natural gas supplies alongside your generator.
FAQs
- Do these kits require professional installation? Some are designed for DIY bolt-on installation, but always follow the manufacturer’s instructions and, if unsure, consult a technician.
- Can I switch fuels quickly during an outage? Many kits are designed for quick switching between fuels, though the exact steps vary by model.
- Will my warranty be affected? Warranty terms vary by kit and generator; check with the manufacturer and your generator’s warranty terms before modifying.
- Are natural gas conversions safe for long-term storage? Yes, the kits aim to minimize carburetor gumming and maintain safe operation when correctly installed.
- Is a tri-fuel kit necessary for everyone? Tri-fuel capability adds flexibility, especially in emergencies or locations with fluctuating fuel availability.
- What maintenance is required after installation? Periodic inspection of hoses, gaskets, and connections is recommended to prevent leaks and ensure reliable operation.