Best Tri-Fuel Portable Generators for Natural Gas Backup Power
When seeking reliable portable power that can run on natural gas, propane, or gasoline, tri-fuel generators are a top choice. This guide highlights five capable models that perform well with natural gas as a fuel option, noting who each is best for, and why they stand out. Whether you need whole-home backup or a compact, quiet inverter for electronics protection, you’ll find practical, comparison-friendly details here.
| Product | Best For | Fuel Options | Key Benefit |
|---|---|---|---|
| Westinghouse 14500 Peak Watt Tri-Fuel | Large homes needing strong peak power | Gas, Propane, Natural Gas | Long runtime with big tank options |
| Generac 12,500 Starting Watt Tri-Fuel | Emergency backup with CO sensing | Gas, Propane, Natural Gas | COsense shows safety-oriented design |
| DuroStar DS13000MXT | Whole-home backup with transfer switch ready | Gas, Propane, Natural Gas | Push-button start and versatile outlets |
| Westinghouse 13500 Peak Watt Tri-Fuel | Medium-to-large homes with versatile outlets | Gas, Propane, Natural Gas | Multiple outlets with transfer switch capability |
| DuroMax XP13000HXT | Freedom of fuel choice for power outages | Gas, Propane, Natural Gas | CO Alert and reliable Tri Fuel performance |
Westinghouse 14500 Peak Watt Tri-Fuel Generator
This model delivers 14,500 peak watts with gasoline, or 13,500 peak on propane, and 12,000 peak watts on natural gas. It runs up to 19 hours on a 9.5 gallon tank and up to 7 hours on a 20 lb propane cylinder. The heavy-duty 550cc Westinghouse engine is built with a durable cast iron sleeve and features a built-in fuel gauge for easy monitoring. It is ideal for larger homes where high peak power is needed during outages. Best for homeowners seeking robust capacity and a long runtime in a single unit.
- Best for large homes or workshops requiring substantial peak output.
- Better for those who prefer a straightforward, push-button start and simple fuel gauge monitoring.
- Limitations: Higher fuel consumption at full load and larger footprint.
Generac 12,500 Starting Watt Tri-Fuel Generator
The Generac option provides 9,500 running watts on gasoline and 12,500 starting watts across fuels, with a 500cc OHV engine and a 7.5-gallon steel tank. It emphasizes easy-electric start with a rechargeable battery, reducing effort during outages. It’s a solid pick for users who want reliable power with flexible fuel options and CO-safe operation. Best for households that value quick start and consistent performance across fuels.
- Best for quick starting power in emergencies with multi-fuel flexibility.
- Better for users wanting automatic or push-button start for stress-free operation.
- Limitations: Runtime varies by fuel type and load; gasoline runtime is longest at mid-load.
DuroStar DS13000MXT Tri Fuel Portable Generator
The DS13000MXT delivers 13,000 watts, designed for whole-home scenarios and equipped with CO alert for safety. Tri Fuel capability allows operation on gasoline, propane, or natural gas, with a push-button start and a transfer switch-ready panel. This model suits households seeking a strong, versatile power source with accessible controls and a robust outlet selection.
- Best for full-home backup in storms or outages.
- Better for users who need a direct transfer switch-ready setup.
- Limitation: Heavier unit that requires adequate storage space and handling.
Westinghouse 12500 Peak Watt Tri-Fuel Generator
This unit offers 12,500 peak watts and 9,500 running watts on gasoline with dual GFCI outlets and a transfer switch-ready design. It includes a remote start with a key fob and a fuel gauge for up to 12 hours of runtime on a 6.6-gallon tank. It’s well-suited for mid-size homes or cabins that need reliable tri-fuel capability and user-friendly startup features.
- Best for medium-sized homes requiring dependable tri-fuel power with safety outlets.
- Better for users who like a compact yet capable option with remote start.
- Limitation: Smaller tank limits runtime on gasoline compared to larger models.
Westinghouse 28000 Peak Watt Tri-Fuel Generator
This powerhouse delivers 28,000 peak watts and 20,000 running watts on gasoline, with substantial outputs for all major outlets and a 17.2-gallon tank for up to 15 hours at 25% load. It’s designed for large homes and buildings that require extended run time and multiple receptacles, including transfer switch readiness. Best for property owners needing heavy-duty tri-fuel performance and long endurance.
- Best for large estates or workshops where maximum power is essential.
- Better for scenarios requiring multiple high-demand outlets and long runtimes.
- Limitation: Larger footprint and heavier weight; storage and mobility considerations apply.
Buying Guide: Key Considerations For Tri-Fuel Generators
Fuel flexibility matters most when outages strike and gas supply may vary. When evaluating tri-fuel generators, focus on power needs, runtime, and safety features. Pick models with adequate peak watts to cover essential circuits and high-demand appliances.
- Power needs: Determine the sum of essential appliances and circuits you want to keep running. Larger homes may need 10,000–15,000 running watts; whole-home backups require higher capacities.
- Fuel availability: Consider typical fuel availability in your area. Natural gas is steady but may require a dedicated line; propane offers portability, while gasoline is widely available but less stable over long storage periods.
- Runtime and tank size: A larger fuel tank increases runtime. Compare runtime at 50% load to estimate practical endurance during outages.
- Safety features: CO detection, low-oil shutdown, and remote/automatic start reduce risk and improve reliability during emergencies.
- Outlets and transfer switch readiness: Ensure the generator has the right outlets for your transfer switch and home circuits. Rubber-covered outlets add safety in wet environments.
- Portability vs. stationary: Heavier, high-watt models offer more power but are less portable. Consider mobility features like wheels and handles for easier movement.
Frequently Asked Questions
- What is a tri-fuel generator?
A tri-fuel generator can operate on gasoline, propane, or natural gas, giving you fuel flexibility during outages.
- Which fuel is best for long outages?
Natural gas often provides steady access for long outages, while propane is portable and gasoline offers high energy density. The choice depends on availability and storage considerations.
- Do tri-fuel generators require special installation?
Some models are transfer switch ready and can support whole-home backup with professional installation. Always follow manufacturer guidelines for safe operation.
- Are inverter tri-fuel generators safer for electronics?
Inverter-equipped models provide clean power with low total harmonic distortion, which is safer for sensitive electronics.
- What maintenance is needed for tri-fuel units?
Regular oil changes, spark plug checks, air filter cleaning, and fuel system maintenance are recommended. Follow the user manual for interval guidance.
- How do I choose between peak watts and running watts?
Running watts cover typical loads; peak watts handle startup surges. Ensure the running watts meet or exceed your essential appliances’ needs.