Best Tri-Fuel Generators for Reliable Backup Power
Tri-fuel generators offer flexibility by running on gasoline, propane, or natural gas. This article surveys top models designed for American homes and RV use, focusing on running and peak wattage, ease of starting, and transfer-switch readiness. Each option below powers essential circuits during outages, with safety features like CO sensors and low-oil shutoffs. Whether you need a compact inverter-style unit or a heavy-duty portable powerhouse, these selections cover a range of homes and budgets.
| Product | Fuel Options | Peak / Running Watts |
|---|---|---|
| Westinghouse 12500 Peak Watt Tri-Fuel | Gas, Propane, Natural Gas | 12500 / 9500 (Gas); 11200 / 8500 (Propane); 9500 / 7500 (Natural Gas) |
| Westinghouse 14500 Peak Watt Tri-Fuel | Gas, Propane, Natural Gas | 14500 / 11500 (Gas); 13500 / 10500 (Propane); 12000 / 9500 (Natural Gas) |
| DuroStar DS13000MXT 13,000-Watt Tri Fuel | Gas, Propane, Natural Gas | 13000 (Gas); (Propane/Natural Gas specs in brochure) |
| Generac 12,500 Starting Watt Tri-Fuel | Gas, Propane, Natural Gas | 12500 (Starting); 9500 (Running on Gas); 12500 (Starting) with other fuels |
| Westinghouse 13500 Peak Watt Tri-Fuel | Gas, Propane, Natural Gas | 13500 / 10500 (Gas); 12500 / 9500 (Propane); 10000 / 8500 (Natural Gas) |
Westinghouse 12500 Tri-Fuel Generator
The Westinghouse 12500 Peak Watt Tri-Fuel generator is designed for home backup and portable use. It delivers 12500 peak watts and 9500 running watts when using gasoline, with similar tri-fuel performance on propane and natural gas. Key features include remote start via key fob, electric and recoil starting options, a 6.6-gallon fuel tank with gauge, and transfer switch readiness. The unit runs on a 457cc Westinghouse OHV engine with safety features such as automatic low-oil shutdown and a CO alarm, plus multiple outlets protected by rubber covers.
Westinghouse 14500 Tri-Fuel Generator
Ideal for larger homes or demanding portable power needs, the Westinghouse 14500 Peak Watt model provides 14500 peak watts and 11500 running watts on gasoline, with strong performance on propane and natural gas. It uses a heavy-duty 550cc engine and a long 9.5-gallon fuel tank with a gauge. It can run up to around 19 hours on a full tank and includes transfer-switch readiness and multiple outlets with safety coverings for outdoor use. This unit balances power, flexibility, and endurance for extended outages.
DuroStar DS13000MXT Tri Fuel Generator
The DS13000MXT from DuroStar offers 13,000 watts of tri-fuel power with convenient remote electric start and a full power panel. It is designed for whole-home backup and transfer switch readiness, including a wide selection of outlets and a CO alert system for user safety. The unit emphasizes fuel flexibility and simple operation, allowing users to switch fuels quickly to match availability during emergencies or outdoor work sites, while maintaining stable power delivery.
Generac 12,500 Starting Watt Tri-Fuel
Generac’s 12,500 Starting Watt Tri-Fuel portable generator is engineered for home backup with COsense carbon monoxide detection. It runs on gasoline, propane, or natural gas and features a 500cc Generac OHV engine with a sizable fuel tank, offering up to several hours of runtime depending on fuel selected. The unit includes a push-button electric start and a selection dial for choosing fuel type, aimed at reliable operation during emergencies with minimal manual effort.
Westinghouse 13500 Peak Watt Tri-Fuel
The Westinghouse 13500 Peak Watt Tri-Fuel generator provides robust power with 13500 peak watts (gas), 12500 peak watts (propane), and 10000 (natural gas). It features a 9.5-gallon tank for extended runtime, a digital hour meter, and a CO shutdown system. An electric start, remote control options, and multiple outlets with rubber covers make it suitable for whole-home backup in moderate to large homes and RV setups, ensuring a quick response during outages.
Your Buying Guide: Key Considerations For Tri-Fuel Generators
- Fuel flexibility: Confirm that the unit truly supports all three fuels with an intuitive selector and compatible fuel supply hoses or adapters included or readily available.
- Power needs: Assess your essential circuits and determine peak vs running watts. Choose a generator with sufficient headroom for your critical loads, including refrigerators, sump pumps, and heating systems.
- Starting system: Electric start is convenient, but ensure backup recoil start is available in case of battery issues. A remote start feature adds ease during cold starts.
- Runtime and fuel capacity: Look for larger fuel tanks or fuel gauge presence to estimate runtime at typical loads. Remember that running on natural gas may yield longer runtimes than propane depending on supply.
- Safety features: CO sensors/shutoff, low-oil automatic shutdown, and properly rated outlets with weather-resistant covers improve overall safety for outdoor use.
- Transfer switch readiness: If you plan to power a home panel, ensure the unit is transfer-switch ready or compatible with an interlock kit for safe integration with your home electrical system.
- Portability vs. power: Heavier units deliver more power but are less portable. Consider wheel kits, handles, and overall dimensions in relation to your intended use location.
- Noise and emissions: Inverter-based tri-fuel units can operate more quietly with efficient engine management. Check local noise regulations and look for CO emission controls for indoor or semi-indoor use.
- Warranty and service: Review warranty length, coverage for tri-fuel components, and availability of local service networks to minimize downtime after outages.
- Warranty and service: Review warranty length, coverage for tri-fuel components, and availability of local service networks to minimize downtime after outages.