Best Tri-Fuel and Dual-Fuel Generators for Home Backups
Power outages can strike without warning, especially during storms. A tri-fuel or dual-fuel generator provides flexibility to run on gasoline, propane, or natural gas, ensuring you stay powered when the grid goes down. This guide highlights top options that balance run time, power, and ease of use, so American households can choose a reliable backup solution.
| Product | Fuel Types | Peak Watts | Run Time (approx.) | Key Feature |
|---|---|---|---|---|
| Westinghouse 13500 Peak Watt Tri-Fuel | Gas, Propane, Natural Gas | 13,500 | Up to 19 hrs | Remote start, transfer switch ready |
| WEN 14,500-Watt Tri-Fuel (TF1450X) | Gas, Propane, Natural Gas | 14,500 | Depends on fuel | CO Watchdog sensor, transfer-switch ready |
| Westinghouse 14500 Peak Watt Tri-Fuel | Gas, Propane, Natural Gas | 14,500 | Up to 19 hrs | Heavy duty engine, long-life components |
| Westinghouse 13500 Peak Watt Dual Fuel | Gas, Propane | 13,500 | Up to 19 hrs | Digital hour meter, multiple outlets |
| DuroMax XP13000HXT Tri Fuel | Gas, Propane, Natural Gas | 13,000 | Varies by fuel | CO Alert, robust 500cc engine |
Westinghouse 13500 Peak Watt Tri-Fuel

The Westinghouse 13500 Peak Watt Tri-Fuel generator delivers flexible power options for home backup use. It operates on gasoline, propane, or natural gas, offering a peak wattage of 13,500 (gas) and adjusted figures for propane and natural gas modes. Features include a remote start with a key fob, electric and recoil start, and a 9.5-gallon fuel tank with a fuel gauge for extended run times. It is transfer switch ready and includes outlets with rubber safety covers, plus a CO shutdown system and a digital hour meter to monitor performance. Ideal for larger homes requiring substantial portable backup power with multi-fuel capability.
Key specifications to consider include the 500cc OHV engine, safety shutoffs, and multiple receptacles for convenience. The unit’s design emphasizes durability and safety, with automatic low oil shutdown and a CO sensor to protect occupants during operation.
WEN 14,500-Watt Tri-Fuel Generator

The WEN TF1450X model supports gasoline, propane, and natural gas, switching fuels with a simple dial. It provides 12,000+ watt ranges across fuel types and runs on 120V/240V, making it compatible with common transfer switches for home backup. A standout safety feature is the CO Watchdog sensor, which automatically shuts the generator off if elevated carbon monoxide levels are detected. This unit is designed for predictable performance during emergencies and focuses on user safety and reliability in a portable frame.
Considerations include the switch-over ease between fuels, the available power for essential appliances, and the inclusion of an CO detector. The WEN unit balances power with careful emissions controls and safety features that are important for households with climate-sensitive equipment or indoor use in semi-outdoor spaces.
Westinghouse 14500 Peak Watt Tri-Fuel

This Westinghouse 14500 Peak Watt Tri-Fuel unit targets homeowners needing robust power for heavy loads. In gasoline mode, it delivers 11,500 running watts; propane and natural gas modes provide slightly different running watts while maintaining high peak output. The engine is a heavy-duty 550cc 4-stroke with a cast iron sleeve, designed for long life. It runs up to 19 hours on a full 9.5-gallon tank and includes safety features such as automatic low oil shutdown and CO shutdown. Outlets are rubber-covered for safety, and the unit includes a digital hour meter for maintenance planning.
Pros include strong peak performance, extended run times, and the flexibility of three fuels. Potential drawbacks can include weight and size for transport, as well as the need for proper fuel line installation when using natural gas at the home. This model suits larger homes or remote job sites requiring substantial, dependable backup power.
Westinghouse 13500 Peak Watt Dual Fuel

The Westinghouse 13500 Peak Watt Dual Fuel generator focuses on gasoline and propane power, offering 13,500 peak watts on gasoline and a lower figure on propane. It includes remote electric start, a 9.5-gallon fuel tank with a fuel gauge, and multiple outlets with rubber covers for safety. The unit is transfer switch ready and features a 500cc Westinghouse 4-stroke OHV engine with a cast iron sleeve, along with automatic low oil and CO shutdown. A digital hour meter helps track runtime and maintenance needs, making this a practical option for households seeking reliable dual-fuel capability without the complexity of tri-fuel configurations.
When evaluating dual-fuel options, consider availability of propane, the expected runtime on each fuel type, and how the top-end wattage aligns with your essential circuit needs. This model offers a solid balance of power, ease of use, and safety features for standard household backup scenarios.
DuroMax XP13000HXT Tri Fuel

The DuroMax XP13000HXT offers tri-fuel versatility, running on gasoline, propane, or natural gas. It provides a substantial 13,000 watts of power and incorporates a CO Alert system to mitigate fumes exposure during operation. The engine is a robust 500cc OHV design intended to supply consistent power during outages, enabling whole-home backup for extended periods. The unit is designed for ease of use with multiple starting options and a focus on safe operation in emergency scenarios.
Key considerations include the availability of natural gas connections, the ease of switching fuels, the total runtime across fuels, and compatibility with home standby transfer switches. DuroMax emphasizes power and reliability, making this a strong candidate for households prioritizing fuel flexibility and strong performance in adverse weather conditions.
Buying Guide
- Fuel flexibility: Tri-fuel units provide the widest fuel source options, helpful during fuel shortages. Dual-fuel units cover basic needs with two fuel choices, typically gasoline and propane.
- Power and load management: Check peak watts vs running watts to ensure essential appliances (refrigerator, sump pump, HVAC, lights) can operate simultaneously. Transfer switch compatibility is essential for safe integration with home electrical systems.
- Run time and tank size: Larger fuel tanks extend operation between refueling, but add weight and size. Look for fuel gauge readability and real-world runtime estimates under typical loads.
- Safety features: CO shutdown, low-oil shutoff, and rubber outlet covers reduce risk. An integrated CO detector (CO Watchdog) and overload protection are valuable for family safety.
- Starting method: Remote electric start is convenient for frequent use, especially in harsh weather. Recoil start remains a reliable backup if batteries fail.
- Portability vs. portability: Consider wheel kits and handle design if you need to move the unit between a driveway, garage, or job site. Heavier models offer more power but require careful handling.
- Maintenance: Look for digital hour meters and easy access to service intervals. Cast-iron sleeves and robust engines support longer life in demanding climates.
- Noise and emissions: Inverter-based units often run quieter and with lower THD, beneficial for electronics. CO sensors enhance safety in enclosed spaces.
- Budget vs. needs: Higher wattage and more fuel options can justify price for whole-house backup, while smaller setups suit essential-load scenarios.