In heavy weather and power outages, a reliable natural gas generator set keeps essential appliances running without the hassle of refueling. This guide highlights five top tri-fuel generators that handle natural gas and other fuels, with safety features and remote start options. Each model supports transfer switches for seamless backup power, and many include CO detection to protect households. Below you’ll find quick product summaries and an in-depth look at selected units to help you choose the right natural gas generator set for your home.
| Product | Brand | Fuel Flexibility | Best For |
|---|---|---|---|
| TF1450X | WEN | Gas, Propane, Natural Gas | Balanced power and safety features |
| XP13000HXT | DuroMax | Gas, Propane, Natural Gas | High power, robust engine |
| 14500 Tri-Fuel | Westinghouse | Gas, Propane, Natural Gas | Large home backup, long runtime |
| GP9500 | Generac | Gas, Propane, Natural Gas | Electric start, durable protection |
| 13500 Tri-Fuel | Westinghouse | Gas, Propane, Natural Gas | Remote start, transfer ready |
Note: Specs reflect typical configurations and safety features such as CO shutdown and transfer-switch compatibility. When selecting a generator set, consider your peak load, fuel availability, running time, and local regulations regarding CO emissions and installation requirements.
WEN TF1450X Tri-Fuel Generator

The WEN 14,500-Watt tri-fuel model supports gasoline, propane, and natural gas, with 14500 surge watts and 11500 running watts on gasoline. It also offers 12500 surge watts/10300 running watts on propane, and 10500 surge watts/8750 running watts on natural gas. Designed for transfer switches and emergency backup, it operates at both 120V and 240V. A standout safety feature is the WEN Watchdog CO Shutdown Sensor, which automatically shuts off the generator if carbon monoxide levels become dangerous.
DuroMax XP13000HXT Tri Fuel Generator

The DuroMax XP13000HXT delivers 13,000 watts with a 500cc OHV engine and supports gasoline, propane, or natural gas. It includes CO Alert to help protect occupants during operation. The Tri Fuel capability provides fuel flexibility to match fuel availability during emergencies, keeping essential circuits powered in storms or outages.
Westinghouse 14500 Peak Watt Tri-Fuel

This Westinghouse model provides up to 14,500 peak watts and 11,500 running watts (gas), plus 13,500 peak/10,500 running watts on propane, and 12,000 peak/9,500 running watts on natural gas. It offers remote electric start and transfer-switch readiness. The heavy-duty 550cc OHV engine, cast-iron sleeve, and long runtime (up to 19 hours on a full tank) support sustained use for larger homes or job sites.
Generac 12,500 Starting Watt Tri-Fuel

Generac GP9500 is built for rugged environments with covered outlets for harsh conditions. It features an electric start (battery included) for easy operation and long runtime thanks to a large-capacity fuel system. The engine and design emphasize durable protection and reliable performance during emergencies, with a practical runtime suitable for home backup and recreational use.
Westinghouse 13500 Peak Watt Tri-Fuel

Westinghouse’s 13500 Tri-Fuel generator delivers 13,500 peak watts and 10,500 running watts on gasoline, with 12,500/9,500 on propane and 10,000/8,500 on natural gas. It includes remote start via key fob, both electric and recoil starts, and up to 19 hours of runtime on a 9.5-gallon tank. Portable yet Transfer Switch Ready, it suits larger homes seeking dependable backup power.
Westinghouse 12500 Peak Watt Tri-Fuel

This Westinghouse model offers 12,500 peak watts and 9,500 running watts on gasoline, 11,200 peak/8,500 running on propane, and 9,500/7,500 on natural gas. It includes remote start with a key fob, and a 6.6-gallon fuel tank with a fuel gauge. It features two GFCI outlets, transfer switch readiness, and a digital hour meter for easy maintenance tracking.
DuroMax XP13000EH Dual Fuel

The XP13000EH combines dual-fuel capability with electric start and full transfer switch readiness. It powers a home during outages and is designed to support large loads with a robust DuroMax engine. As a dual-fuel unit, it offers flexibility to run on gasoline or propane, with natural gas support in some configurations, ensuring continued operation when one fuel source is low.
Westinghouse 14500 Peak Watt Dual Fuel

This dual-fuel Westinghouse generator offers a generous 14,500 peak watts and 11,500 running watts on gas, with 13,500 peak and 10,500 running watts on propane. It runs up to 19 hours on a large 9.5-gallon fuel tank and supports robust transfer switch integration. The design emphasizes heavy-duty construction and safety with automated CO monitoring and shutdown features where applicable.
Buying Guide: Key Considerations For Natural Gas Generator Sets
Fuel accessibility, reliability, and load needs drive the best choice for a natural gas generator set. Consider the following factors to compare options:
- Fuel flexibility: Tri-fuel units offer gasoline, propane, and natural gas, giving fallback options during shortages.
- Power output: Evaluate peak watts and running watts to ensure the unit supports essential appliances and circuits in your home.
- Starting method: Electric start is convenient for frequent use; recoil or manual start may be cheaper but less convenient.
- Transfer switch readiness: A transfer switch enables safe, automatic or manual switching to generator power during outages.
- Runtime and tank size: Look at runtime at a given load and fuel tank capacity to gauge how long power lasts without refueling.
- Engine and build: Durable engines and cast-iron sleeves improve longevity in demanding conditions.
- Safety features: CO shutdown sensors and automatic shutdown protections reduce risk in enclosed spaces.
- Noise and portability: Consider enclosure design and weight if the generator needs to be moved or stored outside.
- Compliance and installation: Ensure the model complies with local codes and that installation is performed by a qualified electrician when using transfer switches.
When selecting a natural gas generator set, align the model’s capabilities with your backup power goals. For larger homes, prioritize higher peak watts and longer runtimes. If fuel access is variable, tri-fuel options can minimize outages. For safety, verify carbon monoxide detection and safe exhaust placement in your installation area. Finally, compare warranty terms and service networks to minimize downtime during maintenance or repairs.