Finding a reliable portable generator that runs on natural gas—or blends of fuels like gasoline and propane—offers flexibility during outages or outdoor work. This guide highlights top tri‑fuel and dual‑fuel models that support natural gas as a primary option, plus other fuels for versatility. Each model below provides robust wattage, convenient starting methods, and transfer‑switch readiness to help you compare how they perform in real‑world scenarios.
| Product | Brand | Fuel Options | Peak Watts | Running Watts (Gas) |
|---|---|---|---|---|
| Westinghouse 14500 Peak Watt Tri-Fuel | Westinghouse | Gas, Propane, Natural Gas | 14,500 | 11,500 (Gas) |
| Westinghouse 12500 Peak Watt Tri-Fuel | Westinghouse | Gas, Propane, Natural Gas | 12,500 | 9,500 (Gas) |
| WEN 14500-Watt Tri-Fuel | WEN | Gas, Propane, Natural Gas | 14,500 | 11,500 (Gas) |
| DuroStar DS13000MXT | DuroStar | Gas, Propane, Natural Gas | 13,000 | Based on fuel |
| Westinghouse 12500 Watt Dual Fuel | Westinghouse | Gas, Propane | 12,500 | 9,500 (Gas) |
Westinghouse 14500 Peak Watt Tri-Fuel Backup Generator
The Westinghouse 14500 Peak Watt Tri-Fuel generator delivers substantial power for larger homes or job sites. It runs on gasoline, propane, or natural gas and features a heavy‑duty 550cc OHV engine with a cast iron sleeve for durability. With a long runtime—up to 19 hours on a full 9.5-gallon tank and up to seven hours on a 20‑lb propane tank—it supports extended outages. Remote electric start adds convenience, and it is designed to be transfer Switch Ready for seamless home backup integration.
Westinghouse 12500 Peak Watt Tri-Fuel Backup Generator
This model provides 12,500 peak watts with 9,500 running watts on gasoline, plus higher outputs on propane and natural gas. It includes a remote starter with a key fob and an electric/recoil start option. A 6.6‑gallon fuel tank fuels up to 12 hours of operation, and multiple outlets are protected by rubber covers for safety. It also features a digital hour meter and CO shutdown features to monitor running conditions and protect occupants.
WEN 14500-Watt Tri-Fuel Generator
The WEN TF1450 offers an easy fuel-switch with a dial to select gasoline, propane, or natural gas. It operates at both 120V and 240V, making it suitable for transfer switches and whole‑home backup situations. The included electric start simplifies operation, while the 500cc engine provides steady power delivery. This model emphasizes versatility for users who need flexibility across fuel sources and compatible outlets for diverse setups.
DuroStar DS13000MXT Tri Fuel Portable Generator
The DS13000MXT is designed to power a whole home during outages, offering tri‑fuel flexibility and a strong 13,000‑watt output. It uses a 500cc engine and includes a full power panel with a transfer switch‑ready 50‑amp outlet. CO alert and automatic shutdown help protect occupants, while the heavy‑duty design supports extended runs when needed. Its user interface includes a fuel selector knob and push‑button starting for quick readiness.
Westinghouse 12500 Watt Dual Fuel Generator
This Westinghouse dual‑fuel unit delivers 12,500 watts on gasoline and 9,500 watts on natural gas, with propane serving as an additional option. It includes a remote start with a key fob and a digital hour meter for maintenance tracking. The 6.6‑gallon tank supports long operation, while transfer‑switch readiness and multiple outlets with rubber covers enhance home backup suitability. The VFT display shows voltage, frequency, and runtime to help monitor performance.
Westinghouse 11000 Peak Watt Tri-Fuel Inverter Generator
This inverter generator blends tri‑fuel capability with inverter technology for clean power suitable for electronics. It provides a high peak wattage of 11,000 watts with gas/propane/natural gas options, plus a 50A transfer‑switch compatible setup. The unit emphasizes fuel efficiency and reduced noise while maintaining portability for on‑site power or emergency backup.
Buyers Guide: Key Considerations For Choosing A Portable Tri‑Fuel Or Dual‑Fuel Generator
- Fuel flexibility: Decide which fuels you will rely on most. Tri‑fuel models excel in outages where a single fuel supply may be interrupted. Assess availability and cost of gasoline, propane, and natural gas in your area.
- Power needs: Estimate running watts for essential circuits and total peak watts for startup surges. A higher peak watt rating ensures safe startup of appliances like refrigerators and air conditioners.
- Transfer switch compatibility: Look for transfer switch ready outlets or interlock kit options to safely connect to a home electrical panel without backfeeding the grid.
- Starting method: Remote electric start and key fob options add convenience, especially during stormy conditions or cold weather. Consider recoil start as a reliable backup.
- Fuel economy and runtime: Larger tanks and efficient engines contribute to longer runtimes. Check fuel gauge features to monitor consumption and plan refueling.
- Safety features: CO detection and shutoff systems, rubber outlet covers, and low‑oil or CO sensors help protect occupants and equipment.
- Portability and noise: Inverter models typically run quieter and produce cleaner power, making them well suited for sensitive electronics. For static backup at a home, a larger open‑frame may deliver higher peaks at the cost of portability and noise.
- Maintenance and durability: Engines with cast‑iron sleeves and robust status indicators reduce maintenance risk in challenging environments. Verify warranty coverage and service availability in your region.