Best Portable Generators That Run on Natural Gas
If you need portable power that can run on natural gas, you’re looking for tri-fuel generators that adapt to your fuel supply. This guide highlights five top options, explains who they’re best for, and compares key features like runtime, wattage, and ease of starting. It’s ideal for homeowners seeking emergency backup, outdoor enthusiasts needing off-grid power, or contractors needing reliable on-site power. The buyer’s table below summarizes the core specs to help you decide quickly.
| Product | Peak / Running Watts (Gas) | Fuel Options | Approximate Run Time | Special Notes |
|---|---|---|---|---|
| Westinghouse 13500/10500 | 13500 / 10500 | Gas, Propane, Natural Gas | Up to 19 hours | Remote start, transfer switch ready |
| Westinghouse 14500/11500 | 14500 / 11500 | Gas, Propane, Natural Gas | Up to 19 hours | High power for larger homes |
| Generac 12500 | 12500 | Gas, Propane, Natural Gas | 9.5 hours | COsense CO Detection |
| DuroMax XP13000HXT | 13000 | Gas, Propane, Natural Gas | High power for storms | CO Alert |
| DuroStar DS13000MXT | 13000 | Gas, Propane, Natural Gas | Strong whole-home support | Remote start, transfer switch-ready |
Westinghouse 13500 Peak Watt Tri-Fuel Generator
Best for larger homes and serious backup power, this model delivers 13,500 peak watts on gasoline, 12,500 on propane, and 10,000 peak watts on natural gas. It includes remote start with a key fob, a transfer switch-ready 30A outlet, and a 50A RV-ready outlet. The long-life 500cc Westinghouse engine features a cast iron sleeve and automatic shutdown for low oil and CO exposure. This unit suits buyers wanting a flexible tri-fuel option with robust runtime on a sizable fuel tank.
Who it’s best for: homeowners needing substantial surge capacity and remote starting for quick restoration after outages. Caution: natural gas performance is lower than gasoline, so plan for load management during gas-fueled operation.
Westinghouse 14500 Peak Watt Tri-Fuel Generator
Best for larger homes needing higher peak output, this model offers 14,500 peak watts on gasoline and 12,000 peak watts on natural gas. It shares the tri-fuel capability and long runtime on the 9.5-gallon tank. The unit is well-suited for extended outages where higher starting power is valuable for appliances and HVAC. It remains a strong option for those who want more headroom than the smaller Westinghouse model.
Who it’s best for: households with high power demands or cold climates requiring reliable big-load support. Caution: heavier and bulkier, which affects transport and storage considerations.
Generac 12,500 Starting Watt Tri-Fuel Generator
Best for dependable home backup with smart safety features, this Generac unit provides 9,500 running watts and 12,500 starting watts, with tri-fuel versatility. It includes COsense CO detection to help monitor air quality around the generator and protect occupants. The AVR helps stabilize voltage for sensitive equipment. It’s a solid pick for homes that need reliable power with protection features during outages.
Who it’s best for: buyers seeking integrated safety features and stable power with flexible fuel options. Caution: ensure adequate space for CO sensor considerations and exhaust ventilation in enclosed spaces.
DuroMax XP13000HXT Tri Fuel Generator
Best for storm preparedness and off-grid needs, this 13,000-watt tri-fuel model combines a 500cc OHV engine with CO Alert for safety. It runs on gasoline, propane, or natural gas, giving you fuel flexibility during outages or outdoor jobs. It’s a strong option for users who require CO protection and robust performance across fuels.
Who it’s best for: those prioritizing CO safety and fuel flexibility for prolonged outages. Caution: check noise and footprint, as higher-watt units can be louder and larger than compact models.
DuroStar DS13000MXT Tri Fuel Portable Generator
Best for whole-home power backup, this 13,000-watt tri-fuel generator provides a remote electric start and a transfer switch-ready outlet configuration. Its tri-fuel capability supports gasoline, propane, or natural gas usage. It’s a practical choice for users who want straightforward operation with a strong power panel for easy connections.
Who it’s best for: buyers needing a balance of power, convenience, and transfer-switch compatibility. Caution: ensure you have sufficient generator spacing and ventilation for safe operation indoors or in semi-enclosed spaces.
Buying Guide: How To Choose The Right Tri-Fuel Portable Generator
Fuel flexibility matters. If you expect outages to last days, prioritize larger fuel tanks and longer runtimes. If you’ll be powering critical devices, choose models with automatic voltage regulation and safety features like CO detection and low-oil shutdown. Consider starting methods—remote start is convenient for frequent use, while recoil or electric start works in power-scarce sites.
Key decision points include:
- Power needs: estimate startup and running watts for essential appliances, heating, cooling, and pumps.
- Fuel availability: assess which fuels are likely to be accessible in your area and during outages.
- Portability vs. capacity: larger units offer more power but are less portable; balance needs with storage space.
- Safety features: CO sensors, automatic shutoff, and proper outlet protection minimize risk.
- Transfer switch compatibility: ensure your home panel supports the generator’s outlets and connections.
Frequently Asked Questions
- What is tri-fuel operation?
Answer: Tri-fuel generators can run on gasoline, propane, and natural gas, giving you multiple fuel options during outages or remote work. - Why choose a natural gas option?
Answer: Natural gas can be more convenient for homes with a gas line and offers steady supply without refueling, though peak power on gas may be lower than gasoline. - How does CO detection help?
Answer: CO sensors monitor carbon monoxide levels and can shut off the generator to reduce exposure risks in occupied spaces. - Is remote start necessary?
Answer: Remote start is convenient for frequent starts and during cold weather, but not essential if a manual start is reliable in your location. - What maintenance should I perform?
Answer: Regular oil checks, air filter cleaning, spark plug inspection, and fuel system maintenance help ensure performance and safety. - How do I size a generator for my home?
Answer: List critical loads, sum their starting watts, then select a model with a comfortable margin above that total to handle surge.