Best Tri-Fuel Generators for Propane and Natural Gas Backups
Answering the search for reliable tri-fuel generators, these models run on gasoline, propane, or natural gas. They’re best suited for homeowners needing flexible fuel options during outages, contractors needing portable power, and families seeking extended runtime with switch-ready outlets. Below is a quick comparison of five top options to help buyers pick the right fit for home backup or remote work sites.
| Product | Fuel Options | Peak / Running Watts | Best For |
|---|---|---|---|
| Gas, Propane, Natural Gas | 14,500 / 11,500 (gas); 13,500 / 10,500 (propane); 12,000 / 9,500 (natural gas) | Large homes, long runtimes | |
| Gas, Propane, Natural Gas | 13,000 | Flexible fuel during outages | |
| Gas, Propane, Natural Gas | 13,000 | Whole-home backing with CO alert | |
| Gas, Propane, Natural Gas | 14,500 (gas); 12,500 (propane); 10,500 (natural gas) | Transfer-switch readiness with CO watchdog | |
| Gas, Propane, Natural Gas | 9,500 running (gas); 12,500 starting | Smart alternative for multi-fuel needs |
Westinghouse 14500 Peak Watt Tri-Fuel
Best for larger homes needing significant peak power with flexible fuel. The 14500 peak watts (gas) and 11,500 running watts offer robust load capability. Selection between natural gas, propane, and gasoline gives builders and homeowners options during outages or outdoor events. Limitations include longer run time trade-offs on certain fuels and higher initial footprint.
Best for: homeowners requiring strong uninterrupted power during extended outages; those with access to multiple fuel sources.
DuroMax XP13000HXT Tri Fuel Generator
Best for flexible fuel choices with CO alert for safety. The 13,000-watt output provides solid backup for mid-size homes. Its Tri Fuel design supports gasoline, propane, or natural gas, offering resilience during outages. A limitation is that multi-fuel setups can require regular maintenance to keep fuel lines and carburetors in peak condition.
Best for: households prioritizing fuel choice and safety features during storms or outages.
DuroStar DS13000MXT Tri Fuel Generator
Best for whole-home power with easy control. With 13,000 watts and CO Alert, this model is designed for reliable outage power and transfer-switch readiness. The Tri Fuel capability means you can switch fuels to suit availability. A potential drawback is the weight and size, which can affect portability.
Best for: households seeking a serious home backup with straightforward fuel switching and transfer-switch readiness.
WEN 14,500-Watt Tri-Fuel Generator
Best for transfer-switch readiness with built-in safety features. The TF-1450X offers gasoline, propane, and natural gas options with a flexible selection dial. It includes a CO watchdog to protect occupants. Limitation: wattage varies by fuel type, so plan loads accordingly for peak demands.
Best for: users needing a versatile, CO-safety-equipped generator with transfer-switch compatibility.
Westinghouse 12500 Peak Watt Tri-Fuel
Best for balanced power and fuel flexibility. This unit delivers 9,500 running watts on gasoline and reduced peak outputs for propane and natural gas, with remote start and transfer-switch readiness. A caveat is that the smaller fuel tank compared to some peers can limit runtime if not managed carefully.
Best for: buyers who want reliable tri-fuel power with remote start and multiple outlet options for home backup.
Buying Guide: Key Considerations for Tri-Fuel Generators
- Fuel flexibility: Evaluate the fuel options (gasoline, propane, natural gas) and how it fits your fuel availability and storage.
- Power needs: Estimate your essential loads and compare peak and running watts across fuels to avoid overloading circuits.
- Outlets and transfer readiness: Confirm the presence of transfer switch-ready outlets and RV or 30A/50A options for home backup.
- Safety features: Look for CO detectors or shutdown, low-oil sensors, and rubber-covered outlets for weather resistance.
- Run time and tank size: Consider fuel tank capacity and expected runtime at typical loads to ensure meets outage expectations.
- Portability vs. footprint: Larger tri-fuel units offer more power but require space; evaluate whether wheeled designs fit your setup.
- Maintenance and service: Check engine type, oil monitoring, and ease of fueling for long-term reliability.
Frequently Asked Questions
- What is a tri-fuel generator?
A tri-fuel generator can run on gasoline, propane, and natural gas, offering fuel flexibility during outages or remote work.
- Which fuel is most economical for tri-fuel generators?
Propane or natural gas can be cheaper long-term in some areas, but fuel availability and storage impact overall cost.
- Do these generators require a transfer switch?
Many models are transfer-switch ready, simplifying connection to home electrical systems during outages.
- Is CO detection standard on tri-fuel units?
Several models include CO alerts or sensors to protect occupants, but verify specific features per model.
- How do I choose the right wattage?
Calculate essential loads (refrigerator, sump pump, heating, lighting) and compare peak and running watts for each fuel.
- Are tri-fuel generators suitable for RV use?
Some models offer RV-ready outlets; verify compatibility with your RV power inlet before purchase.