May 17, 2026
10 Best Tri Fuel Inverter Generators of 2026
Last Updated - May 17, 2026
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Up to 22% off
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Westinghouse
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Westinghouse 8200 Peak Watt Tri-Fuel Portable Inverter Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, Natural Gas, Low THD, Safe for Electronics, Parallel Capable, CO Sensor
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Why We Love It
- INVERTER BENEFITS, HOME BACKUP POWER: The Westinghouse iGen8200TFc is a tri fuel generator with all the benefits of an inverter, but also with home backup power and a 50A outlet; Gasoline: 6600 running/8200 peak watts, Propane: 5940 running/7380 peak watts, Natural Gas: 5280 running/6560 peak watts
- SAVE FUEL, SAVE MONEY, LESS NOISE: Inverter technology adjusts engine speed to meet power demand, significantly cutting fuel use compared to traditional generators. That's less refills and fuel runssaving time, money, and hassle. It's also much quieter than open frames, around 60 dBA at 25% load
- TRANSFER SWITCH OR INTERLOCK KIT READY: One 120/240V 1450R 50A outlet for home backup can run your air conditioner, refrigerator, sump pump, and moreall at once; One RV ready 120V TT-30R 30A outlet; One GFCI 120V 520R 20A standard duplex outlet
- LOW THD AND COPPER WINDINGS: With less than 3% THD, it's safe to power electronics like phones, computers and TVs to stay connected during outages, or on jobsites and campsites. Copper windings help the unit make cleaner power, run cooler and last longer
- DURABLE ENGINE WITH SAFETY BUILT-IN: Powered by a heavy duty 298 cc Westinghouse 4-stroke OHV engine with a cast iron sleeve; up to 17 hours of run time on a 3.9 gallon fuel tank at 25% load with automatic low oil shutdown and carbon monoxide (CO) sensor
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WEN
WEN 13,000-Watt 120V/240V Tri-Fuel Inverter Generator with Quiet 550cc Engine, Electric Start, Wheel Kit, and CO Watchdog, Gas, Propane, and Natural Gas Powered (TF1300iX)
5% Off
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Main Highlights
- Switch between gasoline (13000 surge, 10500 running watts), propane (11250 surge, 9000 running watts), and natural gas (10000 surge, 8000 running watts) with a simple press of a switch
- Quiet, bonded-neutral 120V/240V configuration is perfect for transfer switches, emergency backup, or Level 2 charging for battery and hybrid electric vehicles
- The WEN Watchdog CO Shutdown Sensor helps protect both you and your family by automatically turning off the generator if dangerous levels of carbon monoxide are detected
- Electric start powers the 550cc 4-stroke OHV engine with the press of a button, while the 7.1-gallon tank provides up to 7.7 hours of half-load runtime
- Includes two 120V 5-20R outlets, a 120V/240V transfer-switch- or EV-ready 14-50R outlet, a 120V transfer-switch-ready L5-30R outlet, a 120V 10-50R outlet, a 12V DC outlet, two USB outlets, a 5-foot LPG connection hose, a quick-connect adapter, and a three-year limited warranty
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Our Rankings
Westinghouse
Westinghouse 12000 Peak Watt Tri-Fuel Portable Inverter Generator, Remote Start, Transfer Switch Ready, Gas/Propane/Natural Gas Powered, Low THD, Safe for Electronics, Parallel Capable, CO Sensor
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Main Highlights
- HOME BACKUP POWER, 3% THD: The Westinghouse iGen12000TFc tri fuel inverter generator provides whole home backup power that's safe for sensitive electronics; It also has a 50A outlet; Gasoline: 12,000W peak/9,000W running; Propane: 11,000W peak/8,100W running; Natural gas: 9,800W peak/7,200W running
- POWERFUL ENGINE, VERY QUIET OPERATION: Eco Mode, insulation and mufflers keep this generator neighborhood friendly with as low as 64 dBA; A heavy duty 457cc Westinghouse 4-Stroke OHV engine runs up to 19 hours at 25% load on a 7.9 gallon fuel tank; Low oil shutdown and CO sensor included
- SAVE UP TO 50% IN FUEL COSTS: Inverter technology matches engine speed to power demand to cut fuel consumption in half versus traditional generatorsthat'sless fuel and fewer refills, especially with the large7.9 gallongas tank. And inverters need less maintenance, saving time,hassleand money
- TRANSFER SWITCH OR INTERLOCK KIT READY: Features one 120/240V 1450R 50A outlet for home or RV and one 120V/240V L14-30R 30A twist lock, both outlets aretransfer switch or interlock kit ready for home backup; Includes one GFCI 120V 520R 20A duplex household outlet; Parallel ready to double output
- LED DATA CENTER: Digital display shows fuel level, power output, remaining run time, voltage output and lifetime hoursso you stay updated in real time; Includes a remote start key fob, battery, 12V battery charger, propane regulator kit, oil, funnel and tool kit to get you going out of the box
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Our Rankings
GENMAX
GENMAX 6250w Tri-Fuel Silent Inverter Generator(2026Model)Features 2-Wire Auto Start/Stop,bluetooth APP Control,CO Sensor,Digital Display&50A Outlet-Ideal for Home Backup&Camping Outdoor,EPA Compliant
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Main Highlights
- Tri-Fuel CapabilityThe GM6250iET is equipped with a versatile tri-fuel power system that allows seamless switching between gasoline, propane (LPG), and natural gas (NG), ensuring stable operation in various environments. The dedicated fuel-source selector enables quick and easy switching, while the independent LPG/NG inlet ensures safe and reliable fuel deliveryideal for home backup, RV travel, and jobsite applications.
- High Output Performance for Gasoline FuelGM6250iET delivers efficient and powerful power output with gasoline fuel. The unit can stably maintain 5500W running watts and 6250W starting watts, easily driving high-demand devices such as power tools, air conditioners, and refrigerators. Its inverter technology combined with ECO idle mode can automatically adjust engine speed according to load, greatly improving fuel efficiency, with a runtime of up to 10 hours at 25% load and THD3%, making it ideal for sensitive electronic products such as laptops and TVs.
- Smart Digital Control PanelThe user-friendly control panel offers four convenient starting methods: electric start, remote key fob start, Bluetooth App start, 2-wire auto gen start, and recoil start. It includes two 120V 20A 5-20R outlet, one 120V 30A L5-30R outlet, one 120/240V 50A 14-50R outlet, a 5V USB-A/C port, and a battery charging port. The integrated digital display center provides real-time monitoring of wattage load, runtime hours, voltage, frequency, fuel level, oil alerts, CO warnings, and Bluetooth statusdelivering an intuitive and safer operating experience.
- Ultra-Quiet & Portable for Easy OperationEquipped with an advanced forced air cooling system and low-speed ECO mode, it can effectively reduce engine noise, with the noise level only about 66dB under 25% load, suitable for noise-sensitive scenarios such as home emergencies, camping and outdoor work; it is fitted with a durable frame, wheel kit and foldable handle for easy equipment transportation and quick deployment; optimized cooling and fuel efficiency can ensure the extension of the equipment's continuous operation time.
- Perfect Protection DevicesThe whole machine is equipped with perfect protection devices, such as overload protection, thermal protection, overvoltage protection, undervoltage protection, overcurrent protection, short circuit protection, overspeed protection, etc., which greatly facilitates the user's operation and improves the reliability/safety of the whole machine.
- GENMAX SupportIncludes 3-year warranty with FREE lifetime technical support from experts.
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Our Rankings
Champion Power Equipment
Champion Power Equipment 8500-Watt Wireless Remote Start Ultra Quiet Tri Fuel RV Ready Portable Inverter Generator with StartLINK, Free 3-Year Warranty
22% Off
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Main Highlights
- Operates on natural gas, propane, or gasoline, with hoses included for natural gas (25 ft.) and propane (6.6 ft.) so its ready to run on any fuel right out of the box.
- Connects your generator to Energy Storage Systems or Automatic Transfer Switches, automating start/stop and enabling 120V AC battery charging.
- Enjoy the simplicity and convenience of starting your generator from up to 80 ft. away using the wireless remote key fob, or the push-button electric start when near the unit.
- With a run time of 13 hr. and operating at 64 dB(A), this generator delivers reliable power with low noise, making it perfect for RVs and home backup.
- Backed by a 3-year limited warranty, FREE lifetime technical support from dedicated experts, and access to a network of service centers across the country.
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Our Rankings
WEN
WEN 10,500-Watt 120V/240V Tri-Fuel Inverter Generator with Quiet 457cc Engine, Electric Start, Wheel Kit, and CO Watchdog, Gas, Propane, and Natural Gas Powered (TF1050iX)
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Main Highlights
- Switch between gasoline (10500 surge, 8550 running watts), propane (9450 surge, 8550 running watts), and natural gas (8500 surge, 7700 running watts) with a simple press of a switch
- Bonded-neutral 120V/240V configuration is perfect for transfer switches, emergency backup, or Level 2 charging for battery and hybrid electric vehicles
- The WEN Watchdog CO Shutdown Sensor helps protect both you and your family by automatically turning off the generator if dangerous levels of carbon monoxide are detected
- Closed-frame design provides quieter operation compared to traditional open-frame generators
- Includes two 120V 5-20R outlets, a 120V/240V transfer-switch- or EV-ready 14-50R outlet, a 120V/240V transfer-switch-ready L14-30R outlet, an onboard battery charger port, two USB outlets, a 6-foot LPG connection hose, a battery charger, a quick-connect adapter, and a three-year limited warranty
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Our Rankings
Gidrox
Gidrox 11000W Tri-Fuel Inverter Generator (Gas, Propane, Natural Gas), Quiet, 50A Outlet, ATS Ready, Low THD Safe for Electronics, Remote Start, CO Sensor, Ideal for RV & Whole-Home Backup Power
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Main Highlights
- WHOLE-HOME INVERTER POWER & SENSITIVE SAFETY Delivers a massive 11,000W peak output with advanced pure sine wave technology (<3% THD). Gidrox provides utility-grade power specifically engineered to be safe for sensitive electronics, ranging from 5-ton central AC units to high-end MacBooks and medical equipment. The oversized 8.7-gallon tank ensures up to 21 hours of reliable backup during extended outages.
- TRI-FUEL FREEDOM: READY OUT OF THE BOX Enjoy the ultimate flexibility of Gasoline, Propane (LPG), and Natural Gas (NG). Our innovative dial-start system allows for effortless fuel switching in seconds. We include a high-quality NG & LPG Hose Kit ($120 Value) right in the box, ensuring you have the necessary connections for immediate emergency power without extra trips to the hardware store.
- WHISPER-QUIET OPERATION & ADVANCED CO PROTECTION Experience industrial-grade performance at a whisper-quiet 62-65dBquieter than a normal conversation. Engineered with a fully enclosed and ECO mode for maximum efficiency. The CO sensor provides 24/7 monitoring, automatically shutting down the unit if dangerous carbon monoxide levels are detected.
- THE ULTIMATE POWER HUB: ATS, RV & EV READY Equipped with a dedicated ATS port for seamless automatic transfer switch integration. Features a heavy-duty 50A (14-50R) outlet designed for luxury RVs, plus a 30A (L14-30R) 240V outlet for whole-house backup. All outlets are protected by waterproof rubber covers and GFCI safety.
- EFFORTLESS START & PROFESSIONAL 3-YEAR WARRANTY Forget the struggle of pull-starts. Our push-button electric start (with remote and manual backup) ensures reliable power-up in seconds. We stand behind our engineering with a 3-Year Limited Warranty. Invest in Gidrox for long-term peace of mind and professional-grade reliability.
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Our Rankings
Champion Power Equipment
Champion Power Equipment 9000-Watt Electric Start Tri Fuel Home Backup Portable Open Frame Inverter Generator with Quiet Technology and CO Shield
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Main Highlights
- Your 9000-watt portable generator operates on natural gas, propane, or gasoline, plus natural gas and propane hoses are included so the unit is ready to run on any fuel right out of the box
- Trust the reliable 420cc Champion engine with its battery-included electric start featuring a reliable toggle switch, a built-in Cold Start Technology for easy starts in cold weather, plus features CO Shield carbon monoxide auto shutoff system
- 50% quieter (72 dBA) and 20% lighter than a traditional 7250-watt generator, plus fuel-saving Economy Mode, and Intelligauge to monitor voltage, frequency and operating hours
- Gasoline: 9000 starting watts and 7250 running watts, propane: 9000 starting watts and 6525 running watts, natural gas: 9000 starting watts and 5875 running watts and engine oil is included
- Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts
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Our Rankings
WEN
WEN 6800-Watt Dual Fuel RV-Ready Electric Start Portable Inverter Generator with Fuel Shut Off and CO Watchdog for Electric Vehicle Backup (DF680iX)
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Main Highlights
- 224cc dual-fuel engine runs on both gasoline (6800 surge watts, 5100 rated watts) and propane (6000 surge watts, 4500 rated watts)
- Bonded-neutral 240V configuration provides low-power Level 2 charging for battery and hybrid electric vehicles
- The WEN Watchdog CO Shutdown Sensor helps protect both you and your family by automatically turning off the generator if dangerous levels of carbon monoxide are detected
- Fuel shutoff maximizes the generators lifespan by using up the remaining fuel in the carburetor before shutting down
- Includes fuel shut-off to help limit maintenance, onboard wheels, a telescoping pull handle, one L14-30R 120V/240V receptacle, two three-prong 120V receptacles, one TT-30R RV receptacle, one 12V DC receptacle, two 5V USB ports, a voltage selector switch, a tool-free LPG quick-connector, a six-foot-long LPG regulator hose, and a three-year warranty
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Our Rankings
GENMAX
GENMAX 10500 Peak Watt Tri Fuel Open Frame Inverter Generator,with ATS,Quiet Technology,CO Sensor,digital display and 50A,Ideal for Home backup,contruction site and RV Camping (GM10500XiT)
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Main Highlights
- Compact Powerhouse, Versatile Adaptation:The GM10500XiT Rated running power of 7800W and a peak power of 10500W make it ready to respond to various power demands. It is a revolutionary new generation inverter generator that redefines portability with its compact and lightweight design. Perfect for home backup, Tri-Fuel With THD 3%, it ensures stable power supply for delicate devices like smartphones and laptops.
- Energy Efficiency Leader, Green Innovation: Our extensive research in energy-saving technology has led to significant optimizations. By improving the muffler, carburetor, and intake system, we have achieved a breakthrough in engine air intake efficiency, allowing for optimal fuel-air mixing. Revolutionary enhancements in the combustion chamber ensure complete combustion, resulting in less exhaust emissions. With rigorous testing, the engine consumes less than 370 grams of fuel and under 5 grams of oil per kilowatt-hour, showcasing exceptional fuel economy. A full tank can run for up to 13.5 hours at 25% load, exemplifying energy efficiency and long-lasting performance.
- Multi-Fuel Capability, Effortless Start-Up: Designed to accommodate different environments and user preferences, the GM10500XiT supports flexible switching between gasoline,LPG, and natural gas. Additionally, it features convenient start-up options including one-button start, remote start, and recoil-start, ensuring quick power supply initiation under any conditions. Simplified operation allows users to take control effortlessly.
- Intelligent Control Panel, 2 wire Start: The generator's control panel combines multiple functions with cutting-edge technology and user-friendly design. Direct current outputs paired with USB ports meet the charging needs of various digital devices. Multi-functional digital displays provide real-time operational parameters for easy monitoring. Features such as battery charging port, 2 wire automatic start/stop to charge solar batteries, and parallel operation capabilities offer intelligent solutions for complex power scenarios. The CO alarm function ensures safety, while voltage switching accommodates different electrical standards for seamless operation.
- Robust Durability, Reliable Performance: Built with high-quality materials, the GM10500XiT promises robust durability and reliable performance under demanding conditions. Its advanced cooling system and protective features keep the unit running efficiently, extending its lifespan. Whether for outdoor adventures or emergency situations, this generator stands as a trustworthy companion, providing peace of mind and consistent power delivery when you
- GENMAX SupportFREE lifetime technical support from experts.