The 13 best tri fuel generators of 2025

Perfect as a backup power source for larger homes or a dependable source of portable power

14,500 peak watts, 11,500 running watts (gasoline); 13,500 peak watts, 10,500 running watts (propane); 12,000 peak watts, 9,500 running watts (natural gas)

Runs for up to 19 hours on a 9.5 gal. fuel tank with built-in fuel gauge; up to 7 hours on a 20 lb. propane tank

Powered by a heavy duty 550cc 4-Stroke OHV Westinghouse Engine constructed with a durable cast iron sleeve

All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network

13500 Peak Watts, 10500 Running Watts (Gasoline); 12500 Peak Watts, 9500 Running Watts (Propane); 10000 Peak Watts, 8500 Running Watts (Natural Gas); Remote Start With Included Key Fob, Electric and Recoil Start; Up to 19 Hours of Run Time on a 9.5 Gallon Fuel Tank With Fuel Gauge

Features Two GFCI 120V 5–20R Standard Household Receptacle, One Transfer Switch Ready 120V L14-30R, and One RV Ready 120/240V 14–50R; All Outlets Have Rubber Covers for Added Safety

Powered by a Heavy Duty 500cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve With Automatic Low Oil and Carbon Monoxide (CO) Shutdown, and Digital Hour Meter

Plug-and-Play: Comes With a Remote Start Key Fob, 12V Battery Charger, Oil, and Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)

All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network

With 13,000 watts of power, the XP13000HXT Tri Fuel generator will keep your whole home running during a storm or power outage, while protecting your family from harmful fumes with CO Alert

Run your generator on gasoline, propane, or natural gas. With Tri Fuel, we offer the ultimate freedom and flexibility of fuel choice

Powerful 500cc OHV Engine: At the heart of this generator resides a robust DuroMax engine designed to provide you with the most power.

The XP13000HXT comes with a push button start, a front facing interface that allows you to change your fuel type in seconds, and a wide variety of outlets including a transfer switch-ready 50 amp outlet

Push Button Start and Remote Start: Turn on your generator with a simple push of a button, or use the remote to conveniently start your generator from a distance.

12500 Peak Watts, 9500 Running Watts (Gasoline); 11200 Peak Watts, 8500 Running Watts (Propane); 9500 Peak Watts, 7500 Running Watts (Natural Gas); Remote Start With Included Key Fob, Electric and Recoil Start; Up to 12 Hours of Run Time on a 6. 6 Gallon Fuel Tank With Fuel Gauge

Features Two GFCI 120V 5–20R Standard Household Receptacle, One Transfer Switch Ready 120V L14-30R, and One RV Ready 120/240V 14–50R; All Outlets Have Rubber Covers for Added Safety

Powered by a Heavy Duty 457cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve With Automatic Low Oil and Carbon Monoxide (CO) Shutdown, and Digital Hour Meter

Plug-and-Play: Comes With a Remote Start Key Fob, 12V Battery Charger, Oil, and Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)

All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network

Switch between gasoline (14500 surge watts, 11500 running watts), propane (12500 surge watts, 10300 running watts), and natural gas (10500 surge watts, 8750 running watts) with a simple turn of the selection dial

Operates at 120V and 240V, making it perfect for transfer switches and emergency backup

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 500c 4-stroke OHV engine with the turn of a key, while the 8.2-gallon tank provides up to 12 hours of half-load runtime

Includes four 120V 5-20R outlet, a 120V/240V transfer-switch-ready NEMA L14-30R outlet, a 120V/240V transfer-switch-ready NEMA 14-50R outlet, a 12V DC automotive outlet, a bottle of oil, a 6-foot LPG connection hose, an NG quick-connect adapter, and a three-year limited warranty

14500 Running Watts, 18000 Peak Watts (Gasoline); 13000 Running Watts, 16000 Peak Watts (Propane); 11600 Running Watts, 14400 Peak Watts (Natural Gas); Electric and Remote Start with Included Key Fob; Up to 12 Hours of Run Time on a 10.57 Gallon Fuel Tank with Fuel Gauge

Features Two GFCI 120V 5–20R Standard Household Receptacle, One Transfer Switch Ready 120V L14-30R, and One RV Ready 120/240V 14–50R; All Outlets Have Rubber Covers for Added Safety

Powered by a Heavy Duty 713cc V-Twin 4-Stroke OVH Westinghouse Engine Featuring a Long-Lasting Cast Iron Sleeve with Automatic Low Oil and Carbon Monoxide (CO) Shutdown, and Digital Hour Meter

Plug-and-Play: Comes with a Remote Start Key Fob, 12V Battery Charger, Oil, and Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)

All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network

Your 4000-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

Power up the 224cc Champion engine with the handy rocker switch, battery included

Track voltage, frequency, session run time, and total run time, plus the UL-recognized sensor uses an LED to indicate CO shutoff or fault

Gasoline: 5000 starting watts and 4000 running watts, propane: 4500 starting watts and 3600 running watts, natural gas: 4050 starting watts and 3240 running watts and engine oil is included

Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts

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

With 13,000 watts of power, the XP13000EH Dual Fuel generator will keep your whole home running during a storm or power outage

DuroMax is the industry leader in Dual Fuel portable generator technology, with a full assortment ranging from digital inverters to generators that can power your entire home

At the core of all our products resides a robust DuroMax engine. Designed for Power. Designed to Last

The XP13000EH comes with a push button start, a front facing interface that allows you to change your fuel type in seconds, and a wide variety of outlets (including a transfer switch-ready 50 amp outlet)

Constructed with a heavy-duty all metal frame and power panel - No plastic parts

Built to withstand severe weather and years of heavy wear-and-tear

Power wherever and whenever you need it - No-flat tires roll easily over any terrain

100% Copper Windings - Unlike aluminum, copper is a superior heat conductor that extends the life of your generator

Stay powered with our EH line of portable generators

DuroMax portable generators are designed to be mobile and versatile, with the ability to provide power whenever and wherever you need it. Unlike traditional standby generators that are large, expensive, yet only serve one purpose, DuroMax generators will power you whether you’re at home, on an RV trip, or at the jobsite

Durable Protection: The Generac GP9500 features covered outlets for added protection against harsh environments and rugged conditions, ensuring powerful performance for emergency backup and recreational use

Convenient Electric Start: Say goodbye to manual cranking. The electric start feature, with the included battery, ensures easy and hassle-free operation, so you're always prepared for unexpected outages

Extended Runtime: The GP8000E boasts a long-lasting OHV engine and a large-capacity steel fuel tank with a built-in fuel gauge. Enjoy up to 9.5 hours of runtime at 50% load with gasoline, ensuring you have power when you need it most

Fuel Switching Convenience: Whether you are using gas, propane or natural gas, using the fuel source selector allows the unit to switch seamlessly between fuel types to prevent unit shutdown. COsense Technology stops, alerts, saves, powerful

Built for Durability: Designed to thrive in rough environments, this generator features covered outlets for added protection, a rugged steel-tube cradle for strength, and heavy-duty, never-flat wheels for easy transportation

9500 Running Watts and 12500 Peak Watts (Gasoline); 8500 Running Watts, 11200 Peak Watts (Propane); Remote Start With Included Key Fob, Electric and Recoil Start; Up to 12 Hours of Run Time on a 6. 6 Gallon Fuel Tank With Fuel Gauge

Features Two GFCI 120V 5–20R Standard Household Receptacle, One Transfer Switch Ready 120V L14-30R, and One RV Ready 120/240V 14–50R; All Outlets Have Rubber Covers for Added Safety

Powered by a Heavy Duty 457cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve With Automatic Low Oil Shutdown and Digital Hour Meter. VFT display gives you real time updates with the voltage output, frequency, and lifetime hours

Plug-and-Play: Comes With a Remote Start Key Fob, 12V Battery Charger, Oil, an Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)

All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network

Dual Fuel for Maximum Flexibility - This versatile generator supports gasoline (4500W peak, 3500W rated) and propane(4050W peak, 3150W rated), offering cost-effective power. Ideal for home backup, outdoor RV camping activities, construction sites, or emergencies, it delivers reliable performance for diverse needs. A flexible, efficient energy solution!

Seamless Fuel Switching – Erayak's gas priority system auto-switches to gasoline when gas runs out, eliminating shutdowns for uninterrupted power. With dual-fuel capability, enjoy extended runtime for reliable, long-lasting energy.

Portable & Compact - Weighing only 54 pounds and featuring a sleek design measuring just 19.88 x 16.93 x 20.25 inches, this inverter generator is one of the most compact and portable models on the market. Its lightweight build and space-saving size make it incredibly easy to store and transport.

Clean & Reliable Power for Home & RV – The Erayak 4500PD inverter generator delivers 4,500W peak and 3,500W running power with pure sine wave technology (THD 0.2%~1.2%), ensuring safe operation for sensitive electronics. Ideal for home backup, RVs, trucks, campers, and outdoor adventures, it features two 120V/20A outlets, a 30A (L5-30P) RV outlet, USB-A (5V 2.1A), and 18W USB-C to meet all your power needs.

Super Quiet Operation – Running at just 58 dBA from 23 feet at quarter load, the Erayak 4500PD ensures peaceful camping, tailgating, and home backup without disturbing your surroundings. Enjoy reliable power without upsetting neighbors or disrupting quiet environments.

ESC - Fuel Saving – The Electronic Speed Control (ESC) Mode optimizes engine performance for maximum runtime. A full 2.25-gallon gas tank lasts up to 16 hours at 25% load, while connecting to a propane extends runtime beyond 20+ hours, ensuring overnight power without refueling. At full load, fuel consumption is 0.561 gallons (2.125L) per hour on gasoline.

CO Sensor - Built-in CO detection shuts down the generator when carbon monoxide levels are unsafe. Circuit breaker protection for all outlets ensures safe operation. A CO switch is configured to allow the user to manually turn off depending on the environment.

Erayak Support - Includes free parts (oil kettle, mainance tool kit,30A conversion plug TT-30R,propane connecting pipe).Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts.