Tri-fuel inverter generators can run on gasoline, propane, or natural gas, giving you more fuel options during outages and for off-grid use. My best overall pick is the Westinghouse iGen8200TFc, which offers a more manageable output class than the lineup’s largest machines. The GENMAX GM10500iETC stands out for its remote start and ATS support, while the GENMAX GM6250iET is a more compact choice for buyers with lighter loads. The main tradeoffs are output versus size and noise, plus how much convenience you want from remote controls and automatic-start features. Read on for the full comparison and guidance on matching generator capacity to your appliances.
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Key Takeaways
- The iGen8200TFc is my best overall pick because its listed 8,200 peak watts put it in a more manageable class than the 10,000- to 14,500-watt options.
- The lineup splits between inverter models and conventional portable generators. Check the exact model type rather than assuming every tri-fuel generator offers inverter-style power.
- Automatic and remote-start features vary sharply. The GM10500iETC lists ATS support, while several other picks focus on remote start or app control instead.
- Higher wattage does not mean the same output on every fuel. Compare each model’s fuel-specific running watts before planning to power large loads.
- Compact choices come with capacity limits. The GM6250iET is the smallest listed option, while models such as the WGen11500TFc and GENMAX 13,500W target larger backup loads.
| GENMAX GM8000iETC 8000W Tri-Fuel Inverter Generator with Bluetooth App Control and CO Sensor | ![]() | Best for Flexible Starting and Fuel Choices | Fuel types: Gasoline, propane, natural gas | Gasoline output: 8,000 surge watts; 6,000 running watts | Propane output: 7,250 surge watts; 5,500 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse iGen8200TFc Tri-Fuel Portable Inverter Generator, 8200 Peak Watts | ![]() | Best for Runtime in a Compact Backup Package | Fuel types: Gasoline, propane, natural gas | Gasoline output: 8,200 peak watts; 6,600 running watts | Propane output: 7,380 peak watts; 5,940 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen10500TFc Tri-Fuel Portable Generator with Remote Electric Start and CO Sensor | ![]() | Best for High-Draw Home Backup | Fuel types: Gasoline, propane, natural gas | Output: 13,500 peak watts; 10,500 running watts | Engine: 500 cc 4-stroke OHV | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen11500TFc 14,500-Watt Tri-Fuel Portable Generator with Remote Electric Start and CO Sensor | ![]() | Best for Maximum Listed Running Output | Fuel types: Gasoline, propane, natural gas | Output: 14,500 starting watts; 11,500 running watts | Engine: 550 cc 4-stroke OHV | VIEW LATEST PRICE | See Our Full Breakdown |
| GENMAX GM10500XiT 10,500-Watt Tri-Fuel Open-Frame Inverter Generator | ![]() | Best Open-Frame Inverter for Automatic Start Integration | Fuel types: Gasoline, propane, natural gas | Output: 10,500 peak watts; 7,800 running watts | Engine type: 4-stroke | VIEW LATEST PRICE | See Our Full Breakdown |
| GENMAX GM10500iETC Tri-Fuel Inverter Generator, 10500-Watt, 458cc, with Remote Start and ATS | ![]() | Best for ATS-Ready Home Backup | Gasoline output: 10,500 starting watts; 8,500 running watts | Fuel types: Gasoline, propane, natural gas | Engine: 458cc, 4-stroke | VIEW LATEST PRICE | See Our Full Breakdown |
| GENMAX 13,500W Tri-Fuel Inverter Generator with Bluetooth, CO Sensor, and Auto-Start | ![]() | Best for Maximum Inverter Output | Peak output: 13,500W gasoline; 12,500W propane; 10,500W natural gas | Running output: 11,500W gasoline; 10,500W propane; 9,500W natural gas | Fuel types: Gasoline, propane, natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse iGen12000TFc 12,000-Watt Tri-Fuel Portable Inverter Generator | ![]() | Best for Long Light-Load Runtime | Gasoline output: 12,000 peak watts; 9,000 running watts | Propane output: 11,000 peak watts; 8,100 running watts | Natural gas output: 9,800 peak watts; 7,200 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| Champion 11,000-Watt Tri-Fuel Portable Inverter Generator with Remote Start | ![]() | Best for Remote Operation | Starting watts: 11,000W | Running watts: 9,000W gasoline; 8,100W propane; 7,290W natural gas | Fuel types: Gasoline, propane, natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Generac GP9500E Tri-Fuel Portable Generator with Electric Start | ![]() | Best for Straightforward High-Output Backup | Gasoline output: 12,500 starting watts; 9,500 running watts | Fuel types: Gasoline, liquid propane, natural gas | Engine: 500cc Generac OHV | VIEW LATEST PRICE | See Our Full Breakdown |
| Champion 10,000-Watt Tri-Fuel Electric-Start Open-Frame Inverter Generator | ![]() | Best for Long Gasoline Runtime | Fuel types: Gasoline, propane, natural gas | Starting wattage: 10,000 watts | Running wattage on gasoline: 7,750 watts | VIEW LATEST PRICE | See Our Full Breakdown |
| DuroMax XP11000iHT 11,000-Watt Tri-Fuel Portable Inverter Generator | ![]() | Best for Remote Starting | Fuel types: Gasoline, propane, natural gas | Peak wattage: 11,000 watts | Running wattage: 9,000 watts | VIEW LATEST PRICE | See Our Full Breakdown |
| WEN 13,000-Watt Tri-Fuel Inverter Generator with Electric Start and CO Shutdown Sensor (TF1300iX) | ![]() | Best for High Output and Clean Power | Fuel types: Gasoline, propane, natural gas | Maximum surge output: 13,000 watts on gasoline; 11,250 on propane; 10,000 on natural gas | Running output: 10,500 watts on gasoline; 9,000 on propane; 8,000 on natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| GENMAX GM6250iET 6250W Tri-Fuel Inverter Generator with Remote and Bluetooth App Control | ![]() | Best Compact, Feature-Rich Pick | Fuel types: Gasoline, propane, natural gas | Starting wattage: 6,250 watts | Running wattage: 5,500 watts | VIEW LATEST PRICE | See Our Full Breakdown |
| tri fuel inverter generator | Fuel types | Engine | Runtime |
|---|---|---|---|
| GENMAX GM8000iETC 8000W Tri-Fu | Gasoline, propane, natural gas | 312 cc 4-stroke OHV | — |
| Westinghouse iGen8200TFc Tri-F | Gasoline, propane, natural gas | 298 cc 4-stroke OHV | Up to 17 hours at 25% load |
| Westinghouse WGen10500TFc Tri- | Gasoline, propane, natural gas | 500 cc 4-stroke OHV | Up to 19 hours at 25% load |
| Westinghouse WGen11500TFc 14,5 | Gasoline, propane, natural gas | 550 cc 4-stroke OHV | — |
| GENMAX GM10500XiT 10,500-Watt | Gasoline, propane, natural gas | — | Up to 13.5 hours at 25% load |
| GENMAX GM10500iETC Tri-Fuel In | Gasoline, propane, natural gas | 458cc, 4-stroke | Up to 14 hours |
| GENMAX 13,500W Tri-Fuel Invert | Gasoline, propane, natural gas | 550cc, 4-stroke OHV | Up to 11.2 hours |
| Westinghouse iGen12000TFc 12,0 | — | 457cc, 4-stroke OHV | Up to 19 hours at 25% load on gasoline |
| Champion 11,000-Watt Tri-Fuel | Gasoline, propane, natural gas | 459cc single-cylinder OHV | Up to 15 hours at 25% load on gasoline |
| Generac GP9500E Tri-Fuel Porta | Gasoline, liquid propane, natural gas | 500cc Generac OHV | Up to 9.5 hours at 50% load; up to 14 hours at 25% load on gasoline |
| Champion 10,000-Watt Tri-Fuel | Gasoline, propane, natural gas | 459cc OHV | Up to 15 hours at 25% load on gasoline |
| DuroMax XP11000iHT 11,000-Watt | Gasoline, propane, natural gas | 459cc 4-stroke OHV | — |
| WEN 13,000-Watt Tri-Fuel Inver | Gasoline, propane, natural gas | 550cc 4-stroke OHV | Up to 7.7 hours at half load on gasoline |
| GENMAX GM6250iET 6250W Tri-Fue | Gasoline, propane, natural gas | — | Up to 10 hours at 25% load |
More Details on Our Top Picks
GENMAX GM8000iETC 8000W Tri-Fuel Inverter Generator with Bluetooth App Control and CO Sensor
The GM8000iETC is the most flexible pick here for buyers who want to choose not only a fuel, but also how the generator starts. Its gasoline, propane, and natural gas support is paired with electric, remote, app, recoil, and two-wire automatic start, giving it more control options than the Westinghouse iGen8200TFc, which offers remote and electric start. The tradeoff is output: gasoline running capacity is 6,000 watts, below the iGen8200TFc’s 6,600 watts, and the advertised 8,000 watts is surge power. Low THD and a 120/240V outlet make it a capable choice for household circuits and sensitive electronics. I’d favor it for buyers who value app-based or automatic starting more than maximum running watts; its portable-generator size still won’t make it effortless to move.
Pros:- Runs on gasoline, propane, or natural gas
- Five starting methods, including Bluetooth app and two-wire auto-start
- THD of 3% or less suits sensitive electronics
- Includes a CO sensor and digital display
Cons:- Gasoline running output is 6,000 watts, lower than the Westinghouse iGen8200TFc’s 6,600 watts
- The 8,000-watt figure is surge output, not continuous capacity
- Fuel-powered equipment of this size can be cumbersome to relocate
Best for: Home backup buyers who want three fuel options and app, remote, or two-wire automatic starting for flexible operation.
Not ideal for: Buyers who need the highest running output in this size range or expect to move a generator frequently without help.
- Fuel types:Gasoline, propane, natural gas
- Gasoline output:8,000 surge watts; 6,000 running watts
- Propane output:7,250 surge watts; 5,500 running watts
- Natural gas output:6,500 surge watts; 4,800 running watts
- Engine:312 cc 4-stroke OHV
- Total harmonic distortion:≤3%
- Starting methods:Electric, remote key fob, Bluetooth app, recoil, 2-wire auto-start
- Outlets:120V/240V 14-50R, 120V L5-30R, two 120V 5-20R GFCI, USB-A/C
Our verdict“Choose the GM8000iETC if app and automatic starting flexibility matter more to you than the highest running-watt capacity.”
Westinghouse iGen8200TFc Tri-Fuel Portable Inverter Generator, 8200 Peak Watts
The iGen8200TFc balances useful household output with a stated up to 17 hours of runtime at 25% load from a 3.9-gallon tank. That makes it a more practical fit for extended, lighter-demand outages than the GENMAX GM8000iETC, whose data emphasizes multiple starting methods rather than a runtime figure. It also supplies 6,600 running watts on gasoline—more than the GM8000iETC’s 6,000—and includes a 50A transfer-switch-ready outlet plus an RV outlet. Inverter output below 3% THD and a noise figure around 60 dBA at 25% load suit electronics and quieter settings, though load and conditions affect both runtime and sound. Output drops on propane and natural gas, and the remote/electric start selection is simpler than GENMAX’s app and two-wire options.
Pros:- 6,600 gasoline running watts exceed the GENMAX GM8000iETC’s 6,000
- Up to 17 hours of runtime at 25% load on a 3.9-gallon tank
- Includes 50A transfer-switch-ready and TT-30R outlets
- THD below 3%, remote start, and CO sensor
Cons:- The 17-hour runtime applies at 25% load, not full output
- Running wattage falls to 5,940 on propane and 5,280 on natural gas
- Starting options lack the GM8000iETC’s Bluetooth app and two-wire auto-start
Best for: RV owners and households seeking a tri-fuel inverter with a 50A connection, remote start, and long stated runtime at light load.
Not ideal for: Buyers who need app-based or two-wire automatic starting, or who expect gasoline-level output when running on propane or natural gas.
- Fuel types:Gasoline, propane, natural gas
- Gasoline output:8,200 peak watts; 6,600 running watts
- Propane output:7,380 peak watts; 5,940 running watts
- Natural gas output:6,560 peak watts; 5,280 running watts
- Engine:298 cc 4-stroke OHV
- Runtime:Up to 17 hours at 25% load
- Fuel tank capacity:3.9 gallons
- Outlets:14-50R 50A, TT-30R 30A, GFCI 5-20R 20A duplex
- Noise and THD:Around 60 dBA at 25% load; less than 3% THD
Our verdict“Pick the iGen8200TFc if you want a balanced gasoline output, RV and home connections, and extended light-load runtime.”
Westinghouse WGen10500TFc Tri-Fuel Portable Generator with Remote Electric Start and CO Sensor
The WGen10500TFc is the step-up choice for buyers who need more continuous power than the iGen8200TFc can provide: it delivers 10,500 running watts and up to 13,500 peak watts. That capacity better suits a larger mix of home circuits and appliances, while gasoline, propane, and natural gas compatibility gives owners a choice during fuel shortages. Remote and push-button electric starting are convenient, with recoil as backup; the GENMAX GM8000iETC offers more start methods, but substantially less gasoline running output. The Westinghouse is also specified for up to 19 hours at 25% load from a 9.5-gallon tank. Its larger engine and heavy-duty design are the tradeoff: it is harder to move, and a transfer switch or interlock connection must be arranged separately.
Pros:- 10,500 running watts provide more continuous capacity than the iGen8200TFc
- Runs on gasoline, propane, or natural gas
- Remote and push-button electric start with recoil backup
- Up to 19 hours of runtime at 25% load
Cons:- Heavy-duty size can make movement and storage difficult
- Transfer switch or interlock equipment is not included
- The stated 19-hour runtime is at 25% load
Best for: Homeowners who need substantial continuous backup power, multiple fuel choices, and remote or electric starting.
Not ideal for: Campers, apartment dwellers, or buyers prioritizing easy portability and a smaller generator for occasional light loads.
- Fuel types:Gasoline, propane, natural gas
- Output:13,500 peak watts; 10,500 running watts
- Engine:500 cc 4-stroke OHV
- Fuel tank capacity:9.5 gallons (36 liters)
- Runtime:Up to 19 hours at 25% load
- Starting system:Push-button electric, remote key fob, recoil backup
- Voltage and frequency:240 volts; 60 hertz
- Safety features:CO sensor, automatic low-oil shutdown, overload protection
Our verdict“Choose the WGen10500TFc when household backup capacity matters more than portability or app-based starting features.”
Westinghouse WGen11500TFc 14,500-Watt Tri-Fuel Portable Generator with Remote Electric Start and CO Sensor
Among these five, the WGen11500TFc has the highest listed continuous output: 11,500 running watts, one thousand more than the WGen10500TFc. That extra capacity can matter when a backup plan includes several large household loads, but it comes with a bigger 550cc engine and a bulky portable format. Both Westinghouse models list up to 19 hours at 25% load from 9.5 gallons, so the WGen11500TFc’s main distinction is greater output, not a longer stated runtime. It supports gasoline, propane, and natural gas, plus remote and electric start, a CO sensor, and transfer-switch-ready outlets. Its listed THD is below 5%, compared with the inverter-focused GENMAX GM8000iETC’s 3% or less, so I’d favor the GENMAX for buyers prioritizing the lower THD specification.
Pros:- 11,500 running watts are the highest listed in this five-product selection
- Supports gasoline, propane, and natural gas
- Remote and electric start with CO sensor and low-oil shutdown
- Transfer-switch-ready 30A and 50A outlets
Cons:- Large engine and fuel tank make it a bulky choice for portable or recreational use
- THD is listed below 5%, higher than the GENMAX GM8000iETC’s 3% or less
- Transfer switch is sold separately
Best for: Homeowners with high backup loads who want the greatest listed running capacity in this group and can accommodate a large generator.
Not ideal for: Buyers who need easy transport, quieter inverter-style operation, or a lower stated THD for sensitive electronics.
- Fuel types:Gasoline, propane, natural gas
- Output:14,500 starting watts; 11,500 running watts
- Engine:550 cc 4-stroke OHV
- Fuel tank capacity:9.5 gallons (36 liters)
- Maximum runtime:Up to 19 hours
- Total harmonic distortion:Less than 5%
- Outlets:L14-30R 30A and 14-50R 50A
- Features:Remote and electric start, CO sensor, low-oil shutdown, fuel gauge, hour meter, overload protection
Our verdict“Choose the WGen11500TFc if maximum listed running output takes priority over compact size and the lower THD rating of the GM8000iETC.”
GENMAX GM10500XiT 10,500-Watt Tri-Fuel Open-Frame Inverter Generator
The GM10500XiT occupies a useful middle ground: its 7,800 running watts exceed the GM8000iETC’s 6,000, while its open-frame design and 120.9-pound weight make clear that this is still substantial equipment, not a lightweight camping unit. Its strongest distinction is the combination of remote, one-button, and recoil starting with two-wire automatic start/stop, a feature suited to buyers planning an integrated backup setup. It also offers three fuels, parallel operation, USB ports, and THD of 3% or less. Compared with the Westinghouse WGen10500TFc, it has lower listed running output but an inverter specification and automatic-start integration that may better fit electronics-focused backup plans. The open frame may be less suitable where quiet operation matters, and its stated runtime is only up to 13.5 hours at 25% load.
Pros:- 7,800 running watts with gasoline, propane, or natural gas compatibility
- Two-wire automatic start/stop alongside remote, one-button, and recoil starting
- THD of 3% or less and parallel operation
- Digital display, CO sensor, and USB ports
Cons:- At 120.9 pounds, it is not easy for one person to move
- Open-frame construction may be less suited to noise-sensitive settings
- Up to 13.5 hours of runtime is specified at only 25% load
Best for: Technically minded homeowners who want tri-fuel flexibility, automatic-start integration, and low-THD inverter output in an open-frame generator.
Not ideal for: Buyers seeking a quiet, easy-to-carry generator or the 10,500-plus running watts offered by the Westinghouse WGen10500TFc and WGen11500TFc.
- Fuel types:Gasoline, propane, natural gas
- Output:10,500 peak watts; 7,800 running watts
- Engine type:4-stroke
- Runtime:Up to 13.5 hours at 25% load
- Total harmonic distortion:≤3%
- Starting methods:One-button, remote, recoil; two-wire automatic start/stop
- Weight:120.9 pounds
- Dimensions:27.12 x 25.27 x 23.62 inches
- Features:Digital display, CO sensor, USB ports, 50A output, parallel operation
Our verdict“Pick the GM10500XiT if automatic-start integration and low-THD inverter output matter more than quiet operation or maximum running watts.”
GENMAX GM10500iETC Tri-Fuel Inverter Generator, 10500-Watt, 458cc, with Remote Start and ATS
The GM10500iETC is a strong fit for homeowners who want substantial inverter output and a path to automatic backup. Its 50A outlet, remote start, and ATS compatibility make it more oriented toward a home connection than a basic portable setup, while less than 3% THD supports sensitive electronics alongside larger loads. On gasoline, it supplies 8,500 running watts—less than the 11,500 watts offered by the larger GENMAX 13,500W model, but a more restrained output tier for buyers who do not need that extra capacity. The tradeoff is portability: the 458cc engine and large-generator format are not a natural choice for frequent relocation. I would also factor in that the neutral bonding plug for portable use is sold separately. Choose it for backup integration, not light-duty portability.
Pros:- Gasoline, propane, and natural gas offer fuel flexibility during outages.
- 8,500 running watts on gasoline can support substantial household loads.
- 50A outlet, remote start, and ATS compatibility suit home backup setups.
- Less than 3% THD is suited to sensitive electronics.
Cons:- Large size and weight limit frequent repositioning.
- Neutral bonding plug for portable use is sold separately.
Best for: Homeowners seeking a tri-fuel inverter with remote starting, a 50A connection, and ATS-compatible backup capability.
Not ideal for: Campers or job-site users who need a generator that is easy to move often, or buyers who need maximum output beyond its gasoline rating.
- Gasoline output:10,500 starting watts; 8,500 running watts
- Fuel types:Gasoline, propane, natural gas
- Engine:458cc, 4-stroke
- Voltage:120/240V
- THD:Less than 3%
- Fuel tank:6.9 gallons
- Runtime:Up to 14 hours
- Key outlets:120/240V 50A (14-50R), 120/240V 30A (L14-30R), four 120V 20A (5-20R)
- Warranty:3 years
Our verdict“Choose the GM10500iETC if home-backup connections and tri-fuel flexibility matter more than easy transport or the higher output of the GENMAX 13,500W model.”
GENMAX 13,500W Tri-Fuel Inverter Generator with Bluetooth, CO Sensor, and Auto-Start
For buyers who want the greatest stated output in this group, the GENMAX 13,500W leads with 11,500 running watts on gasoline and keeps meaningful capacity on propane and natural gas. That gives it more headroom than the GENMAX GM10500iETC, especially when several large household loads may run at once. Its five starting methods include Bluetooth app control and ATS two-wire auto-start, so it can suit both hands-on use and a backup arrangement. CO Shield shutdown and protection against overload and other electrical faults add useful safeguards. The price of that breadth is a 273.7-pound chassis; wheels and a handle help with movement but do not make it easy to load or store. Its stated runtime is up to 11.2 hours, so the Westinghouse iGen12000TFc may better suit buyers prioritizing longer light-load operation.
Pros:- Highest stated gasoline running output among these five products.
- Maintains substantial running output on propane and natural gas.
- Five starting methods include Bluetooth app and ATS auto-start.
- CO Shield shutdown and multiple electrical protections are included.
Cons:- At 273.7 pounds, it is difficult to transport despite its wheels and handle.
- Up to 11.2 hours of runtime depends on load and fuel.
Best for: Homeowners or contractors who need high running output across three fuels, multiple start options, and CO shutdown protection.
Not ideal for: Buyers who regularly transport a generator alone, or those who prioritize longer stated runtime over peak capacity.
- Peak output:13,500W gasoline; 12,500W propane; 10,500W natural gas
- Running output:11,500W gasoline; 10,500W propane; 9,500W natural gas
- Fuel types:Gasoline, propane, natural gas
- Engine:550cc, 4-stroke OHV
- Runtime:Up to 11.2 hours
- THD:3% or less
- Starting methods:Push-button, remote key fob, Bluetooth app, recoil, ATS two-wire auto-start
- Weight:273.7 lbs
- Warranty:3-year limited warranty
Our verdict“Pick this GENMAX when maximum tri-fuel inverter capacity and flexible starting matter more than manageable weight or extended runtime.”
Westinghouse iGen12000TFc 12,000-Watt Tri-Fuel Portable Inverter Generator
The Westinghouse iGen12000TFc stands out for pairing substantial output with a stated up to 19 hours at 25% load on gasoline. That light-load figure is a better match for overnight essentials than a promise of long operation at full demand, but the 7.9-gallon tank supports fewer refueling stops in modest-use backup scenarios. Its gasoline running output is 9,000 watts, sitting above the GENMAX GM10500iETC’s 8,500 watts and below the GENMAX 13,500W model’s 11,500 watts. Remote and electric start, a CO sensor, and transfer-switch-ready outlets make it a practical home-backup option, while less than 3% THD suits sensitive devices. The tradeoff is a large 457cc engine and steel construction that can be cumbersome to move; output and runtime also change with fuel and load.
Pros:- Up to 19 hours at 25% load on gasoline.
- Tri-fuel operation gives buyers options when one fuel is unavailable.
- 9,000 gasoline running watts provide more capacity than the GM10500iETC.
- Remote start, CO sensor, and transfer-switch-ready outlets support backup use.
Cons:- Large engine and steel construction make it difficult to move.
- Output and runtime vary by fuel and load, and the longest runtime is specified at 25% load.
Best for: Homeowners who want tri-fuel backup with extended stated runtime at a light load and enough output for several household essentials.
Not ideal for: Buyers who need easy one-person transport or expect the 19-hour runtime figure to apply at heavy loads.
- Gasoline output:12,000 peak watts; 9,000 running watts
- Propane output:11,000 peak watts; 8,100 running watts
- Natural gas output:9,800 peak watts; 7,200 running watts
- Engine:457cc, 4-stroke OHV
- Fuel tank:7.9 gallons
- Runtime:Up to 19 hours at 25% load on gasoline
- THD:Less than 3%
- Noise level:As low as 64 dBA
- Key outlets:14-50R 50A, L14-30R 30A, GFCI 5-20R 20A duplex
Our verdict“Choose the iGen12000TFc for long light-load backup and solid output, but favor the lighter-duty GM10500iETC if its lower capacity better fits your needs.”
Champion 11,000-Watt Tri-Fuel Portable Inverter Generator with Remote Start
The Champion 11,000-watt makes remote operation its clearest advantage: its wireless remote works from up to 80 feet, letting a user start it without walking back to the unit. It also has electric start, CO Shield automatic shutoff, and less than 3% THD for sensitive electronics. Its gasoline running output of 9,000 watts matches the Westinghouse iGen12000TFc, while its listed natural-gas output is 7,290 running watts—less than the Westinghouse’s 7,200? No: slightly higher, but far below its gasoline figure. The 6.08-gallon tank and up-to-15-hour runtime at 25% load make fuel and load planning relevant for longer outages. With no weight listed in the supplied specifications, I would not assume it is easier to move than the larger alternatives. It suits buyers who value remote starting over maximum capacity.
Pros:- Wireless remote start works from up to 80 feet away.
- Tri-fuel capability allows switching among gasoline, propane, and natural gas.
- Less than 3% THD is suitable for sensitive electronics.
- CO Shield automatic shutoff adds carbon monoxide protection.
Cons:- Gasoline runtime is specified at 25% load, not at full output.
- Its 6.08-gallon tank is smaller than the Westinghouse iGen12000TFc’s 7.9-gallon tank.
Best for: Homeowners who want to start a tri-fuel backup generator from a distance and need clean inverter power for electronics.
Not ideal for: Buyers who need the highest output in the group, or who expect the stated gasoline runtime to hold at heavy loads.
- Starting watts:11,000W
- Running watts:9,000W gasoline; 8,100W propane; 7,290W natural gas
- Fuel types:Gasoline, propane, natural gas
- Engine:459cc single-cylinder OHV
- Starting methods:Wireless remote start, electric start
- Remote range:Up to 80 feet
- Runtime:Up to 15 hours at 25% load on gasoline
- THD:Less than 3%
- Fuel tank:6.08 gallons
Our verdict“Choose the Champion if starting from a distance is a priority; select the GENMAX 13,500W instead when substantially more running capacity matters.”
Generac GP9500E Tri-Fuel Portable Generator with Electric Start
The Generac GP9500E is the straightforward high-output choice here: it supplies 9,500 running watts and 12,500 starting watts on gasoline, with propane and natural gas as alternatives. Unlike the inverter models from GENMAX, Westinghouse, and Champion in this group, its listed power regulation is AVR, not a stated low-THD inverter output. That makes it a different fit for buyers focused on powering household and motor-driven equipment rather than prioritizing inverter-style clean power for sensitive electronics. COsense shutdown, GFCI outlets, and electric start with an included battery support practical backup use. At 219 pounds it is heavy, though the wheel kit and folding handle help with repositioning. Its stated gasoline runtime reaches 9.5 hours at 50% load, shorter than the Westinghouse iGen12000TFc’s light-load figure, which uses a different test load.
Pros:- 9,500 running watts and 12,500 starting watts on gasoline.
- Gasoline, liquid propane, and natural gas offer fuel flexibility.
- Electric start includes a 12V battery; wheel kit and folding handle aid movement.
- COsense shutdown, low-oil shutdown, and GFCI-protected outlets are included.
Cons:- AVR regulation is not the same as the low-THD inverter output specified for the other models here.
- At 219 pounds, it remains heavy to move.
- The 9.5-hour runtime figure is specified at 50% load on gasoline.
Best for: Homeowners or work crews seeking high gasoline output, tri-fuel flexibility, electric start, and wheeled transport for occasional repositioning.
Not ideal for: Buyers who specifically need inverter output with a stated low THD for sensitive electronics, or who need a lightweight unit.
- Gasoline output:12,500 starting watts; 9,500 running watts
- Fuel types:Gasoline, liquid propane, natural gas
- Engine:500cc Generac OHV
- Fuel tank:7.5 gallons
- Runtime:Up to 9.5 hours at 50% load; up to 14 hours at 25% load on gasoline
- Starting method:Electric start with included 12V battery
- Key outlets:Two 120V 20A GFCI duplex, 120/240V 30A L14-30R, 120/240V 50A 14-50R
- Weight:219 lbs
- Warranty:3-year residential / 2-year commercial limited warranty
Our verdict“Pick the GP9500E for high-output, wheeled tri-fuel backup if inverter power quality is not your main requirement.”
Champion 10,000-Watt Tri-Fuel Electric-Start Open-Frame Inverter Generator
The Champion is a strong fit for backup plans that need substantial output without stepping up to the larger WEN TF1300iX. Its 7,750 watts of gasoline running output and three fuel choices give a household room to power several essentials, while the listed up to 15-hour runtime at 25% load favors extended, lighter-duty operation between refueling. Less than 3% THD is a useful spec for powering sensitive electronics, and CO Shield adds an automatic shutoff safeguard. Electric start and a wheel kit help with setup, but they do not make this a light generator: at 180.8 pounds, moving it still takes planning. Compared with the lighter GENMAX GM6250iET, Champion supplies more output and longer stated runtime, but gives up compactness and has fewer listed starting options.
Pros:- Runs on gasoline, propane, or natural gas
- Up to 15 hours of stated runtime at 25% load on gasoline
- Electric and recoil starting, with cold-start technology
- Less than 3% THD and CO Shield automatic shutdown
Cons:- Weighs 180.8 pounds, so portability depends on the wheel kit and a suitable route
- Open-frame operation is listed at 72 dB(A), which may be intrusive near occupied areas
- Must be operated outdoors and away from occupied buildings
Best for: Homeowners seeking multi-fuel backup, substantial gasoline output, and long runtime at a light load
Not ideal for: Campers or solo users who need a generator they can lift or move frequently; its 180.8-pound weight is a substantial handling burden
- Fuel types:Gasoline, propane, natural gas
- Starting wattage:10,000 watts
- Running wattage on gasoline:7,750 watts
- Running wattage on propane / natural gas:6,975 / 6,278 watts
- Engine:459cc OHV
- Runtime:Up to 15 hours at 25% load on gasoline
- Noise level:72 dB(A)
- Weight:180.8 pounds
- Power quality:Less than 3% THD
Our verdict“Choose the Champion if long, light-load gasoline runtime and useful backup output matter more than easy lifting or quiet operation.”
DuroMax XP11000iHT 11,000-Watt Tri-Fuel Portable Inverter Generator
The DuroMax suits buyers who want high output and the option to start their generator without standing beside it. Its 11,000 peak watts and 9,000 running watts give it more stated running capacity than the Champion 10,000-Watt model, while gasoline, propane, and natural gas offer fuel flexibility for backup use. The remote key fob and electric start are the defining convenience advantage here; the digital control center also makes operating information easier to check. Low-THD inverter output, CO Alert, and low-oil shutdown add practical protections. The tradeoff is bulk: at 216 pounds, it is the heaviest option in this group, and the supplied data gives no noise figure for comparing it with the WEN TF1300iX or GENMAX GM6250iET. Its three listed outlets also leave less outlet detail than the WEN’s broader mix.
Pros:- 9,000 running watts and 11,000 peak watts
- Supports gasoline, propane, and natural gas
- Remote key fob and electric start
- Low-THD inverter output with CO Alert and low-oil shutdown
Cons:- At 216 pounds, frequent repositioning is difficult
- Noise level is not specified in the supplied product data
- Only three outlets are listed, with outlet types unspecified
Best for: Homeowners who want high running output, three fuel options, and remote starting for a stationary backup setup
Not ideal for: Buyers who need to move a generator often or compare models by a documented noise rating; it weighs 216 pounds and no noise figure is provided
- Fuel types:Gasoline, propane, natural gas
- Peak wattage:11,000 watts
- Running wattage:9,000 watts
- Engine:459cc 4-stroke OHV
- Voltage and frequency:240 volts, 60 hertz
- Starting system:Electric start with remote key fob
- Outlets:3; outlet types not specified
- Weight:216 pounds
- Safety:CO Alert and low-oil shutdown
Our verdict“Pick the DuroMax if remote starting and 9,000 running watts outweigh its heavy frame and limited outlet details.”
WEN 13,000-Watt Tri-Fuel Inverter Generator with Electric Start and CO Shutdown Sensor (TF1300iX)
The WEN TF1300iX is the output-focused choice here, combining up to 10,500 running watts on gasoline with a particularly low listed distortion figure: under 1.2% at full load. That makes it a compelling match for buyers balancing household backup needs with sensitive electronics. It also publishes output by fuel, so buyers can plan around lower capacity on propane or natural gas rather than assume gasoline figures apply across all three. The WEN has a broader listed outlet selection than the DuroMax XP11000iHT, including a 120/240V outlet and USB ports. Its main compromises are the 7.7-hour maximum stated runtime at half load and propane runtime of up to three hours at half load on a 20-pound tank. A natural-gas hose is sold separately, adding a setup step for that fuel.
Pros:- Highest stated gasoline running output in this group at 10,500 watts
- Under 1.2% THD at full load, according to the supplied specs
- Output figures are listed separately for gasoline, propane, and natural gas
- Electric start, CO shutdown, and a varied AC, DC, and USB outlet selection
Cons:- Gasoline runtime is up to 7.7 hours at half load
- Propane runtime is up to three hours at half load on a 20-pound tank
- Natural-gas hose is sold separately
Best for: Homeowners who need high gasoline output, very low listed THD, and several outlet types for mixed backup loads
Not ideal for: Buyers prioritizing long operation at half load on propane or natural gas; its stated propane runtime is up to three hours, and the natural-gas hose is separate
- Fuel types:Gasoline, propane, natural gas
- Maximum surge output:13,000 watts on gasoline; 11,250 on propane; 10,000 on natural gas
- Running output:10,500 watts on gasoline; 9,000 on propane; 8,000 on natural gas
- Engine:550cc 4-stroke OHV
- Voltage:120V/240V
- Runtime:Up to 7.7 hours at half load on gasoline
- Noise level:64 dB at quarter load
- THD:Under 0.3% at no load; under 1.2% at full load
- Outlets:Two 120V 5-20R, one 120V/240V 14-50R, one 120V 10-50R, one 120V L5-30R, one 12V DC, two USB
Our verdict“Choose the WEN if high output and tightly specified inverter power take priority over longer stated runtime or a ready-to-use natural-gas hose.”
GENMAX GM6250iET 6250W Tri-Fuel Inverter Generator with Remote and Bluetooth App Control
At 101 pounds, the GENMAX GM6250iET is the practical choice for buyers who value easier handling more than the greater capacity of the Champion or WEN. Its 5,500 gasoline running watts are suited to a more focused set of home backup loads, while the 50A outlet gives it a useful connection option uncommon among smaller units. Starting flexibility is a standout: electric, recoil, remote, Bluetooth app, and 2-wire auto-start options let owners choose a method that fits the setup. The wheel kit and foldable handle support repositioning, though the weight is still substantial for carrying by hand. Its up to 10-hour runtime applies at only 25% load, so that figure should not be mistaken for runtime while powering heavier loads. At about 66 dB at that load, it also has a specified low-load noise figure, unlike the DuroMax XP11000iHT.
Pros:- Three-fuel operation in a 101-pound package with wheels and a foldable handle
- Five listed starting methods, including Bluetooth app and 2-wire auto-start
- Includes a 120/240V 50A outlet alongside USB-A and USB-C
- CO sensor and up to 10 hours of stated runtime at 25% load
Cons:- 5,500 running watts on gasoline is substantially below the larger Champion, DuroMax, and WEN options
- The 10-hour runtime figure is at just 25% load
- At 101 pounds, it may still be awkward to lift or carry without assistance
Best for: RV owners and homeowners with moderate backup needs who want a lighter tri-fuel inverter with app and remote starting
Not ideal for: Buyers who need to run many large loads at once or want a runtime figure at half load; output is below the larger Champion, DuroMax, and WEN models, and the listed runtime is at 25% load
- Fuel types:Gasoline, propane, natural gas
- Starting wattage:6,250 watts
- Running wattage:5,500 watts
- Runtime:Up to 10 hours at 25% load
- Noise level:About 66 dB at 25% load
- THD:≤3%
- Starting methods:Electric, remote key fob, Bluetooth app, 2-wire auto start, recoil
- Outlets:Two 120V 20A 5-20R, one 120V 30A L5-30R, one 120/240V 50A 14-50R, USB-A/C, battery charging port
- Weight:101 pounds
Our verdict“Choose the GENMAX if a smaller tri-fuel footprint and flexible starting matter more than the higher output of the larger models.”

How We Picked
I compared the 14 listed generators around the decisions that matter for tri-fuel use: stated output, inverter design, fuel flexibility, starting and monitoring controls, safety features, and the practical fit between generator size and a buyer’s intended loads. I gave weight to details that can change day-to-day use, such as ATS support, remote start, app control, CO sensing, and whether a model is described as open-frame or inverter-based. I did not assume that peak wattage equals sustained power, or that a feature listed for one model applies to another.
The ranking favors a useful balance of output and usability over the highest wattage alone. The iGen8200TFc leads as a broadly applicable pick; models with more output or automation suit narrower needs and rank accordingly. Lower-output generators can be a better fit for buyers with modest loads, while large models move up for users who need more capacity and accept added size and handling demands. Where the provided product details do not specify fuel-by-fuel running output, noise, weight, or outlets, I avoid treating those as known advantages.
| tri fuel inverter generator | Fuel types |
|---|---|
| GENMAX GM8000iETC 8000W Tri-Fu | Gasoline, propane, natural gas |
| Westinghouse iGen8200TFc Tri-F | Gasoline, propane, natural gas |
| Westinghouse WGen10500TFc Tri- | Gasoline, propane, natural gas |
| Westinghouse WGen11500TFc 14,5 | Gasoline, propane, natural gas |
| GENMAX GM10500XiT 10,500-Watt | Gasoline, propane, natural gas |
| GENMAX GM10500iETC Tri-Fuel In | Gasoline, propane, natural gas |
| GENMAX 13,500W Tri-Fuel Invert | Gasoline, propane, natural gas |
| Westinghouse iGen12000TFc 12,0 | — |
| Champion 11,000-Watt Tri-Fuel | Gasoline, propane, natural gas |
| Generac GP9500E Tri-Fuel Porta | Gasoline, liquid propane, natural gas |
| Champion 10,000-Watt Tri-Fuel | Gasoline, propane, natural gas |
| DuroMax XP11000iHT 11,000-Watt | Gasoline, propane, natural gas |
| WEN 13,000-Watt Tri-Fuel Inver | Gasoline, propane, natural gas |
| GENMAX GM6250iET 6250W Tri-Fue | Gasoline, propane, natural gas |
Factors to Consider When Choosing Tri Fuel Inverter Generators
My product picks show how different tri-fuel generators can be, but choosing well starts with your own loads and fuel setup. These broader checks help prevent overbuying, under-sizing, or expecting a feature that a model does not provide.
Size the generator around running and starting loads
List the appliances you actually want to operate together, then separate their normal running draw from any brief startup surge. Motors in refrigerators, pumps, and air conditioners can demand more power at startup, so a generator’s peak figure alone is not enough to plan a circuit. Add the running loads you expect to use at the same time and check whether the manufacturer publishes starting and running wattage for gasoline, propane, and natural gas. Output can vary by fuel, so a plan based on gasoline figures may not hold when the generator is connected to natural gas. If your essential loads fit a smaller unit, moving up to a very large model can bring extra bulk without a useful benefit. If you need whole-home backup, have an electrician review the load plan and transfer equipment.
Choose fuel flexibility based on your real supply
Tri-fuel capability helps only when you can safely access the fuel you plan to use. Gasoline may be convenient for short-term use, but it needs suitable storage and can be hard to obtain during a widespread outage. Propane stores differently and can be useful when you already have tanks, though tank size and cold-weather conditions affect how well a setup serves long runtimes. Natural gas can avoid refueling trips when a home line remains available, but it requires a compatible connection and may deliver less generator output than gasoline. Check the manual for approved hoses, regulators, connection sizes, and fuel-specific wattage before buying accessories. Do not treat the three fuel options as interchangeable without checking those limits.
Treat inverter design as a separate decision from fuel type
Tri-fuel describes which fuels a generator can use; inverter design describes how it produces electricity. Buyers who plan to power sensitive electronics should check the model’s stated electrical characteristics and follow the manufacturer’s guidance rather than relying on the word “inverter” alone. This roundup includes products explicitly described as inverter generators alongside conventional portable-generator listings, so confirm the exact model designation before deciding. Open-frame designs can also affect exposure to weather, sound, and transport, although those details depend on the specific construction. Compare the model’s specifications for total harmonic distortion, outlets, grounding instructions, and any restrictions for electronics. A fuel-flexible generator is not automatically the right electrical match for every device.
Match automation features to how you will operate it
Remote start, Bluetooth app control, and automatic transfer or start functions solve different problems. Remote start lets an operator start the machine from a distance, while an app may provide monitoring or control functions that depend on the product’s supported features. ATS support can be useful for a planned backup setup, but the letters alone do not confirm that a generator can safely power a home without compatible transfer equipment. Check exactly what is included, what must be purchased separately, and whether setup requires a qualified electrician. For occasional camping or manual backup, extra automation may add complexity without improving the way you use the generator. For a fixed home setup, compatibility and installation instructions matter more than a feature name.
Plan for placement, noise, and safe operation
A large generator needs a stable outdoor location with clear airflow, safe separation from doors and windows, and protection from rain that does not block ventilation. CO sensors and shutdown features add a safety layer, but they do not make indoor or enclosed operation safe. Review the manual for required clearances and never place a running generator in a garage, basement, or other enclosed space. Consider the path from storage to the operating location: high-output models can be difficult to move, and wheel kits or lifting points vary by model. Sound specifications can help compare options, but operating distance and load also affect what neighbors hear. Decide where the generator will live before choosing a size that may be hard to position safely.
Compare maintenance and long-term readiness
A backup generator needs upkeep even when it runs only during occasional outages. Review service intervals, oil capacity, air-filter access, spark-plug requirements, and the manufacturer’s guidance for storing fuel or preparing the machine for extended inactivity. A generator that is easy to inspect and maintain may be a better fit than a more powerful model with controls or access points you find difficult to manage. Test the setup periodically according to the manual, including any transfer equipment and fuel connections. Keep a record of the fuel configuration and accessories that work with the generator so you are not solving connection questions during an outage. Treat maintenance access and support documentation as part of the purchase, not as an afterthought.
Frequently Asked Questions
Will a tri-fuel generator provide the same wattage on gasoline, propane, and natural gas?
Not necessarily: available output can differ by fuel, and natural gas or propane may produce less power than gasoline on a given model. Check the manufacturer’s running and peak wattage figures for each fuel rather than relying on one headline number. Size your load plan around the fuel you expect to use during an outage, especially if you intend to run a large motor or several appliances at once. If a product listing does not show fuel-specific figures, consult the manual or manufacturer before buying. This is one reason the largest advertised wattage does not automatically make a generator the right choice.
Can I connect a tri-fuel generator directly to my home electrical panel?
Do not connect a portable generator directly to a home panel through an ordinary outlet or improvised wiring. A compatible transfer switch or other approved transfer equipment is needed to prevent dangerous backfeed and to provide a proper connection. Some generator listings mention ATS support, but that does not by itself confirm that all transfer equipment is included or that the installation is plug-and-play. Ask a qualified electrician to review the generator, panel, and intended loads before setting up home backup. Follow the generator and transfer-equipment manuals for installation and operation.
Is an inverter model worth choosing over a conventional tri-fuel generator?
That depends on your power needs and the exact specifications of the models you are comparing. Inverter design may be a priority if the manufacturer specifies suitable output for your electronics or if operating behavior at changing loads matters to you, but do not assume every inverter generator is quieter or more fuel-efficient without checking its published figures. Conventional portable models can still suit buyers whose main requirement is backup power for specified household loads. This roundup includes both descriptions, so verify that the model name and product type match what you intend to buy. Compare electrical output, outlets, weight, sound data, and maintenance details together.
How much generator capacity should I leave in reserve?
There is no single reserve percentage that fits every home; the right margin depends on which appliances will run together and their startup demands. Add the running wattage of the loads you expect to use at once, then account for the largest motor’s starting surge and the generator’s fuel-specific output. A little unused capacity can make load changes easier, but buying a much larger model can add transport and storage burdens. Avoid counting every appliance in the home if you will not operate them simultaneously. For a whole-home plan, have an electrician help confirm the load calculation and transfer setup.
What should I check before relying on natural gas during an outage?
Confirm that the generator supports the available gas connection and that the required hose, regulator, and fittings are compatible with the installation. Check the model’s natural-gas running output, since it may be lower than its gasoline rating and could change which appliances you can run together. A home gas supply may be interrupted or restricted during some emergencies, so consider whether propane or stored gasoline is a practical backup for your situation. Have any permanent connection reviewed by a qualified professional and follow local requirements. Test the full setup before an outage rather than discovering a connection or capacity problem when power is already out.
Conclusion
For most buyers seeking a balance of capacity and manageable size, I recommend the Westinghouse iGen8200TFc as best overall. The best value by fit is the GENMAX GM6250iET for households whose essential loads stay within its lower output class; choosing a smaller generator only makes sense when the load plan supports it. For a premium, higher-capacity choice, look at the GENMAX 13,500W Tri-Fuel Inverter Generator, while confirming fuel-specific output and installation needs. Beginners who want a more approachable capacity should start by comparing the iGen8200TFc with the GM6250iET and favor clear controls and a straightforward maintenance plan. For automatic-start planning, the GENMAX GM10500iETC is the specific pick to investigate because it lists ATS support; for other needs, select by your actual loads, fuel access, and safe placement rather than wattage alone.
















