The best tri-fuel generators let you choose between gasoline, propane, and natural gas as fuel availability changes. I name the Westinghouse WGen14500TFc my best overall pick for its high output and remote electric start, while the Westinghouse iGen8200TFc stands out for buyers who want an inverter design and the WGen9500TFc suits a more modest backup-power plan. The main tradeoff is between high wattage for larger loads and inverter features that can better suit sensitive electronics, alongside differences in size, controls, and fuel setup. Read on for how all 15 options compare and which one fits your priorities.
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Key Takeaways
- The WGen14500TFc is my best overall choice because it pairs substantial portable-generator output with remote electric start; buyers who need even more capacity can look at the WGen20000TFc.
- Inverter design marks a distinct choice: the iGen8200TFc and iGen12000TFc put inverter operation into tri-fuel options, while most models here prioritize conventional high-output backup power.
- Output varies widely across the lineup, from the WGen9500TFc to the WGen20000TFc, so matching running and starting watts to actual loads matters more than choosing the largest number.
- Remote or electric start appears on several picks, including models from Westinghouse, WEN, and Generac; it can simplify startup, though it does not replace planning for fuel, placement, and safe operation.
- Brand repetition does not mean identical fit: Westinghouse offers the broadest spread of sizes and inverter choices here, while DuroMax, WEN, Generac, and GENMAX provide alternatives with different output and control combinations.
| DuroStar DS13000MXT 13,000-Watt Tri-Fuel Portable Generator |  | Best for Straightforward Home Backup | Model: DS13000MXT | Power output: Up to 13,000 watts | Engine displacement: 500 cc | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen14500TFc Tri-Fuel Portable Generator with Remote Electric Start and CO Sensor |  | Best for High-Capacity Backup | Fuel types: Gasoline, propane, natural gas | Running output: 14,500 W gasoline; 13,000 W propane; 11,600 W natural gas | Peak output: 18,000 W gasoline; 16,000 W propane; 14,400 W natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| WEN TF-1450 14,500-Watt Tri-Fuel Generator with Electric Start |  | Best for Runtime Planning | Fuel types: Gasoline, propane, natural gas | Running output: 11,500 W gasoline; 10,300 W propane; 8,750 W natural gas | Surge output: 14,500 W gasoline; 12,500 W propane; 10,500 W natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse iGen8200TFc Tri-Fuel Portable Inverter Generator |  | Best Compact Inverter Pick | Fuel types: Gasoline, propane, natural gas | Running output: 6,600 W gasoline; 5,940 W propane; 5,280 W natural gas | Peak output: 8,200 W gasoline; 7,380 W propane; 6,560 W natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse iGen12000TFc Tri-Fuel Portable Inverter Generator |  | Best High-Output Inverter | Fuel types: Gasoline, propane, natural gas | Running output: 9,000 W gasoline; 8,100 W propane; 7,200 W natural gas | Peak output: 12,000 W gasoline; 11,000 W propane; 9,800 W natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse 14,500-Watt Tri-Fuel Portable Generator with Remote Electric Start |  | Best for Long Gasoline Runtime | Fuel types: Gasoline, propane, natural gas | Gasoline output: 14,500 peak watts; 11,500 running watts | Propane output: 13,500 peak watts; 10,500 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| DuroMax XP15000HXT 15,000-Watt Tri-Fuel Portable Generator with CO Alert |  | Best for Outlet Flexibility | Fuel types: Gasoline, propane, natural gas | Power output: 15,000 watts | Engine: 500cc OHV | VIEW LATEST PRICE | See Our Full Breakdown |
| Generac 12,500-Watt Tri-Fuel Portable Generator with Electric Start |  | Best for Safety Features | Fuel types: Gasoline, liquid propane, natural gas | Gasoline output: 12,500 starting watts; 9,500 running watts | Engine: 500cc Generac OHV | VIEW LATEST PRICE | See Our Full Breakdown |
| WEN 13,000-Watt Tri-Fuel Inverter Generator with Electric Start |  | Best for Vehicle Charging | Model: TF1300iX | Fuel types: Gasoline, propane, natural gas | Gasoline output: 13,000 surge watts; 10,500 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen20000TFc Tri-Fuel Portable Generator, 28,000 Peak Watts |  | Best for Whole-Home-Scale Backup | Fuel types: Gasoline, propane, natural gas | Peak output: 28,000 W gasoline; 25,200 W propane; 22,400 W natural gas | Running output: 20,000 W gasoline; 18,000 W propane; 16,000 W natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| DuroMax XP13000HXT 13,000-Watt Tri-Fuel Portable Generator |  | Best for Remote Starting | Peak wattage: 13,000 watts | Running wattage: 10,500 watts | Fuel types: Gasoline, propane, natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| GENMAX GM15000ET Tri-Fuel Portable Generator |  | Best for High Rated Output | Peak power: 15,000 watts | Fuel types: Gasoline, LPG, natural gas | Fuel tank: 10.56 gallons | VIEW LATEST PRICE | See Our Full Breakdown |
| WEN 14,500-Watt Tri-Fuel Generator with Electric Start |  | Best for Fuel-Specific Output Planning | Fuel types: Gasoline, propane, natural gas | Running watts: 11,500 gasoline; 10,300 propane; 8,750 natural gas | Surge watts: 14,500 gasoline; 12,500 propane; 10,500 natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen9500TFc Tri-Fuel Portable Generator |  | Best for Longer Listed Runtime | Fuel types: Gasoline, propane, natural gas | Gasoline output: 12,500 peak; 9,500 running watts | Propane output: 11,200 peak; 8,500 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse 13,500-Watt Tri-Fuel Portable Generator with Remote Electric Start |  | Best for Extended Gasoline Runtime | Fuel types: Gasoline, propane, natural gas | Gasoline output: 13,500 peak; 10,500 running watts | Propane output: 12,500 peak; 9,500 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| tri-fuel generator | Fuel types | Engine | Starting | Fuel tank |
|---|---|---|---|---|
| DuroStar DS13000MXT 13,000-Wat | Gasoline, propane, natural gas | — | Push-button electric start | — |
| Westinghouse WGen14500TFc Tri- | Gasoline, propane, natural gas | 713 cc Westinghouse V-Twin OHV | Push-button and remote electric start | 10.5 gallons |
| WEN TF-1450 14,500-Watt Tri-Fu | Gasoline, propane, natural gas | 500 cc 4-stroke OHV | Electric start | 8.2 gallons |
| Westinghouse iGen8200TFc Tri-F | Gasoline, propane, natural gas | 298 cc 4-stroke OHV with cast iron sleeve | — | 3.9 gallons |
| Westinghouse iGen12000TFc Tri- | Gasoline, propane, natural gas | 457 cc 4-stroke OHV | — | 7.9 gallons |
| Westinghouse 14,500-Watt Tri-F | Gasoline, propane, natural gas | 550cc 4-stroke OHV | Remote electric start | 9.5 gallons |
| DuroMax XP15000HXT 15,000-Watt | Gasoline, propane, natural gas | 500cc OHV | Push-button and remote start | — |
| Generac 12,500-Watt Tri-Fuel P | Gasoline, liquid propane, natural gas | 500cc Generac OHV | Electric start with included 12V battery | 7.5 gallons |
| WEN 13,000-Watt Tri-Fuel Inver | Gasoline, propane, natural gas | 550cc 4-stroke OHV | — | — |
| Westinghouse WGen20000TFc Tri- | Gasoline, propane, natural gas | 999cc 4-stroke OHV V-twin | Push-button electric start and remote start key fob | 17.2 gallons |
| DuroMax XP13000HXT 13,000-Watt | Gasoline, propane, natural gas | 500 cc four-stroke OHV | Electric push-button and remote | 8.3 gallons |
| GENMAX GM15000ET Tri-Fuel Port | Gasoline, LPG, natural gas | — | One-button, remote, recoil | 10.56 gallons |
| WEN 14,500-Watt Tri-Fuel Gener | Gasoline, propane, natural gas | 500 cc four-stroke OHV | Electric start with recoil backup | — |
| Westinghouse WGen9500TFc Tri-F | Gasoline, propane, natural gas | 457 cc four-stroke OHV | Remote, electric, recoil | 6.6 gallons |
| Westinghouse 13,500-Watt Tri-F | Gasoline, propane, natural gas | 500 cc four-stroke OHV | Remote, electric, recoil | 9.5 gallons |
More Details on Our Top Picks
DuroStar DS13000MXT 13,000-Watt Tri-Fuel Portable Generator
The DuroStar DS13000MXT pairs three-fuel flexibility with up to 13,000 watts and a transfer switch-ready 50-amp outlet, a useful combination for homeowners planning to power household circuits during an outage. Its push-button start and automatic CO Alert shutdown keep the feature set focused on starting and basic safety. Compared with the Westinghouse WGen14500TFc, it offers less output and the supplied data does not include runtime or fuel-specific ratings, so it is harder to estimate how it will serve a larger load or how often gasoline refills may be needed. The DuroStar makes more sense for buyers who value a clear, backup-oriented setup over detailed operating figures. That missing runtime information is a real planning drawback for extended outages.
Pros:- Runs on gasoline, propane, or natural gas
- Up to 13,000 watts of output
- Transfer switch-ready 50-amp outlet
- Push-button start and automatic CO Alert shutdown
Cons:- No runtime figures are provided for planning fuel use
- Fuel-specific output ratings are not provided
- Offers less stated peak capacity than the Westinghouse WGen14500TFc
Best for: Homeowners who want gasoline, propane, and natural gas options with a 50-amp connection for planned backup circuits.
Not ideal for: Buyers sizing a generator around long outages or heavy simultaneous loads, since runtime and fuel-specific output figures are not provided.
- Model:DS13000MXT
- Power output:Up to 13,000 watts
- Engine displacement:500 cc
- Fuel types:Gasoline, propane, natural gas
- Starting:Push-button electric start
- Outlet:Transfer switch-ready 50-amp outlet
- Safety feature:CO Alert automatic shutdown
Our verdict“Choose the DS13000MXT for three-fuel flexibility and a 50-amp backup connection when the available runtime details are sufficient for your planning.”
Westinghouse WGen14500TFc Tri-Fuel Portable Generator with Remote Electric Start and CO Sensor
For buyers prioritizing output, the Westinghouse WGen14500TFc leads this group with 14,500 running watts on gasoline and fuel-specific ratings that make load planning more concrete. Its remote start can save a trip outside to start the unit, while the 50-amp outlet suits a transfer-switch connection. Compared with the WEN TF-1450, it provides higher running output on gasoline and a larger 10.5-gallon tank; the WEN, though, specifies up to 12 hours at half load, while this model’s runtime figure is only at 25% load. The V-twin engine and large frame make this a substantial machine, so portability is a tradeoff rather than a selling point. Its low THD also gives it a broader electronics use case than many high-output conventional generators.
Pros:- Highest stated gasoline running output among these five picks
- Output ratings are specified for gasoline, propane, and natural gas
- Remote and push-button electric start
- Less than 5% THD with CO and low-oil shutdown
Cons:- Large, heavy design can make transport and storage difficult
- Runtime is specified only at 25% load
- Gasoline tank capacity and output come with a substantial machine footprint
Best for: Households with substantial backup loads that want high gasoline output, remote starting, and quantified output across all three fuels.
Not ideal for: Buyers who need a generator that’s easy to move or want runtime data at a more demanding load than 25%.
- Fuel types:Gasoline, propane, natural gas
- Running output:14,500 W gasoline; 13,000 W propane; 11,600 W natural gas
- Peak output:18,000 W gasoline; 16,000 W propane; 14,400 W natural gas
- Engine:713 cc Westinghouse V-Twin OHV
- Fuel tank:10.5 gallons
- Runtime:Up to 16 hours at 25% load on gasoline
- Total harmonic distortion:Less than 5%
- Starting:Push-button and remote electric start
- Safety:CO shutdown and automatic low-oil shutdown
Our verdict“Pick the WGen14500TFc when high backup capacity and remote starting matter more than easy handling.”
WEN TF-1450 14,500-Watt Tri-Fuel Generator with Electric Start
The WEN TF-1450 stands out for giving buyers a usable runtime benchmark: up to 12 hours at half load. That figure offers a more demanding planning reference than the 25%-load runtime listed for the Westinghouse WGen14500TFc. Its 500 cc engine delivers 11,500 running watts on gasoline, while the included wheel kit and fuel connection accessories help with setup and repositioning. The compromise is a noticeable drop in output when switching fuels: natural gas running output is 8,750 watts, well below its gasoline rating. It also lacks the remote start listed for the Westinghouse. The TF-1450 is a practical fit for buyers who want clear runtime and accessory details, provided they size their loads around the fuel they expect to use.
Pros:- Up to 12 hours of runtime specified at half load
- 120V and 240V outlets include transfer-switch-ready options
- Wheel kit and LPG and natural-gas connection accessories are included
- Electric start and three-fuel operation
Cons:- Running output falls to 8,750 watts on natural gas
- No remote starting is listed
- Runtime is specified only at half load
Best for: Backup buyers who want a half-load runtime figure, included fuel connection accessories, and enough output for several household circuits.
Not ideal for: Those who expect to run large loads on natural gas or want remote start and higher natural-gas output.
- Fuel types:Gasoline, propane, natural gas
- Running output:11,500 W gasoline; 10,300 W propane; 8,750 W natural gas
- Surge output:14,500 W gasoline; 12,500 W propane; 10,500 W natural gas
- Engine:500 cc 4-stroke OHV
- Voltage:120V/240V
- Fuel tank:8.2 gallons
- Runtime:Up to 12 hours at half load
- Starting:Electric start
- Included accessories:Wheel kit, oil, 6-foot LPG connection hose, and natural-gas quick-connect adapter
Our verdict“Choose the TF-1450 if its half-load runtime figure and included connection accessories matter more than remote start or stronger natural-gas output.”
Westinghouse iGen8200TFc Tri-Fuel Portable Inverter Generator
The Westinghouse iGen8200TFc is the inverter choice for buyers who value cleaner power and a smaller engine over maximum backup capacity. Its less than 3% THD rating makes it better suited to sensitive electronics than the DuroStar DS13000MXT, for which no distortion figure is supplied. The 50-amp outlet still gives it a home-backup connection, while the listed 60 dBA noise level at 25% load and up to 17-hour runtime suit lighter, longer-running needs. Its output is the constraint: gasoline running output is 6,600 watts, dropping to 5,280 on natural gas. That is far below the Westinghouse iGen12000TFc, so buyers with large simultaneous loads should look up the lineup. Runtime is also quoted only at 25% load.
Pros:- Less than 3% THD for sensitive electronics
- Three-fuel operation with fuel-specific output figures
- 50-amp outlet supports home backup connections
- Up to 17 hours of runtime at 25% load
Cons:- Lower running output than the iGen12000TFc and larger conventional generators
- Runtime figure applies only at 25% load
- Around 60 dBA at 25% load may still be noticeable nearby
Best for: RV owners and smaller households who want inverter power quality, three-fuel flexibility, and a 50-amp outlet for moderate backup needs.
Not ideal for: Homes with large simultaneous loads or buyers who need runtime estimates at higher loads.
- Fuel types:Gasoline, propane, natural gas
- Running output:6,600 W gasoline; 5,940 W propane; 5,280 W natural gas
- Peak output:8,200 W gasoline; 7,380 W propane; 6,560 W natural gas
- Engine:298 cc 4-stroke OHV with cast iron sleeve
- Fuel tank:3.9 gallons
- Runtime:Up to 17 hours at 25% load
- Noise level:Around 60 dBA at 25% load
- Total harmonic distortion:Less than 3%
- Outlets:120/240V 14-50R 50A; 120V TT-30R 30A; 120V 5-20R GFCI duplex
Our verdict“The iGen8200TFc fits buyers who put inverter output quality and quieter light-load operation ahead of high-capacity backup.”
Westinghouse iGen12000TFc Tri-Fuel Portable Inverter Generator
The Westinghouse iGen12000TFc combines inverter output quality with more capacity than the iGen8200TFc: it supplies 9,000 running watts on gasoline and keeps THD at 3% or less. That makes it a stronger fit for homes needing sensitive-electronics support alongside broader backup loads. Remote start, a digital display, and parallel capability add useful flexibility, though the data does not state a combined parallel output. The tradeoff against the WGen14500TFc is straightforward: this inverter model offers cleaner power and a lower listed noise floor, while the WGen has substantially higher running output. Its 19-hour runtime sounds generous but applies only at 25% load, and its heavy-duty design may be awkward to move. Natural-gas output also drops to 7,200 running watts.
Pros:- Inverter output with THD of 3% or less
- Higher running output than the iGen8200TFc
- Remote start, digital display, and parallel capability
- 50-amp outlet and up to 19 hours of runtime at 25% load
Cons:- Still has less gasoline running output than the WGen14500TFc
- Runtime figure is limited to 25% load
- Large, heavy-duty design may be difficult to transport
Best for: Homeowners seeking inverter power for electronics, remote start, and more capacity than the iGen8200TFc for mixed backup loads.
Not ideal for: Buyers prioritizing maximum whole-home output or easy transport, especially if they expect to run near capacity for long periods.
- Fuel types:Gasoline, propane, natural gas
- Running output:9,000 W gasoline; 8,100 W propane; 7,200 W natural gas
- Peak output:12,000 W gasoline; 11,000 W propane; 9,800 W natural gas
- Engine:457 cc 4-stroke OHV
- Fuel tank:7.9 gallons
- Runtime:Up to 19 hours at 25% load
- Noise level:As low as 64 dBA
- Total harmonic distortion:3% or less
- Features:Remote start, parallel capability, CO sensor, low-oil shutdown, Eco Mode, digital display
Our verdict“Choose the iGen12000TFc for a higher-output inverter with remote start when cleaner power matters more than the WGen14500TFc’s greater capacity.”
Westinghouse 14,500-Watt Tri-Fuel Portable Generator with Remote Electric Start
Long gasoline runtime gives this Westinghouse an edge for buyers who expect extended outages and can store fuel safely: its 9.5-gallon tank is rated for up to 19 hours. It also delivers 11,500 running watts on gasoline, with lower output on propane and natural gas so buyers can weigh fuel availability against capacity. Compared with the Generac 12,500-Watt Tri-Fuel Generator, this model offers more gasoline running power and a longer stated runtime, while the Generac includes COsense shutdown and a lighter 219-pound listed weight. Remote start and low-THD output add practical appeal for backup circuits and electronics. The tradeoff is its substantial engine and tank, which make frequent repositioning less convenient; the propane runtime is also rated at only seven hours on a 20-pound tank.
Pros:- Runs on gasoline, propane, or natural gas
- 11,500 running watts on gasoline
- Up to 19 hours of gasoline runtime
- Remote start and low-THD output
Cons:- Large tank and heavy-duty engine make frequent transport less convenient
- Propane runtime is up to seven hours on a 20-pound tank
Best for: Homeowners who need substantial backup capacity and want fewer gasoline refills during a long outage
Not ideal for: Campers or jobsite users who need a generator they can move often or prioritize a listed CO shutdown feature
- Fuel types:Gasoline, propane, natural gas
- Gasoline output:14,500 peak watts; 11,500 running watts
- Propane output:13,500 peak watts; 10,500 running watts
- Natural gas output:12,000 peak watts; 9,500 running watts
- Engine:550cc 4-stroke OHV
- Fuel tank:9.5 gallons
- Gasoline runtime:Up to 19 hours
- Starting:Remote electric start
- Power quality:Low-THD output
Our verdict“Choose this Westinghouse for extended gasoline-powered home backup when runtime and output matter more than easy transport.”
DuroMax XP15000HXT 15,000-Watt Tri-Fuel Portable Generator with CO Alert
The outlet selection is the XP15000HXT’s clearest advantage: its 50-amp connection and 30-amp outlets give homeowners several ways to connect larger loads or backup equipment. Push-button and remote starting reduce the effort of getting power running, while CO Alert automatic shutdown adds a safety feature absent from the supplied specifications for the Westinghouse 14,500-Watt model. Its stated 15,000-watt output puts it in the high-capacity class, and copper windings are specified. That combination suits buyers building a flexible backup setup, but the available product data does not give fuel-specific output figures or runtime and consumption estimates. The Generac 12,500-Watt Tri-Fuel Generator lists those output and runtime details more clearly, so it may be easier to match to a planned load. The DuroMax’s 500cc engine also makes it a bulky choice for frequent transport.
Pros:- Gasoline, propane, and natural gas compatibility
- Includes a 120/240V 50-amp outlet and multiple 30-amp outlets
- Push-button and remote starting
- CO Alert automatic shutdown
Cons:- No runtime or fuel-consumption details are provided
- Large 500cc engine makes it bulky to transport
Best for: Homeowners connecting transfer-switch equipment and several kinds of 120V and 240V loads
Not ideal for: Buyers who need dependable runtime estimates or fuel-specific capacity figures before planning an outage setup
- Fuel types:Gasoline, propane, natural gas
- Power output:15,000 watts
- Engine:500cc OHV
- Starting:Push-button and remote start
- 120V outlets:Four 120V 20A GFCI outlets
- 30A outlets:One 120V 30A twist lock; one 120/240V 30A twist lock
- 50A outlet:One 120/240V 50A outlet
- Display:LED display with gas gauge, load gauge, voltage, frequency, and time
- Safety feature:CO Alert automatic shutdown
Our verdict“Pick the XP15000HXT when outlet variety, remote starting, and CO shutdown matter more than published runtime data.”
Generac 12,500-Watt Tri-Fuel Portable Generator with Electric Start
COsense shutdown and automatic voltage regulation make this Generac a considered choice for buyers who want specified safety and voltage-control features alongside tri-fuel flexibility. Its 9,500 running watts on gasoline are below the Westinghouse 14,500-Watt model’s 11,500, so it is a better fit for a more measured backup load than for buyers chasing the most capacity in this group. In return, Generac provides a clear runtime estimate: up to 9.5 hours at 50% load, with a longer figure at 25%. The included battery, wheel kit, and folding handle support setup and repositioning, though its 219-pound weight still calls for planning. Compared with the DuroMax XP15000HXT, the Generac supplies more complete load and runtime information, but its gasoline tank is smaller and its gasoline output lower.
Pros:- COsense carbon monoxide detection and shutdown
- Automatic voltage regulation
- Includes battery, LP hose, oil, and wheel kit
- Runtime figures are provided for two load levels
Cons:- 219-pound weight makes it difficult to move without help
- Gasoline runtime is limited by the 7.5-gallon tank
- Lower gasoline running output than the Westinghouse 14,500-Watt model
Best for: Homeowners seeking a tri-fuel backup unit with specified CO shutdown, voltage regulation, and load-based runtime figures
Not ideal for: Buyers with high simultaneous loads who need more than 9,500 gasoline running watts or a lightweight portable unit
- Fuel types:Gasoline, liquid propane, natural gas
- Gasoline output:12,500 starting watts; 9,500 running watts
- Engine:500cc Generac OHV
- Fuel tank:7.5 gallons
- Gasoline runtime:Up to 9.5 hours at 50% load; up to 14 hours at 25% load
- Starting:Electric start with included 12V battery
- Voltage regulation:Automatic voltage regulation (AVR)
- Safety feature:COsense carbon monoxide detection and shutdown
- Weight:219 lbs
Our verdict“Choose the Generac for clearly specified safety and voltage features when 9,500 gasoline running watts meets your backup needs.”
WEN 13,000-Watt Tri-Fuel Inverter Generator with Electric Start
120V/240V power and a 14-50R outlet make this WEN relevant to buyers who want generator backup that can also support Level 2 vehicle charging, provided the vehicle and charging setup are compatible. Its gasoline rating of 10,500 running watts falls below the Westinghouse 14,500-Watt model, and the stated 7.7-hour runtime at half load means more frequent refueling than that Westinghouse’s gasoline runtime claim. The outlet mix extends beyond large loads to include DC and USB connections, giving it more everyday charging options than a basic backup-focused layout. CO Watchdog shutdown and electric start add useful operating features. The product is described as an inverter generator, but the supplied data does not state a THD figure, so buyers comparing power quality should not assume one. Its large 550cc engine also limits portability.
Pros:- Runs on gasoline, propane, or natural gas
- 120V/240V output and a 14-50R outlet support compatible backup and charging setups
- Includes 12V DC and USB outlets
- Electric start and CO Watchdog shutdown
Cons:- Up to 7.7 hours of runtime at half load means regular refueling
- Bulky 550cc generator is less suited to frequent transport
- Supplied specifications do not include a THD figure
Best for: Drivers and homeowners who need tri-fuel backup, 120V/240V output, and several AC, DC, and USB charging connections
Not ideal for: Buyers who need the highest gasoline running capacity or long runtime between refills
- Model:TF1300iX
- Fuel types:Gasoline, propane, natural gas
- Gasoline output:13,000 surge watts; 10,500 running watts
- Propane output:11,250 surge watts; 9,000 running watts
- Natural gas output:10,000 surge watts; 8,000 running watts
- Engine:550cc 4-stroke OHV
- Runtime:Up to 7.7 hours at half load
- Voltage:120V/240V
- Outlets:Two 120V 5-20R, one 120V/240V 14-50R, one 120V L5-30R, one 120V 10-50R, one 12V DC, and two USB
Our verdict“Choose this WEN if vehicle charging connections and a broad outlet mix matter more than maximum output or extended runtime.”
Westinghouse WGen20000TFc Tri-Fuel Portable Generator, 28,000 Peak Watts
With 20,000 running watts on gasoline, the WGen20000TFc is the capacity leader among these five options, giving buyers more room to cover large backup loads than the Westinghouse 14,500-Watt model or the DuroMax XP15000HXT. Its output still changes by fuel: the rating drops to 18,000 watts on propane and 16,000 on natural gas. A 125A terminal block supports hardwired connections, while remote start and multiple transfer-switch-ready outlets offer other setup paths. Low THD and a CO sensor broaden its backup appeal. That scale comes with a substantial 999cc V-twin engine and a 17.2-gallon tank, so moving and storing it takes planning; hardwiring also calls for a licensed electrician. Its runtime claim is up to 15 hours at just 25% load, so it gives less guidance for heavier use.
Pros:- Highest stated running output in this group: 20,000 watts on gasoline
- Runs on gasoline, propane, and natural gas with output listed for each
- 125A terminal block and multiple transfer-switch-ready outlets
- Remote start, low-THD output, and CO sensor
Cons:- Large engine and 17.2-gallon tank make it cumbersome to maneuver and store
- Hardwired connection requires a licensed electrician
- Runtime is specified only at 25% load
Best for: Homeowners planning high-capacity backup with a transfer switch or professionally installed hardwired connection
Not ideal for: Buyers who need easy portability, compact storage, or runtime estimates for heavier loads
- Fuel types:Gasoline, propane, natural gas
- Peak output:28,000 W gasoline; 25,200 W propane; 22,400 W natural gas
- Running output:20,000 W gasoline; 18,000 W propane; 16,000 W natural gas
- Engine:999cc 4-stroke OHV V-twin
- Fuel tank:17.2 gallons
- Runtime:Up to 15 hours at 25% load
- Power quality:Less than 5% THD
- Starting:Push-button electric start and remote start key fob
- Hardwire connection:125A 240V AC terminal block
Our verdict“Choose the WGen20000TFc when your backup plan needs capacity beyond the other listed models and you have space for a large generator.”
DuroMax XP13000HXT 13,000-Watt Tri-Fuel Portable Generator
The DuroMax XP13000HXT pairs 10,500 running watts on gasoline with a remote start, which can save a trip outside when the generator is positioned away from the house. Its 50-amp transfer switch-ready outlet and CO Alert also make it a practical fit for home backup. Compared with the Westinghouse WGen9500TFc, it offers more gasoline running power, while the Westinghouse lists up to 12 hours of runtime on its smaller tank. The DuroMax’s listed runtime is 8 hours from an 8.3-gallon tank, so buyers should plan for more frequent refueling during extended outages. Its three fuel options add flexibility, but the listed output figures are for gasoline; available power can vary by fuel.
Pros:- Runs on gasoline, propane, or natural gas
- Remote and push-button electric starting
- 50-amp transfer switch-ready outlet
- CO Alert safety feature
Cons:- Listed runtime is 8 hours, so extended use calls for refueling
- The supplied data gives no separate output figures for propane or natural gas
Best for: Homeowners who want remote starting and enough gasoline output to run several household essentials through a transfer switch.
Not ideal for: Buyers prioritizing long stretches between refueling, since its listed runtime is 8 hours, or shoppers seeking a light generator for frequent transport.
- Peak wattage:13,000 watts
- Running wattage:10,500 watts
- Fuel types:Gasoline, propane, natural gas
- Engine:500 cc four-stroke OHV
- Fuel tank:8.3 gallons
- Listed runtime:8 hours
- Starting:Electric push-button and remote
- Safety feature:CO Alert
Our verdict“Choose the XP13000HXT if remote starting and 10,500 gasoline running watts matter more than longer listed runtime.”
GENMAX GM15000ET Tri-Fuel Portable Generator
The GENMAX GM15000ET is the power-focused choice here, with 11,000 rated watts and 15,000 peak watts listed. That rated figure exceeds the gasoline running output listed for the DuroMax XP13000HXT, making the GENMAX a stronger match for buyers planning to supply multiple large loads at once. Its one-button, remote, and recoil starting options give owners alternatives if convenience features or battery power are unavailable, and the digital display helps track operating information. The tradeoff is portability: a 10.56-gallon tank and high-output design may be awkward to move, and the supplied product data gives no weight or noise figure to help judge placement. It runs on three fuels, though fuel-specific output numbers are not provided.
Pros:- 11,000 rated watts and 15,000 peak watts
- Gasoline, LPG, and natural gas compatibility
- One-button, remote, and recoil starting
- Digital display and built-in CO detection
Cons:- Large tank and high-output design may complicate transport
- Weight and noise level are not specified in the supplied data
- Fuel-specific output figures are not provided
Best for: Households needing high rated output for several large backup loads and who can keep the generator in a fixed, accessible location.
Not ideal for: Buyers who need a generator they can move often or who want published weight, noise, and fuel-specific output details before choosing.
- Peak power:15,000 watts
- Fuel types:Gasoline, LPG, natural gas
- Fuel tank:10.56 gallons
- Starting:One-button, remote, recoil
- Voltage:120V/240V
- Display:Digital display
- Safety feature:Built-in CO detection
- Warranty:3 years
Our verdict“Pick the GM15000ET for its high listed rated output if portability details are less important to your setup.”
WEN 14,500-Watt Tri-Fuel Generator with Electric Start
The WEN 14,500-Watt Tri-Fuel Generator spells out running and surge output for each fuel, making it easier to match a backup plan to the fuel you expect to use. It provides 11,500 running watts on gasoline and 8,750 on natural gas; by comparison, the Westinghouse WGen9500TFc lists 7,500 running watts on natural gas. That difference can matter when a home is set up for a natural gas connection, though buyers still need to size loads against actual running watts. The WEN includes a 14-50R outlet, CO shutdown sensor, and wheel and handle kit. Gasoline runtime reaches 12 hours at half load, while the natural gas hose is sold separately, adding a setup item for buyers who plan to use that fuel.
Pros:- Running and surge wattage specified for all three fuels
- Up to 11,500 running watts on gasoline
- 14-50R outlet supports compatible home backup setups
- CO shutdown sensor and wheel and handle kit included
Cons:- Natural gas hose is sold separately
- Heavy-duty output and equipment may make it bulky to move
Best for: Homeowners comparing backup capacity across fuel sources, especially those who want to plan around natural gas output.
Not ideal for: Buyers who need natural gas hookup accessories in the box or who want a compact generator for regular transport.
- Fuel types:Gasoline, propane, natural gas
- Running watts:11,500 gasoline; 10,300 propane; 8,750 natural gas
- Surge watts:14,500 gasoline; 12,500 propane; 10,500 natural gas
- Engine:500 cc four-stroke OHV
- Gas tank:8.2 gallons
- Gasoline runtime:Up to 12 hours at half load
- Voltage:120V/240V
- Starting:Electric start with recoil backup
- Safety feature:WEN Watchdog CO shutdown sensor
Our verdict“Choose this WEN if fuel-specific capacity figures are central to planning your home backup loads.”
Westinghouse WGen9500TFc Tri-Fuel Portable Generator
The Westinghouse WGen9500TFc takes a more measured output approach than the DuroMax XP13000HXT, with 9,500 running watts on gasoline and a listed runtime of up to 12 hours from its 6.6-gallon tank. That runtime figure makes it a candidate for longer stretches between refueling, though the supplied data does not state the load used for that claim, so it is not directly comparable to every runtime figure in this lineup. Remote, electric, and recoil starting give owners several ways to get it running, while the 14-50R outlet supports compatible home backup setups. It also includes an L14-30R outlet and automatic low-oil and carbon monoxide shutdown. Assembly is required, and its heavy-duty build may make moving it a two-person job.
Pros:- Runs on gasoline, propane, or natural gas
- Up to 12 hours of stated gasoline runtime
- Remote, electric, and recoil starting
- 14-50R outlet and automatic low-oil and CO shutdown
Cons:- Lower gasoline running output than the DuroMax XP13000HXT
- Some assembly is required
- Heavy-duty design may be difficult to move
Best for: Homeowners who want multiple starting methods, home backup outlets, and a longer stated gasoline runtime for outage use.
Not ideal for: Buyers who need the highest running output in this group or a generator that is easy to carry and store.
- Fuel types:Gasoline, propane, natural gas
- Gasoline output:12,500 peak; 9,500 running watts
- Propane output:11,200 peak; 8,500 running watts
- Natural gas output:9,500 peak; 7,500 running watts
- Engine:457 cc four-stroke OHV
- Fuel tank:6.6 gallons
- Runtime:Up to 12 hours
- Starting:Remote, electric, recoil
- Safety features:Automatic low-oil and carbon monoxide shutdown
Our verdict“Choose the WGen9500TFc if its stated runtime and flexible starting options outweigh the need for more than 9,500 gasoline running watts.”
Westinghouse 13,500-Watt Tri-Fuel Portable Generator with Remote Electric Start
This Westinghouse 13,500-watt generator combines 10,500 gasoline running watts with a stated up to 19 hours of runtime, giving it a stronger case for long operating stretches than the WGen9500TFc’s listed 12 hours. The supplied data does not state the load behind either runtime claim, so buyers should treat them as reference points rather than guaranteed outage durations. Remote, electric, and recoil starting, plus low-oil and carbon monoxide shutdown, suit a home backup setup where convenient starts and basic safeguards matter. Its gasoline, propane, and natural gas output figures are also listed separately, unlike the DuroMax XP13000HXT data, which gives no fuel-specific breakdown. The 9.5-gallon tank and 500cc engine add capacity, but also make this a bulky unit; some assembly is required.
Pros:- Up to 19 hours of stated runtime
- Separate output figures for gasoline, propane, and natural gas
- Remote, electric, and recoil starting
- Automatic low-oil and carbon monoxide shutdown
Cons:- Bulky 500cc design can make handling and storage difficult
- Some assembly is required
- The runtime claim does not specify the load in the supplied data
Best for: Households seeking substantial gasoline output and a long stated runtime, with room to store a large portable generator.
Not ideal for: Buyers who need an easy-to-move unit or who require runtime estimates tied to a stated load.
- Fuel types:Gasoline, propane, natural gas
- Gasoline output:13,500 peak; 10,500 running watts
- Propane output:12,500 peak; 9,500 running watts
- Natural gas output:10,000 peak; 8,500 running watts
- Engine:500 cc four-stroke OHV
- Fuel tank:9.5 gallons
- Maximum runtime:Up to 19 hours
- Starting:Remote, electric, recoil
- Warranty:3-year limited service, labor, and parts coverage
Our verdict“Pick this Westinghouse if long stated runtime and fuel-specific output figures suit your backup plan and you can accommodate its size.”
How We Picked
I ranked these generators around the decisions buyers face when choosing tri-fuel backup power: usable output, fuel flexibility, startup controls, generator type, and fit for likely loads. I gave higher placement to models that combine broad household backup potential with practical usability, while recognizing that a smaller or inverter-style option can be a better match for a different buyer.
Within the lineup, the WGen14500TFc leads as a balanced high-output conventional portable option; the iGen8200TFc earns a distinct place for buyers prioritizing inverter design, and the WGen20000TFc is aimed at the highest-demand use cases. The remaining order reflects differences in output class, starting features, and role rather than treating peak wattage as the only measure. Since fuel-specific output, included accessories, and operating details can vary, buyers should confirm the current manufacturer specifications against their intended loads.
| tri-fuel generator | Fuel types |
|---|---|
| DuroStar DS13000MXT 13,000-Wat | Gasoline, propane, natural gas |
| Westinghouse WGen14500TFc Tri- | Gasoline, propane, natural gas |
| WEN TF-1450 14,500-Watt Tri-Fu | Gasoline, propane, natural gas |
| Westinghouse iGen8200TFc Tri-F | Gasoline, propane, natural gas |
| Westinghouse iGen12000TFc Tri- | Gasoline, propane, natural gas |
| Westinghouse 14,500-Watt Tri-F | Gasoline, propane, natural gas |
| DuroMax XP15000HXT 15,000-Watt | Gasoline, propane, natural gas |
| Generac 12,500-Watt Tri-Fuel P | Gasoline, liquid propane, natural gas |
| WEN 13,000-Watt Tri-Fuel Inver | Gasoline, propane, natural gas |
| Westinghouse WGen20000TFc Tri- | Gasoline, propane, natural gas |
| DuroMax XP13000HXT 13,000-Watt | Gasoline, propane, natural gas |
| GENMAX GM15000ET Tri-Fuel Port | Gasoline, LPG, natural gas |
| WEN 14,500-Watt Tri-Fuel Gener | Gasoline, propane, natural gas |
| Westinghouse WGen9500TFc Tri-F | Gasoline, propane, natural gas |
| Westinghouse 13,500-Watt Tri-F | Gasoline, propane, natural gas |
Factors to Consider When Choosing Best Tri-fuel Generators
Choosing a tri-fuel generator starts with the loads you need to run and the fuel sources you can actually access. These broader checks can prevent paying for unused capacity or discovering that a preferred fuel setup does not suit your home.
Size the Generator Around Running and Starting Loads
List the appliances you expect to run at the same time, then separate their normal running watts from the brief surge needed at startup. Motors in pumps, refrigerators, and air conditioners can demand a sharp burst that a simple sum of running watts misses. Decide which loads are essential during an outage and which can take turns, since load scheduling may let you choose a smaller generator. Compare the wattage figures for the fuel you plan to use, because output can differ between gasoline, propane, and natural gas. Choosing by the largest advertised peak number alone can leave you short during sustained use. A modest capacity buffer helps with startup surges, but excess capacity adds weight and fuel demand.
Check Fuel Access Before Prioritizing Flexibility
Tri-fuel capability is useful only when the connections and fuel supply match your situation. Gasoline is widely available but needs careful storage and periodic rotation, while propane can be stored for longer when handled properly. Natural gas may offer a convenient supply at a home with a suitable connection, but outages can affect utility service and installation requirements vary. Confirm what hoses, regulators, and fittings are included rather than assuming every fuel is ready to connect out of the box. Never improvise a gas connection; follow the generator maker’s instructions and local requirements. The right choice is the one that gives you a workable backup plan across realistic outage conditions.
Choose Inverter or Conventional Design by the Loads You Run
Inverter models in this roundup combine tri-fuel flexibility with a design often chosen for more stable power and variable engine speed. That can appeal to buyers running sensitive electronics, though the exact power quality and operating modes should be checked in the product specifications. Conventional portable generators often offer higher output for their class, which can better match whole-home essentials or larger motor loads. Do not assume an inverter model is automatically quiet or that a conventional generator cannot run electronics; compare published noise and power-quality details. Also weigh rated output against portability, since higher-capacity frames can be difficult to move. Pick the design that suits your load profile instead of treating either category as universally better.
Plan for Safe Placement and Transfer Equipment
A portable generator needs an outdoor operating location away from doors, windows, and vents, with exhaust directed away from occupied spaces. Carbon monoxide sensors or alerts can add a layer of awareness, but they do not make indoor or enclosed operation safe. If you want to power household circuits, ask a qualified electrician about a transfer switch or other approved connection; never connect a generator directly to a home outlet. Check cord ratings, outlet types, and the distance from the generator to the loads before an outage. Remote start may make startup easier, but it does not remove the need to inspect the site and follow operating instructions. Consider these installation and safety needs before settling on a model or its location.
Compare Startup, Maintenance, and Storage Needs
Electric or remote start can help when pull starting is difficult or when the generator sits in a planned backup location. Those features depend on a charged battery and regular upkeep, so understand how to maintain the starting system as well as the engine. Read the maintenance schedule for oil changes, filters, and fuel-system care, especially if the unit will sit between outages. Stored gasoline requires attention, while propane storage and natural-gas connection arrangements bring their own handling details. Buyers sometimes focus on start buttons and overlook how they will test the generator periodically. Favor a control setup you can maintain confidently, not only one that looks convenient on paper.
Frequently Asked Questions
How do I know whether I need a 9,500-watt model or a 14,500-watt model?
Start with the appliances you need at the same time, including the largest motor startup surge, and compare that total with rated running watts. The WGen9500TFc represents the lower-output end of this group, while options such as the WGen14500TFc and WEN TF-1450 offer a higher output class. A smaller generator can be enough if you rotate loads, but that means managing what runs together during an outage. Check the output for your chosen fuel, since gasoline, propane, and natural gas figures may differ. If you are unsure about household circuits, have an electrician help map the loads before buying.
Is an inverter tri-fuel generator a better choice for computers and other electronics?
An inverter model may be appealing when sensitive electronics are among your loads, and this roundup includes the Westinghouse iGen8200TFc and iGen12000TFc. Still, the label alone is not enough to decide: check the manufacturer’s specifications for power quality, total harmonic distortion, and the outlets you need. Compare those details with the electronics makers’ requirements. A conventional generator may provide more output for larger loads, so the choice involves both power quality and capacity. Use appropriate surge protection and follow the operating guidance for the equipment you connect.
Can I run a tri-fuel generator from my home’s natural-gas line?
Some tri-fuel generators support natural gas, but a compatible appliance connection and correct setup are required. Check the model’s instructions for supply pressure, hose and fitting requirements, and any limits on output while using natural gas. A household line may not provide the flow or connection a particular generator needs, and utility service can be disrupted during some emergencies. Have installation questions reviewed by a qualified professional and follow local rules. Keep another fuel option available if uninterrupted gas supply is not assured.
Does remote start mean I can run the generator from inside my house?
No. Remote start is a convenience for starting the unit from a distance; it does not change where a generator can operate safely. The generator must remain outdoors in a location that keeps exhaust away from doors, windows, and air intakes, following the manufacturer’s instructions. Carbon monoxide alerts are a useful feature on some models, but they are not permission to use a generator indoors or in an enclosed space. Plan the outdoor site and cord routing before an outage. For household circuits, use approved transfer equipment installed as required.
Should I pay for the highest-output model if I want whole-home backup?
Not automatically. A high-output option such as the WGen20000TFc may suit buyers with substantial simultaneous loads, but many homes can cover essential circuits with a smaller generator and a clear load plan. The generator’s rating does not tell you which household circuits can be connected safely or whether your largest appliances can start together. Ask an electrician to identify essential loads and recommend compatible transfer equipment. Then compare that plan with the generator’s rated output on your intended fuel. This approach can prevent buying more capacity than your setup can use.
Conclusion
I recommend the Westinghouse WGen14500TFc as the best overall for buyers who want high portable output and remote electric start in one package. The WEN TF-1450 is my best value-style pick for shoppers focused on a high-output electric-start option, while the WGen20000TFc is the premium choice for buyers whose load plan calls for the greatest capacity in this group. For beginners who want a more manageable output class, the Westinghouse WGen9500TFc is a sensible starting point. Choose the iGen8200TFc for a compact inverter-style role or the iGen12000TFc when you want inverter design with more output; match either to verified load and fuel specifications before deciding.
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