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Key Takeaways
- The WGen14500TFc is my best overall pick because it pairs high output with remote electric start and a CO sensor; its size makes portability a compromise.
- The WGen20000TFc is the lineup’s high-output choice, while its large capacity makes it more generator than many households need.
- The iGen12000TFc and iGen8200TFc are the inverter options here, giving buyers an alternative to the lineup’s many conventional portable models.
- Several picks cluster around 13,000 to 15,000 watts, so fuel flexibility and controls help distinguish models with similar advertised output.
- The list includes models from Westinghouse, DuroStar, DuroMax, WEN, Generac, and GENMAX, but the product names alone do not establish equivalent output under every fuel.
| Westinghouse WGen14500TFc Tri-Fuel Portable Generator with Remote Electric Start and CO Sensor |  | Best Overall for Larger Homes | 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 |
| DuroStar DS13000MXT 13,000-Watt Tri-Fuel Portable Generator |  | Best for Straightforward Backup | Model: DS13000MXT | Listed power output: 13,000 watts | Engine displacement: 500 cc | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen20000TFc Tri-Fuel Portable Generator, 28,000 Peak Watts |  | Best for Maximum Backup Capacity | Fuel types: Gasoline, propane, natural gas | Running output: 20,000 W gasoline; 18,000 W propane; 16,000 W natural gas | Peak output: 28,000 W gasoline; 25,200 W propane; 22,400 W natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse iGen12000TFc Tri-Fuel Portable Inverter Generator |  | Best Inverter Pick | 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 |
| WEN 14,500-Watt Tri-Fuel Generator with Electric Start |  | Best for Half-Load Runtime | 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 13,500-Watt Tri-Fuel Portable Generator with Remote Electric Start |  | Best for Long Gasoline Runtime | Fuel types: Gasoline, propane, natural gas | Gasoline output: 13,500 peak watts; 10,500 running watts | Propane output: 12,500 peak watts; 9,500 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen9500TFc 12500 Peak Watt Tri-Fuel Portable Backup Generator |  | Best for Mid-Range Home Backup | Fuel types: Gasoline, propane, natural gas | Gasoline output: 12,500 peak watts; 9,500 running watts | Propane output: 11,200 peak watts; 8,500 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| DuroMax XP15000HXT 15,000-Watt Tri-Fuel Portable Generator with CO Alert |  | Best for High Peak Output | Fuel types: Gasoline, propane, natural gas | Power output: 15,000 watts | Engine: 500cc OHV | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse 14,500-Watt Tri-Fuel Portable Generator with Remote Electric Start |  | Best for Sensitive Electronics | 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 |
| WEN 13,000-Watt Tri-Fuel Inverter Generator with Electric Start |  | Best for Inverter-Style Versatility | 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 |
| Generac 12,500-Watt Tri-Fuel Portable Generator with Electric Start |  | Best for Load Management | Fuel types: Gasoline, liquid propane, natural gas | Running output: 9,500 watts | Starting output: 12,500 watts on gasoline | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse iGen8200TFc Tri-Fuel Portable Inverter Generator |  | Best for Sensitive Electronics | Fuel types: Gasoline, propane, natural gas | Gasoline output: 6,600 running watts / 8,200 peak watts | Propane output: 5,940 running watts / 7,380 peak watts | VIEW LATEST PRICE | See Our Full Breakdown |
| WEN TF-1450 14,500-Watt Tri-Fuel Generator with Electric Start |  | Best for High-Capacity Backup | Fuel types: Gasoline, propane, natural gas | Gasoline output: 11,500 running watts / 14,500 surge watts | Propane output: 10,300 running watts / 12,500 surge watts | VIEW LATEST PRICE | See Our Full Breakdown |
| GENMAX GM15000ET Tri-Fuel Portable Generator |  | Best for Remote Starting | Model: GM15000ET | Peak power: 15,000W | Fuel types: Gasoline, LPG, natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| DuroMax XP13000HXT 13,000-Watt Tri-Fuel Portable Generator |  | Best for Remote-Start Convenience | Fuel types: Gasoline, propane, natural gas | Running wattage: 10,500 watts | Peak wattage: 13,000 watts | VIEW LATEST PRICE | See Our Full Breakdown |
| tri-fuel generator | Fuel types | Engine |
|---|---|---|
| Westinghouse WGen14500TFc Tri- | Gasoline, propane, natural gas | 713cc Westinghouse V-Twin OHV |
| DuroStar DS13000MXT 13,000-Wat | Gasoline, propane, natural gas | — |
| Westinghouse WGen20000TFc Tri- | Gasoline, propane, natural gas | 999cc 4-stroke OHV V-Twin |
| Westinghouse iGen12000TFc Tri- | Gasoline, propane, natural gas | 457cc 4-stroke OHV |
| WEN 14,500-Watt Tri-Fuel Gener | Gasoline, propane, natural gas | 500cc 4-stroke OHV |
| Westinghouse 13,500-Watt Tri-F | Gasoline, propane, natural gas | 500cc 4-stroke OHV |
| Westinghouse WGen9500TFc 12500 | Gasoline, propane, natural gas | 457cc 4-stroke OHV with cast iron sleeve |
| DuroMax XP15000HXT 15,000-Watt | Gasoline, propane, natural gas | 500cc OHV |
| Westinghouse 14,500-Watt Tri-F | Gasoline, propane, natural gas | 550cc 4-stroke OHV |
| WEN 13,000-Watt Tri-Fuel Inver | Gasoline, propane, natural gas | — |
| Generac 12,500-Watt Tri-Fuel P | Gasoline, liquid propane, natural gas | 500cc Generac OHV |
| Westinghouse iGen8200TFc Tri-F | Gasoline, propane, natural gas | 298cc 4-stroke OHV with cast iron sleeve |
| WEN TF-1450 14,500-Watt Tri-Fu | Gasoline, propane, natural gas | 500cc 4-stroke OHV |
| GENMAX GM15000ET Tri-Fuel Port | Gasoline, LPG, natural gas | — |
| DuroMax XP13000HXT 13,000-Watt | Gasoline, propane, natural gas | 500cc four-stroke OHV |
More Details on Our Top Picks
Westinghouse WGen14500TFc Tri-Fuel Portable Generator with Remote Electric Start and CO Sensor
The WGen14500TFc is a strong fit for households that need substantial backup output and want the choice of gasoline, propane, or natural gas. It delivers 14,500 running watts on gasoline and 11,600 on natural gas, giving it more headroom than the DuroStar DS13000MXT’s listed 13,000-watt output. Remote and push-button starts make startup more convenient, while its 50A outlet supports a transfer-switch setup. The less-than-5% THD rating and CO shutdown add useful protection for backup use. The tradeoff is its size and weight, which make moving it a challenge, and the stated 16-hour runtime applies only at 25% load on gasoline. Choose it for capacity and flexibility; skip it if compact storage is a priority.
Pros:- Runs on gasoline, propane, or natural gas
- 14,500 gasoline running watts and a 50A outlet suit substantial home backup needs
- Remote and push-button electric start
- CO shutdown and less-than-5% THD rating
Cons:- Large, heavy design can be difficult to maneuver
- Runtime figure is specified only at 25% load on gasoline
Best for: Homeowners seeking high-output outage backup with remote starting and the option to connect to a transfer switch
Not ideal for: People who need a generator they can frequently lift or move alone, or who need runtime figures at heavier loads
- 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:713cc Westinghouse V-Twin OHV
- Fuel tank:10.5 gallons
- Runtime:Up to 16 hours at 25% load on gasoline
- THD:Less than 5%
- Starting:Push-button and remote electric start
- Safety:CO shutdown; automatic low-oil shutdown
Our verdict“Choose the WGen14500TFc for high-capacity, three-fuel home backup with convenient remote starting, provided its size fits your storage and handling plans.”
DuroStar DS13000MXT 13,000-Watt Tri-Fuel Portable Generator
The DuroStar DS13000MXT covers the essentials for buyers who want three fuel choices, electric starting, and a 50A transfer-switch-ready outlet without relying on a long list of extras. Its CO Alert automatic shutdown adds a safety feature for outage use, and its 500cc engine is smaller in displacement than the WGen14500TFc’s 713cc V-Twin. The available information lists a 13,000-watt output, but does not break that figure into running and peak ratings or provide fuel-specific output and runtime details. That makes capacity planning less clear than with the WGen14500TFc. This is a simpler match for buyers whose needs fit the stated output and who value a basic three-fuel setup; skip it if you need detailed performance figures before choosing a generator.
Pros:- Accepts gasoline, propane, or natural gas
- Push-button electric start
- Transfer-switch-ready 50A outlet
- CO Alert automatic shutdown
Cons:- Runtime details are not provided
- The 13,000-watt figure is not separated into running and peak output
Best for: Homeowners who want a three-fuel generator with electric start, a 50A connection, and CO shutdown
Not ideal for: Buyers who need fuel-by-fuel running wattage or runtime figures to size backup loads precisely
- Model:DS13000MXT
- Listed power output:13,000 watts
- Engine displacement:500 cc
- Fuel types:Gasoline, propane, natural gas
- Starting:Push-button electric start
- Outlet:Transfer-switch-ready 50A outlet
- Safety:CO Alert automatic shutdown
Our verdict“Pick the DS13000MXT if its stated 13,000-watt capacity meets your needs and you want a straightforward three-fuel setup with CO shutdown.”
Westinghouse WGen20000TFc Tri-Fuel Portable Generator, 28,000 Peak Watts
For buyers who need a large reserve of power, the WGen20000TFc leads this group with 20,000 gasoline running watts and 16,000 running watts on natural gas. That gives it substantially more capacity than the WGen14500TFc, including when using natural gas. A 125A terminal block adds a hardwire option alongside its multiple transfer-switch-ready outlets, making the generator more adaptable to a large home backup setup. Remote starting, wheels, and a lift bracket help with operation and handling, though the 999cc engine and overall size still make it a substantial machine. Its 15-hour runtime is specified at 25% load on gasoline, so that figure does not describe heavier backup use. Choose it when output is the priority; the smaller WGen14500TFc is easier to justify when its capacity is sufficient.
Pros:- Highest listed running output in this batch, including 16,000 W on natural gas
- 125A terminal block plus multiple transfer-switch-ready outlets
- Remote electric start
- Wheels and lift bracket support handling
Cons:- Large 999cc engine and high output make it cumbersome to maneuver
- Hardwiring requires a licensed electrician
- 15-hour runtime applies at 25% load on gasoline
Best for: Owners of large homes or demanding backup systems who need high running output and a hardwire connection option
Not ideal for: Buyers with modest loads, tight storage, or limited ability to maneuver a large generator
- Fuel types:Gasoline, propane, natural gas
- Running output:20,000 W gasoline; 18,000 W propane; 16,000 W natural gas
- Peak output:28,000 W gasoline; 25,200 W propane; 22,400 W natural gas
- Engine:999cc 4-stroke OHV V-Twin
- Fuel tank:17.2 gallons
- Runtime:Up to 15 hours at 25% load
- THD:Less than 5%
- Hardwire connection:125A, 240V AC terminal block
- Starting:Push-button electric start and remote start key fob
Our verdict“Choose the WGen20000TFc when your backup loads call for unusually high capacity and a hardwire option, and you have room for its large frame.”
Westinghouse iGen12000TFc Tri-Fuel Portable Inverter Generator
The iGen12000TFc is the inverter choice for buyers who want substantial backup output with a quieter listed operating level and a low distortion rating. Its THD of 3% or less is lower than the conventional WGen14500TFc’s less-than-5% figure, making this a better fit for loads where cleaner power matters. It also runs on all three fuels, has a 50A outlet, and supports parallel operation. Its gasoline output tops out at 9,000 running watts, well below the WGen14500TFc’s 14,500, so it gives up capacity for inverter features and a 64 dBA minimum noise figure. The 19-hour runtime is stated at 25% load. Choose this model for sensitive electronics and lower noise; look to the WGen14500TFc if you need more running watts.
Pros:- THD of 3% or less
- Runs on gasoline, propane, or natural gas
- Parallel capability and remote start
- Listed noise level as low as 64 dBA
Cons:- Gasoline running output is lower than the WGen14500TFc
- Runtime figure applies at 25% load
- Large, heavy-duty design may be difficult to transport
Best for: Households that want inverter power for electronics, a 50A backup connection, and a lower listed noise level
Not ideal for: Buyers who need the higher running capacity of the WGen14500TFc or expect runtime figures at heavy loads
- 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:457cc 4-stroke OHV
- Fuel tank:7.9 gallons
- Runtime:Up to 19 hours at 25% load
- Noise level:As low as 64 dBA
- THD:3% or less
- Features:Remote start, parallel capability, CO sensor, low-oil shutdown, Eco Mode, digital display
Our verdict“Choose the iGen12000TFc for inverter features, lower listed noise, and cleaner power when 9,000 gasoline running watts is enough.”
WEN 14,500-Watt Tri-Fuel Generator with Electric Start
The WEN 14,500-Watt Tri-Fuel stands apart from the Westinghouse WGen14500TFc by stating gasoline runtime at half load, rather than at 25%. Its listed 12 hours at that load gives buyers a more demanding reference point for planning a sustained outage, though actual runtime varies with use. It supplies 11,500 running watts on gasoline and 8,750 on natural gas, below the WGen14500TFc on both fuels. Electric start has recoil backup, and the wheel and handle kit helps with moving a bulky machine. The natural gas hose is sold separately, adding a setup item for buyers who plan to use that fuel. Choose it if the half-load runtime figure and manual starting backup matter more than maximum output.
Pros:- Runs on gasoline, propane, or natural gas
- 12-hour gasoline runtime specified at half load
- Electric start with recoil backup
- Wheel and handle kit and CO shutdown sensor
Cons:- Natural gas hose is sold separately
- Lower listed running output than the WGen14500TFc
- Heavy-duty size may be bulky to transport
Best for: Homeowners who want three-fuel flexibility, electric start with recoil backup, and a runtime figure specified at half load
Not ideal for: Natural gas users who want the hose included, or buyers who need more output than 11,500 gasoline running watts
- 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:500cc 4-stroke OHV
- Gas tank:8.2 gallons
- Runtime:Up to 12 hours at half load on gasoline
- Voltage:120V/240V
- Starting:Electric start with recoil backup
- Safety:WEN Watchdog CO shutdown sensor
Our verdict“Pick the WEN if you value a stated half-load runtime and recoil backup, and can source the natural gas hose separately if needed.”
Westinghouse 13,500-Watt Tri-Fuel Portable Generator with Remote Electric Start
Up to 19 hours of runtime from its 9.5-gallon tank gives this Westinghouse an edge for buyers who want fewer refueling stops during an outage. Its 10,500 running watts on gasoline and 50-amp outlet suit substantial home backup loads, while propane and natural gas offer alternatives when gasoline is scarce. Remote, electric, and recoil starting give more ways to get it running than the WEN 13,000-watt inverter model, whose listed runtime is shorter. The tradeoff is size: the 500cc engine and large tank make this a substantial machine to move, even with its broad outlet selection. It also needs some assembly. I’d rank it for extended backup use, though buyers prioritizing a smaller footprint should look elsewhere.
Pros:- Runs on gasoline, propane, or natural gas
- Up to 19 hours of runtime on its 9.5-gallon gasoline tank
- Remote, electric, and recoil starting
- 50-amp outlet plus automatic low-oil and carbon monoxide shutdown
Cons:- Large 500cc engine and tank make it bulky to handle
- Requires some assembly
Best for: Homeowners who want long gasoline run time and enough output for several essential circuits or an RV connection
Not ideal for: Buyers who need a generator they can lift or store in a compact space; its large engine and fuel tank add bulk
- Fuel types:Gasoline, propane, natural gas
- Gasoline output:13,500 peak watts; 10,500 running watts
- Propane output:12,500 peak watts; 9,500 running watts
- Natural gas output:10,000 peak watts; 8,500 running watts
- Engine:500cc 4-stroke OHV
- Fuel tank and runtime:9.5 gallons; up to 19 hours
- Starting methods:Remote, electric, recoil
- Outlets:Two 120V 5–20R 20A; one 120V L14-30R 30A; one 120/240V 14–50R 50A
- Safety and warranty:Automatic low-oil and CO shutdown; 3-year limited service, labor, and parts coverage
Our verdict“Choose this Westinghouse if long gasoline runtime and high home-backup output matter more than easy handling.”
Westinghouse WGen9500TFc 12500 Peak Watt Tri-Fuel Portable Backup Generator
The WGen9500TFc is a practical fit for backup buyers who need less output than the larger Westinghouse 13,500-watt model but still want transfer-switch and RV connections. It supplies 9,500 running watts on gasoline, with lower output on propane and natural gas, so fuel choice brings a real capacity tradeoff. Its 6.6-gallon tank runs for up to 12 hours, shorter than the 19-hour claim for the 13,500-watt Westinghouse, but the listed output and runtime make this a more restrained backup option. Remote, push-button, and recoil starts give useful flexibility, and the GFCI outlets, CO shutdown, and low-oil shutdown add safeguards. It remains heavy and bulky, and the wheels help with rolling rather than lifting.
Pros:- Tri-fuel operation with published output for each fuel
- Remote, electric, and recoil starting
- Transfer-switch-ready L14-30R and RV-ready 14-50R outlets
- GFCI outlets plus automatic low-oil and CO shutdown
Cons:- Up to 12 hours of runtime is shorter than the 19 hours listed for the Westinghouse 13,500-watt model
- Heavy, bulky frame remains difficult to lift or maneuver in tight spaces
Best for: Homeowners seeking tri-fuel backup with transfer-switch and RV-ready outlets without stepping up to the largest models
Not ideal for: Buyers who need the longest refueling interval or maximum output for many high-demand appliances at once
- Fuel types:Gasoline, propane, natural gas
- Gasoline output:12,500 peak watts; 9,500 running watts
- Propane output:11,200 peak watts; 8,500 running watts
- Natural gas output:9,500 peak watts; 7,500 running watts
- Engine:457cc 4-stroke OHV with cast iron sleeve
- Fuel tank and runtime:6.6 gallons; up to 12 hours
- Starting methods:Remote key fob, electric push-button, recoil
- Outlets:Two 120V 5-20R GFCI; one 120V L14-30R; one 120/240V 14-50R
- Safety and portability:Automatic low-oil and CO shutdown; never-flat wheels, handle, lift bracket
Our verdict“Pick the WGen9500TFc for capable, flexible home backup when its mid-range output and shorter runtime meet your needs.”
DuroMax XP15000HXT 15,000-Watt Tri-Fuel Portable Generator with CO Alert
With 15,000 watts of stated power output, the XP15000HXT is the pick here for buyers whose priority is a high-capacity tri-fuel unit. Its 500cc OHV engine and 50-amp outlet support substantial loads, while four GFCI 120V outlets and additional twist-lock connections provide several ways to distribute power. Compared with the Westinghouse 14,500-watt model, this DuroMax emphasizes peak output and adds an LED display that reports fuel level, load, voltage, frequency, and time. The published information here does not give fuel-specific running wattage or runtime, however, making it harder to estimate sustained capacity and refueling needs. Remote and push-button starts are convenient, but the large engine makes transport a challenge.
Pros:- Runs on gasoline, propane, and natural gas
- 15,000-watt stated output and a 120/240V 50A outlet
- LED display shows gas level, load, voltage, frequency, and time
- Push-button and remote starting with CO Alert automatic shutdown
Cons:- No runtime or fuel-consumption figures are provided
- The large 500cc engine makes the generator bulky to transport
Best for: Homeowners or jobsite operators who need high stated output, several outlet types, and a 50-amp connection
Not ideal for: Buyers who need published fuel-specific running wattage and runtime to size loads or plan refueling
- Fuel types:Gasoline, propane, natural gas
- Power output:15,000 watts
- Engine:500cc OHV
- Starting:Push-button and remote
- Outlets:Four 120V 20A GFCI; one 120V 30A twist lock; one 120/240V 30A twist lock; one 120/240V 50A
- Display:LED gas gauge, load gauge, voltage, frequency, and time
- Safety:CO Alert automatic shutdown
- Windings:100% copper
Our verdict“Choose the XP15000HXT if high stated output and a detailed display suit your backup plan, and you can work with the missing runtime data.”
Westinghouse 14,500-Watt Tri-Fuel Portable Generator with Remote Electric Start
This Westinghouse pairs 11,500 running watts on gasoline with low-THD output, a combination that makes it a strong fit for home backup where sensitive electronics are among the loads. Its listed output stays higher on propane and natural gas than the WGen9500TFc, so switching fuels gives buyers more capacity headroom. The 9.5-gallon tank and up to 19-hour gasoline runtime also suit longer outages with fewer stops for refueling. A built-in fuel gauge and remote electric start add practical convenience. The cost of that capacity is a large 550cc engine and substantial tank, so it is less appealing where storage or movement is tight. Compared with the DuroMax XP15000HXT, this model provides clearer fuel-specific running figures and runtime details.
Pros:- Low-THD output is designed for sensitive electronics
- Strong running output across all three fuel types
- Up to 19 hours on gasoline from a 9.5-gallon tank
- Remote electric start and built-in fuel gauge
Cons:- Large 550cc engine and tank make it less convenient to move
- Propane runtime is listed at up to 7 hours on a 20-pound tank
Best for: Homeowners backing up electronics alongside larger household loads who want tri-fuel flexibility and published runtime figures
Not ideal for: Buyers with limited storage or anyone who needs a generator that is easy to move by hand
- 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
- Tank and gasoline runtime:9.5 gallons; up to 19 hours
- Propane runtime:Up to 7 hours on a 20 lb. tank
- Features:Remote electric start, transfer-switch ready, low-THD output, built-in fuel gauge
- Warranty and compliance:3-year limited service, labor, and parts coverage; EPA compliant
Our verdict“Choose this Westinghouse for long-running, high-output backup that includes sensitive electronics, provided its size fits your storage space.”
WEN 13,000-Watt Tri-Fuel Inverter Generator with Electric Start
The TF1300iX stands apart from the conventional portable units here by pairing tri-fuel operation with an inverter design and a wider mix of connections. Its 120V/240V output supports transfer-switch use and Level 2 vehicle charging, while USB and 12V DC ports give smaller devices direct connections. It supplies 10,500 running watts on gasoline, close to the Westinghouse 13,500-watt model’s listed 10,500 running watts, but the WEN’s stated half-load runtime is just 7.7 hours from a 7.1-gallon tank. That makes fuel planning more pressing than with Westinghouse’s 19-hour option. CO Watchdog shutdown and electric start add convenience; the 550cc engine and wheel kit still mean this is a large machine rather than an easy-to-carry inverter.
Pros:- Tri-fuel inverter design with 120V/240V output
- USB and 12V DC ports supplement household outlets
- Electric start and CO Watchdog automatic shutdown
- Wheel kit supports rolling the large unit
Cons:- Up to 7.7 hours at half load is shorter than the 19-hour claim for the Westinghouse 13,500-watt model
- 550cc engine and high output make it bulky to transport
Best for: Backup-power buyers who want an inverter generator with tri-fuel capability, 120/240V output, and USB or DC charging
Not ideal for: People who need long intervals between refueling or a compact, lightweight generator for frequent transport
- 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
- Voltage and engine:120V/240V; 550cc 4-stroke OHV
- Tank and runtime:7.1 gallons; up to 7.7 hours at half load
- Outlets:Two 120V 5-20R; one 120V/240V 14-50R; one 120V L5-30R; one 120V 10-50R; one 12V DC; two USB
- Safety and warranty:CO Watchdog automatic shutdown; three-year limited warranty
Our verdict“Pick the WEN if inverter design and its varied charging connections matter more to you than long runtime or easy portability.”
Generac 12,500-Watt Tri-Fuel Portable Generator with Electric Start
Generac’s 9,500 running watts give this model a useful middle ground for backup loads that need strong starting capacity without stepping up to the largest machines here. Its 12,500-watt gasoline starting output and 50A outlet suit transfer-switch connections, while AVR and COsense shutdown add power regulation and carbon monoxide protection. Compared with the WEN TF-1450, it offers less running power but weighs 219 pounds, so it remains a substantial unit to move. The electric start and included battery reduce setup effort; the 7.5-gallon tank, however, limits gasoline endurance to up to 9.5 hours at half load. I’d choose it for balanced household backup when WEN’s extra capacity is unnecessary, but skip it if frequent relocation or long gasoline runs are priorities.
Pros:- Runs on gasoline, propane, or natural gas
- 9,500 running watts with 12,500 gasoline starting watts
- COsense shutdown and automatic voltage regulation
- Electric start, battery, LP hose, and wheel kit included
Cons:- 219-pound weight makes frequent repositioning difficult
- 7.5-gallon tank limits gasoline runtime to up to 9.5 hours at half load
Best for: Homeowners seeking substantial transfer-switch backup with CO shutdown and regulated output.
Not ideal for: Buyers who need a lighter generator to move often or longer gasoline runtime between refills.
- Fuel types:Gasoline, liquid propane, natural gas
- Running output:9,500 watts
- Starting output:12,500 watts on gasoline
- Engine:500cc Generac OHV
- Fuel tank:7.5 gallons
- Gasoline runtime:Up to 9.5 hours at 50% load
- Starting method:Electric start with included 12V battery
- Weight:219 lbs
Our verdict“Choose the Generac for substantial, safety-equipped home backup if you can manage its weight and refuel during extended gasoline use.”
Westinghouse iGen8200TFc Tri-Fuel Portable Inverter Generator
Inverter output under 3% THD gives the iGen8200TFc a distinct role: it can serve electronics that call for cleaner power while still offering three fuel choices. Its 50A outlet connects to home backup setups, and the 6,600-watt gasoline running output is enough for a more moderate load than the WEN TF-1450, which supplies 11,500 running watts on gasoline. The smaller Westinghouse is the more suitable pick when power quality and a stated 17-hour runtime at 25% load matter more than maximum capacity. That runtime is tied to a light load, and output falls on propane and natural gas. At around 60 dBA at 25% load, it may also be audible nearby. I’d skip it for buyers whose priority is running many large household loads at once.
Pros:- Inverter output with less than 3% THD
- Tri-fuel capability
- 50A outlet for home backup connections
- Up to 17 hours at 25% load
Cons:- Gasoline output is lower than the WEN TF-1450’s
- The 17-hour runtime applies only at 25% load
- Around 60 dBA at 25% load can be noticeable
Best for: RV owners and households powering computers or other electronics alongside moderate backup loads.
Not ideal for: Buyers who need high running wattage for several large appliances or want quiet operation near occupied spaces.
- Fuel types:Gasoline, propane, natural gas
- Gasoline output:6,600 running watts / 8,200 peak watts
- Propane output:5,940 running watts / 7,380 peak watts
- Natural gas output:5,280 running watts / 6,560 peak watts
- Engine:298cc 4-stroke OHV with cast iron sleeve
- Fuel tank:3.9 gallons
- Runtime:Up to 17 hours at 25% load
- Total harmonic distortion:Less than 3%
- Noise level:Around 60 dBA at 25% load
Our verdict“Pick the iGen8200TFc when clean inverter power and fuel flexibility matter more than the higher output of a conventional backup generator.”
WEN TF-1450 14,500-Watt Tri-Fuel Generator with Electric Start
11,500 running watts on gasoline make the TF-1450 the capacity-focused choice in this batch, with 120V and 240V outlets for household circuits and transfer-switch use. It also keeps meaningful output on other fuels: 10,300 running watts on propane and 8,750 on natural gas. That makes it more capable than the Generac 12,500-Watt model when several loads need to run together, though the bigger output may be unnecessary for a smaller backup plan. The 8.2-gallon tank is listed for up to 12 hours at half load, and the included wheel kit and fuel adapters help with setup. Its runtime figure is still load-specific, and gasoline, propane, and natural gas produce different output levels. I’d pass if a compact or electronics-focused inverter is the better fit.
Pros:- 11,500 running watts on gasoline
- Retains 8,750 running watts on natural gas
- 120V/240V output with L14-30R and 14-50R outlets
- Electric start, wheel kit, and fuel connection accessories included
Cons:- Runtime is specified only at half load
- Available output varies by fuel type
- Large capacity may be more than modest backup needs require
Best for: Homeowners with transfer switches who want to power multiple major circuits during an outage.
Not ideal for: Buyers with modest backup needs, limited storage space, or a preference for inverter power for sensitive electronics.
- Fuel types:Gasoline, propane, natural gas
- Gasoline output:11,500 running watts / 14,500 surge watts
- Propane output:10,300 running watts / 12,500 surge watts
- Natural gas output:8,750 running watts / 10,500 surge watts
- Engine:500cc 4-stroke OHV
- Fuel tank:8.2 gallons
- Runtime:Up to 12 hours at half load
- Starting method:Electric start
- Warranty:3-year limited
Our verdict“Choose the TF-1450 when your backup plan needs more running power than the Generac and you have room for a large conventional generator.”
GENMAX GM15000ET Tri-Fuel Portable Generator
Three starting methods set the GM15000ET apart: one-button, remote, and recoil options give owners alternatives when they need to start it from a distance or without relying on one method. Its stated 11,000W rated and 15,000W peak power put it in the high-output tier alongside the WEN TF-1450, though the GENMAX data does not break output down by fuel. A 10.56-gallon tank supports its large-capacity positioning, and the digital display makes operating information easier to check. CO detection is included as well. The tradeoff is less detail for comparing real-world runtime and fuel-specific capacity; weight and noise are also not provided, making transport and placement harder to judge. I’d favor the WEN if published fuel-by-fuel output figures are central to the decision.
Pros:- 15,000W peak and 11,000W rated power
- Gasoline, LPG, and natural gas compatibility
- One-button, remote, and recoil starting
- CO detection and digital display
Cons:- Product data does not specify output by fuel type
- Runtime, weight, and noise level are not provided
- Large tank and high-output design may be cumbersome to transport
Best for: Backup users who value remote starting and want a high-output tri-fuel unit with a digital display.
Not ideal for: Buyers who need published fuel-specific output, runtime, weight, or noise figures before choosing.
- Model:GM15000ET
- Peak power:15,000W
- Fuel types:Gasoline, LPG, natural gas
- Fuel tank:10.56 gallons
- Starting methods:One-button, remote, recoil
- Voltage:120V/240V
- Safety feature:Built-in CO detection
- Warranty:3 years
Our verdict“Choose the GM15000ET if remote starting and stated high output lead your checklist, and you can accept limited published operating details.”
DuroMax XP13000HXT 13,000-Watt Tri-Fuel Portable Generator
Remote and push-button starting make the XP13000HXT a practical pick for owners who want to start a substantial backup generator without relying on recoil. It provides 10,500 running watts and 13,000 peak watts, with a 50A transfer-switch-ready outlet for home connections. Compared with the Generac 12,500-Watt, the DuroMax lists more running power, while the Generac specifies AVR and COsense shutdown and gives clearer outlet details. The DuroMax instead lists CO Alert, seven outlets, and an 8.3-gallon tank with an eight-hour runtime figure. That runtime has no stated load level, so it is harder to compare directly with models that qualify their figures. Its 500cc engine and steel construction also point to a sizable unit. I’d skip it if clearly defined runtime conditions are a deciding factor.
Pros:- 10,500 running watts and 13,000 peak watts
- Runs on gasoline, propane, or natural gas
- Push-button and remote start
- CO Alert and 50A transfer-switch-ready outlet
Cons:- Listed eight-hour runtime does not specify the load
- Product data does not break output down by fuel
- 500cc steel-frame design may be difficult to reposition
Best for: Homeowners who want tri-fuel backup with remote starting and a 50A transfer-switch connection.
Not ideal for: Buyers who need runtime figures tied to a stated load or detailed fuel-by-fuel output data.
- Fuel types:Gasoline, propane, natural gas
- Running wattage:10,500 watts
- Peak wattage:13,000 watts
- Engine:500cc four-stroke OHV
- Starting system:Electric push-button and remote start
- Tank capacity:8.3 gallons
- Runtime:8 hours
- Outlets:7
- Safety feature:CO Alert
Our verdict“Pick the XP13000HXT for remote-start convenience and strong household backup output, provided its unspecified runtime conditions meet your planning needs.”
How We Picked
I organized these 15 generators around the choices that shape a real backup-power purchase: usable output, fuel flexibility, starting and control features, generator design, and likely fit for home backup or demanding portable use. Tri-fuel capability matters most when a buyer can actually connect to the fuel sources available at their location, so I treated it as a flexibility advantage rather than a substitute for checking the manual’s output ratings for each fuel.
The ranking favors models with a compelling balance for their likely buyer, then gives specialized options their own place. High advertised wattage helps only when it matches the loads a buyer intends to run; inverter design, remote start, and CO sensing can matter more for other households. Since the supplied product information does not establish comparable runtime, noise, weight, warranty, or fuel-specific output for every model, I avoid using those details to claim a precise performance winner.
| tri-fuel generator | Fuel types |
|---|---|
| Westinghouse WGen14500TFc Tri- | Gasoline, propane, natural gas |
| DuroStar DS13000MXT 13,000-Wat | Gasoline, propane, natural gas |
| Westinghouse WGen20000TFc Tri- | Gasoline, propane, natural gas |
| Westinghouse iGen12000TFc Tri- | Gasoline, propane, natural gas |
| WEN 14,500-Watt Tri-Fuel Gener | Gasoline, propane, natural gas |
| Westinghouse 13,500-Watt Tri-F | Gasoline, propane, natural gas |
| Westinghouse WGen9500TFc 12500 | Gasoline, propane, natural gas |
| DuroMax XP15000HXT 15,000-Watt | Gasoline, propane, natural gas |
| Westinghouse 14,500-Watt Tri-F | Gasoline, propane, natural gas |
| WEN 13,000-Watt Tri-Fuel Inver | Gasoline, propane, natural gas |
| Generac 12,500-Watt Tri-Fuel P | Gasoline, liquid propane, natural gas |
| Westinghouse iGen8200TFc Tri-F | Gasoline, propane, natural gas |
| WEN TF-1450 14,500-Watt Tri-Fu | Gasoline, propane, natural gas |
| GENMAX GM15000ET Tri-Fuel Port | Gasoline, LPG, natural gas |
| DuroMax XP13000HXT 13,000-Watt | Gasoline, propane, natural gas |
Factors to Consider When Choosing Best Tri-fuel Generators
Before choosing a model, I’d work backward from the loads you need to power and the fuel you can reliably supply. These decisions help narrow the field before differences in brand or advertised wattage sway you.Size the generator for the loads you will actually run
Write down the appliances or tools you need during an outage, then check their running and starting wattage on the nameplates or manuals. Motors in equipment such as refrigerators and pumps can demand a short surge when they start, so adding only their running watts can leave a generator undersized. Decide which loads must run together and which can take turns; managed use can reduce the capacity you need. Compare the generator’s ratings on your intended fuel, since advertised output may vary between gasoline, propane, and natural gas. A large peak-watt figure is not the same as sustained running capacity. This check can point you toward a high-output unit such as the WGen20000TFc or away from buying more generator than your household can use.
Check fuel access before treating tri-fuel as an advantage
Tri-fuel flexibility is useful when your backup plan can draw on more than one fuel source. Natural gas may be convenient where a suitable connection is available, while propane storage can provide an alternative when gasoline is scarce or difficult to store. Each fuel brings different logistics, and output may change by fuel, so review the manual and connection requirements before deciding. Confirm what hoses, regulators, or adapters are included and what you need to supply separately. Never operate a portable generator indoors or in an enclosed space, even when using natural gas or propane. Choose the model that fits your actual fuel setup rather than assuming three fuel labels mean identical performance.
Choose inverter or conventional output for your use
Inverter models such as the Westinghouse iGen12000TFc and iGen8200TFc stand apart from the conventional units in this roundup. Buyers often look at inverter designs when they want power suited to sensitive electronics or are weighing noise and efficiency characteristics, but they should confirm the specific product’s specifications rather than assume every inverter has the same advantages. Conventional models may be a better fit when the priority is high output for a home or worksite. Think about what will be powered at the same time: a few electronics and essentials create a different need from multiple large appliances or tools. Also check whether the model’s outlets match your planned connections. The right design is the one that meets those needs without paying for capacity or features you will not use.
Plan for safe placement and electrical connection
A portable generator needs a safe outdoor location with exhaust directed away from people, doors, and windows. A built-in CO sensor, featured on some models such as the WGen14500TFc and DuroMax XP15000HXT, adds a layer of protection but does not make indoor or enclosed operation safe. Before an outage, identify a level, dry operating area and a route for cords that will not create a trip hazard. If you want to power household circuits, consult a qualified electrician about a transfer switch or other approved connection. Do not connect a generator to a home outlet in a way that can send power back onto utility lines. A connection plan made in advance is safer and more reliable than improvising during a blackout.
Treat portability, storage, and maintenance as part of capacity
High-output portable generators can be difficult to move and store, even when wheels or handles are included. Check the listed weight and dimensions, then consider who will move it, where it will run, and how it will be protected from weather while idle. Storage space for fuel adds another constraint, especially if gasoline is part of your backup plan. Read the maintenance schedule for oil changes, exercise runs, and fuel-system care before purchase; stored equipment still needs attention to be ready when called on. Electric or remote start can make operation easier, but a starting battery also needs upkeep. A smaller model you can maintain and deploy may serve a household better than a larger unit that is hard to manage.
Frequently Asked Questions
Will a tri-fuel generator produce the same wattage on all three fuels?
Not necessarily. Manufacturers can list different running and starting output for gasoline, propane, and natural gas, so compare the figures for the fuel you expect to use most. Size your load plan against that fuel’s rating, not the largest number shown in a product title. If you switch fuels during an outage, check the manual for the approved changeover procedure. That detail can affect whether a model with a higher headline wattage actually meets your needs on natural gas or propane.
Should I choose an inverter model or a higher-output conventional generator?
Start with the devices you need to power and the conditions where you will use the generator. Inverter models in this roundup, including the iGen12000TFc and iGen8200TFc, may suit buyers prioritizing electronics and other inverter-related operating characteristics. A conventional model may make more sense when the priority is powering several large loads at once. Compare fuel-specific running watts, outlet types, noise data, and weight for the individual models before choosing. The category label alone does not tell you which generator will be quieter or sufficient for your load.
Can I connect a portable tri-fuel generator directly to my home wiring?
Do not plug a generator into a household outlet to feed the home’s wiring. That approach can create a dangerous backfeed hazard for utility workers and others. For selected household circuits, ask a qualified electrician about an approved transfer switch or interlock arrangement that complies with local requirements. Confirm that the generator’s output and connection options match the planned setup. Work out the connection before an outage, when there is time to do it safely.
Does a CO sensor make it safe to run a generator in a garage or near an open window?
No. A CO sensor is an added safety feature, not permission to run a generator indoors, in a garage, or close to openings where exhaust could enter the home. Follow the manufacturer’s placement instructions and applicable safety guidance for distance and exhaust direction. Keep the unit outdoors in a suitable open area, away from doors, windows, and vents. The sensor may alert or shut down the unit under certain conditions, but it cannot replace safe placement.
How much generator capacity should I leave unused for starting surges?
There is no single reserve percentage that fits every home because motor loads and startup behavior vary. Check the starting wattage for equipment such as well pumps, refrigerators, and air conditioners, then account for which items may start at the same time. Avoid adding every running watt while overlooking those startup peaks. If several large motors must operate together, ask an electrician or generator specialist to help size the system. You can also reduce the required capacity by scheduling some loads to run one at a time.
Conclusion
For the broadest mix of backup capacity and convenience, I’d start with the Westinghouse WGen14500TFc as my best overall choice, while recognizing that its size may not suit every storage or portability need. Buyers seeking maximum listed output should compare the WGen20000TFc with their actual load plan before choosing a premium-scale unit. For value, I’d shortlist the DuroStar DS13000MXT and DuroMax XP13000HXT, then compare their fuel-specific ratings, controls, and included connections against the budget and setup. Beginners may prefer a model whose electric start, controls, and documentation make operation straightforward; the WGen14500TFc is a sensible starting point to investigate. For buyers prioritizing inverter design, the iGen12000TFc offers more listed capacity than the iGen8200TFc, while the smaller model may fit lighter needs. Match the final choice to your loads, available fuel, safe placement, and ability to maintain and move the generator.
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