Dual fuel portable generators let you run on gasoline or propane, but the right choice depends on how much power you need, how quietly you need it, and how you plan to connect it. I’d put the Westinghouse WGen9500DF first for its strong home-backup focus, while the WEN DF360iX suits buyers who want inverter power in a more portable format and the DuroStar DS13000MX targets heavier loads. The main tradeoff is straightforward: larger open-frame units offer more output, while compact inverter models are easier to move and better suited to noise-sensitive use. Fuel flexibility adds options, but neither fuel type removes the need to plan for runtime, safe placement, and transfer equipment. Read on for the full comparison and guidance on matching a generator to your actual loads.
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Key Takeaways
- The roundup splits into two clear groups: high-output open-frame models such as the DuroStar DS13000MX and Westinghouse WGen11500DFc suit large backup loads, while inverter models favor quieter, more portable use.
- Inverter design matters as much as wattage. The WEN DF360iX and other inverter picks fit buyers who value cleaner power and manageable size more than whole-home output.
- Westinghouse offers the broadest range here: its lineup spans large backup-focused units and smaller 3,600-watt-class options, so the brand name alone does not determine the right fit.
- Propane flexibility does not mean equal output on both fuels. Compare each model’s gasoline and propane ratings before planning around a large appliance or starting load.
- Controls and safety features separate similar-sized choices. Electric start and CO shutdown can make operation easier, but they do not replace correct outdoor placement or a safe home connection.
| Westinghouse WGen9500DF Dual-Fuel Portable Generator |  | Best Overall for High-Capacity Backup | Fuel type: Gasoline or propane | Gasoline running / peak wattage: 9,500 / 12,500 watts | Propane running / peak wattage: 8,500 / 11,200 watts | VIEW LATEST PRICE | See Our Full Breakdown |
| WEN DF360iX Dual-Fuel 3600-Watt Portable Inverter Generator |  | Best for Camping and Sensitive Electronics | Fuel type: Gasoline and propane | Engine displacement: 149cc | Weight: 49 pounds | VIEW LATEST PRICE | See Our Full Breakdown |
| DuroStar DS13000MX 13,000-Watt Dual-Fuel Portable Generator |  | Best for Transfer-Switch Backup | Fuel type: Gasoline and propane | Peak / running wattage: 13,000 / 10,500 watts | Engine: 500cc 4-stroke OHV | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen10500DFc Dual Fuel Portable Generator, 13,500 Peak Watts |  | Best for Extended Runtime | Fuel type: Gasoline and propane | Peak / running wattage: 13,500 / 10,500 watts | Engine: 500cc 4-stroke OHV | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen11500DFc Dual-Fuel Portable Generator with CO Sensor |  | Best for Maximum Output | Fuel type: Gasoline and propane | Peak / running wattage: 14,500 / 11,500 watts | Engine: 550cc 4-stroke OHV | VIEW LATEST PRICE | See Our Full Breakdown |
| ERAYAK 4500W Dual-Fuel Portable Inverter Generator |  | Best Overall Inverter Balance | Fuel type: Gasoline and propane | Gasoline output: 4,500W peak, 3,500W rated | Propane output: 4,050W peak, 3,150W rated | VIEW LATEST PRICE | See Our Full Breakdown |
| BILT HARD 4500W Dual-Fuel Portable Inverter Generator |  | Best for Quiet Electronics Backup | Fuel type: Gasoline or propane | Engine: 141cc, 4-stroke OHV, air-cooled | Gasoline output: 4,500W peak, 3,500W rated | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen5300DFcv Dual-Fuel Portable Generator with CO Sensor |  | Best for Home Backup Capacity | Fuel type: Gasoline or propane (LPG) | Running output: 5,300W gasoline; 4,800W propane | Peak output: 6,500W gasoline; 5,800W propane | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen3600DFcv Dual-Fuel Portable Generator |  | Best for Straightforward RV Backup | Fuel types: Gasoline and propane | Gasoline output: 4,650W peak, 3,600W running | Propane output: 4,180W peak, 3,240W running | VIEW LATEST PRICE | See Our Full Breakdown |
| PowerSmart 4400-Watt Dual-Fuel Portable Inverter Generator |  | Best for Extended Propane Operation | Fuel type: Gasoline and LPG | Gasoline output: 4,400W starting, 3,600W running | LPG output: 4,000W starting, 3,300W running | VIEW LATEST PRICE | See Our Full Breakdown |
| BILT HARD 5500W Dual-Fuel Inverter Generator |  | Best for Compact High Output | Fuel: Gasoline and LPG | Starting watts: 5,500 on gasoline; 5,000 on LPG | Running watts: 4,000 on gasoline; 3,600 on LPG | VIEW LATEST PRICE | See Our Full Breakdown |
| WEN 6800-Watt Dual-Fuel Portable Inverter Generator with Electric Start and CO Shutdown |  | Best for RV and 240V Versatility | Fuel: Gasoline and propane | Surge output: 6,800 watts on gasoline; 6,000 watts on propane | Engine: 224cc | VIEW LATEST PRICE | See Our Full Breakdown |
| WEN DF475T 4,750-Watt Dual-Fuel Portable Generator with Electric Start |  | Best for Long Gasoline Runtime | Fuel: Gasoline and propane | Surge output: 4,750 watts on gasoline; 4,350 watts on propane | Running output: 3,800 watts on gasoline; 3,500 watts on propane | VIEW LATEST PRICE | See Our Full Breakdown |
| PowerSmart 3800-Watt Dual-Fuel Inverter Generator |  | Best for Quieter, Lighter Camping Power | Fuel: Gasoline and propane | Starting watts: 3,800 on gasoline; 3,500 on propane | Running watts: 3,300 on gasoline; 3,100 on propane | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen3600DFc Dual Fuel Portable Generator |  | Best for Remote Start Convenience | Fuel: Gasoline and propane | Peak output: 4,650 watts on gasoline | Fuel tank: 4 gallons | VIEW LATEST PRICE | See Our Full Breakdown |
| dual fuel portable generator | Engine | Outlets | Warranty | Runtime |
|---|---|---|---|---|
| Westinghouse WGen9500DF Dual-F | 457cc 4-stroke OHV | 6 | 3-year limited warranty | Up to 12 hours |
| WEN DF360iX Dual-Fuel 3600-Wat | — | Two 120V NEMA 5-20R, one 120V TT-30R, one 12V DC, and two 5V USB | 3-year limited warranty | Up to 5 hours at half load on gasoline; up to 14 hours at half load with a 20-pound LPG tank |
| DuroStar DS13000MX 13,000-Watt | 500cc 4-stroke OHV | 5, including a 50-amp outlet | — | 17 hours |
| Westinghouse WGen10500DFc Dual | 500cc 4-stroke OHV | — | 3-year limited residential warranty | Up to 19 hours at 25% load |
| Westinghouse WGen11500DFc Dual | 550cc 4-stroke OHV | — | 3-year limited residential warranty | Up to 19 hours |
| ERAYAK 4500W Dual-Fuel Portabl | — | Two 120V/20A, one 30A L5-30P RV, USB-A, USB-C | 3-year limited | — |
| BILT HARD 4500W Dual-Fuel Port | 141cc, 4-stroke OHV, air-cooled | 120V 20A duplex, 120V 30A TT-30R, dual USB, 12V 8A DC | — | — |
| Westinghouse WGen5300DFcv Dual | 274cc, 4-stroke OHV | 5-20R 120V duplex, TT-30R RV-ready, L14-30R transfer-switch-ready | 3-year limited | — |
| Westinghouse WGen3600DFcv Dual | 212cc, 4-stroke OHV | 5-20R duplex, TT-30R, L5-30R | — | Up to 14 hours on gasoline; up to 16.5 hours on a 20 lb propane tank |
| PowerSmart 4400-Watt Dual-Fuel | 223cc, 4-stroke | 120V 30A L5-30R, 120V 20A 5-20R duplex, 12V 8A DC | — | Up to 8 hours on gasoline and 24 hours on a 20 lb propane tank, both at 25% load |
| BILT HARD 5500W Dual-Fuel Inve | 160cc, 4-stroke OHV | — | 90 days | — |
| WEN 6800-Watt Dual-Fuel Portab | 224cc | 120V/240V L14-30R, two 120V receptacles, TT-30R RV, 12V DC, two 5V USB | 3 years | Up to 6.1 hours at half load on gasoline; up to 9 hours on a 20-pound propane tank |
| WEN DF475T 4,750-Watt Dual-Fue | 224cc, 4-stroke OHV | Two 120V GFCI outlets, 120V/240V NEMA L14-30R, 12V DC | 2 years | — |
| PowerSmart 3800-Watt Dual-Fuel | 149cc, 4-stroke | — | 2-year limited warranty | Up to 8 hours on gasoline at 25% load; up to 24 hours on a 20-pound propane tank |
| Westinghouse WGen3600DFc Dual | 212cc, 4-stroke OHV | 5-20R 120V duplex, TT-30R 30A, L5-30R 30A | 3-year limited warranty | Up to 14 hours |
More Details on Our Top Picks
Westinghouse WGen9500DF Dual-Fuel Portable Generator
I rank the WGen9500DF first for buyers who want substantial home-backup output without stepping up to the larger WGen10500DFc or WGen11500DFc. It supplies 9,500 running watts on gasoline and 8,500 on propane, giving households flexibility when one fuel is harder to obtain. Its 6.6-gallon tank supports up to 12 hours of operation, while remote and electric start make it easier to get running during an outage. The display tracks voltage, frequency, and hours, useful for monitoring operation rather than guessing. The tradeoff is its heavy-duty size: it takes more space and effort to move than the 49-pound WEN DF360iX, and its gasoline runtime is shorter than the newer Westinghouse models’ stated 19-hour figures. Minimal assembly is also required.
Pros:- High gasoline and propane running output for substantial backup loads
- Remote, electric, and recoil starting options
- Up to 12 hours of runtime on its 6.6-gallon gasoline tank
- Transfer-switch-ready and RV-ready outlets, plus an operating display
Cons:- Heavy-duty size makes moving and storage more demanding
- Gasoline runtime is shorter than the 19-hour figures listed for the WGen10500DFc and WGen11500DFc
- Requires some assembly
Best for: Homeowners who need strong backup output for several household loads and want both gasoline and propane operation.
Not ideal for: Campers or buyers prioritizing easy transport, low noise, or a compact footprint; the WEN DF360iX is far lighter and designed for smaller loads.
- Fuel type:Gasoline or propane
- Gasoline running / peak wattage:9,500 / 12,500 watts
- Propane running / peak wattage:8,500 / 11,200 watts
- Engine:457cc 4-stroke OHV
- Gasoline tank capacity:6.6 gallons
- Runtime:Up to 12 hours
- Starting methods:Remote, electric, and recoil
- Outlets:6
- Warranty:3-year limited warranty
Our verdict“Choose the WGen9500DF for strong, flexible household backup if you can accommodate a large generator and do not need the longest listed runtime.”
WEN DF360iX Dual-Fuel 3600-Watt Portable Inverter Generator
The WEN DF360iX takes the compact, cleaner-power route rather than competing with the high-output Westinghouse WGen9500DF. Its 49-pound weight and inverter design suit camping, smaller backup loads, and electronics that benefit from low total harmonic distortion. The RV outlet, USB ports, eco mode, and carbon monoxide shutdown add practical flexibility for trips and portable use. Propane can run up to 14 hours at half load with a 20-pound tank, a useful alternative to the stated five-hour gasoline runtime at the same load. That limited gasoline runtime and lower rated output are the main compromises: it cannot serve the same range of household loads as the WGen9500DF, and buyers wanting more capacity can connect a separately sold parallel kit. At 65 dB at quarter load, it is quiet-oriented, not silent.
Pros:- 49-pound design is easier to transport than the large open-frame generators in this lineup
- Inverter output has under 1.2% THD at full load
- RV outlet, USB ports, and 12V DC outlet support varied portable-power needs
- CO shutdown protection, eco mode, and propane operation
Cons:- Gasoline runtime is up to 5 hours at half load
- Rated output is limited for larger household loads
- Parallel connection kit is sold separately
Best for: Campers, RV owners, and households needing portable power for smaller loads and sensitive electronics.
Not ideal for: Buyers seeking whole-home or high-demand appliance backup; its 2,900 gasoline-rated watts are well below the WGen9500DF’s output.
- Fuel type:Gasoline and propane
- Engine displacement:149cc
- Weight:49 pounds
- Noise level:65 dB at quarter load
- Runtime:Up to 5 hours at half load on gasoline; up to 14 hours at half load with a 20-pound LPG tank
- Outlets:Two 120V NEMA 5-20R, one 120V TT-30R, one 12V DC, and two 5V USB
- Warranty:3-year limited warranty
Our verdict“Pick the DF360iX for portable, electronics-friendly power and RV use, not for running a broad set of household appliances.”
DuroStar DS13000MX 13,000-Watt Dual-Fuel Portable Generator
The DuroStar DS13000MX suits buyers who put high output and a 50-amp transfer-switch connection ahead of easy portability. Its 10,500 running watts and 13,000 peak watts place it above the WGen9500DF in stated gasoline output, while its 8.3-gallon tank and listed 17-hour runtime offer a longer operating window than that Westinghouse model. Electric start and a CO sensor add convenience and a safety feature for backup use. Compared with the WGen10500DFc, though, the supplied information gives less detail about runtime conditions and outlet count, so I would not treat the 17-hour figure as directly equivalent to a specified load-based figure. The metal frame and large engine also point to a substantial machine; buyers who need a lighter camping generator should choose the WEN DF360iX instead.
Pros:- 10,500 running watts and 13,000 peak watts for demanding loads
- 50-amp outlet supports transfer-switch connection
- Gasoline and propane operation with electric start
- CO sensor and low-oil shutdown
Cons:- Large engine and metal frame may make transport difficult
- Fuel-powered operation requires a supply of gasoline or propane
- Runtime conditions are not specified, limiting direct comparison with load-qualified runtime claims
Best for: Homeowners or job-site users who need high-output dual-fuel backup and plan to connect through a 50-amp transfer-switch setup.
Not ideal for: Campers and anyone who must frequently lift or move a generator; its 500cc engine and metal-frame construction favor capacity over portability.
- Fuel type:Gasoline and propane
- Peak / running wattage:13,000 / 10,500 watts
- Engine:500cc 4-stroke OHV
- Fuel tank capacity:8.3 gallons
- Runtime:17 hours
- Voltage:240 volts
- Outlets:5, including a 50-amp outlet
- Safety features:CO sensor and low-oil shutdown
Our verdict“Choose the DS13000MX for high-output backup with a 50-amp connection, provided its size and fuel needs fit your setup.”
Westinghouse WGen10500DFc Dual Fuel Portable Generator, 13,500 Peak Watts
The WGen10500DFc is the runtime-focused choice among these large Westinghouse models: its 9.5-gallon tank is rated for up to 19 hours at 25% load. That stated load makes the figure more useful for comparison than the DS13000MX’s runtime listing, which does not identify a load. Its 10,500 running watts match the DuroStar’s stated running output, while the DuroStar lists higher peak wattage; the WGen10500DFc’s clear advantage is the longer, load-qualified runtime and remote plus push-button starting. It also adds a CO sensor and low-oil shutdown. Compared with the WGen11500DFc, it gives up 1,000 running watts while retaining the same stated tank size and runtime, making it a better fit when endurance matters more than maximum output. A transfer switch is sold separately, and the listed data do not provide its weight.
Pros:- Up to 19 hours of runtime at a specified 25% load
- 10,500 running watts for substantial backup needs
- Remote, push-button electric, and recoil starting
- CO sensor and low-oil shutdown
Cons:- Transfer switch or automatic transfer switch is sold separately
- Provides less running output than the WGen11500DFc
- Product data do not specify weight
Best for: Homeowners who want extended operation at a light load and need strong backup output with remote and push-button starting.
Not ideal for: Buyers who need the highest output in this group or want a generator with a stated weight for planning transport and storage.
- Fuel type:Gasoline and propane
- Peak / running wattage:13,500 / 10,500 watts
- Engine:500cc 4-stroke OHV
- Gasoline tank capacity:9.5 gallons
- Runtime:Up to 19 hours at 25% load
- Starting methods:Push-button electric, remote, and recoil
- Voltage / frequency:240 volts / 60 hertz
- Safety features:Low-oil shutdown and carbon monoxide sensor
- Warranty:3-year limited residential warranty
Our verdict“Choose the WGen10500DFc if long operation at light load matters more than the extra output of the WGen11500DFc.”
Westinghouse WGen11500DFc Dual-Fuel Portable Generator with CO Sensor
When the deciding factor is running wattage, the WGen11500DFc leads this five-generator group with 11,500 watts on its listed output, ahead of the WGen10500DFc and DuroStar DS13000MX at 10,500 watts each. That extra capacity can support a broader set of household loads, while gasoline and propane give owners a choice of fuel. Remote and push-button starting, CO sensing, low-oil shutdown, and overload protection round out its backup-focused feature set. The 9.5-gallon tank is listed for up to 19 hours, though the product data do not state the load for that figure; the WGen10500DFc’s 19-hour claim is specifically at 25% load, so the figures are not directly comparable. This is a heavy-duty portable unit, and a transfer switch or ATS must be purchased separately.
Pros:- Highest stated running output among these five products
- Gasoline and propane fuel options
- Remote and push-button electric starting
- CO sensor, automatic low-oil shutdown, overload protection, and less than 5% THD
Cons:- Heavy-duty construction may make it difficult to move
- Transfer switch and ATS are sold separately
- The stated 19-hour runtime does not identify a load for direct comparison
Best for: Homeowners with high backup-power demands who want the greatest stated running output in this batch and can handle a large generator.
Not ideal for: Campers, small-space users, or buyers who prioritize light weight; the WEN DF360iX is far more portable for modest loads.
- Fuel type:Gasoline and propane
- Peak / running wattage:14,500 / 11,500 watts
- Engine:550cc 4-stroke OHV
- Tank capacity:9.5 gallons
- Runtime:Up to 19 hours
- Total harmonic distortion:Less than 5%
- Voltage / frequency:240 volts / 60 hertz
- Safety features:CO sensor, automatic low-oil shutdown, and overload protection
- Warranty:3-year limited residential warranty
Our verdict“Choose the WGen11500DFc when maximum stated output matters more than portability and you are prepared to arrange a separate transfer-switch setup.”
ERAYAK 4500W Dual-Fuel Portable Inverter Generator
I’d rank the ERAYAK as the most balanced pick here for buyers who want dual-fuel flexibility in a compact inverter. Its 3,500 rated gasoline watts and 3,150 propane watts suit essential circuits, camping, or RV use, while the 54-pound weight is easier to manage than the 68-pound PowerSmart 4400. The 30A RV outlet, USB-A and USB-C ports, and pure sine wave output make it adaptable for electronics and common travel gear. Automatic fuel switching and a CO sensor add practical safeguards. The tradeoff is that its 16-hour runtime applies only at 25% load on gasoline, and the 2.25-gallon tank calls for more frequent refills under heavier demand. I’d choose the Westinghouse WGen5300DFcv instead when 120/240V household backup output matters more than portability.
Pros:- Gasoline and propane operation with automatic fuel switching
- 54-pound weight is comparatively manageable for transport
- Pure sine wave output and USB-A and USB-C ports suit electronics
- CO sensor, parallel capability, and three-year limited warranty
Cons:- 16-hour gasoline runtime is specified only at 25% load
- Lower rated output than the Westinghouse WGen5300DFcv
- Gasoline needs to cool before refueling
Best for: RV owners and households seeking a relatively light inverter generator for electronics, essential appliances, and moderate backup loads.
Not ideal for: Buyers who need 120/240V output or sustained high-capacity home backup; this is a 120V, 3,500-watt rated unit.
- Fuel type:Gasoline and propane
- Gasoline output:4,500W peak, 3,500W rated
- Propane output:4,050W peak, 3,150W rated
- Voltage:120V
- Noise level:58 dBA at 23 feet and quarter load
- Weight:54 lbs
- Gas tank and runtime:2.25 gallons; up to 16 hours at 25% load on gasoline
- Outlets:Two 120V/20A, one 30A L5-30P RV, USB-A, USB-C
- Warranty:3-year limited
Our verdict“Choose the ERAYAK for a transport-friendly inverter with useful outlet variety, but pick the WGen5300DFcv for stronger home-backup capacity.”
BILT HARD 4500W Dual-Fuel Portable Inverter Generator
The BILT HARD makes sense for buyers who want inverter power and a clear electronics-friendly specification without stepping up to a much larger conventional generator. It delivers 3,500 rated watts on gasoline, has less than 3% THD, and lists a 58 dBA noise level at 23 feet; ECO mode can help keep operation quieter when loads are light. Compared with the ERAYAK 4500W, it offers similar gasoline output and noise figures, but its 57.7-pound weight is higher and its propane rating is lower at 3,200 running watts. The CO sensor shuts the engine down automatically in unsafe conditions. Its 13-hour runtime is not tied to a stated load in the provided specs, so I wouldn’t treat it as a guaranteed all-day figure. Parallel operation also requires a separately purchased kit.
Pros:- Less than 3% total harmonic distortion for sensitive electronics
- 58 dBA noise rating and ECO mode
- CO sensor with automatic engine shutdown
- Includes an LPG hose and has a 30A RV outlet
Cons:- Parallel kit is sold separately
- Propane output is lower than gasoline output and below the ERAYAK’s propane rating
- Listed 13-hour runtime has no load level specified
Best for: Campers and RV users who want a quiet-running inverter with low-distortion power for phones, laptops, and other sensitive electronics.
Not ideal for: Buyers who need the strongest propane output or want parallel capability without purchasing extra equipment.
- Fuel type:Gasoline or propane
- Engine:141cc, 4-stroke OHV, air-cooled
- Gasoline output:4,500W peak, 3,500W rated
- Propane output:4,150W peak, 3,200W rated
- Noise level:58 dBA at 23 feet
- Total harmonic distortion:Less than 3%
- Fuel tank and runtime:1.37 imperial gallons; listed runtime up to 13 hours
- Outlets:120V 20A duplex, 120V 30A TT-30R, dual USB, 12V 8A DC
- Weight:57.7 lbs
Our verdict“Pick the BILT HARD for quiet, low-distortion RV and electronics use, but choose the ERAYAK for lower weight and stronger propane output.”
Westinghouse WGen5300DFcv Dual-Fuel Portable Generator with CO Sensor
For buyers prioritizing household backup over easy lifting, the WGen5300DFcv is the strongest fit in this group. Its 5,300 running watts on gasoline and 4,800 on propane exceed the inverter options here, and the 120/240V selector plus transfer-switch-ready L14-30R outlet make it more suitable for connecting selected home circuits. The 4.7-gallon tank supports up to 14.5 hours of runtime, though the supplied data does not specify the load for that figure. Compared with the smaller WGen3600DFcv, this model offers a meaningful capacity increase, but that comes with a heavier, bulkier package that is less convenient for frequent solo transport. CO and low-oil shutdowns, a wheel kit, and included propane hose help with setup and operation; minimal assembly is still required.
Pros:- Highest rated output among these five products on both fuel types
- 120/240V selector and transfer-switch-ready 30A outlet
- CO and low-oil automatic shutdown
- Includes wheel kit, propane hose, oil, and tools
Cons:- Bulkier and more cumbersome to move than the inverter models
- Requires minimal assembly before use
- 14.5-hour runtime is listed without a stated load level
Best for: Homeowners who need dual-fuel backup for several essential appliances and have a transfer switch or plan to install one.
Not ideal for: Campers or buyers who regularly move a generator alone; its higher-capacity conventional format is less portable than the inverter options.
- Fuel type:Gasoline or propane (LPG)
- Running output:5,300W gasoline; 4,800W propane
- Peak output:6,500W gasoline; 5,800W propane
- Engine:274cc, 4-stroke OHV
- Voltage:120/240V selector
- Fuel tank and runtime:4.7 gallons; up to 14.5 hours
- Outlets:5-20R 120V duplex, TT-30R RV-ready, L14-30R transfer-switch-ready
- Safety features:CO sensor with automatic shutdown; low-oil shutdown
- Warranty:3-year limited
Our verdict“Choose the WGen5300DFcv for higher-capacity household backup and transfer-switch connections, not for lightweight travel or frequent lifting.”
Westinghouse WGen3600DFcv Dual-Fuel Portable Generator
The WGen3600DFcv is a practical middle ground for RV owners who need a 30A connection and conventional-generator capacity without the WGen5300DFcv’s higher output. It supplies 3,600 running watts on gasoline or 3,240 on propane, enough for a more modest set of travel or household essentials, while its four-gallon tank is rated for up to 14 hours on gasoline. Propane runtime is listed at up to 16.5 hours with a 20-pound tank, a useful option for buyers who value fuel storage flexibility. Unlike the ERAYAK and BILT HARD inverter models, this Westinghouse is not described as an inverter, so I’d favor those picks for sensitive electronics and quieter operation. It adds low-oil and CO shutdown, a digital readout, and overload protection, but requires minimal assembly.
Pros:- Gasoline and propane operation with useful output on either fuel
- 30A TT-30R RV outlet plus L5-30R outlet
- Propane runtime listed up to 16.5 hours with a 20 lb tank
- CO and low-oil shutdown, overload protection, and digital readout
Cons:- Less running output than the WGen5300DFcv
- Not specified as an inverter generator for sensitive electronics
- Requires minimal assembly, and gasoline runtime varies with load
Best for: RV owners and households seeking a conventional dual-fuel generator with a 30A RV outlet and moderate appliance capacity.
Not ideal for: Buyers who need inverter-style power for sensitive electronics, 120/240V output, or more capacity than 3,600 gasoline running watts.
- Fuel types:Gasoline and propane
- Gasoline output:4,650W peak, 3,600W running
- Propane output:4,180W peak, 3,240W running
- Engine:212cc, 4-stroke OHV
- Fuel tank:4 gallons
- Runtime:Up to 14 hours on gasoline; up to 16.5 hours on a 20 lb propane tank
- Voltage:120V
- Outlets:5-20R duplex, TT-30R, L5-30R
- Safety features:Low-oil shutdown, CO shutdown, overload protection, voltage regulation
Our verdict“Choose the WGen3600DFcv for moderate RV or home backup with a 30A outlet, but move up to the WGen5300DFcv for higher loads.”
PowerSmart 4400-Watt Dual-Fuel Portable Inverter Generator
The PowerSmart stands apart through its claimed 24-hour propane runtime at 25% load with a standard 20-pound tank. That makes it appealing for buyers who can supply propane and want fewer fuel stops during light-duty backup or campsite use. It also provides 3,600 running watts on gasoline, less than 3% THD, and a 30A twist-lock outlet. Compared with the ERAYAK 4500W, the PowerSmart offers a longer stated propane runtime but weighs 14 pounds more and has a shorter gasoline runtime of up to eight hours at 25% load. Its 68-pound weight limits easy carrying, while the 1.6-gallon gas tank favors shorter gasoline intervals. A CO sensor and included LP regulator hose add convenience, though the two-year warranty is shorter than the three-year coverage listed for the ERAYAK and Westinghouse models.
Pros:- Up to 24 hours on a standard 20 lb propane tank at 25% load
- Less than 3% THD inverter output for sensitive electronics
- 3,600W gasoline running output and 30A twist-lock outlet
- Includes a two-stage LP regulator hose and CO sensor
Cons:- 68-pound weight makes transport and lifting less convenient
- Small 1.6-gallon tank and up to eight-hour gasoline runtime at 25% load
- Two-year limited warranty is shorter than the three-year coverage on several alternatives
Best for: Propane-equipped campers or households seeking long light-load operation without frequent gasoline refills.
Not ideal for: Buyers who need a lightweight generator, long gasoline runtime, or a longer stated warranty.
- Fuel type:Gasoline and LPG
- Gasoline output:4,400W starting, 3,600W running
- LPG output:4,000W starting, 3,300W running
- Engine:223cc, 4-stroke
- Fuel tank:1.6 gallons
- Runtime:Up to 8 hours on gasoline and 24 hours on a 20 lb propane tank, both at 25% load
- Total harmonic distortion:Less than 3%
- Outlets:120V 30A L5-30R, 120V 20A 5-20R duplex, 12V 8A DC
- Weight:68 lbs
Our verdict“Pick the PowerSmart if extended light-load propane operation matters more than easy portability or gasoline endurance.”
BILT HARD 5500W Dual-Fuel Inverter Generator
The BILT HARD 5500W suits buyers who want inverter-style power and a strong starting-wattage ceiling without moving up to a large conventional generator. Its gasoline output reaches 4,000 running watts, while LPG provides 3,600; that gives it more capacity than the PowerSmart 3800-Watt, though the PowerSmart is lighter and has a stated quiet Eco Mode rating. BILT HARD adds a digital display, economy mode, parallel connectors, and CO auto-shutoff, covering useful monitoring and safety needs. The tradeoff is its 1.14-gallon tank, which means more frequent refueling than the larger-tank WEN DF475T, and its 61.7-pound weight limits easy solo carrying. Its listed 90-day warranty is also brief compared with several alternatives.
Pros:- Dual-fuel operation with 4,000 running watts on gasoline
- Digital display and economy mode provide useful operating information and fuel-conscious operation
- CO auto-shutoff plus overload and low-oil protection
- Parallel-ready design and 120V 30A TT-30R outlet
Cons:- Small 1.14-gallon gasoline tank can require frequent refueling
- At 61.7 pounds, it is heavier than the PowerSmart 3800-Watt
- 90-day warranty is shorter than the two- or three-year coverage listed for several alternatives
Best for: Campers or homeowners who need inverter power, a 30A RV outlet, and more running capacity than compact models provide.
Not ideal for: Buyers who need long gasoline intervals, a longer warranty, or a generator light enough to carry comfortably over distance.
- Fuel:Gasoline and LPG
- Starting watts:5,500 on gasoline; 5,000 on LPG
- Running watts:4,000 on gasoline; 3,600 on LPG
- Voltage:120V
- Engine:160cc, 4-stroke OHV
- Fuel tank:1.14 gallons
- Weight:61.7 pounds
- Outlets and outputs:120V 20A outlets, 120V 30A TT-30R, 12V DC 8A, USB-C/USB-A adapter
- Warranty:90 days
Our verdict“Choose the BILT HARD if you want a compact-format inverter with comparatively strong output and can accept a small tank and short warranty.”
WEN 6800-Watt Dual-Fuel Portable Inverter Generator with Electric Start and CO Shutdown
The WEN 6800-Watt is the most versatile pick here for buyers who need more than standard 120V camping power. Its 120V/240V L14-30R outlet supports compatible equipment, while the TT-30R serves RV setups; the 240V outlet is also listed for low-power EV charging. Compared with the WEN DF475T, it offers higher rated output and inverter-style clean power, plus electric start, wheels, and a telescoping handle. That broader capability comes with a larger, more involved machine than the BILT HARD 5500W, and its propane output falls to 4,500 rated watts. The parallel kit is sold separately, so buyers hoping to expand output later should account for that extra requirement. Its 2.9-gallon tank is also smaller than the DF475T’s 4-gallon tank.
Pros:- High output for an inverter generator, with 5,100 rated gasoline watts
- 120V/240V outlet, RV receptacle, and multiple other connections
- Electric and recoil starting with wheels and telescoping handle
- CO shutdown and low-oil and low-fuel shutdown features
Cons:- Rated output drops from 5,100 watts on gasoline to 4,500 on propane
- Parallel connection kit is sold separately
- Smaller gasoline tank than the WEN DF475T’s 4-gallon tank
Best for: RV owners and homeowners who need inverter power, a 240V connection, electric start, and useful transport features.
Not ideal for: Buyers who want a lightweight camping generator, need maximum propane output, or expect parallel operation without buying an additional kit.
- Fuel:Gasoline and propane
- Surge output:6,800 watts on gasoline; 6,000 watts on propane
- Engine:224cc
- Noise level:64 dB at quarter load
- Gasoline tank:2.9 gallons
- Runtime:Up to 6.1 hours at half load on gasoline; up to 9 hours on a 20-pound propane tank
- Outlets:120V/240V L14-30R, two 120V receptacles, TT-30R RV, 12V DC, two 5V USB
- Warranty:3 years
Our verdict“Pick the WEN 6800-Watt when 240V and RV connections matter alongside clean inverter power, and skip it if portability or propane capacity takes priority.”
WEN DF475T 4,750-Watt Dual-Fuel Portable Generator with Electric Start
The WEN DF475T favors straightforward backup capacity and fewer gasoline stops over inverter features. Its 4-gallon tank and up-to-11-hour half-load runtime make it a practical fit for extended outages, while selectable 120V/240V output broadens what it can serve. Compared with the WEN 6800-Watt inverter, it gives up higher output and inverter power quality, but offers a larger tank and includes an LPG hose, wheel kit, and electric start. Its 3,800 running watts on gasoline are below the bigger WEN’s 5,100, so buyers with heavier loads should size carefully. Propane also reduces output to 3,500 running watts. This is a more conventional workhorse choice than the compact inverter models, not the best match for quiet camping or sensitive electronics.
Pros:- Four-gallon tank supports up to 11 hours at half load on gasoline
- Selectable 120V/240V output serves a range of compatible loads
- Electric start and included wheel and handle kit ease operation and moving
- LPG hose and multiple outlet types are included
Cons:- Lower rated output than the WEN 6800-Watt, especially on propane
- Conventional generator design lacks the stated clean-power specifications of inverter alternatives
- Listed runtime is at half load, not a guarantee for heavier loads
Best for: Homeowners who want a practical outage generator with electric start, 120V/240V flexibility, and longer gasoline intervals.
Not ideal for: Campers seeking a quiet inverter, or buyers whose sensitive electronics call for the clean power specified for inverter models.
- Fuel:Gasoline and propane
- Surge output:4,750 watts on gasoline; 4,350 watts on propane
- Running output:3,800 watts on gasoline; 3,500 watts on propane
- Voltage:Selectable 120V/240V
- Engine:224cc, 4-stroke OHV
- Starting system:Electric start
- Fuel tank and runtime:4 gallons; up to 11 hours at half load
- Outlets:Two 120V GFCI outlets, 120V/240V NEMA L14-30R, 12V DC
- Warranty:2 years
Our verdict“Choose the DF475T for longer gasoline operation and 120V/240V flexibility, rather than inverter-style power or the higher capacity of the WEN 6800-Watt.”
PowerSmart 3800-Watt Dual-Fuel Inverter Generator
At 50.7 pounds, the PowerSmart 3800-Watt is the easiest fit in this group for buyers who value manageable transport and lower-load camping power. Its stated 59 dBA at 25% load in Eco Mode gives it a quieter-use advantage over the WEN 6800-Watt’s listed 64 dB at quarter load, although those figures are from product data and conditions may differ. The PowerSmart also offers a propane runtime claim of up to 24 hours on a 20-pound tank, making it attractive for extended light use. Capacity is the tradeoff: its 3,300 gasoline running watts are below the BILT HARD 5500W and both WEN options. The product data also conflict on gasoline runtime and wattage figures, so I would verify those details before relying on it for planned loads.
Pros:- Relatively light at 50.7 pounds compared with the other generators in this batch
- Listed at 59 dBA at 25% load in Eco Mode
- Propane runtime is stated as up to 24 hours on a 20-pound tank
- CO, overload, short-circuit, and low-oil protections are listed
Cons:- Lower running output than the BILT HARD 5500W and WEN models
- Product data give conflicting gasoline runtime figures
- Product data also contain conflicting wattage figures
Best for: Campers and tailgaters who prioritize lower weight, quieter stated operation, and extended propane use at light loads.
Not ideal for: Households needing dependable high-load backup capacity or buyers who need unambiguous runtime and output specifications before purchase.
- Fuel:Gasoline and propane
- Starting watts:3,800 on gasoline; 3,500 on propane
- Running watts:3,300 on gasoline; 3,100 on propane
- Noise level:59 dBA at 25% load in Eco Mode
- Fuel tank:1.3 gallons
- Runtime:Up to 8 hours on gasoline at 25% load; up to 24 hours on a 20-pound propane tank
- Engine:149cc, 4-stroke
- Weight:50.7 pounds
- Warranty:2-year limited warranty
Our verdict“The PowerSmart is a sensible light-duty camping choice if portability and quiet operation matter more than output certainty or heavy-load capacity.”
Westinghouse WGen3600DFc Dual Fuel Portable Generator
The Westinghouse WGen3600DFc stands out for starting convenience rather than inverter portability: it pairs push-button starting with a wireless remote, a useful advantage when the generator is positioned outside during an outage. Its 3,600 rated gasoline watts and 30A RV outlet suit basic home backup and recreational-vehicle loads. Compared with the WEN DF475T, it adds remote starting and CO shutdown, while the WEN specifies selectable 120V/240V output and longer half-load runtime. The Westinghouse’s 4-gallon tank and up-to-14-hour runtime support extended operation, though the product data do not state the load for that runtime figure. It is a conventional, 120V-only generator, and its weight plus wheel and battery assembly work make it less convenient than compact inverter options.
Pros:- Wireless remote and push-button starting reduce manual startup effort
- 4-gallon tank and stated runtime of up to 14 hours
- TT-30R RV outlet and L5-30R 30A outlet
- CO shutdown, low-oil shutdown, and overload protection
Cons:- 120V output only, unlike the WEN DF475T’s selectable 120V/240V output
- Wheel installation and battery hookup are required during assembly
- Relatively heavy for frequent solo transport, and runtime load conditions are not specified
Best for: RV owners or homeowners who want remote electric starting, a 30A outlet, and conventional backup power.
Not ideal for: Buyers needing 240V output, a lightweight inverter for frequent transport, or clearly load-qualified runtime figures.
- Fuel:Gasoline and propane
- Peak output:4,650 watts on gasoline
- Fuel tank:4 gallons
- Runtime:Up to 14 hours
- Engine:212cc, 4-stroke OHV
- Starting system:Electric push-button and wireless remote
- Outlets:5-20R 120V duplex, TT-30R 30A, L5-30R 30A
- Warranty:3-year limited warranty
Our verdict“Pick the WGen3600DFc if remote starting and RV-ready 120V power matter more than 240V output or easy carrying.”
How We Picked
I ranked these dual fuel portable generators by how well their output, design, and operating features match distinct buyer needs—not by wattage alone. I weighed rated and peak output, inverter design, fuel flexibility, starting method, portability, CO-sensing features, and the practical difference between backup-focused open-frame units and smaller, quieter inverter models. I also considered whether a model’s size and stated role make sense for its likely use, from household backup to recreation and portable power.
The ranking gives priority to usable fit and versatility. The Westinghouse WGen9500DF leads as a balanced backup-oriented pick; the DuroStar DS13000MX and larger Westinghouse models rank higher for buyers who need more output, while inverter options earn their place through portability and power quality rather than raw capacity. Smaller or more specialized choices rank lower for broad backup use, but can be a better match for limited loads, easier transport, or a tighter generator footprint. I avoid treating features as guarantees: buyers should verify fuel-specific output, noise data, runtime conditions, and connection requirements for the exact model.
| dual fuel portable generator | Fuel type |
|---|---|
| Westinghouse WGen9500DF Dual-F | Gasoline or propane |
| WEN DF360iX Dual-Fuel 3600-Wat | Gasoline and propane |
| DuroStar DS13000MX 13,000-Watt | Gasoline and propane |
| Westinghouse WGen10500DFc Dual | Gasoline and propane |
| Westinghouse WGen11500DFc Dual | Gasoline and propane |
| ERAYAK 4500W Dual-Fuel Portabl | Gasoline and propane |
| BILT HARD 4500W Dual-Fuel Port | Gasoline or propane |
| Westinghouse WGen5300DFcv Dual | Gasoline or propane (LPG) |
| Westinghouse WGen3600DFcv Dual | — |
| PowerSmart 4400-Watt Dual-Fuel | Gasoline and LPG |
| BILT HARD 5500W Dual-Fuel Inve | — |
| WEN 6800-Watt Dual-Fuel Portab | — |
| WEN DF475T 4,750-Watt Dual-Fue | — |
| PowerSmart 3800-Watt Dual-Fuel | — |
| Westinghouse WGen3600DFc Dual | — |
Factors to Consider When Choosing Dual Fuel Portable Generators
Before choosing a model, I’d start with the loads you need to run and the place you’ll operate it. Those decisions often narrow the field faster than brand or headline wattage, especially when comparing a large open-frame generator with a compact inverter unit.
Size the generator around running and starting loads
List the appliances you expect to power at the same time, then distinguish their running watts from the brief surge needed to start motors. Refrigerators, pumps, air conditioners, and tools can demand more at startup than their everyday draw suggests. Add the simultaneous running loads and check that the generator can handle the largest starting surge on top of them. A common mistake is choosing by peak watts alone, then discovering the sustained rating cannot support the intended combination. If you only need a few essentials, a smaller unit may be easier to transport and store than a high-output model. For larger loads, have an electrician confirm what can be powered safely through a transfer switch or approved interlock.
Compare gasoline and propane output separately
Dual fuel means a choice of fuel, not identical performance on both fuels. Manufacturers often list different output figures for gasoline and propane, so check the rating for the fuel you expect to use most. Gasoline can be convenient when the generator needs its full rated capacity, while propane can suit planned storage and occasional backup use. Propane availability depends on having the right cylinder or supply arrangement, and cylinder size affects how long the generator can run before a changeover. Avoid planning a home load from the gasoline rating if you intend to operate on propane. Compare runtime figures only when the stated load and fuel conditions are similar.
Choose inverter or conventional output for the setting
Inverter generators are often the better match for camping, recreation, and locations where lower noise and stable power for sensitive electronics matter. Conventional open-frame models tend to prioritize higher output and may be a more practical fit for demanding backup loads or work sites. Neither design is automatically right for every buyer: an inverter unit can be underpowered for a large home load, while a high-output open-frame machine can be bulky and intrusive near a campsite. Check the manufacturer’s noise measurement conditions rather than relying on a single decibel number without context. If you need more capacity but prefer inverter-style operation, compare the actual rated output and approved parallel capability before assuming two smaller units will meet your needs.
Plan transport, storage, and operating location
Weight, wheels, handles, and overall dimensions decide whether a generator is genuinely portable for your situation. A model that can be rolled across a driveway may still be difficult to lift into a vehicle or move over steps, so match the design to the route it will travel. Think about storage space and where it can run outdoors, away from doors, windows, and vents. Carbon monoxide safety depends on placement and airflow; a CO sensor or shutdown feature is an added safeguard, not permission to run the machine indoors, in a garage, or near an open window. Keep fuel and propane cylinders stored according to their instructions and local rules. For home backup, plan the generator’s position and cable path before an outage.
Match starting and connection features to your routine
Electric start can reduce the effort needed to start a larger engine, while a recoil starter may provide a simple backup if the battery is depleted. Check whether the starting battery needs periodic care and whether the controls are clear enough for the person who will operate the generator. For home circuits, a transfer switch or approved interlock is a separate part of the setup; a convenient outlet does not make direct connection to household wiring safe. Confirm outlet types, amperage, and included accessories against the equipment you plan to power. Buyers who only need occasional portable power may prefer simpler controls, while a backup setup benefits from a practiced startup routine and a clear connection plan.
Pay for capacity or convenience only when you need it
A larger generator can run more equipment, but it also takes up more space and may consume more fuel when operated at a light load. Paying for extra wattage makes sense when you have a defined need, such as several large appliances or demanding tools—not simply because the peak figure is higher. At the other end, a compact inverter can be a better buy for limited loads, easier handling, and noise-sensitive use, even if it cannot cover a whole house. Consider maintenance access, oil changes, fuel storage, and the availability of model-specific parts alongside the purchase decision. Leave room in the plan for cords, a safe connection method, and routine upkeep rather than spending the entire budget on generator output.
Frequently Asked Questions
Can a dual fuel portable generator run my whole house?
It depends on the home’s loads, the generator’s rated output on your chosen fuel, and how the circuits are managed. A large model may support selected essential circuits, but that does not mean it can run every appliance at once, particularly loads with high starting surges. Make a list of the circuits you want powered and ask an electrician to size a transfer switch or approved interlock for the generator. Check propane output separately if propane is your planned fuel. Never connect a portable generator directly to household wiring through a wall outlet.
Should I run a dual fuel generator on propane or gasoline during an outage?
Choose based on availability, expected load, and your storage plan rather than assuming one fuel is always better. Compare the generator’s published output and runtime for each fuel, since propane operation may provide less power than gasoline on the same model. Gasoline may suit buyers who need the generator’s higher output, while propane can be useful when you keep compatible cylinders ready and want a storable backup fuel. Neither option removes the need for safe handling and correct storage. Keep enough fuel for your expected outage and follow the manufacturer’s instructions for changing fuels.
Is an inverter generator necessary for a refrigerator, laptop, or phone?
An inverter model can be a strong choice when you want stable electrical output and a quieter, more portable design, but check the specific generator’s specifications rather than relying on the category label alone. Many conventional generators can power common household equipment too, yet their noise, size, and output characteristics may be less suited to recreation or sensitive electronics. A refrigerator also has a startup surge, so confirm that the generator can handle it. For laptops and phones, use suitable surge protection and follow the equipment makers’ guidance. Choose based on all the loads you plan to run, not one device in isolation.
How much generator capacity should I leave in reserve?
I would avoid planning to run a generator at its limit, especially when motors or compressors start. Add up the expected running loads, then account for the largest starting surge that could occur while other equipment is already operating. A modest reserve can reduce the chance of overload and give you flexibility if your needs change, but buying far more capacity than you use can add cost, size, and fuel demand. Check both rated and peak output, and use the rating for your selected fuel. If you are unsure about a home load calculation, ask an electrician to review it.
Can I use a CO-sensing generator in a garage or beside an open door?
No. A CO sensor or automatic shutdown is a secondary safety feature, not a substitute for outdoor operation in a well-ventilated location. Carbon monoxide can build up in garages and enter a home through doors, windows, and vents, even when a door is open. Follow the generator maker’s distance and placement instructions, and keep exhaust directed away from buildings and occupied areas. Install working CO alarms inside the home as an additional safeguard. If the operating location cannot meet safe clearance guidance, do not run the generator there.
Conclusion
For the broadest mix of home-backup output and practical versatility, I’d choose the Westinghouse WGen9500DF as best overall. Buyers who need substantially more capacity should compare the DuroStar DS13000MX or larger Westinghouse WGen models as premium, high-output options, after checking fuel-specific ratings and connection needs. For a value-focused choice, I’d start with the PowerSmart 3800-Watt Dual-Fuel Inverter Generator if its capacity covers the planned loads; buyers seeking a straightforward, compact inverter option can look to the WEN DF360iX as the beginner-friendly pick. For quieter, portable use, choose among the inverter models; for heavier backup or job-site demands, prioritize the larger open-frame units. Match the generator to a written load list, a safe outdoor location, and a proper connection plan before deciding.
Fall Picks
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