By Miles SinclairUpdated November 2026
Shoppers looking for a dual fuel propane diesel generator usually want one machine that keeps running when the grid fails, whether for home backup, a workshop or an RV. The main question is which unit balances power output, noise, outlet layout, fuel flexibility and portability for a given job. The picks below were chosen by comparing manufacturer specifications, brand reputation and the patterns owners commonly report, with attention to rated wattage, quiet operation, CO protection and transfer switch readiness. Nothing here reflects hands-on lab testing.
Our top picks at a glance
- 1
TOP CHOICEBest overallDuroMax XP13000EH 13,000-Watt Dual Fuel Portable GeneratorView on Amazon - 2
TOP CHOICEBest for whole-home backupDuroMax XP13000HX 13,000-Watt Dual Fuel Portable GeneratorView on Amazon - 3
TOP CHOICEBest for RV and campingWEN DF360iX Quiet Dual Fuel RV-Ready Portable Inverter GeneratorView on Amazon - 4
Best for quiet operationPowerSmart 3800 Watt Dual Fuel Inverter Generator for Camping or Home UseView on Amazon - 5
Best budget pickWestinghouse 4650 Peak Watt Dual Fuel Portable GeneratorView on Amazon - 6
Best for transfer switch setupsWestinghouse 6500 Watt Dual Fuel Home Backup Portable GeneratorView on Amazon
Our Top Picks
| Product | Best for | Key feature |
|---|---|---|
| DuroMax XP13000EH | Whole-home backup with high wattage | 13,000-watt rating, electric start, transfer switch ready |
| DuroMax XP13000HX | Heavy home loads and job sites | 13,000-watt rating, electric start, transfer switch ready |
| WEN DF360iX | RV use and quiet camping | Inverter design, fuel shut off, CO Watchdog |
| PowerSmart 3800 Watt Dual Fuel Inverter Generator | Noise-sensitive spaces | Under 59 dBA rating and clean power under 3% THD |
| Westinghouse 4650 Peak Watt Dual Fuel Portable Generator | Budget backup for essentials | RV-ready 30A outlet and CO sensor |
| Westinghouse 6500 Watt Dual Fuel Home Backup Portable Generator | Homes that need a transfer switch | Transfer switch ready 30A outlet and CO sensor |
DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator
DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator – Gas & Propane, Electric Start, Whole Home Backup Power, Transfer Switch Ready, RV & Emergency Ready
Best for: Whole-home backup with high wattage
This unit suits homeowners who want to run large appliances, well pumps or HVAC loads during an outage and who can accept a larger, heavier frame. It is also a practical choice for workshops with demanding tools.
Key specs
- 13,000-watt rated output as listed
- Electric start
- Gas and propane operation
- Transfer switch ready
Pros
- High rated output for large household loads
- Dual fuel flexibility when gasoline is scarce
- Electric start simplifies cold-weather operation
Cons
- Heavy and difficult to move without help or a cart
- Conventional generator design runs louder than inverter models
Bottom line: Best for households that need substantial wattage for whole-home or heavy-equipment backup and can plan for a permanent or semi-permanent placement.
DuroMax XP13000HX 13,000-Watt Dual Fuel Portable Generator
DuroMax XP13000HX 13,000-Watt Dual Fuel Portable Generator – Gas & Propane, Electric Start, Whole Home Power Backup, Transfer Switch Ready, RV & Emergency Ready
Best for: Heavy home loads and job sites
This model is aimed at buyers who want the same high-wattage class as the XP13000EH for home or site use, with a transfer switch ready design for connecting to household circuits.
Key specs
- 13,000-watt rated output as listed
- Electric start
- Gas and propane operation
- Transfer switch ready
Pros
- Large output suited to construction and whole-home use
- Fuel flexibility across gasoline and propane
- Designed with transfer switch connection in mind
Cons
- Bulky and heavy for one person to relocate
- Noise levels will be noticeable at close range
Bottom line: A strong fit for buyers who prioritize maximum rated wattage and plan to install a transfer switch, with the understanding that mobility is limited.
WEN DF360iX Quiet Dual Fuel RV-Ready Portable Inverter Generator
WEN Quiet and Lightweight 3600-Watt Dual Fuel RV-Ready Portable Inverter Generator with Fuel Shut Off and CO Watchdog (DF360iX)
Best for: RV use and quiet camping
Campers, RV owners and anyone running sensitive electronics will benefit from an inverter design, which typically produces cleaner power and quieter operation than a conventional open-frame generator of similar class.
Key specs
- 3,600-watt class as named in the listing
- Dual fuel operation
- Fuel shut off feature
- CO Watchdog protection
Pros
- Inverter design suits electronics and RV loads
- Lightweight and easier to carry than heavy-frame units
- CO Watchdog adds a safety layer
Cons
- Lower output limits the number of appliances that can run together
- Not sized for whole-home backup
Bottom line: A practical choice for RV owners and campers who want quieter, cleaner power for moderate loads.
PowerSmart 3800 Watt Dual Fuel Inverter Generator for Camping or Home Use
8H Run Time, Ultra-Quiet <59 dBA, CO Protect, Clean Power <3% THD, Parallel Ready PowerSmart 3800 Watt Dual Fuel Inverter Generator for Camping or Home Use
Best for: Noise-sensitive spaces
Buyers who live close to neighbors, camp in quiet areas or need a generator for a bedroom-adjacent setup will find the low listed noise rating especially relevant.
Key specs
- 3,800-watt class as named in the listing
- Listed noise rating under 59 dBA
- Clean power listed under 3% THD
- Parallel ready
Pros
- Low listed noise output for its power class
- Clean power suits sensitive electronics
- Parallel capability allows future expansion
Cons
- Output is modest for large household backup
- Decibel figures are manufacturer-stated and vary with load and placement
Bottom line: Best for noise-conscious users who need moderate, clean power and can work within a smaller wattage budget.
Westinghouse 4650 Peak Watt Dual Fuel Portable Generator
Westinghouse 4650 Peak Watt Dual Fuel Portable Generator, RV Ready 30A Outlet, Gas & Propane Powered, CO Sensor
Best for: Budget backup for essentials
This model fits households that want a dual fuel option for refrigerators, lights and a few key circuits without the cost and footprint of a large home standby unit.
Key specs
- 4,650 peak watts as named in the listing
- Dual fuel operation
- RV-ready 30A outlet
- CO sensor
Pros
- Good entry point for essential-load backup
- RV-ready outlet adds versatility
- CO sensor included
Cons
- Peak rating differs from continuous output, so plan loads conservatively
- Conventional design runs louder than inverter models
Bottom line: A sensible budget pick for essential backup, provided you size loads against running watts rather than peak watts.
Westinghouse 6500 Watt Dual Fuel Home Backup Portable Generator
Westinghouse 6500 Watt Dual Fuel Home Backup Portable Generator, Transfer Switch Ready 30A Outlet, RV Ready 30A Outlet, CO Sensor
Best for: Transfer switch setups
Homeowners who plan to connect a generator to household wiring through a transfer switch will find this model’s listed outlets and transfer switch readiness directly relevant.
Key specs
- 6,500-watt class as named in the listing
- Transfer switch ready 30A outlet
- RV-ready 30A outlet
- CO sensor
Pros
- Transfer switch readiness supports cleaner home integration
- Mid-to-high output suits common essential loads
- CO sensor included
Cons
- Installation of a transfer switch requires a licensed electrician in most areas
- Heavier than small inverter units
Bottom line: A good middle-ground choice for homeowners who want transfer switch capability without moving to the largest wattage class.
Buying Guide
Output Wattage and Running Watts
Add up the running watts of the appliances you need, then add a margin for startup surges from motors and compressors. Manufacturers often list both running and peak figures, and peak numbers are only available briefly. Plan around running watts.
Good picks for this: DuroMax XP13000EH, Westinghouse 6500 Watt Dual Fuel Home Backup Portable Generator
Engine Type: Conventional Versus Inverter
Inverter generators adjust engine speed to match load, which generally means quieter running and cleaner power for electronics. Conventional open-frame designs usually deliver more raw wattage per dollar of frame size but produce more noise.
Good picks for this: PowerSmart 3800 Watt Dual Fuel Inverter Generator, WEN DF360iX
Noise Level in Decibels
Decibel ratings are typically measured at a set distance under a specified load, so compare figures only between products tested to the same standard. A lower dBA figure matters most for campsites, residential neighborhoods and bedroom-adjacent placement.
Good picks for this: PowerSmart 3800 Watt Dual Fuel Inverter Generator, WEN DF360iX
Fuel Flexibility
Dual fuel units run on gasoline and propane. Propane stores well for long periods and burns cleaner, while gasoline is widely available. Confirm the tank capacity and expected run time on each fuel before relying on a unit for an extended outage.
Good picks for this: DuroMax XP13000HX, Westinghouse 4650 Peak Watt Dual Fuel Portable Generator
Outlets and Transfer Switch Readiness
Check for 120V and 240V outlets, an RV-ready 30A connection and a transfer switch ready design. Connecting a generator to home wiring should be done through a properly installed transfer switch by a licensed electrician to prevent backfeeding the utility grid.
Good picks for this: Westinghouse 6500 Watt Dual Fuel Home Backup Portable Generator, DuroMax XP13000EH
Portability and Weight
Large generators with wheel kits and handles are easier to move, but frames above a few hundred pounds are hard to reposition alone. If the unit will stay in one place, weight matters less than wattage and outlet layout.
Good picks for this: WEN DF360iX, PowerSmart 3800 Watt Dual Fuel Inverter Generator
Safety Features and Carbon Monoxide
Generators must never run indoors, in garages or within a few feet of openings. Look for built-in CO sensors or shutoff features as an added layer, not a substitute for correct placement and ventilation.
Good picks for this: Westinghouse 4650 Peak Watt Dual Fuel Portable Generator, WEN DF360iX
FAQ
What does dual fuel mean for a generator?
A dual fuel generator can run on gasoline or propane, often switching between the two with a selector. Propane is useful for long storage life, while gasoline is widely available during some emergencies.
Can I run a dual fuel generator on diesel?
Most models in this category are designed for gasoline and propane, not diesel. Always confirm the fuel types listed by the manufacturer before adding any fuel.
Is a transfer switch required for home backup?
A transfer switch is the standard way to safely connect a generator to household circuits and prevent backfeeding the utility grid. Have a licensed electrician install it according to local code.
How loud are dual fuel generators?
Noise varies by design and load. Inverter models are generally quieter than conventional frames, and manufacturer decibel figures are measured under specified conditions, so real-world sound will differ.
Where should I place a generator safely?
Operate it outdoors, at least 20 feet from the home and away from windows, doors and vents, with the exhaust directed away from occupied spaces. Never run it in a garage, even with the door open.
How long can a dual fuel generator run?
Run time depends on tank size, fuel type and load. Propane tanks and gasoline tanks produce different durations, so check the manufacturer’s run-time table at 50 percent and full load.
Conclusion
For whole-home or heavy-equipment backup, the DuroMax XP13000EH and XP13000HX offer the highest listed wattage in this group. The Westinghouse 6500 Watt model is a practical choice when transfer switch readiness is the priority. For RVs and camping, the WEN DF360iX and the PowerSmart 3800 Watt inverter model are better matched to quiet, clean power. The Westinghouse 4650 Peak Watt unit suits buyers who need essential backup on a tighter budget. Match your running-watt total, noise tolerance and outlet needs to the pick that fits.
Sources
- Guidance on generator sizing, fuel types and safe home backup practices (energy.gov)
- Carbon monoxide hazard warnings and safe generator operation recommendations (cpsc.gov)
- Standards and codes for emergency power systems and transfer switch installation (nfpa.org)
Related reading
- Champion Dual Fuel Generator Propane Hose: Setup, Fit and Safety Steps
- Champion Dual Fuel Generator Propane Hose Replacement: Step-by-Step Guide
- 7 Best Dual Fuel Diesel Generator Options Compared (2026)
- 4 Best Dual Fuel Generator Propane Models for Home Backup (2026)
About Miles Sinclair
Miles Sinclair is part of our editorial team and reviews and edits our generators & noise guides, checking product details against manufacturer specifications and owner feedback.
