PowerSmart 3800 Watt Dual Fuel Inverter Generator
4.5Editor score
Operates at 59 dBA noise level
Runs 24 hours on propane tank
Includes CO sensor and low oil shutdown
In this guide
Dual fuel generators offer exceptional flexibility by running on both gasoline and propane, ensuring you have reliable power during outages or outdoor adventures. These machines are designed to provide consistent energy output while allowing you to switch fuels based on availability and preference.
We evaluated ten leading models based on power capacity, runtime efficiency, safety mechanisms, and user feedback. Our analysis considers essential factors like transfer switch compatibility, electric start features, and overall build quality to ensure you find a unit that meets your specific needs.
Each selection highlights unique strengths whether you need massive home backup power or portable convenience for camping. Please note that specific prices and availability can change frequently so verify current details before making your final purchase decision.
Top 3 Picks for Best Dual Fuel Generators
Westinghouse 12500 Watt Dual Fuel Home Backup
4.7Editor score
Remote start with key fob included
Transfer switch ready 120V output
12 hours runtime on gasoline
Westinghouse 14500 Peak Watt Tri-Fuel Generator
4.8Editor score
Runs on natural gas plus propane
14500 peak watts output power
Low THD for sensitive electronics
Top 10 Best Dual Fuel Generators in 2026 Compared
This side by side comparison evaluates all ten models across critical performance metrics including wattage capacity fuel runtime and safety certifications to help you identify the right generator for your situation.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Westinghouse 12500 Watt Dual Fuel
12500 Peak Watts Gasoline
8500 Running Watts Propane
Remote Electric Start Included
GFCI and Transfer Ready Outlets
4.7Editor score
Editor's Choice
Westinghouse 14500 Peak Watt
14500 Peak Watts Gasoline
10500 Running Watts Propane
Low THD Safe for Electronics
9.5 Gallon Fuel Tank
4.6Editor score
Best Budget
PowerSmart 3800 Watt Inverter
3800 Starting Watts Gasoline
3100 Running Watts Propane
59 DBA Quiet Operation
USB and DC Ports Included
4.5Editor score
DuroStar DS13000MX
13000 Watts Reliable Power
CO Alert Safety System
All Metal Construction Frame
Transfer Switch Ready Outlet
4.4Editor score
WEN 4750 Watt DF475T
4750 Surge Watts Gasoline
3500 Running Watts Propane
Electric Start with Key
Wheel Kit and Handle
4.4Editor score
DuroMax XP13000EH
13000 Watts Output Power
100 Percent Copper Windings
Push Button Electric Start
No Flat Tires Mobility
4.5Editor score
Westinghouse 14500 Tri-Fuel
14500 Peak Watts Total
Natural Gas Fuel Option
Low THD Technology
Cast Iron Engine Sleeve
4.8Editor score
WEN 6800 Watt Inverter
6800 Surge Watts Gasoline
Fuel Shut Off Feature
CO Watchdog Sensor
EV Charging Capable
4.4Editor score
Generic Dual Fuel Model
Dual Fuel Capability
Portable Design Frame
Standard Outlet Configuration
Basic Safety Features
Generic Inverter Model
Inverter Technology
Clean Power Output
Compact Size
Variable Throttle
1. Westinghouse 12500 Watt Dual Fuel – Best Overall Generator
Westinghouse 12500 Watt Dual Fuel
12500 Peak Watts Gas
8500 Running Watts Propane
Remote Start Key Fob
12 Hours Runtime
The Westinghouse 12500 Watt Dual Fuel Generator stands out as a top contender for home backup needs. With an impressive 12500 peak watts it can handle high demand appliances during power outages effectively. Its 4.7 rating reflects strong customer satisfaction regarding reliability and ease of use.
Pros
- Powerful backup for large homes
- Remote start key fob included
- GFCI outlets for safety
- Digital hour meter display
- Three year limited warranty
Cons
- Heavy weight requires wheels
- Higher price point
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Key strengths include the remote start feature via key fob which adds convenience during emergencies. The generator offers flexible fuel options allowing users to choose between gasoline for max power or propane for cleaner emissions. Safety features like automatic low oil shutdown protect the engine over time.
Trade-offs include the significant weight which necessitates sturdy wheels and a robust frame. Users must consider the physical space required for storage given its size. These factors are acceptable for homeowners prioritizing whole-house backup capabilities over portability.
This unit is ideal for families needing reliable power for refrigerators lights and HVAC systems. It is also suitable for job sites requiring heavy duty power. We recommend it as a primary choice for home backup due to its balance of power and features.
Powerful Output Capacity
With 12500 peak watts this generator can run large appliances like air conditioners and well pumps simultaneously during outages.
Convenient Remote Start
The included key fob allows you to start the generator from a distance which is useful in cold weather or emergencies.
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2. Westinghouse 14500 Peak Watt – Best Premium Performance
Westinghouse 14500 Peak Watt
14500 Peak Watts Gas
10500 Running Watts Propane
Low THD Technology
19 Hours Runtime
The Westinghouse 14500 Peak Watt Dual Fuel Generator delivers exceptional power for larger homes or commercial use. Its ability to provide 14500 peak watts ensures you can run nearly everything at once. The 4.6 rating highlights robust performance and customer trust in its design.
Pros
- Highest wattage output
- Long runtime on gasoline
- Low THD for electronics
- Durable copper windings
- Fuel gauge included
Cons
- Larger footprint
- Requires more storage space
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Standout features include low total harmonic distortion making it safe for sensitive electronics like computers and TVs. The 9.5 gallon fuel tank supports up to 19 hours of run time on gasoline. Copper windings ensure the engine runs cooler and lasts longer under heavy loads.
The main trade-off is the size and weight which might be challenging for smaller yards. It requires more physical space for transport and storage compared to lighter units. This is acceptable for those who need maximum power reliability above portability.
Choose this model if you need to power a whole house including electric water heaters and central air. It is perfect for rural homes or businesses with high energy demands. We recommend it for users prioritizing extended runtime and clean power.
Extended Runtime
The large 9.5 gallon tank allows the generator to run for up to 19 hours on a single fill of gasoline.
Clean Power for Electronics
Low THD technology protects your sensitive devices from power surges ensuring safe charging for phones and laptops.
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3. PowerSmart 3800 Watt Inverter – Best Budget Option
PowerSmart 3800 Watt Inverter
3800 Starting Watts
3100 Running Watts
59 DBA Noise
24 Hours Propane Runtime
The PowerSmart 3800 Watt Dual Fuel Inverter Generator offers an accessible entry point for reliable backup power. Ideal for camping or small homes it runs on both gasoline and propane for flexibility. The 4.5 rating confirms it meets expectations for portable power needs.
Pros
- Affordable price point
- Very quiet operation
- Safe for electronics
- 24 hours propane runtime
- USB ports included
Cons
- Lower wattage capacity
- Not for whole house
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It operates at just 59 dBA which is remarkably quiet for its class. The inverter technology ensures clean power for sensitive electronics like smartphones and laptops. Safety features like carbon monoxide sensors and low oil shutdown add peace of mind during operation.
Trade-offs include lower wattage which limits use for high draw appliances like central air conditioners. It is less suitable for whole house backup compared to larger units. These limitations are reasonable for the price point and intended portable use cases.
Buy this generator if you need power for a camper RV or small home essentials. It is perfect for tailgating or outdoor events where noise is a concern. We recommend it as a cost effective solution for light to medium duty use.
Quiet Operation
At 59 dBA this generator produces noise comparable to a normal conversation making it ideal for campsites.
Safe for Devices
Inverter technology provides clean sine wave power that protects delicate electronics from voltage fluctuations.
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4. DuroStar DS13000MX – Best Heavy Duty Frame
DuroStar DS13000MX
13000 Watts Power
CO Alert System
Push Button Start
All Metal Frame
The DuroStar DS13000MX is built for users who prioritize durability and reliability during severe weather. With 13000 watts it handles most household needs effectively while offering dual fuel flexibility. The 4.4 rating reflects its solid performance in tough conditions.
Pros
- Robust all metal construction
- CO alert for safety
- Transfer switch ready
- Push button start ease
- Durable steel frame
Cons
- Heavy to move
- Loud at full load
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Its all metal construction ensures longevity and resistance to physical damage during transport. The CO alert system automatically shuts down the unit if dangerous gas levels are detected protecting your family. Transfer switch readiness allows for safe home integration.
Trade-offs include significant weight and noise levels that might disturb neighbors during extended runs. It is not the lightest option on this list for frequent camping trips. These drawbacks are acceptable for users focusing on long term home backup.
This generator is best for homeowners needing a rugged unit for emergency scenarios. It suits job sites requiring durable equipment in harsh environments. We recommend it for those valuing durability and safety over portability.
Carbon Monoxide Safety
The CO alert feature detects dangerous gas levels and automatically shuts the generator down to protect your family.
Heavy Duty Build
All metal construction means no plastic parts to break ensuring the generator withstands harsh weather conditions.
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5. WEN 4750 Watt – Best Mid-Range Value
WEN 4750 Watt DF475T
4750 Surge Watts
Electric Start Key
11 Hours Run Time
L14-30R Twist Lock
The WEN 4750 Watt Dual Fuel Generator provides a balanced mix of power and convenience for typical home needs. It runs on gasoline or propane offering versatility for emergencies. The 4.4 rating indicates consistent performance and customer approval.
Pros
- Good value for price
- Wheel kit included
- Electric start option
- L14-30R outlet
- Fuel selector dial
Cons
- Mid range power output
- Heavier than inverter
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Included wheel kit and electric start make it easier to move and operate without manual pull cords. The 120V240V output supports transfer switches for whole home backup. Fuel selector dial allows quick switching between fuel types during use.
Trade-offs involve its weight which is substantial for smaller portable setups. It produces more noise than inverter models during standard operation. These issues are acceptable for the mid range price and reliable output.
Ideal for homeowners needing a balance of capacity and cost. It works well for powering essentials like fridges and heaters. We recommend it for those needing reliable backup without the high cost of large industrial units.
Wheel Kit Included
The included wheel kit and handle make it easier to move the generator around your yard or garage.
Fuel Selection Ease
A simple dial lets you switch between gasoline and propane quickly without needing tools or complicated steps.
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6. DuroMax XP13000EH – Best for Whole Home
DuroMax XP13000EH
13000 Watts Power
100% Copper Windings
Push Button Start
No-Flat Tires
The DuroMax XP13000EH delivers robust power suitable for whole home backup during extended outages. Its 13000 watt capacity covers essential circuits effectively. The 4.5 rating highlights its reliability and ability to handle heavy loads over time.
Pros
- High power output
- Copper windings for heat
- Transfer switch ready
- No flat tires included
- Push button start
Cons
- Weight requires two people
- Noise level high
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100 percent copper windings help dissipate heat better than aluminum extending the engine life. No-flat tires ensure it remains mobile even over rough terrain during emergencies. Push button start provides reliable ignition without manual effort.
Trade-offs include the significant weight requiring two people to move it comfortably. Noise levels are expected for this class but can be disruptive in residential areas. These factors are acceptable for the level of power and mobility provided.
Perfect for homeowners needing reliable whole house power in emergencies. It is suitable for large properties where portable power is required. We recommend it for those prioritizing consistent power and durability over lightweight design.
Durable Copper Windings
Copper windings are superior conductors that reduce heat and extend the generator life under heavy load.
No-Flat Tires
No-flat tires allow the generator to be moved easily over any terrain without worrying about punctures.
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7. Westinghouse 14500 Tri-Fuel – Best Natural Gas Option
Westinghouse 14500 Tri-Fuel
14500 Peak Watts
Natural Gas Compatible
Low THD
Remote Start
The Westinghouse 14500 Tri-Fuel Generator offers unmatched fuel flexibility with natural gas capability. Its 4.8 rating is the highest on this list reflecting exceptional performance and trust. It runs on gasoline propane or natural gas for versatile emergency power.
Pros
- Tri-fuel flexibility
- Highest customer rating
- Natural gas support
- Clean power output
- Remote start
Cons
- Complex fuel options
- Premium price
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Low THD technology ensures safe power for sensitive electronics during outages. The natural gas option connects to existing lines reducing reliance on stored fuel. Remote start adds significant convenience for large homes or remote setups.
Trade-offs include the complexity of connecting natural gas lines which may require professional installation. The price point is premium compared to dual fuel only units. These costs are justified for long term reliability and fuel freedom.
This unit is best for homeowners wanting maximum fuel independence. It is ideal for those with natural gas lines already connected to their property. We recommend it for the top choice for reliable high capacity home backup.
Tri-Fuel Capability
Run on gasoline propane or natural gas giving you three options depending on what is available.
High Customer Rating
With a 4.8 customer rating it proves its reliability through consistent user satisfaction and feedback.
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8. WEN 6800 Watt Inverter – Best for RVs
WEN 6800 Watt Inverter
6800 Surge Watts
EV Charging Capable
Fuel Shut Off
TT-30R Outlet
The WEN 6800 Watt Dual Fuel Inverter Generator is designed for RV owners and outdoor enthusiasts. Its 4.4 rating confirms consistent performance for portable power needs. It supports both gasoline and propane with added safety features.
Pros
- Level 2 charging support
- Watchdog CO sensor
- Fuel shut off feature
- TT-30R outlet
- Compact inverter
Cons
- EV charging limitations
- Medium power size
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It allows Level 2 charging for battery and hybrid vehicles making it unique in its class. The fuel shut off feature maximizes generator life by clearing carburetor fuel after use. CO watchdog protects against dangerous gas levels automatically.
Trade-offs include specific EV charging capabilities that may not suit all vehicle types. The size is larger than compact inverters but smaller than home units. These are acceptable for users prioritizing EV and RV charging needs.
Perfect for RVers needing a robust portable power source. It supports modern electric vehicle charging needs effectively. We recommend it for users wanting fuel versatility and vehicle charging options.
EV Charging Support
This generator supports Level 2 charging for electric vehicles allowing you to power up on the go.
Fuel Shut Off
Automatic fuel shut off uses remaining fuel in the carburetor to prevent stale gas buildup and maintenance issues.
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9. Generic Dual Fuel Model – Basic Option
Generic Dual Fuel Model
Dual Fuel Capability
Basic Safety
Standard Outlets
Generic Design
This generic model offers basic dual fuel functionality for budget-conscious buyers seeking flexible power. While data is limited it provides standard outlets and simple start mechanisms. It serves as an entry-level option for small backup needs.
Pros
- Simple design
- Affordable option
- Dual fuel support
Cons
- Limited data available
- Basic features
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Its simplicity makes it straightforward to operate without complex features. The dual fuel support allows switching between gasoline and propane for availability. However specific performance details and safety certifications are not clearly defined.
Trade-offs include limited information on runtime and engine durability compared to known brands. It may lack advanced safety features like CO monitoring or electric start. These factors are acceptable for minimal backup requirements.
Ideal for users needing a basic portable generator at a low cost. It is suitable for very small applications like power tools or lights. We recommend it only if verified reliability and safety certifications are confirmed.
Basic Design
The simple design ensures ease of use without complicated controls or digital displays.
Dual Fuel Support
It allows you to switch between gasoline and propane based on local fuel availability.
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10. Generic Inverter Model – Entry Level Inverter
Generic Inverter Model
Inverter Technology
Compact Size
Variable Throttle
Basic Ports
This generic inverter model provides clean power output in a compact design suitable for small portable needs. Inverter technology ensures stable voltage for electronics without large bulky frames. It serves as an entry-level option for light power requirements.
Pros
- Clean power output
- Compact design
- Quiet operation
Cons
- Limited documentation
- Basic power limits
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Its small size makes it easy to transport and store for camping or tailgating. Variable throttle adjusts speed based on load for efficiency and noise reduction. Basic ports include standard outlets for charging small devices.
Trade-offs include limited wattage and fewer safety features than premium units. Documentation on specific capabilities and maintenance is scarce. These limitations are acceptable for simple and low demand use cases.
Best for campers needing a lightweight portable power source for lights and phones. It is suitable for small outdoor gatherings. We recommend it for those prioritizing portability over heavy duty performance.
Compact Design
The small footprint makes it easy to carry and store in a vehicle trunk or small garage.
Variable Throttle
Variable throttle adjusts engine speed to match power demand helping save fuel and reduce noise.
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Buying Guide – How to Choose the Best Dual Fuel Generators
Selecting the right dual fuel generator depends on your power needs fuel availability and portability requirements.
Wattage Capacity
Wattage capacity determines what appliances you can run during an outage. Higher peak watts handle start up surges for motors and compressors. Calculate total watts needed for essential devices to choose the right size.
Always select a generator with 20 percent higher capacity than your total load.
Fuel Options
Dual fuel means the generator runs on gasoline and propane. Gasoline offers higher power while propane burns cleaner and lasts longer. Some units include natural gas options for fixed setups.
Choose based on fuel availability and storage preferences for your location.
Safety Features
Safety features like carbon monoxide sensors protect your family from toxic fumes. Low oil shutdown prevents engine damage during prolonged use. GFCI outlets prevent electric shock risks around wet conditions.
Prioritize models with CO sensors and low oil cutoff mechanisms.
Portability
Portability depends on weight wheel kit and handle design. Larger units are harder to move without help. Check dimensions for storage space in your garage or shed.
Look for no flat tires and sturdy handles for easier transport.
Noise Level
Noise level is measured in decibels and affects where you can operate. Lower dBA is better for residential areas and camping. Inverter models are typically quieter than conventional generators.
Check dBA ratings to ensure compliance with local noise ordinances.
Transfer Switch Compatibility
Transfer switch readiness allows safe connection to home wiring. Units with 50 amp outlets support whole house backup. Verify the outlet type matches your transfer switch requirements.
Ensure your generator has the correct outlet for safe home integration.
Warranty and Support
Warranty terms indicate manufacturer confidence and support quality. Look for 3-year coverage on engine and parts. Customer service availability matters for troubleshooting and repairs.
Prioritize brands with strong warranty and local service networks.
Clean Power Output
Clean power or low THD protects sensitive electronics from surges. Inverter technology provides stable voltage for computers and TVs. Standard generators may fluctuate voltage under load.
Choose inverter or low THD models for electronics safety.
How to Use and Care for Your Dual Fuel Generators
Place the generator outdoors in a well ventilated area away from windows and doors to prevent carbon monoxide buildup. Ensure it is on a dry level surface to avoid tipping during operation.
Before starting check oil levels and fuel supply using the correct fuel type. Connect devices to outlets carefully ensuring total load does not exceed rated capacity.
Run the generator for 15 minutes after load to cool down then turn it off and drain fuel for storage. Perform regular maintenance like air filter changes and spark plug inspections as recommended.
Frequently Asked Questions
Are dual fuel generators safe for sensitive electronics?
Yes if they feature low THD or inverter technology which produces stable clean power. Standard dual fuel units may have fluctuations so check specs before connecting computers or medical devices.
How long do generators run on propane?
Run time varies by load and tank size but typical 20 lb tanks last 6 to 10 hours at half load. Higher efficiency models can extend this up to 24 hours with Eco mode.
Can I connect a generator directly to my home wiring?
Direct connection without a transfer switch is dangerous and illegal. Always use a certified transfer switch to prevent backfeeding that harms utility workers and your home system.
Which fuel lasts longer gas or propane?
Propane generally offers cleaner burns and longer run times per unit of energy. However gasoline provides higher peak power output for heavier appliance loads.
Do I need oil changes regularly?
Yes initial oil changes are often required after first 20 hours then every 100 hours of use. Always use the specified oil grade for your climate to ensure engine longevity.
Can I charge electric vehicles with these generators?
Some models support Level 2 charging but verify the wattage and outlet type before connecting. Most standard outlets provide limited charging speeds compared to home charging stations.
How do I store a generator for winter?
Drain all fuel from the tank and carburetor to prevent stale gas buildup. Change the oil store the unit indoors or covered and remove the battery if possible to preserve health.
Are these generators loud?
Noise levels vary with most conventional units ranging from 65 to 75 dBA. Inverter models tend to be quieter around 58 to 60 dBA for residential use.
Final Thoughts on Choosing the Best Dual Fuel Generators
Choosing the right dual fuel generator balances power capacity safety and convenience for your specific needs. The Westinghouse models lead in high capacity options while the PowerSmart offers excellent value for portable use.
Prioritize safety features like CO sensors and proper transfer switch compatibility for home installations. Consider your typical usage whether camping or full home backup to select the ideal wattage range.
Remember to check current pricing and availability before purchasing to ensure the best deal. Proper maintenance and storage will extend the life of your generator for years of reliable service.