Dual-fuel generators have become one of the most popular choices for homeowners because they can run on both gasoline and propane. During a power outage, fuel flexibility can be just as important as power output.
Unlike traditional gas-only generators, dual-fuel models give you the ability to switch fuel sources when one becomes difficult to find. They also allow you to store propane long-term without worrying about fuel degradation.
In this guide, we’ll cover:
- The best dual fuel generators in 2026
- How dual-fuel generators work
- Generator sizing recommendations
- Dual fuel vs gas generators
- Portable and inverter options
- How to choose the right model
By the end, you’ll know exactly which dual-fuel generator best fits your backup power needs.
Quick Picks: Best Dual Fuel Generators
Best Overall
DuroMax XP13000EH
Best For:
- Home backup power
- Large homes
- Well pumps
- Central air conditioning
Why We Like It:
- Massive power output
- Excellent reliability
- Gasoline and propane operation
- Proven emergency performance
Best Value
Westinghouse WGen9500DF
Best For:
- Average homes
- Power outages
- Multi-day emergencies
Why We Like It:
- Excellent customer reviews
- Strong power output
- Remote electric start
- Great balance of price and performance
Best Budget Generator
Pulsar G12KBN
Best For:
- Budget-conscious buyers
- Whole-home essentials
- Emergency preparedness
Why We Like It:
- Competitive pricing
- High wattage output
- Electric start
Best Inverter Generator
Champion 5500 Dual Fuel Inverter Generator
Best For:
- Electronics
- RVs
- Home offices
- Quiet operation
Why We Like It:
- Clean inverter power
- Quiet operation
- Fuel efficient
- Excellent portability
What Is a Dual Fuel Generator?
A dual-fuel generator can operate on:
- Gasoline
- Propane
Most models allow you to switch between fuel sources with a selector switch.
Benefits include:
- Greater fuel flexibility
- Longer fuel storage life
- Improved emergency preparedness
- Reduced dependence on a single fuel source
Why Homeowners Prefer Dual Fuel Generators
Power outages often create fuel shortages.
Having propane available can make a huge difference during:
- Hurricanes
- Ice storms
- Tornadoes
- Severe thunderstorms
Propane also offers several advantages:
- Long shelf life
- Cleaner burning
- Easier storage
- Reduced maintenance issues
Best Dual Fuel Generators Reviewed
DuroMax XP13000EH
Overview
The DuroMax XP13000EH remains one of the most popular high-output dual-fuel generators available.
Specifications
- 13,000 peak watts
- Electric start
- Gasoline or propane
- Transfer switch ready
Pros
- High output
- Excellent surge capacity
- Great for home backup
Cons
- Heavy
- Louder than inverter generators
Best For
Homeowners needing serious backup power.
Westinghouse WGen9500DF
Overview
One of the best-selling home backup generators available today.
Specifications
- 12,500 peak watts
- Remote start
- Transfer switch ready
- Dual fuel capability
Pros
- Excellent value
- Easy operation
- Reliable performance
Cons
- Large footprint
Best For
Average homes needing dependable emergency power.
Pulsar G12KBN
Overview
A high-output generator that delivers impressive value.
Specifications
- 12,000 peak watts
- Electric start
- Dual fuel operation
Pros
- Affordable
- Strong power output
- Good emergency backup capability
Cons
- Smaller dealer network
Best For
Budget-conscious homeowners.
Champion 5500 Dual Fuel Inverter
Overview
A quieter alternative for homeowners who prioritize clean power.
Specifications
- Inverter technology
- Dual fuel operation
- Electric start
Pros
- Quiet operation
- Fuel efficient
- Safe for electronics
Cons
- Lower power output
Best For
Home offices, RVs, and sensitive electronics.
What Size Dual Fuel Generator Do You Need?
Essential Backup Power
Run:
- Refrigerator
- Freezer
- Lights
- Internet
Recommended:
- 3,500–6,000 watts
Average Homes
Run:
- Essentials
- Furnace
- Sump pump
- Additional appliances
Recommended:
- 7,000–10,000 watts
Large Homes
Run:
- Multiple appliances
- Well pumps
- Some central air systems
Recommended:
- 10,000–13,000 watts
Dual Fuel vs Gas Generators
Dual Fuel Advantages
- Fuel flexibility
- Longer propane storage
- Cleaner operation
- Better emergency preparedness
Gas Generator Advantages
- Slightly lower cost
- Simpler fuel system
For most homeowners, dual-fuel generators are worth the extra investment.
Inverter vs Conventional Dual Fuel Generators
Inverter Generators
Advantages:
- Quiet operation
- Better fuel efficiency
- Clean power
Best For:
- Computers
- Medical equipment
- Home offices
Conventional Generators
Advantages:
- Higher output
- Lower cost per watt
Best For:
- Whole-home backup
- HVAC systems
- Well pumps
Features to Look For
Electric Start
Much easier during emergencies.
Remote Start
Convenient during severe weather.
Transfer Switch Compatibility
Provides safer home connections.
CO Shutdown Protection
An important safety feature.
Large Fuel Tank
Longer runtime between refueling.
Common Buying Mistakes
Buying Too Small
Always account for startup surge.
Ignoring Propane Output
Most generators produce slightly less power on propane.
Forgetting Fuel Storage
Plan fuel supplies before outages occur.
Skipping Maintenance
Regular testing ensures reliable operation.
Frequently Asked Questions
Are Dual Fuel Generators Worth It?
Absolutely.
Fuel flexibility is one of the biggest advantages during emergencies.
Do Dual Fuel Generators Last Longer?
Often yes.
Propane burns cleaner and may reduce engine deposits.
Can a Dual Fuel Generator Run a House?
Yes.
A properly sized model can power many or most household systems.
What Is the Best Dual Fuel Generator Overall?
For many homeowners, the DuroMax XP13000EH offers the best combination of power, flexibility, and value.
Final Verdict
If you’re looking for the best dual-fuel generator in 2026, the DuroMax XP13000EH stands out as the best overall choice thanks to its high output, proven reliability, and ability to handle serious home backup needs.
For homeowners seeking the best value, the Westinghouse WGen9500DF is hard to beat. If quiet operation and electronics protection are priorities, the Champion 5500 Dual Fuel Inverter Generator is an outstanding option.
No matter which model you choose, a dual-fuel generator provides flexibility, reliability, and peace of mind when the power goes out.
