Maximizing Power Efficiency: A Comprehensive Analysis of the Best Dual Fuel Generators on the Market
Overall Best
Champion 200988
4.7/5
- Peak: 4500W Gasoline, 4500W Propane
- Running: 3500W Gasoline, 3100W Propane
- Weight: 103 lbs
- Noise Level: 61 dB
High Power
DuroMax XP9000iH
4.7/5
- Peak: 9000W Gasoline, 8550W Propane
- Running: 7600W Gasoline 7200W Propane
- Weight: 237 lbs
- Noise Level: 68 dB
Value For Money
A-iPower SUA2000iD
4.5/5
- Peak: 2000W Gasoline, 1800W Propane
- Running: 1600W Gasoline, 1500W Propane
- Weight: 48 lbs
- Noise Level: 52 dB
After an intensive research process involving 137 different dual fuel units and extensive testing, we have compiled a list of the top-performing generators, classified into 3 different categories.
These generators provide a superior combination of flexibility and power efficiency, making them suitable for a broad range of applications.
Best Dual Fuel Generator for the Money
Consumarates Choice
Champion 200988
4.7/5
- Peak: 4500W Gasoline, 4500W Propane
- Running: 3500W Gasoline, 3100W Propane
- Weight: 103 lbs
- Noise Level: 61 dB
A-iPower SUA2000iD
4.5/5
- Peak: 2000W Gasoline, 1800W Propane
- Running: 1600W Gasoline, 1500W Propane
- Weight: 48 lbs
- Noise Level: 52 dB
Best Portable Dual Fuel Generator
Consumarates Choice
WESTINGHOUSE IGEN4500DF
4.6/5
- Peak: 4500W Gasoline, 4050W Propane
- Running: 3700W Gasoline 3300W Propane
- Weight: 104.7 lbs
- Noise Level: 52 dB
GENMAX GM3500IAED
4.3/5
- Peak: 3500W Gasoline, 3100W Propane
- Running: 3200W Gasoline, 2800W Propane
- Weight: 56.2 lbs
- Noise Level: 62 dB
Best Dual Fuel Inverter Generator
Consumarates Choice
DuroMax XP9000iH
4.7/5
- Peak: 9000W Gasoline, 8550W Propane
- Running: 7600W Gasoline 7200W Propane
- Weight: 237 lbs
- Noise Level: 68 dB
Read Review
Disclaimer: In some cases, we may receive an affiliate commission when you purchase through one of our links. This does not cost you anything extra, but it helps keep this site up and running.
Champion 200988
Pros
- Intelligauge meter
- RV Ready
- Inverter
- Fuel Efficient
- Long Warranty (3 years)
- Parallel Capability
- Accessories Included (Oil, funnel, tool kit, propane hose, dual port USB adapter, and battery)
Cons
- No GFCI outlets
- No remote start
Review
The Champion power equipment will be one of your top choices if you’re looking for a reliable portable generator. At “Consumarates” we select it as the best portable dual-fuel inverter generator.
The Champion 200988 model provides 3500W of running wattage when using gasoline and 3100Q while using propane. It features a peak power of 4500W gasoline and 4500W propane. With a 25% load run for 14 hours on gasoline and 21 hours on propane, respectively, with a 2.3-gallon capacity.
Its GPH is approximately 0.22. If you’re after a low GPH rating, the A-IPOWER SUA2000ID is a good option (GPH of 0.11)
With Champion’s EZ Start Dial, you can start the engine simply while having easy access to all the settings you require. This unit is featured with 4 outlets which include 3 AC & 1 DC. Besides, a dual port USB adapter is also included for charging daily use electronic devices like mobile, laptops, hair dryers & so on.
Another reason why the Champion generator is more popular in the market is because of its “Intelligauge meter.” It shows you voltage, frequency, oil level & other necessary data. Additionally, some light indicators are also added for low oil shutdown & overloading.
It is EPA-approved and CARB-compliant & its spark arrestor features make it a perfect choice for people of all levels.
Features
| Feature | Champion 200988 |
|---|---|
| Model | 200988 |
| Engine Brand | Champion Power Equipment |
| Engine Size | 212 cc |
| Engine Type | 4-stroke OHV |
| Portability | Yes |
| Dimensions (inches) | 23 x 17 x 20 |
| Environment Friendly | Yes |
| RV Ready | Yes |
| Parallel Capable | Yes (Cable isn’t included) |
| Sound Level | 61 db |
| Fuel Type | Dual Fuel |
| Fuel Tank Capacity | 23 |
| Run time | 7 hrs in gasoline, 10 hrs in propane at 50% load |
| Starting Watts | 4500 W (both gasoline & propane) |
| Running Watts | 3500 W Gasoline, 3150 W Propane |
| Voltage | 120 V |
| AC Outlets | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R) |
| DC Outlets | 1x 12V 8A (cigarette lighter style) |
| Idle Control | Yes |
| Cooling System | Yes |
| Starting Method | Recoil |
| Overload Protection (Circuit Breaker) | Yes |
| Weight | 102 lbs |
| Warranty | 3 years |
A-iPower SUA2000iD
Pros
- Budget Friendly
- RV Adapter Included ( L5-30R)
- Light Weight
- Accessories Included (Oil, funnel, tool kit, propane hose, RV adapter, and parallel cables)
Cons
- No digital display
Review
If you are looking for an affordable, portable dual-fuel inverter generator, then this A-IPower SUA2000ID is a perfect fit for you. This generator comes with a 3-year warranty and has a powerful 2000W of starting power in gasoline & 1800W in propane.
It comes with 3 power outputs: 2 AC outlets & 1 DC outlet with an output of 120V. It runs at 25% load for 10 hours in gasoline and 30 hours in propane with a noise level of 52 dB. It is the quietest generator on our list.
Although it’s not specifically designed for use with recreational vehicles, the L5-30P to TT-30R adaptor makes it simple to hook up to your RV. The good news is that these cables come standard.
This small dual fuel generator has an easily readable interface. It has built-in light indicators that tell you when the oil is low, or the generator is overloaded.
In addition, the overload protection and automatic low oil shutoff feature will ensure your safety at all times. The spark arrestor features make it a perfect choice for all campers.
WESTINGHOUSE IGEN4500DF
Pros
- RV Ready
- CARB Compliant
- Inverter
- Remote Start
- Low noise level (52 dB)
- Accessories included (Oil, funnel, tool kit, key fob, battery charger, propane hose, and battery)
Cons
- No GFCI outlets
Review
If you are looking for quietest dual-fuel generators of 4500W, this Westinghouse igen4500DF might be a perfect fit for all your needs.
It has a peak power of 4500 W in gasoline & 4050 W in propane. While it has a operating power of 3700W in gasoline & 3300W in propane. It is a perfect choice for food truck owners. Ona full tank of 3.4 gallons at 25% load, it runs 18 hours in gasoline & 22 hours in propane.
A total of 5 plugs can be used for power output, three of which are AC and two of which are DC. In addition, the AC TT-30R receptacle makes this unit ideal for use as a generator in a RV. This portable generator weighs a hefty 104.7 pounds, making it quite a chore to transport. However, its set of two wheels & telescopic handle makes up for its lack of mobility.
The unit’s digital display data center displays all relevant information, such as the current runtime, fuel level, lifetime run hours, and voltage. As an added bonus, it has built-in lights that flash as the low oil shutoff sensor or the machine overloads.
This Westinghouse version is distinct from others due to its spark arrestor. Moreover, it complies with the standards set forth by the Environmental Protection Agency and the California Air Resources Board.
GENMAX GM3500IAED
Pros
- Inverter
- Light Weight
- CO Detect Technology
- RV Adapter Included
- Accessories included (Funnel, tool kit, key fob, propane hose, RV adapter, and battery)
Cons
- Not CARB compliant
Review
This Genmax GM3500 model is another popular dual-fuel portable generator of 3500W. It is a bit more expensive than the GM3300, but it has some other features that might make it worth the price.
This Genmax will provide a starting wattage of 3500W and a running wattage of 3200W if your unit is powered by gasoline. When using propane as the fuel source, it has a maximum starting wattage of 3100W and an operating wattage of 2800W.
However, its noise output is just slightly over average (62 dB). Its remote starting capabilities are a definite plus compared to similar dual-fuel model.
When connected to another unit of the same power, its parallel capability function provides an additional boost. Contrarily, the parallel equipment kit is not supplied. It’s an optional supplementary purchase.
There are 5 total power output plugs, 3 AC and 2 DC. While it is not specifically designed for use with RVs, the L5-30R receptacle allows for easy hookup. In addition, it provides all the operational data you may need via a digital data center. Moreover, it has lights that flash when the oil is low, or the machine is overworked.
Campers, house owners & food truck owners, and other professionals would benefit greatly from its spark arrestor and CO detection technologies. Overall this dual fuel unit worth your investment.
DuroMax XP9000iH
Pros
- GFCI Outlets
- Parallel Capable (cable not included)
- Inverter
- High run time
- Remote Start
- Accessories included (Funnel, tool kit, key fob, battery charger, propane hose, and battery)
Cons
- Bulky (237 lbs)
- No 50 amp output
Review
The Duromax XP900Ih has an excellent reputation for its performance and quality. It is a 4-stroke combustion chamber dual fuel engine with a recoil, electric & remote start.
When powered with gasoline, it has a starting watt of 9000W & running watt of 7600W & when it is powered with propane, it has an 8500 starting watt & running watt of 7200W.
Anyone who needs to use a generator in a quiet space will appreciate how quiet this one is (just 68dB). On a 6.8-gallon gas tank, it can operate for 11 hours at 50% capacity, whereas propane only gets you 4.5 hours. In addition, it is expected to have a GPH of 0.35.
This Duromax dual fuel generator has five different power outlets on its control panel, including 2x Duplex 120V 20A (5-20R) GFCI, 1x 120/240V 30A (L14-30R) & 2x 5V DC USB port (USB-A and USB-C). The ATS plug and twist-lock L14-30R receptacle make this unit exceptionally transfer-switch-friendly. It implies that in the event of a blackout, you can quickly and simply link it to a breaker box.
If you are looking for a powerful inverter generator that is EPA-approved and CARB-compliant & can run on both propane and gasoline, the Duromax XP900Ih is a good choice.
Buying Factors
There are several factors to consider when buying a dual fuel generator:
- Power output: Determine the power output you need by adding up the wattage of all the appliances you plan to run simultaneously. A dual fuel generator with a higher power output will be able to run more appliances at the same time.
- Fuel efficiency: Consider the fuel efficiency of the generator, as this will affect how much it costs to run and how often you need to refill the fuel tank.
- Portability: If you need to take your generator on the go, choose a model with a handle and wheels for easy transport.
- Noise level: Some generators can be quite loud, so consider the noise level if you plan to use it in a residential area or campground.
- Price: Determine your budget and look for a generator that offers the features you need at a price you can afford.
- Warranty: Look for a generator with a good warranty, as this can provide peace of mind and protection in case of any issues.
- Pros & Cons: Before buying any unit, you have to weight the pros & cons & also research the brand and read reviews from other customers to get an idea of the quality and reliability of the generator.
- Ease of use: Consider how easy the generator is to use, including starting, refueling, and maintaining it.
- Size and weight: Consider the size and weight of the generator, as this will affect how easily you can transport it and where you can store it.
- Customer service: Look for a company with good customer service, as this can be helpful if you have any questions or issues with your generator.