DuroMax XP4850EH - 3850/4850W Dual Fuel Generator With Electric Start

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DuroMax XP4850EHDuroMax XP4850EHDuroMax XP4850EHDuroMax XP4850EH
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The XP4850EH Dual Fuel portable generator is designed as a powerful user-friendly unit that provides 4,850 watts of power using gas or liquid propane. Perfect for running household appliances and providing power to the jobsite. This Dual Fuel workhorse packs a punch and will keep you powered at home, at work, and at play.

Zoom on the DuroMax XP4850EH

In summary, the DuroMax XP4850EH is a portable generator especially useful for:

  • RV travellers wishing to enhance their freedom and nomad lifestyle
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Professionals who want to ensure that a power failure will not prevent them from working

The subsequent sections will explore in detail its power characteristics, the diverse outlets it provides, its overall portability, and the supplementary features it offers.

Power & Run Time

The DuroMax XP4850EH in use

The DuroMax XP4850EH

The dual-fuel technology of the DuroMax XP4850EH allows for an output of 120/240V and provides superb power and versatility. If gasoline-powered, the device provides a running wattage of 3,850W and a starting wattage of 4,850W. If propane-powered, it gives 3,658 rated watts and 4,608 starting watts.

At a noise rating of 69 dBA (less noisy than background music), this generator provides the choice between a simple traditional pull-start mechanism or an intuitive and practical electric starter (battery included) for starting.

In terms of its run time capability, the XP4850EH, furnished with a 4 gallons fuel tank, can maintain operations for up to 23 hours on a full tank of gasoline (with fuel consumption averaging 0.17 gallons per hour). It also provides up to 18 hours (on a 20 lbs tank - propane consumption around 0.26 GPH) of operation with propane.

The quite high THD (<12%) of the XP4850EH makes it unsuitable for powering sensitive electronic devices.


The control panel features the following 3 AC outlets:

Duplex 120V 20A (5-20R) GFCI
120/240V 30A (L14-30R) receptacle

Additionally, it offers 1 DC outlet: there's a 12V 8A output with which charging your batteries is made easy.

The XP4850EH's twist-lock L14-30R receptacle makes it transfer switch ready, enabling hassle-free connection to your breaker box for powering your home during outages.


At L25 x W24 x H21 in, the traditional open frame structure of the DuroMax XP4850EH ensures stability while facilitating convenient maintenance access to components and promoting air cooling. This type of design is ideal for tough environments and heavy outdoor use.

Even at 122 lbs, the generator is categorized as 'portable,' suggesting its movability, although its weight impede its portability. However, the lack of maneuverability can be offset with its wheel kit (⌀8") and its folding handle, which allows for convenient shifting once the generator is placed on the ground.


Panel of the DuroMax XP4850EH

The XP4850EH's control panel

The XP4850EH's control center features a handy voltmeter that allows you to easily monitor power output anytime to aid you with the monitoring of its status and activity.

In addition to this info, the generator's light indicator provides visual feedback when its oil levels are insufficient.

Featuring a built-in fuel gauge, the generator offers quick, convenient, and easy gas level checks at a glance.

Security-wise, this product benefits from an automatic low oil shut-off and an overload protection (circuit breaker), which gives you a complete peace of mind when using it.

Along the basic documentation and an owner's manual (opens in a new tab), useful for starting the generator right away, the DuroMax XP4850EH's package also includes these accessories: battery charging cables, tool kit, propane hose and funnel.

Product Videos

The DuroMax XP4850EH versus other generators

The following charts are provided to give you an idea of how some of the key specs of the DuroMax XP4850EH compare to dual fuel generators of similar power (between 3500 and 4500 W).

  • As its dry weight is 122 pounds, the DuroMax XP4850EH is one of the heavier of the dual fuel products which can generate 3500 to 4500 running watts. If weight is an important consideration for you, the WEN DF402iX stands out as one of the top contenders in this power category, with a dry weight of 66.1 pounds.
  • Among the generators of a comparable running wattage, this generator with a lowest noise of 69 dBA can be judged as noisy. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Westinghouse iGen4500DF, whose lowest noise levels reach just 52 dBA.
  • In terms of run time, the XP4850EH surpasses similarly powerful dual fuel devices, boasting one of the higher run times at up to 23 hours. If you consider autonomy on a single full tank as one of the deciding factors, one of the generators in the same power range that offers the highest run time is the Firman WH03662OF, with up to 25 hours.
  • While run time is vital, it hinges on the fuel capacity. To grasp the full picture, we must also factor in fuel efficiency. Among generators of similar power, this generator stands out with a better fuel efficiency than most, with consumption rates around 0.17 GPH (gallon per hour) at 25% load. If gasoline efficiency is at the top of your list, you may want to have a look at the Champion 200988, which has great fuel efficiency, with a gas consumption of only 0.16 gallons per hour.

Price comparison

As you can see from these interactive charts, when compared to other 3500-4500W dual fuel generators, the DuroMax XP4850EH is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget generator.

The bottom line

  • Inexpensive
  • Dual Fuel
  • Several accessories included
  • GFCI Outlets
  • Electric start
  • High run time
  • Fuel efficient
  • No remote start
  • On the heavy side (122 lbs)
  • On the noisy side (69 dBA)

Do you own the DuroMax XP4850EH and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

Parallel capableNo
RV readyNo
FuelDual Fuel (gasoline/propane)
Engine210 cc DuroMax OHV 4-stroke
Starting systemRecoil, Electric
Warranty3 years
VoltageAC: 120/240V 60 Hz, DC: 12V
Running watts3,850 W3,658 W
Starting watts4,850 W4,608 W
Running amps (@120/240V)32.1/16 amps30.5/15.2 amps
Peak amps (@120/240V)40.4/20.2 amps38.4/19.2 amps
Run time @50% load10 h9 h
Run time @25% load23 h18 h
GFCI outletsYes
Covered outletsNo
Automatic Voltage RegulationYes
AC outlets
  • 1x Duplex 120V 20A (5-20R) GFCI
  • 1x 120/240V 30A (L14-30R)
DC outlets1x 12V 8A output
Data centerVoltmeter
IndicatorsLow oil
Fuel tank4 gal
Fuel gaugeYes
Weight122 lbs
Approx. dimensions (L x W x H)25 x 24 x 21 in
Noise (lower limit)69 dBA
THD< 12%
ComplianceCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
Accessories includedFunnel, tool kit, propane hose, battery charging cables, battery, and wheel kit

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

Spec Improvement×

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About DuroMax

Duromax is a small, American based power equipment company, with headquarters in Ontario, California. Duromax specializes in several products, including pumps, engines, pressure washers, and most importantly, power generators. In this regard, the company focuses solely on portable generators, of mostly small and medium power outputs, and dual fuel devices. Duromax’s generators are designed and serviced in the US, however, their production is outsourced overseas. Founded in 2003, DuroMax starts to be seen as an important player in the power generator market.

Warranty Information

The DuroMax XP4850EH is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of DuroMax generators, please consult DuroMax's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-844-DUROMAX (844-387-6629).

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator sizer.
ItemRunning WattsStarting Watts
At homeElectric fry pan15001500
Microwave (1000 watts)15001500
Set of 5 LED light bulbs5555
Total3055 W3055 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Bug zapper8080
Total3070 W3660 W
For workTable saw18004500
Electric fence (25 miles)250250
Bug zapper8080
Total2130 W4830 W
What 2 items can i run at a time? (Asked March 08, 2021)

Any two items that you wish, as long as they do not contain sensitive electronic components and stay within the maximum running/starting watts. You can start by determining the running and starting watts of your appliances, or use our wattage calculator to get an estimation.

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DuroMax XP4850EH
5.9 Total Score
2 reviews
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User Reviews

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  1. 4.75

    I bought this generator in 2020. I have used it multiple times…always works great.
    I think everything is about maintenance
    I have 6 propane’s tanks (20LB) for power outages
    I put gasoline -NO ETHANOL..3 times per year, to keeps the rubber tubes free of leaks..
    I bought a magnetic oil dipstick, to clean debris when you change the oil.
    I change the oil after 20hours of use.ALWAYS
    I keep the battery charged with a trickle charger.
    I Keep in shed location in the back yard with beach umbrella.
    Great generator for a great owner.

    Lo compre en el 2020. Muchas veces usado, siempre trabaja bien.
    Pienso que todo es un buen mantenimiento.
    Tengo 6 tanques de 20 libras para apagones.
    Le pongo gasolina SIN Etanol, 3 veces anualmente, para evitar fugaz en las tuberias.
    Compre un tapon de aceite magnetico, para limpiar de residuos al momento de cambiar el aceite.
    Cambio el aceite cada 20 horas.
    Lo mantengo en un encienrro, en el patio junto a una sombrilla de playa.
    Buen Generador para un buen propietario.

    + PROS:
    • Price
    • Reliable
    - CONS:
    • Heavy
    Helpful(0) Unhelpful(0)You have already voted this
  2. Avatar
    Jeffrey D Dodd June 4, 2023 at 8:53 am

    It is junk. Arrived with bent frame but workable. It has no power, gets very hot, had to adjust valves as they were too tight and leaked, still can barely deliver 3000 watts on propane. It is worthless and never buy one. For warranty they send you a very damaged one that is no good either. They totally lie about what power they can make. In fact your ad here and theirs is higher for propane than the user manual you get with the unit. And fact is it can’t generate the lower number even. Warranty means nothing as they refuse to honor it and want it taken long distances for service, and send you more junk if they actually try to be fair. But who wants more and more junk. They lie about every specification. I will never buy from them again. Ever.

    + PROS:
    • NONE Except cheap price
    - CONS:
    • Can't generate power advertised. Predetinates on gasoline. Noisy and doesn't last long. JUNK. TOTAL JUNK
    Helpful(0) Unhelpful(0)You have already voted this

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