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DuroStar DS4850EH Spec Review

The DuroStar DS4850EH is a compact open frame dual fuel portable generator with a rated wattage of 3850 W and a starting wattage of 4850 W.

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Description

As global energy consumption grows at exponential rates, so does the demand for energy solutions that are both more environmentally responsible and more efficient. The DuroStar DS4850EH has a dual fuel system that operates on either standard gasoline or cleaner burning liquid propane which can more than double you generator's run time. (source: DuroStar (opens in a new tab))

Zoom on the DuroStar DS4850EH

In summary, the DuroStar DS4850EH is a compact portable generator especially useful for:

  • RV travellers wishing to enhance their freedom and nomad lifestyle
  • People occasionally participating in outdoor fairs, festivals or events
  • Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
  • Professionals who want to be able to deliver results, even during a power failure

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

Power & Run Time

The DuroStar DS4850EH in use

The DuroStar DS4850EH

The dual-fuel technology of the DuroStar DS4850EH allows for an output of 120/240V and provides superb power and versatility. If gasoline-powered, the device provides a running wattage of 3850W and a starting wattage of 4850W. If propane-powered, it gives 3658 rated watts and 4608 starting watts.

Enjoying a noise rating of 69 dBA (less noisy than an office), this generator can be started thanks to a simple traditional pull-start mechanism, but also to a convenient and easy-to-use electric starter (battery included).

The running time of the DS4850EH, with its 4 gallons fuel capacity, can reach around 10 hours at 50% load on a full tank of gasoline (fuel consumption around 0.4 GPH). With propane, it can reach around 9 hours (on a 20 lbs tank - propane consumption around 0.52 GPH).

The DS4850EH is unsuitable for the powering of sensitive electronic devices due to its relatively high THD (<12%).

Outlets

The control panel features the following 3 AC outlets:

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

It also sports 1 DC outlet: there's a 12V 8A output allowing you to easily charge your batteries.

Since the DS4850EH bears a twist-lock L14-30R receptacle, it is transfer switch ready: it is easily connectible to a breaker box and can power your home in case of a power outage.

Portability

The design of the DuroStar DS4850EH is a typical, open frame, with the dimensions of L24 x W17 x H17 in, offering support and stability and enabling the possibility of raising it above ground level. The design is ideal for rough environments and demanding outdoor use.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 125 lbs. However, this lack of maneuverability is compensated by its wheel kit and its folding handle, with which you can conveniently shift it, once it's on the ground.

Features

Panel of the DuroStar DS4850EH

The DS4850EH's control panel

The DS4850EH's status and activity may be monitored conveniently via the control panel, as it features a handy voltmeter that allows you to easily monitor power output anytime.

In addition to this info, the device’s light indicator will display if its oil levels are insufficient.

The generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.

From a security point of view, the generator is equipped with an automatic low oil shut-off and an overload protection (circuit breaker), giving you a peace of mind during use.

While the standard documentation and an owner's manual (opens in a new tab), helpful for starting the device promptly, come with the DuroStar DS4850EH, the following accessories are also included: propane hose, tool kit, battery charging cables and funnel.

Emissions

The DuroStar DS4850EH is EPA-approved and CARB-compliant. Thus, selling and purchasing this generator is allowed in each of the 50 states, including California.

Moreover, it features a spark arrestor, so it is adequate for use in forested areas.

Product Video

The DuroStar DS4850EH versus other generators

The following charts are provided to give you an idea of how some of the key specs of the DuroStar DS4850EH compare to generators of similar power (between 3500 and 4500 W).

  • Having a dry weight of 125 lbs, the DuroStar DS4850EH belongs in the expected weight range for generators which produce 3500 to 4500 rated watts. If weight is your top priority, one of the champions in this power category is the WEN GN400i, weighing just 66.1 pounds.
  • As this generator has its lowest possible noise of 69 dBA, it should be considered noisier compared to its peers of a comparable running wattage. If you are concerned with noise, check out the Cummins Onan P4500i, which is one of the least noisy generators in its power range, with a noise rating of just 52 dBA.
  • As far as autonomy is concerned, providing around 10 hours of runtime with a full tank at a 50% load, the DS4850EH falls into the low end in comparison with other devices of a comparable power output. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the Honda EB4000X, boasting with around 16 hours.
  • While the run time is an important parameter, it is dependent on the fuel tank’s capacity and thus, doesn’t say much on its own unless we consider fuel consumption as well. This generator reaches an estimated fuel consumption of 0.4 GPH (gallon per hour) at a 50% load, making it average, for the previously mentioned wattage range. If you wish to acquire one of the most gasoline efficient products of this power range, the Westinghouse iGen4200, with a fuel consumption of 0.17 GPH could be in your good books.

Price comparison

As you can see from this interactive chart, when compared to other 3500-4500W generators, the DuroStar DS4850EH is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • Several accessories included
  • GFCI Outlets
  • Electric start
  • Dual Fuel
AVERAGE SPECS:
  • Decent weight (125 lbs)
  • Decent fuel efficiency
WEAKNESSES:
  • No remote start
  • On the noisy side (69 dBA)
  • Relatively low run time

Do you own the DuroStar DS4850EH and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
PortableYes
Parallel capableNo
RV readyNo
FuelDual Fuel (gasoline/propane)
Engine208 cc OHV 4-stroke
Starting systemRecoil, Electric
VoltageAC: 120/240V 60 Hz, DC: 12V
Power
 GasolinePropane
Running watts3850 W3658 W
Starting watts4850 W4608 W
Running amps (@120/240V)32.1/16 amps30.5/15.2 amps
Peaks amps (@120/240V)40.4/20.2 amps38.4/19.2 amps
Run time @50% load10 h9 h
Run time @25% loadN/AN/A
Features
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
Misc
Weight125 lbs
Approx. dimensions (L x W x H)24 x 17 x 17 in
Noise (lower limit)69 dBA
THD< 12%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralFloating
Accessories includedFunnel, tool kit, propane hose, battery charging cables and battery
Warranty3 years

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.

About DuroStar

The DuroStar brand belongs to DuroMax, a company founded in 2003 and based in Ontario, California. DuroStar generators usually have a DuroMax twin, and only differ in their color scheme and in the factory in which they were produced. While DuroStar generators and engines are manufactured in China, the design and servicing centers reside in the US.

Warranty Information

The DuroStar DS4850EH 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 DuroStar generators, please consult DuroStar's (DuroMax) 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 sizing calculator.
ItemRunning WattsStarting Watts
At homeDish washer15003000
AC (10,000 BTU)15002200
Set of 5 LED light bulbs5555
Total3055 W4555 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

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