DuroStar DS4000S Portable Generator Review

Looking for affordable and reliable medium power generator?

The DuroStar DS4000S Portable Generator Review is worthy to read before you buy one.

The DuroStar DS4000S Portable Generator is capable to deliver 4,000 watts of maximum power or 3,300 watts of effective power. With this kind of power, it is ideal for home backup, camping and medium job site projects usage. Though, the DuroStar DS4000S Portable Generator comes in a very affordable price the power it delivers is incredibly reliable in any given situation.

“It’s been a full year since I’ve used this generator. After Hurricane Irene, I drained the fuel tank and changed the oil. This evening the power went out, so I filled the tank and the generator started on the second pull. I love this thing!”

>>Click Here to check the price and discover what people are saying about the DuroStar DS4000S Portable Generator Review.

Powerful And Reliable Engine

In times of calamity failure is definitely not an option, right?

The DuroStar DS4000S Portable Generator is powered by 7 Horse Power OHV 4-cycle engine with air cooled feature for great operations. The body is made of heavy duty steel frame with four point isolated motor mount to protect the engine and adds to its smooth running condition. Its 3,300 watts effective output is ideal for camping, RVing, covering sports events, job sites and home backup power.

“Just got the power back after 7 days; this time it was Sandy The DS4000 proved itself as the little generator that could, running 16 hrs/day for seven days without a problem. I really do love this generator!”

Excellent Panel Design

I guess no one wants to operate a complicated panel during emergency, right?

Thankfully, the DuroStar DS4000S Portable Generator comes in an excellent panel design for dead simple operation. This is probably one of the simplest panel designs I reviewed. Starting at the left side is the engine switch and below it is the Low Oil alert LED indicator. On the right side of it you can notice the Voltmeter and main circuit breaker. Finally, the two standard 120v 20Amp AC voltage outlets to accommodate your regular home appliances while the 120v twist-lock outlet for your RVs and high powered tools.

Fuel Efficient

Fuel efficiency is one key factor in choosing the best portable generator. The generator is said to be fuel efficient if it uses small amount of gas for a longer period of time. The DuroStar DS4000S Portable Generator is designed with excellent fuel efficiency.

How long it will lasts?

A single full tank of 4-gallon of fuel will last for more than 8-hours of run time. However, some customers confirms that it can last for up to 12 to 14 hours  powering up their mini split AC unit, refrigerator, TV and lights.

Low Noise

Hate the noise?

The DuroStar DS4000S Portable Generator is designed for low noise operation. However, you can never expect a 4,000 watts conventional generator as quiet as a 2,000 watts Honda inverters. DuroStar claims a 69dB noise level on this rugged workhorse generator. This makes it possible with its super quiet exhaust system that greatly reduces the engine noise.

More Features Ahead

The DuroStar DS4000S Portable Generator brings more features that make it easier for you to use while keeping your appliances safe and the generator as well.


The Voltmeter enables you to visualize the ideal voltage output. An over voltage and a lower voltage as well can damage your appliances. This feature is hardly found in any conventional generator.

Fuel Gauge

A solid steel fuel tank prevents leakage while the inclusion ez-read fuel gauge allows you to see the fuel level. It’s good to know if you need to add gas on the generator if it requires a longer hours of usage during power outbreak. This added feature is also hard to find.

Circuit Breaker

To protect your appliances from damaging due to overloading the circuit breaker feature will automatically shutdown the system. The circuit breaker will activate when an overload occurs. You can simply reset the main breaker switch to resume the generator’s operation.

Low Oil Shut-off

To protect the engine from damaging due to overheating, the low oil shut-off feature will take care of it. When the low oil alert LED indicator illuminate it means that there’s insufficient oil present in the generator’s engine. Change oil is needed to keep the engine in good shape.

Portable Design

Need to take it on camping?

The DuroStar DS4000S Portable Generator comes in a portable design so that you can easily take it anywhere that requires an immediate power. It features an easy to carry handle so that it can simply carry by two adult persons.

Don’t want to carry it?

If you refuse to carry a 90-pounds generator the DuroStar DS4000S Portable Generator features an optional wheel kit that includes the flip handle. Having this optional feature enables you to roll it anywhere while the handle greatly adds to its maneuverability. However, consumer should be aware the fact that the optional wheel kit and carry handle is not included in the package.

DuroStar DS4000S Portable Generator Review

The DuroStar DS4000S Portable Generator Review receives an excellent appraisal of 4.6/5 stars at Amazon.com that proves its great performance. The following reviews are written by customers who actually bought and use it in real world applications.

Power Handling

This generator provided power sufficient to run the refrigerator, a mini-split a/c unit, TV, and a couple of fluorescent lights for two days. Under this load, a full tank (4 gallons) lasted around 12-14 hours.

This generator came in handy when I needed it the most and has performed like a champ. I had a refrigerator, electric start stove, charged 3 smart phones, a battery charger charging 8 AA batteries, 4 lamps using energy efficient bulbs, 2 laptops, an LCD TV screen, Blu-ray player and brewed a cup of coffee running all at the same time and this generator didn’t struggle at all. It can handle more than what I used it for.


Hurricane Sandy hit us hard and we were estimated to be without power for 5 days. I prepared the generator the day before it hit, It started right up! It has been 4 days without power now and this generator has powered the following (2) 1/2HP sump pumps – (1) refridgerator/freezer and (1) microwave – (1) refridgerator/freezer and (1) HVAC system for heat – (1) refridgerator/freezer and (1) Verizon FiOS system – Miscellaneous items [cell phone chargers, hair irons, radio, etc.)

Fuel Efficiency

How long 4 gallons of gas gets me. The unit says 4 gallons = 8 hours on full load. I am getting 4 gallons = 16 hours so I am only putting the unit through half load.

My generator ran for 14+ hours before I needed to refuel. Obviously, the less power consuming equipment you use the longer it will run.


The packaging was great. There was no damage to the unit during shipping.


I bought this generator in preparation for hurricane Irene. The generator was easy to set up and started in one pull.

Noise Level

The unit is QUIET! Very quiet. I would even go as far as to say that my lawn mower is louder than this generator. I was able to put my head right next to the generator without issue, and I could not hear it running from inside of my house. Very impressed with the volume!

Lastly, compared to all of my neighbor’s generators, this one is the quietest by far!

Wheel Kit

I would say though that having this generator on wheels is very helpful. I would recommend the wheel kit to anyone interested in this generator.

I then installed the wheel kit (DuroStar DS4000S-WK Wheel Kit for DS4000S) which I also purchased from Amazon. It helped me move my generator from my backyard to my garage when I was done using it at night. The generator is pretty heavy so moving it around without the wheel kit will be a challenge.

Bottom line

If you treat this generator right and maintain it, it should return the favor and save your butt in times of need. We have a 1 yr old daughter and without this generator it would have been a difficult few days. I highly recommend this generator to run your basic needs.

Easy to Operate
Relatively Quiet (compared to a 22″ lawn mower)
Easy to read fuel gauge

Recommended oil change interval of 20 hours (change the oil every other time you fill the gas tank?)
Oil drain obscured by frame below (as oil drains it runs along the frame and makes a mess)
No watt or amp meter (Has volt meter, but why?)
Earth grounding post and hardware (nuts and washers) are too small
Packaging is inadequate for UPS Ground Shipping (operating panel was dented on arrival) >>Click Here to read more customers’ review.


The DuroStar DS4000S Portable Generator proves to be an outstanding performer. Most customers are amazed how quiet the generator runs and operates more than 14-hours in a single full tank. It is pack with helpful features such as the voltmeter, easy to read fuel gauge and simple panel design. The optional wheel kit is extremely helpful. Though, it is sold separately you can get it a very affordable price.

If you’re thinking to buy an affordable and reliable generator, the DuroStar DS4000S Portable Generator definitely brings real value. >>Click Here to get it at its Lowest Price!

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