The Most Comprehensive DuroStar DS4000S Review: Worth It?

By Jack | Resources

Jul 15

DuroStar DS4000S Review

The DuroStar DS4000s is known for its reliability and versatility as a generator that is perfect for RV's, camping, job sites, and as a temporary power for the home. In today’s article, we are going to take a look at what makes the Duostar DS4000S one of the best portable generators to have on hand. In addition to that, we will also talk about generators in general and why they should be considered as an investment, especially if you are a homeowner. If you are in the market for a power generator, then this handy guide will help you in finding the right generator for your home. With that being said, let’s get into our review of the DuroStar DS4000s.

Having a reliable generator can be a valuable asset when you are at a job site or enduring a lengthy power outage. The DuroStar is one of a number of different generators available, and it offers an impressive set of useful features and specifications. We will get into the details of what makes this such a great generator, but first, let's go over some of the ins and outs of  what makes having a generator on hand such a valuable possession. We will also take some time to talk about the different types of generators you can purchase as well.

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Why have a generator? 

One of the main reasons having a generator on hand is great is for the sole purpose of staying on the electrical grid even when the power goes out. If power goes out in your home, having your own personal backup generator can be the perfect way to ensure that your home continues to run smoothly. For some homes, the loss of power can be devastating thing especially if you have people living in your home who are dependent on that power for medical reasons. For business owners, the loss of power can be crippling. Not being able to operate and function your business translates into a loss of revenue. And even a couple of minutes of loss of power can cost your business hundreds if not thousands in normal operating profits. 

Having a generator on hand is not just beneficial for a power outage. If you often go out camping or depend on a source of power if you operate an RV, then having a power generator on hand can be helpful too. 

Overall, you want to make sure that you are prepared for anything. Power outages are not just limited to bad weather either. Friendly critters who chew on the wrong electrical wires, utility failures, and even human accidents can result in loss of power. With a backup generator ready to kick in, you will have one less thing to worry about as you figure out a solution to getting your power back on for good. 

How to Choose a Power Generator

Before searching for a generator, you'll want to consider your power needs and how much wattage you will require to run the tools or appliances in question. Not all generators are made alike. If you are not diligent in your research beforehand, you may end up spending way too much money on a power generator that is not compatible for your needs or offers way too much power. 

How Will You Use Your Power Generator

When purchasing a power generator, you will also need to consider what type of power you will be using it for. For example, if you are purchasing a backup generator for your home, then you will likely need it to power everyday appliances and lighting fixtures.

If you are shopping for a backup generator for your business, then you will likely need it to power up networks, phones, and computers. You might also need any on site electricity tools and lighting to be powered as well.

For recreational use, a backup generator can be handy for things such as camping, boating, and tailgating. Knowing the needs of your backup power generator will help you determine which generator to shop for. 

While some machines, such as a toaster, require minimal power to run, be sure to consider the power surge of the unit turning on and performing different functions in your overall calculations.

Standby or Portable Generator?

After you know  your needs, the next thing you will want to consider is whether or not you need a portable generator or a standby generator. The difference between the two is imperative to know when you are shopping for a generator.

Standby Generator

A standby generator is a permanently installed fixture that goes in your place of residence or business. Once you install a standby generator you generally cannot move it and it stays in its fixed location. Standby generators will typically run on liquid propane or natural gas. And when your power does go off, your standby generator that automatically kick in. This is great because you do not have to fuss with your generator to get it up and running. In addition to that, you will not have to worry about any wiring or electrical cords with a standby generator. When shopping around for a standby generator you will have several options that you can choose from. Generators come in different sizes so that they can cater to different circuits. However, for the most part a standby generator can provide all the power you need for a typical home as far as heating, cooling, lighting, and cooking is concerned.

Portable Generators

Portable generators give you a lot more flexibility than standby generators do. This is because portable generators are the ideal option if you need to move your generator from one location to another. Unlike standby generators, portable generators are designed to give  you a quick and easy option for powering up whatever it is you need. For this reason, portable generators are the ideal option to go with if you are looking for a recreational use generator such as one for camping or traveling.

Portable generators are gas powered or propane powered. There are some portable generators that are even solar powered. Gas powered portable generators will emit carbon monoxide so you need to be certain that you never use it indoors. Because solar-powered portable generators operate on clean energy, they are safe to use both indoors and outdoors. Because you can transport your portable generator from one location to another, you will have to deal with power cords and wiring. This is the main downside to a portable generator when compared to a standby power generator. 

Durostar: Behind the Brand

When purchasing any product, it is especially important to know the brand you are shopping from with that being said, let’s talk a bit about the brand, Durostar.

The DuroStar brand has been around long enough to have a well-established reputation for quality and reliable products. Durostar currently has three different types of generators you can shop for. They offer generators for your home, generators for your work, and generators for recreational activities. Whatever situation you find yourself in, durostar has been able to meet your demands of life by offering dependable quality power solutions so that you can always stay connected. 

Where to Purchase A Durostar Generator?

Because the brand is so dependable and reliable, it is unsurprising that they have made a name for themselves and can be found in a variety of retailers. Currently, you can find many different DuroStar products for sale at Home Depot as well as at online retailers such as Amazon, Max Tool, and Sears.  of course, you can also shop directly at DuroMax Power as well. 

Now that you have a bit of understanding about generators and the Durostar brand, let's get into our review of the Durostar DS4000S. In our review, we will cover a variety of things including the overall design of the Durostar DS4000S  and the performance that it has to offer. In addition to that, we will go over the ease of use and how efficient the product is overall. We will also touch briefly upon the price of the Durostar DS4000S and any warranty information that it comes with. 

What Is DuroStar DS4000S and How Does It Work?

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The DuroStar DS4000S is a gas-powered generator with a 7 Hp engine that is air cooled. It offers a variety of plug options and can produce a continuous flow of 3300 watts. This generator operates on gas and has a total run time of 8 hours on a single 4-gallon tank.

The DuroStar features:

  • A sturdy and traditional metal frame that firmly secures the engine and other components in place with minimal movement
  • A muffler that serves to make the unit quieter during use
  • A 4 stroke OHV engine mounted with isolated mounts for smoother operation


The  design of Durostar DS4000S is what makes it stand out from the crowd in terms of durability. The Durostar DS4000S features a very rugged look that is  sleek yet modern. The power panel is easy to locate and easy to operate. The power panel gives you the ability to plug in two 220v household outlets and one 120v 30A twist-lock outlet.  The panel also includes a voltmeter. This voltmeter gives you an adequate reading of how much voltage is being expended.


The DuroStar DS4000S is a gas-powered generator with a 7 Hp engine that is air cooled. It offers a continuous flow of 3300 watts. This is an ideal amount of power for any standard size home. With the two household outlets and the one twist-lock Outlet, you can easily power up all your needs without having to sacrifice too much. Because this generator operates on gas, you will find that it has a total run time of 8 hours on a single 4-gallon tank. For many homes across the nation, this is adequate enough to get you up and running for a short term fix. Of course, if you will need to use your portable generator for more than just one day, be sure to have plenty of additional gas stored up. 

Another feature that makes the Durostar DS4000S stand out from the rest is the fact that it has a low oil shut off option. When your Durostar DS4000S  senses that it is low on oil, it will automatically shut off. This allows your portable generator to remain in proper operation even when you are not able to keep tabs on oil amounts. 

Ease of Use

When it comes to operating the Durostar DS4000S,  you will find that it is rather straightforward and simple. The start type on this generator is recoil, and it is rather easy to move around thanks to the fact that it only weighs a little over a hundred pounds.  Even those who do not have adequate experience running a backup generator will find that the Durostar DS4000S is simple and straightforward. 

Price Point 

When it comes to the price point of Durostar DS4000S  you will find that it falls on the middle of the pricing spectrum. While this is not a generator that can power up your house for an extended period of time, you do get ample power  in moments of need. In addition to this, it does help that it is gas powered. This gives you control over how long you keep your generator running for. For these reasons, many customers feel that the Durostar DS4000S  is fairly priced. You certainly will not be overpaying for a generator and you will be getting a quality and dependable product in your purchase. 

The DuroStar features:

  • A sturdy and traditional metal frame that firmly secures the engine and other components in place with minimal movement

  • A muffler that serves to make the unit quieter during use

  • A 4 stroke OHV engine mounted with isolated mounts for smoother operation

If you are in the market for a traditional generator fit for emergency use or more frequent job site use, this generator also has an optional wheel and stand package that makes it easy to move to where it's needed. We will talk about these accessory options in just a moment. Overall, the Durostar DS4000S is light enough for one person to lift and the optional handle makes placing it in different areas easy.

Use Cases and Specifications

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For emergency situations, this generator can run a few appliances, and is capable of a 4000-watt surge should multiple devices turn on at once. While this unit isn't robust enough to run a whole house of appliances at once, it is more than sufficient as an emergency unit to power things like a refrigerator or freezer.  Because of this, it is the ideal option to go with if you are looking for something to keep in your home in the event that a power outage does happen.

Easy to Transport 

This generator measures 20x27x22 which makes it relatively small for the amount of power that it puts out.  While it is relatively small, you will find that Durostar DS4000S does measures out to about 105 lb in weight as previously mentioned. While this is not incredibly heavy, you do have to consider this if you plan on moving it around from one location to another.

The DuroStar DS4000S generator is also ideal for use with RV's when camping, at sporting events, or other remote situations where power is needed. The brand has a long-standing reputation for providing high-quality units known for longevity at an affordable price.

If you plan to use many different lower wattage appliances or tools, you may want to invest in a splitter to increase the number of plugs available on the unit. These are available for purchase and run anywhere from $15-$20. You will need to consider that doing this will have an impact on the runtime of this portable generator.

Running Appliances

The DuroStar is excellent for when you're on the job site. But you will need to know how many appliances it can handle when your home is out of power as this will allow you to use the generator more effectively. Generally, it is advised to check your appliances for their running watts and surge watts to avoid overloading the generator. 

For example, a refrigerator may have running watts around 700, but these watts can surge to 2200 when the unit starts up or perform different functions. The DuroStar DS4000S can also power other appliances such as Microwave ovens, coffee makers, toasters, well pumps, sump pumps, and furnace fans.

How many of these appliances you’ll be able to run at once will depend on the individual appliances’ power requirements, but in many instances, users should be able to run two or more lower powered machines at the same time.

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As with any generator, the DuroStar will require regular maintenance. The more you use this generator, the more often it will need things like oil changes. But if you use it frequently, you may not need to drain the remaining gas from it each time. Not properly maintaining your Durostar DS4000S will not only lead to a shortened lifespan of your product, but you may experience more frequent issues when running your generator.

Oil changes and removing unused gas is easy with removable plugs conveniently located in the reservoirs. By removing these plugs, you can quickly drain the fluids into another container for easy storage or disposal. Be sure that your generator  has been shut off and has been sitting until the excess oil has cooled before you dump it out. Not giving it adequate enough time to settle may result in you injuring yourself and potentially damaging the generator.

The operation manual that comes with the generator will also detail regular maintenance that will need to be performed for the motor to run its best for prolonged periods of time. There are also recommendations for the kind of gas and oil that should be used to get the best overall performance and runtime. Overall, maintenance of your durostar Durostar DS4000S is not something that requires professional assistance. When you read the instructions thoroughly and adhere to them regularly, you should have no issue keeping your Durostar DS4000S generator running smoothly.

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While the oil and gas should be very easy to find, it’s important to note that following the maintenance recommended in the manual is crucial if you intend to use this unit frequently. If you plan to put this unit in storage for a prolonged period, you'll also want to follow the guidelines in the manual carefully.

Leaving gas or oil in the generator for extended periods of time can damage some of the internal components. It can also damage the engine to the point that it will need repair to run again. Because of this, you need to be sure that if you are going to only need to use your generator once every blue moon, to empty out the contents thoroughly before putting it away for storage.

You may also need to replace spark plugs and air filters after each time you reach 200 hours of use since the last time they were changed. You'll also want to start your generator at least once every 30 days to ensure that internal components stay adequately lubricated.

If you follow all of the guidelines set in the manual, your generator should run smoothly. However, if you are still experiencing issues, you’ll want to contact the DuroStar customer service for assistance. Their customer service is well known for being helpful and professional when assisting buyers with their units.

What Customers Have to Say about the DuroStar DS4000S

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Customers who have purchased the Eurostar DS4000s are thoroughly satisfied with their purchase. This is because this is one of the easiest to use generators on the market. The DuroStar comes with a handy fuel gauge that allows users to see how much gas is remaining to better calculate the remaining run time on a single tank of gas. This unit also features a low oil shutoff feature that protects the engine from seizing up and damaging the engine should there be a shortage of oil.  This in itself is a handy feature to look forward to because unlike many generators that can make operation intimidating because of the fact that it is gas powered, the Durostar DS4000S takes the guesswork out of everything gas related.

The fully featured power panel is also super easy to use so that you know exactly how much power you are producing and for how long. The power panel features an oil warning light, a circuit breaker, a voltmeter, and several power outlets which makes fully utilizing this generator easy. Users can see how many volts are being used, and the circuit breaker helps prevent unnecessary damage to the unit during power surges, or power fluctuations.

This unit also features enhanced noise muffling with the muffler system that is attached to the motor. This muffler combined with the specialized motor mounts brings the overall noise level of this unit down to 69 decibels during operation.  Unlike other portable generators on the market, you do not have to deal with unruly operation noise when you are powering up from your back up.

Another component that makes the DuroStar unique is the add-on kits that provide optional wheels, stabilizing feet, and a handle for convenient positioning. Due to the weight of this generator, you won't want to move it often, but the optional hardware can make moving it much more comfortable. If you are constantly going to be using your generator or are working on a job site or traveling on an RV, then these additional hardware options can be super helpful. You do not have to worry about lugging around your generator and although it may be heavy, the additions do help you lighten the load of it.


While you can purchase this generator from the retailer itself, we suggest starting with Amazon first. On Amazon, you can find the Durostar DS4000S portable generator for a rather affordable price. It is on Amazon that you will also be able to find the optional wheel and handle kit runs. Unsurprisingly, these accessories are also a little bit cheaper when you purchase them on Amazon. Other comparable models range in price from $170-$500. The cost of similar generators fluctuates depending on what other features are included, how they are powered, their weight, overall dimensions, and their wattage output. The Durostar DS4000s offers just the right amount of power so that you are not overwhelmed with the operation and are not getting more then you need.


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A more expensive price tag doesn’t mean that everything about the generator will be better, but the Durostar DS4000S has many of the features found in the higher priced models without the accompanying price tag. This generator is intended to be a workhorse for rugged situations that demand reliability and the quality and features of this unit reflect that intent. For a portable power generator, we are certain you will be pleased with all that it has to offer. 

If you are willing to spend more, it is possible to get units that have a higher overall wattage, electric start, smaller dimensions, quieter motors, and overall more power. However, this model dutifully serves some of the most common use cases people buy generators for and is priced affordably.

Public Perception (Other DuroStar Generator Reviews)

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DuroStar has a well-established reputation for building quality generators, and they are honest about the limitations, features, and specifications of their products. Their realistic details about their products offer buyers the opportunity to better understand their purchase and how the generator will perform in their specific situation.

This honesty has gained DuroStar high ratings for its generators online, as individuals are better able to consider their needs and how they can meet those needs with specific models being offered. This particular DuroStar generator is marketed as a workhorse, and the company is very forthcoming about the features, weight, and other metrics that matter most.

How It Compares

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The DuroStar generator is most similar to models offered by WEN, and Goplus, but at a slightly lower price point. While these brands provide comparable wattage, weight, and control panel features, the WEN model comes with a built in handle and wheels. The Goplus and DuroStar are both EPA approved and feature a manual pull start. While it's nice that the competition does include the features that you would have to buy in addition to the generator with the Durostar DS4000S, you do have to consider the price difference.

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When comparing these models, it's also important to remember that they are all gas powered, and their overall size is approximately the same. Regardless of their size, they are also roughly the same weight and use the same basic steel structure that is used for mounting all of the components.

For all of these comparable models, the online reviews are similar with several hundred reviews amounting to an overall rating of 4/5 stars or higher. Buyers are very pleased with the overall performance of the DuroStar for the slightly lower price and appreciate that there are additional accessories available as they are needed. Afterall, the Durostar DS4000S is a product from a reputable brand. This dependability and reliability with customer service is something you do have to consider as it can significantly improve your overall experience with the product. 


This unit is not CARB- compliant which will only affect buyers in California, but it does include a 1-year warranty which is plenty of time to use the unit and see how it performs. The company is very forthcoming about the limitations and ways that this unit excels and its customer service is professional and helpful with practical inquiries.

Noise Level 

Where this generator sets itself apart from the competition is in overall value. At approximately 11 watts of electricity produced for each dollar in cost, this generator easily tops the list of many generator comparison guides.

You wouldn’t want to use this generator to power electronics that are much more sensitive to smaller fluctuations in power, but this highly reliable unit will run quietly compared to other models at similar prices which is a great feature when it comes to generators which are known for being loud.

Coupons and Deals

The best time to pick up a generator might be in the spring when big box stores are having deals or other holidays such as Black Friday. You may also be able to find this generator listed on Amazon as the “deal of the day” or on other online retailers’ sites that frequently host discounted sales.

If you choose to purchase this unit on Amazon, you may be able to take advantage of their offer to get an Store Card which could get you up to a $40 discount off the purchase of this item.

Unfortunately, this deal is a one-time only option, and you might get more of a discount waiting for a holiday such as Memorial Day, Labor Day, or Independence Day and shopping the sales found at big box stores.

There are also factory outlet websites that carry DuroStar products at a discount. Although this specific product may not be listed there, they have a rotating selection of products and sometimes offer free shipping. Before purchasing, you’ll want to ensure that the warranty still stands and that these products haven’t been previously used and refurbished.

Final Thoughts on the Durostar DS4000S 

The DuroStar generator is the perfect choice for someone looking for a versatile and affordable generator that is both durable and of sound quality. The option to add on wheels and a handle is also great for those who plan to use it more often and saves money for those who plan to use this unit only on occasion. With the Durostar DS4000S you exactly what you need and you are not overwhelmed with too many features and options. 

Overall, this product has very sound reviews, and several buyers have used it for extended periods without complaint. The affordable price also includes several features such as a well- developed control panel with helpful shut-offs that prevent damage to the generator itself.

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Last update on 2021-01-28 at 16:57 / Affiliate links / Images from Amazon Product Advertising API