The Best DuroMax XP4850EH Dual Fuel Review: Buyer’s Guide

By Jack | Reviews

Jul 06
duromax xp4850eh

In this review, we’re taking a look at the DuroMax XP4850EH. We’ll review its specifications, strengths, and weaknesses so you can decide if this is the right generator for your needs.

We’re all dependent on power to live our daily lives, and when the power goes out, it can be more than an inconvenience. Long-term outages mean food will spoil, and heat might fail, leaving you fumbling around by candlelight until someone else figures out what the problem is.

The solution to this situation is a backup generator. These generators provide enough power to keep your major devices running until you can get your electricity back.

Why Should You Have a Back-Up Generator?

Having a back-up generator sort of acts as a form of insurance. You never know when or if you'll need it, but you'll be extremely thankful that you have it if you do happen to need it.

There are numerous reasons to have a back-up generator, such as: living an in area with frequent blackouts, if you rely on electricity for medical equipment, or you work at home and rely on electricity to do your daily job.

A back-up generator is great to have simply for a peace of mind and to be prepared for the unexpected.

Benefits of owning a back-up generator:

  • Allows you to operate your home, such as heating and cooling, computers, televisions, and other major appliances
  • Fast and automatic power during a blackout
  • Protects your home from voltage fluctuations and surges when power returns
  • Allows you to stay comfortable and safe during a power outage
  • Gives you peace of mind that your entire family is safe during a blackout
  • Safely operates during man-made and natural disasters

What is the DuroMax XP4850EH Dual Fuel?

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DuroMax XP4850EH specs

The DuroMax XP4850EH Dual Fuel is a simple, yet powerful backup generator that has multiple uses. You can use it for camping if you need a substantial source of power, but its most important use comes when you lose power in your home. The generator is powerful enough to keep even major appliances working in your home until you’re able to regain electricity.

Power Output

The power output of the DuroMax XP4850EH produces enough power to keep some of the larger appliances in your home running. Air conditioners, fridges, microwaves, and pumps will be able to run off the power the DuroMax generates.

DuroMax XP4850EH control

The generator comes with a 210 cc, 7-horsepower engine, with an exterior displaying three power outlets on the far right of the control panel. Unlike some of the other generators we’ve seen, the DuroMax XP4850EH places these outlets close to one another to utilize all the space they can.

The engine itself is capable of producing 4,850 total surge watts and 3,850 running watts, which is a considerable amount of power for a generator that falls on the lower end of the pricing scale. You’d be hard-pressed to find a dual power generator for a lower price, especially one capable of outputting this kind of power.

Fuel Type

The “dual fuel” moniker in the name of the DuroMax XP4850EH gives you an indication of what kind of fuel this generator accepts. You can choose to power it with either gasoline or propane, depending on your power needs.

Propane burns cleaner and for longer than gasoline, but it isn’t as cheap or easy to purchase. In the winter, you might run into problems of the propane canister getting too cold, and failing to power the engine. On the other hand, propane lasts for far longer than gasoline, so you can stockpile some fuel in case you need it one day.

Gasoline is far cheaper than propane, but it won’t last as long. You can expect the generator to run for about 20 hours on propane, but only around eight if you’re powering the XP4850EH with gas.

Thankfully, you don’t have do decide propane over gas or vice versa with this generator. You can choose one or the other or both if you want to be safe. The multiple options in fuel type give you much more versatility in an emergency situation.

The run times are about standard, and you probably won’t find many generators lasting much longer than this one.

Starting the Generator

A lot of generators require cranking and pulling that can be challenging to complete when you need power fast. If your power goes out in the middle of the night, for instance, it can take a half hour or more to get your backup generator running. This is an inconvenience that doesn’t exist with the DuroMax XP4850EH.

The XP4850EH has a key-turn mechanism, which can save you a lot of time and hassle when you’re in a pinch. There’s a 12-volt electric battery included in the device, and as long as you keep it charged, you’ll be able to start the generator without any effort whatsoever.

If the key fails, the charge in the battery will hold enough power to get you going. There is also a manual starter as a last resort, but you should need to use this starting method in most cases. In our tests, the generator started immediately after one or two firm pulls. You won’t have to yank your arm out of its socket with this generator, and DuroMax designed an EZ pull mechanism to work with even the most lackluster of pulls.

Power Outlets and Control Panel

It’s more important than ever to have an intuitive control panel in your generator. Older generators used to be more complex and attracted customers who already had a background in understanding engines and generators. Now, these companies and manufacturers cater to a wide audience, meaning they have to create control panels that most people will be able to understand without any prior knowledge.

NEW DuroMax XP4850EH

Thankfully, the DuroMax delivers in this area. It walks you through all of the features in plain English, with an analog display showing power output and plain text describing the dual-fuel function. The key starter is in plain view, making it hard to miss - especially in well-lit situations.

On the side of the generator, you’ll see two 120-volt sockets that can power smaller appliances, as well as a 120-volt/240-volt outlet that can handle the larger stuff.

Noise Level

There’s always going to be a bit of noise when you’re running a portable generator. There isn’t a generator on the market that will run silently with enough power to fuel your appliances - especially the larger ones.

As you can expect, there will be some noise when running this generator. DuroMax lists the noise level of the XP4850EH ar 69-dB, which isn’t especially loud when you compare it to some of the other options in the category.

The generator can, however, get a bit louder when you have it running on full-blast. If you’re trying to squeeze every bit of energy out of the DuroMax XP4850EH, you’re going to hear a fair bit of noise. If you’re only running a few devices through the generator, though, the sound is hardly noticeable.

This is especially important when you consider the portability of the generator. Situations often dictate how much noise will be acceptable, and the DuroMax adapts to your needs.

When you’re running the generator as a backup for your home, you probably won’t notice the loud sound. You’ll likely be spending most of your time away from the generator, so you won’t be around when the noise level reaches its upper limits.

If you’re camping or completing another outdoor activity, on the other hand, the load on the generator probably won’t be as great. It will run more quietly, Meaning it won’t disturb quiet conversations - even when you aren’t far from the generator.


The DuroMax XP4850EH Dual Fuel came out a while ago, so you can likely find it for much cheaper than the original price. Check for deals and coupons on the DuroMax website, but the most affordable option we’ve found is through Amazon. 

There are certainly generators out there that are cheaper than the DuroMax, but these probably won’t be as versatile as this one. The dual-fuel option is fantastic for all situations, so we think it's worth the price tag.

If you can, make sure there’s a manufacturer’s warranty when buying this product. We didn’t find any durability issues, but that doesn’t mean you won’t encounter any. Backup generators are crucial in certain situations, and you need to be sure yours is going to work when you need it to.

Maintenance and Warranty

The DuroMax XP4850EH is a low-maintenance generator, but that doesn’t mean you don’t have to tend to it at all. The low-oil indicator and shut off feature gives you some room for error, so you don’t have to worry about burning out the engine when you don’t have enough oil.

The manufacturer's warranty covers all parts for a full year with a 30-day total unit replacement. If you tend to the machine properly, though, you shouldn’t have to worry much about getting any replacement parts for some time.

All you have to do to maintain the generator is change the oil, keep the engine clean, and make sure the airflow is working correctly. Keep the gas full when it’s in use, or you might have a bit of a hard time getting it to start again.

Maintenance on the DuroMax is about what you’ll find in any modern generator. These are almost all user-friendly and cater to a vast market that might not fully understand engine mechanics and maintenance.

Strengths and Weaknesses

On the whole, we found that the advantages of the DuroMax XP4850EH far outweigh its weaknesses. The dual-fuel option raises the price, for instance, but it provides a level of security you won’t find in gas or propane-only generators.

You can save some money by choosing a less versatile option, but you shouldn’t compare the DuroMax with cheaper models. Most customers purchasing the DuroMax XP4850EH will be looking for the dual fuel feature, and you’ll be hard-pressed to find one at a lower price point.

The high wattage of this generator is another point in the strength column. You can power most of the major devices in your house at once, which will make sure your food doesn’t spoil, and your heat stays on when it counts.

The noise level of the generator is a bit of a weakness, but there aren’t too many quieter options that produce a similar level of power. Noise only begins to cause a problem when you run the engine on max load. Other than that, it stays rather quiet.

Some other notable strengths include the sturdy steel frame of the generator and its portability. The wheels make it easy to move around, which means you can bring it on a camping outing or easily move it out of earshot if it’s getting too noisy.

Public Perception

DuroMax XP4850EH gas generator

There are quite a few user reviews for the DuroMax XP4850EH through multiple outlets, including Home Depot, eBay, Amazon, and other online retailers. The overwhelming sentiment of these reviews is that of positivity, especially from those who have used the XP4850EH when they run out of power for an extended period.

Gasoline, while initially cheap and easy to get a hold of, can become scarce in disaster situations. The dual-fuel option with the DuroMax XP4850EH gives users the ability to stockpile and use propane in place of gas, which will keep the generator running for far longer. This is probably the public’s favorite feature from the DuroMax XP4850EH.

There are a few negative reviews mixed-in as well. The biggest complaint might be the frequency of oil changes.

The DuroMax XP4850EH requires that you change the oil every 20 hours, which is far too often for a lot of users. This can be particularly annoying when you’re using the generator for days at a time, though most users probably won’t encounter outages that last this long.

Apart from that, the noise level of the XP4850EH was the other widespread complaint. This piece of criticism is a bit scattered, though, with some users praising the lack of noise and others complaining that it’s too loud. It might be the case that some users are near others, or that specific models make more noise.

What We Think

On the whole, we were pleasantly surprised by what we found from the DuroMax XP4850EH. The generator is powerful, portable, and isn’t too expensive for a dual-fuel generator. The noise can be a concern for some, but only when you’re connecting multiple high-energy appliances to the generator.

The versatility of fuel is the most significant selling point for the DuroMax XP4850EH. For a relatively low price, you can choose to power the generator with either gas or propane. You can take it on a camping outing with gas, then stockpile propane in case you encounter a power outage at home.

DuroMax XP4850EH Dual Fuel
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Review Summary:

We were impressed by the DuroMax XP4850EH and would recommend it for those looking for a portable, versatile generator for home and outdoor use.