duromax XP12000E portable generator

DuroMax XP12000E Portable Generator Review

A Reliable Power Source

It always feels good to have a portable generator you can rely on in times of power emergencies. Having a reliable power source in such situations often means peace of mind. You won’t have to experience major disruptions at home or at your worksite. The DuroMax XP12000E is a powerful piece of equipment that’s handy to have around for emergencies


  • Dimensions: 40 x 29 x 27.5 inches
  • Weight: 260lbs
  • Starting watts: 12,000W
  • Running watts: 9,500W
  • Voltage: 120V/240VAC and 12VDC
  • Amperage: 39.6A/79.2A
  • Frequency: 60Hz
  • Horsepower: 18HP
  • Engine type: 4-cycle, air-cooled, spark-ignition
  • Engine size: 457cc
  • Engine speed: 3,600rpm
  • Start type: electric, recoil
  • Fuel type: gasoline
  • Fuel tank capacity: 8.3 gallons gasoline
  • Runtime at half load: 8.83 hours
  • Volume level: 74dB
  • EPA- and CARB-approved for all 50 states

Engine capacity and wattage

The DuroMaxduromax XP12000E portable generator is nicknamed “The Beast”; it’s a moniker it shares with its twin model DuroMax XP12000EH. Just like its twin, this portable generator boasts of 12,000 W starting wattage and a running wattage of 9,500 W.

With this much power, you can safely keep essential household appliances like refrigerators and air conditioners running, even at the same time. This is especially useful during storm season when power outages are common.

You can also use The Beast to plug in heavy-loading power tools at your worksite. Additionally, if you travel around in an RV, you can stay comfortable in your recreational vehicle as if you’re right at home. Running RV appliances using the DuroMax XP12000E is a cinch.

The Beast is also designed with convenience in mind. You can start it with a simple key switch, just as if you’re starting your car. A built-in muffler guarantees that this portable generator runs quietly.

With a noise level of only 74 decibels, it’s only as loud as your typical dishwashing machine. It’s also fitted with a choke rod, which allows the generator to start even in cold conditions.

Fuel consumption

The DuroMax XP12000E is built to run specifically on unleaded gasoline with an octane rating of at least 86. According to its user manual, the reason for this is unleaded gasoline leaves fewer deposits on generator engines and spark plugs.

This means you can expect your generator’s exhaust system to have a longer life span. This is the main difference between this model and the DuroMax XP12000EH, which can run on either gasoline or propane.

With its gas tank on half-load, The Beast can keep running for over eight hours. It’s highly recommended that you check the fuel gauge before starting your generator. When refilling the tank, make sure you’re outdoors. Additionally, take care that you’re not filling the tank beyond the fuel strainer shoulder.


Thanks to DuroMax’s MX2 Technology, you can run The Beast on both 120V and 240V, even at the same time. Or you can direct the generator’s full power to the 120V receptacle. All it takes is a flip of the voltage selector switch on the control panel.

The DuroMax XP12000E comes with five outlets: two 120V 20A GFCI outlets, one 120V 30A twist-lock outlet, one 120V/240V 30A twist-lock outlet, and one 120V/240V 50A heavy-duty outlet. This variety of outlets ensures maximum compatibility with your appliances and equipment. They also allow you to hook up this generator at your RV site when needed.

A warning, though: you can’t use the 120V/240V receptacles when you switch the voltage selector to just 120V.

Ideal usage

The DuroMax XP12000E is ideal for emergency situations, such as power outages during hurricanes, lightning storms, or snowstorms. It may seem like an investment at a little over $1,000, but it’s durable and handy to have just in case.

The Beast isn’t just good for emergency situations. If you’re someone who works outdoors using heavy-loading power tools, you can rely on this portable generator to power your worksite efficiently. It’s easy to move this generator from place to place too, thanks to its wheel and handle kit.

However, a pet peeve among the customers who bought this model of The Beast is the wheels are made with foam rubber. This means the tires can form flat spots if it’s not moved regularly.

You can also use The Beast to play. It may be too big to bring to tailgate parties, but who would notice? Of course, it may not be a good idea to take this generator with if you’re out in the rough at a tent-camping trip. Even if the campground allows such equipment, it may be more of a hassle because of its size.

What’s in the box

  • Oil funnel
  • Spark plug wrench
  • Toolset
  • Wheel and handle kit
  • DC charging cables
  • Downloadable owner’s manual

What users say about the DuroMax XP12000E

Users who gave this DuroMax genset a positive review cited this generator’s fuel efficiency for liking the product. However, those who stamped a negative score on this model reported problems such as oil leaking and the battery dying after a few hours’ use.

If you need more information or are ready to buy this DuroMax model, check out this page for the generator.

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