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10 Best 12000 Watt Generator 2025 in the United States

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Our Top Picks

#1

Winner

DuroMax XP13000HXT 13,000-Watt 500cc Tri Fuel Gas Propane Natural Gas Portable Generator with CO Alert, Black/Blue

Rating
10.0
Chosen by1,408
Power Output
Fuel Type
Run Time

Most important from
2313 reviews

Power Output
The 50-amp outlet is a critical feature that supports heavy loads like whole-house AC units and furnace fans, outperforming competitors with lower amp outlets.
Fuel Type
The tri-fuel capability offers valuable flexibility, allowing seamless switching between gasoline, propane, and natural gas to match fuel availability or preferences.
Run Time
Running on propane, the generator performs smoothly and can operate non-stop for extended periods, handling significant household loads.
Portability
Despite its weight, the included wheel and handle kit make moving the generator manageable for most users.
Noise Level
The generator produces noticeable noise typical for its size and power, but this is an expected trade-off for its robust 500cc engine and output.
Starting Mechanism
Starting the generator may require a few attempts, especially when using natural gas, but it reliably kicks in after a brief priming period.
Outlets and Connectivity
The 50-amp outlet is a critical feature that supports heavy loads like whole-house AC units and furnace fans, outperforming competitors with lower amp outlets.

The DuroMax XP13000HXT is a powerful portable generator offering 13,000 starting watts and 10,500 running watts, making it suitable for running an entire home during outages or for commercial use. One of its standout features is the tri-fuel capability, allowing you to choose between gasoline, propane, or natural gas. This flexibility is great for adapting to fuel availability or preferences. It runs on a strong 500cc engine and has an 8.3-gallon fuel tank, providing a decent runtime, though exact hours depend on fuel type and load. Starting the generator is easy with both push-button and remote start options, adding convenience especially during emergencies.

It includes multiple outlets, including a 50-amp transfer switch-ready outlet, which helps connect to home circuits or heavy equipment safely. Weighing 240 pounds, it’s on the heavier side but comes with a wheel and handle kit to help move it around. Noise level is around 74 decibels, which is somewhat loud but typical for generators of this size. The built-in CO Alert enhances safety by detecting harmful carbon monoxide levels. On the downside, its size and weight may make it less ideal for frequent transport or small spaces, and while the tri-fuel option is a bonus, switching fuels requires some adjustments visible on the control panel.

This generator is well-suited for homeowners and small businesses needing reliable, flexible high power output during extended outages or demanding work sites.

Rating
10.0
Chosen by1,408
Power Output
Fuel Type
Run Time

Most important from
2313 reviews

Power Output
The 50-amp outlet is a critical feature that supports heavy loads like whole-house AC units and furnace fans, outperforming competitors with lower amp outlets.
Fuel Type
The tri-fuel capability offers valuable flexibility, allowing seamless switching between gasoline, propane, and natural gas to match fuel availability or preferences.
Run Time
Running on propane, the generator performs smoothly and can operate non-stop for extended periods, handling significant household loads.
Portability
Despite its weight, the included wheel and handle kit make moving the generator manageable for most users.
Noise Level
The generator produces noticeable noise typical for its size and power, but this is an expected trade-off for its robust 500cc engine and output.
Starting Mechanism
Starting the generator may require a few attempts, especially when using natural gas, but it reliably kicks in after a brief priming period.
Outlets and Connectivity
The 50-amp outlet is a critical feature that supports heavy loads like whole-house AC units and furnace fans, outperforming competitors with lower amp outlets.
#2

Generac 12,500 Starting Watt Tri-Fuel Portable Generator - Electric Start - Gas, Propane or Natural Gas - Home Backup, Jobsite, or RV - Quiet Operation - Long Runtime - 49-State Compliant

Rating
10.0
Power Output
Fuel Type
Starting Mechanism

Most important from
217 reviews

Power Output
Easily powers essential household appliances during outages with efficient fuel consumption over multiple days.
Fuel Type
Tri-fuel capability provides unmatched flexibility to run on natural gas, propane, or gasoline.
Starting Mechanism
Starts reliably every time, making operation straightforward and hassle-free.

The Generac GP9500E Tri-Fuel Generator is a strong choice if you need up to 12,500 starting watts and about 9,500 running watts, which fits well for home backup, job sites, or RV use. One of its biggest strengths is the ability to run on three types of fuel—gasoline, propane, or natural gas—giving you flexibility when fuel availability varies. The electric start makes it easy to get going without manual effort, which is convenient during power outages. The generator also offers a good runtime of up to 9.5 hours at half load on a full 7.5-gallon gas tank, meaning it can keep your power going for a longer time without frequent refueling.

Portability is decent with heavy-duty never-flat wheels and a sturdy steel frame, but keep in mind it weighs 219 pounds, so moving it might require some effort. It includes three covered outlets, protecting them from dust and moisture, which is practical for outdoor use. The COsense technology adds an important safety feature by detecting carbon monoxide and shutting off the generator to keep you safe indoors or in enclosed spaces.

Noise levels are described as quiet operation for its size, but as with most generators providing this power, it will still produce noticeable sound. If you want a reliable, flexible fuel option generator with electric start and solid runtime, this model fits the bill well. It may feel heavy if you need to move it often, and while quieter than some, it’s not silent. For those needing a powerful backup or worksite generator with multi-fuel convenience, the Generac GP9500E is a practical and dependable choice.

Rating
10.0
Power Output
Fuel Type
Starting Mechanism

Most important from
217 reviews

Power Output
Easily powers essential household appliances during outages with efficient fuel consumption over multiple days.
Fuel Type
Tri-fuel capability provides unmatched flexibility to run on natural gas, propane, or gasoline.
Starting Mechanism
Starts reliably every time, making operation straightforward and hassle-free.
#3

DuroMax Gas Powered Portable 12000 Watt-Electric Start-Home Back Up & RV Ready, 50 State Approved Generator, Blue, Black

Rating
9.7
Starting Mechanism
Power Output
Portability

Most important from
12131 reviews

Starting Mechanism
Starts reliably even after long storage, with the electric start making powering up effortless once the battery is connected.
Power Output
Delivers robust power easily handling heavy loads like refrigerators, freezers, and 3-ton HVAC units without issue.
Portability
Solid wheels and foldable handles make it portable over uneven terrain despite its heavy weight, though tires can develop flat spots if stored long-term.
Outlets and Connectivity
Offers flexible power connections and supports a full 200 amp house load when used prudently.
Noise Level
Quietness is reasonable for a 12,000-watt generator, balancing noise and performance effectively.

The DuroMax 12000-watt generator delivers strong power with 12,000 starting watts and 9,500 running watts, making it capable of handling heavy household appliances like air conditioners, refrigerators, and power tools. It runs on gasoline with a large 8.3-gallon tank, providing about 8 hours of runtime, which suits extended use during power outages or outdoor activities. The electric start feature makes it easy to power up without the hassle of manual pulls.

It includes valuable safety features like low oil shut-off to protect the engine and an idle control that reduces fuel use and noise when not under heavy load. Portability is decent considering its 217-pound weight, but the foldable handle and wheel kit help make moving it easier, though it remains relatively bulky. The generator offers multiple outlets and supports both 120V and 240V power, allowing flexible connections for various devices.

Although it is somewhat heavy for casual transport, its power and features make it a solid choice for home backup or RV users who need reliable and versatile performance.

Rating
9.7
Starting Mechanism
Power Output
Portability

Most important from
12131 reviews

Starting Mechanism
Starts reliably even after long storage, with the electric start making powering up effortless once the battery is connected.
Power Output
Delivers robust power easily handling heavy loads like refrigerators, freezers, and 3-ton HVAC units without issue.
Portability
Solid wheels and foldable handles make it portable over uneven terrain despite its heavy weight, though tires can develop flat spots if stored long-term.
Outlets and Connectivity
Offers flexible power connections and supports a full 200 amp house load when used prudently.
Noise Level
Quietness is reasonable for a 12,000-watt generator, balancing noise and performance effectively.

Buying Guide for the Best 12000 Watt Generator

Choosing the right generator can be a crucial decision, especially if you need a reliable power source for emergencies, outdoor activities, or job sites. A 12000-watt generator is a powerful machine that can handle a variety of tasks, but it's important to understand the key specifications to ensure it meets your needs. Here are some key specs to consider and how to navigate them.
Power OutputPower output, measured in watts, indicates how much electricity the generator can produce. A 12000-watt generator provides a substantial amount of power, suitable for running multiple large appliances or tools simultaneously. If you need to power a whole house during an outage or run heavy-duty equipment, this level of output is ideal. For lighter tasks, such as camping or small appliances, a lower wattage might be sufficient.
Fuel TypeGenerators can run on various types of fuel, including gasoline, propane, and diesel. Gasoline is widely available and easy to use, but it has a shorter shelf life. Propane burns cleaner and can be stored for longer periods, making it a good choice for emergency preparedness. Diesel engines are more fuel-efficient and durable, suitable for heavy-duty use. Consider your fuel availability and storage options when choosing the right type for you.
Run TimeRun time refers to how long the generator can operate on a full tank of fuel. This is important for planning how often you'll need to refuel, especially during extended power outages. Generators with longer run times are more convenient and require less frequent refueling. Look for a generator that offers a balance between fuel efficiency and the duration of power supply you need.
PortabilityPortability is determined by the generator's size, weight, and design features like wheels and handles. If you need to move the generator frequently, such as for outdoor events or job sites, a more portable model is essential. For stationary use, such as home backup power, portability may be less of a concern. Assess your mobility needs to choose the right level of portability.
Noise LevelNoise level, measured in decibels (dB), indicates how loud the generator will be during operation. Quieter generators are preferable for residential areas, camping, or events where noise can be a disturbance. Higher noise levels might be acceptable for construction sites or remote locations. Consider where and how you will use the generator to determine the acceptable noise level for your situation.
Starting MechanismGenerators can have different starting mechanisms, such as manual recoil start, electric start, or remote start. Manual recoil start requires pulling a cord, which can be physically demanding. Electric start is more convenient, requiring just the push of a button. Remote start allows you to start the generator from a distance, adding an extra layer of convenience. Choose a starting mechanism that matches your preference for ease of use.
Outlets and ConnectivityThe number and types of outlets on a generator determine what devices you can connect. Common outlets include standard household outlets, 30-amp or 50-amp RV outlets, and USB ports. Ensure the generator has enough outlets and the right types to meet your power needs. If you plan to connect sensitive electronics, look for models with built-in surge protection or inverter technology for cleaner power.

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