10 Best 12000 Watt Generator 2026 in the United States

The DuroMax XP15000HXT is a robust 15,000-watt generator designed to power an entire home or jobsite, making it a strong choice for those needing a reliable backup during outages or heavy power demands. It runs on three types of fuel—gasoline, propane, or natural gas—offering great flexibility depending on what you have available. With a large 13.2-gallon gas tank and the ability to switch fuel types quickly from the front panel, it provides good run time and convenience.

Starting the generator is easy with its push-button and remote start options, eliminating the hassle of manual pulls. The generator includes a well-equipped power panel with multiple outlets, including 120V and 240V options, and a 50 amp output ready for transfer switches, which is perfect for home backup setups. It features advanced safety with a CO Alert system that automatically shuts the unit down if carbon monoxide is detected, adding peace of mind for indoor use near living spaces. The digital display shows important info like fuel level and power load, helping you monitor performance at a glance.

At 362 pounds, it’s on the heavier side but the included wheel and handle kit help with moving it around, so it’s portable enough for occasional relocation but not something you'd want to move daily. This generator suits anyone needing a heavy-duty, versatile, and user-friendly power source that can handle large loads with multiple fuel options. Its size and weight mean it’s best suited for stationary or semi-permanent setups rather than frequent transport.

The Westinghouse 12500 Peak Watt Dual Fuel Generator is a strong choice for reliable power backup at home, especially during outages. It runs on both gasoline and propane, providing flexibility depending on fuel availability. With 9,500 running watts on gas and 8,500 on propane, it can handle most household essentials like refrigerators, lights, and small appliances. Its 6.6-gallon tank supports up to 12 hours of runtime, which is convenient for extended use.

Starting the generator is easy with a remote electric start and a manual recoil backup, making it user-friendly. The generator has multiple outlets, including standard household plugs, a transfer switch ready outlet, and an RV outlet, allowing safe connection of various devices. Safety features such as automatic low oil shutdown and a carbon monoxide sensor enhance user peace of mind. The noise level is around 74 decibels, which is typical for this power class—noticeable but not overly loud.

On the downside, the unit is quite heavy at over 225 pounds, making it less portable for frequent moving without assistance. While it includes a handle for maneuvering, it is better suited for stationary or occasional relocation rather than daily transport. Some users may find the size and weight challenging if they desire a lightweight generator. This generator serves well for homeowners seeking a dependable, versatile backup power source with easy start options and solid safety features, though moving it requires some effort due to its weight.

The Generac GP9500E TF is a strong choice for anyone needing a reliable 12,000-watt class portable generator, whether for home backup, job sites, or RV use. Its starting wattage of 12,500 and running wattage of 9,500 watts offer ample power to run multiple appliances or tools during outages or work. One standout feature is its tri-fuel capability, allowing it to run on gasoline, propane, or natural gas, which adds flexibility if fuel availability varies. It also includes a convenient electric start, so you won’t have to struggle with a pull cord, making it simple to use in emergencies or cold weather.

With a 7.5-gallon fuel tank, it provides a solid runtime of up to about 10.5 hours at half load on gasoline, helping you stay powered longer without refueling. The generator is built tough with a steel frame, covered outlets for weather protection, and heavy-duty wheels that make moving the 227-pound unit easier, though it may still be a bit heavy for some. It includes safety features like CO sensors and low oil shutdown, which add peace of mind.

On the downside, while described as quiet, it’s a fairly powerful generator, so some noise is expected, which might be a consideration if you need something very quiet. It has three power outlets, which should cover basic needs but may limit plugging in many devices simultaneously. The size and weight mean it’s portable but not exactly lightweight, so plan accordingly. This Generac offers a solid mix of power, fuel flexibility, and user-friendly features ideal for those who want a dependable, versatile generator for backup or work use. It’s especially well suited if you value easy starting and the option to switch fuels, with durability built for rough conditions.