10 Best Dual Fuel Generator 2025 in the United States

The DuroMax XP12000HX is a strong choice if you need a powerful dual-fuel generator capable of running an entire home or a commercial space during outages. With 12,000 starting watts and 9,500 running watts, it delivers plenty of power for multiple appliances and heavy equipment. Its ability to switch between gasoline and propane adds flexibility and convenience, as propane burns cleaner and has a longer shelf life. The 8.3-gallon gas tank offers a decent runtime, though exact hours depend on the load and fuel type.

This generator weighs 222 pounds, which is on the heavier side but includes a wheel and handle kit to help move it around. A major convenience is the electric push-button start, eliminating the hassle of pull cords. In terms of connections, it offers a variety of outlets including household 120V sockets, a 30AMP twist-lock, and a 50AMP outlet ready for transfer switches—useful for whole-home power setups. It also features copper windings for durability and a built-in CO Alert for safety.

Noise level specifics aren’t detailed but large generators like this are typically loud, so consider placement accordingly. While it's bulky and somewhat heavy, the foldable handles and wheels ease transport. This model suits homeowners who want reliable backup power, RV users, or small commercial operators needing heavy-duty performance with flexible fuel options.

The Westinghouse 14500 Peak Watt Dual Fuel Generator is a strong choice for homeowners needing a reliable backup power source, especially for larger homes or extended outages. It delivers a powerful 14,500 peak watts on gasoline and 13,500 on propane, which is enough to run multiple appliances or essential home systems simultaneously. The large 9.5-gallon gas tank allows it to run up to 19 hours on gasoline, which is excellent for longer use, although propane runtime is shorter at around 7 hours with a standard 20-pound tank. This generator offers fuel flexibility, allowing you to switch between gas and propane based on availability or preference.

For starting, it includes a convenient electric start with remote key fob, making it easy to operate without manual effort. It also features automatic voltage regulation and safety components like a CO sensor and overload protection, which help keep your devices safe and the generator running smoothly. On the downside, it weighs 230 pounds, so it's not very portable; you’d likely need wheels or assistance to move it around. Larger generators like this are usually louder, so it might not be ideal for quiet neighborhoods.

It offers two power outlets at 240 volts, suitable for home use but might require additional connections for more devices. If you want a durable, high-capacity generator that can run on two types of fuel and start easily, this Westinghouse model is a solid pick, though it’s better suited for stationary use due to its weight.

The Westinghouse 18000 Peak Watt Dual Fuel Generator is a powerful home backup solution that runs on either gasoline or propane, giving you flexibility during outages. It delivers 14,500 running watts on gas and slightly less on propane, which is enough to power most household essentials and some heavy-duty tools. With a large 10.5-gallon fuel tank, it can run continuously for up to 11 hours on gasoline, which is helpful for extended use without frequent refueling. This generator includes a convenient electric start with a remote key fob, making it easy to get going from a distance.

It weighs 405 pounds, so while it has wheels and handles, it’s quite heavy and might not be very easy to move around frequently. One standout safety feature is the built-in carbon monoxide sensor that automatically shuts down the generator if dangerous fumes build up, adding peace of mind. The generator offers a good variety of outlets including standard household plugs, RV connections, and USB ports, making it versatile for many devices and appliances. It also has features like automatic voltage regulation and low total harmonic distortion, which help protect sensitive electronics like phones and computers.

Due to its size and weight, this model may not be ideal for those needing a more portable option. Also, while it’s transfer switch ready, setup for whole-home backup might require professional installation. If you want a robust, dual-fuel generator with remote start and safety features primarily for home backup or heavy-duty use, this model represents a strong candidate.