10 Best Dual Fuel Generator 2025 in the United States

The Westinghouse 11000 Peak Watt Dual Fuel Portable Inverter Generator is a robust and versatile power solution, ideal for both home backup and outdoor activities. It delivers substantial power with 9000 running watts on gasoline and 8100 running watts on propane, making it suitable for heavy-duty usage. The generator can run up to 17 hours on a full 9.8-gallon tank, providing long-lasting performance, which is excellent for prolonged power outages or extended outdoor events.

One of its standout features is the remote electric start, which includes a key fob for added convenience, along with push button and recoil start options. This makes starting the generator hassle-free compared to manual start models. It includes a variety of outlets, including standard household outlets and transfer switch ready outlets, enhancing its connectivity options. The CO sensor and automatic low oil shutdown add layers of safety, making it a reliable choice for users concerned about operational safety.

Weighing 187.4 pounds, it is relatively heavy, which might affect portability despite the portable tag. However, its wheels and handle seem to compensate for this to some extent. The built-in LED data center is a useful feature, providing real-time information on fuel level, power output, and runtime, helping users manage their power usage effectively. The generator is EPA compliant and backed by a 3-year limited warranty, which adds to its reliability. While the high power output and numerous features make it a strong contender in its category, the weight could be considered a drawback for some users. Nonetheless, it stands out as a powerful, feature-rich option for those needing a reliable dual-fuel generator.

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.

The WEN DF450i is a versatile dual-fuel generator that runs on both gasoline and propane, offering up to 4500 surge watts and 3500 running watts on gas, and slightly less on propane. A handy feature is its Auto Fuel Selection Technology, which automatically switches to gasoline when propane runs low, helping it run longer without interruption. It has a modest 2.2-gallon gasoline tank, which provides reasonable runtime, with actual hours depending on load and fuel type.

Weighing about 100 pounds, it is somewhat heavy but comes with onboard wheels and a handle, making it manageable for camping or RV setups rather than frequent moves or backpacking. Noise-wise, it operates quietly at 58 decibels at a quarter load, so it won’t disturb outdoor relaxation or sensitive environments. The electronic ignition system ensures reliable and easy starts compared to older pull-start models.

Equipped with multiple outlets, including two standard 120V plugs, a dedicated RV plug, a 12V DC outlet, and a USB port, it supports a variety of devices—from household appliances to charging electronics safely thanks to its clean inverter power. The fuel shut-off feature facilitates easier maintenance by allowing safe fuel draining. Given its power and features, this generator is well-suited for campers and RV users who want flexible fuel options, quiet operation, and sufficient outlets for modern electronics.