10 Best Propane Inverter Generators 2025 in the United States

The Westinghouse 11000 Peak Watt Dual Fuel Portable Inverter Generator is a solid choice for those seeking a dependable power solution for residential use or outdoor activities. With its impressive power output, it offers 9000 running watts on gasoline and 8100 running watts on propane, making it versatile for various needs. The ability to run for up to 17 hours on a single tank is a standout feature, ensuring you have ample power for extended periods without frequent refueling.

Portability is also a highlight, although it is slightly heavy at 187.4 pounds. The remote electric start adds convenience, allowing you to start it from a distance, which is especially useful when placed in a difficult-to-reach location. The generator's noise level is relatively low, which is a significant advantage if you're using it in a residential area or at a campsite.

On the downside, while it supports parallel capability for increased power, this feature may require additional purchasing of parallel cables. Additionally, the weight might pose a challenge for some users when transporting it. The generator is built robustly but may not be the most compact option for those with limited storage space. The included CO sensor is an essential safety feature, ensuring that you are alerted to any carbon monoxide risks. It also comes with comprehensive components to get you started right away, making it user-friendly. The Westinghouse 11000 is an excellent pick for anyone needing reliable, portable power, but consider the weight and size depending on your mobility and storage capabilities.

The Westinghouse 18000 Peak Watt Dual Fuel Generator is a solid choice for those seeking reliable backup power with the versatility of operating on both gasoline and propane. One of its standout features is the high power output, offering 14500 running watts with gasoline and 13000 running watts with propane, making it suitable for various household needs during outages. The generator also provides an impressive runtime of up to 11 hours on a full tank, which is helpful for extended use.

Portability is another strong point, although this generator weighs 352 pounds, which may require assistance for transportation. The electric and remote start options add convenience, allowing quick activation without manual effort. With multiple outlets, including USB ports and RV compatibility, it accommodates various devices and appliances, enhancing its usability.

On the downside, the noise level can be a concern, especially during extended use, as generators of this size are typically louder than smaller models. Users looking for quiet operation might find it less appealing. Additionally, while it includes essential components like a battery charger and oil, some assembly is required, which could be a bit challenging for those not familiar with generator setups. Fuel efficiency is decent, but always keep in mind that running costs can vary based on fuel prices and usage. The dual fuel capability is advantageous, providing flexibility, but switching fuels may involve additional setup.

The WEN DF452iX is a solid choice if you need a portable inverter generator that runs on either gasoline or propane. It offers a strong power output—up to 4500 watts at startup and 3500 watts running on gas, slightly less with propane—making it suitable for RVs, home backup, or outdoor activities. The runtime is respectable, around 8 hours on a full tank, and switching to propane can extend this for longer use. One of its biggest pluses is the very quiet operation, at about 58 decibels, which is pleasant for camping or neighborhood use.

It also includes safety features like a carbon monoxide shutdown sensor, which adds peace of mind when running indoors or in enclosed spaces. Portability is decent; while it weighs 100 pounds—heavier than some smaller models—it has wheels and a handle to help move it around. Fuel efficiency is improved by the dual fuel option and a fuel shut-off for easier maintenance.

This model does not have parallel capability, so you cannot connect two units together to increase power. It provides reliable, clean power for sensitive devices thanks to its inverter technology, and offers remote electric start convenience. It is on the heavier side and may lack some advanced connectivity features found in pricier models.