10 Best Portable Whole House Generator 2025 in the United States

The Generac 7705 GP15500EFI is a robust portable generator that shines in its power output and safety features, making it a solid choice for both emergency backup and job site applications. With a powerful 15,500-watt output and an impressive starting wattage of 19,300 watts, it can easily handle most household appliances, tools, and other power needs during outages or projects. Its electronic fuel injection engine enhances performance efficiency, ensuring you get the most out of your fuel.

A standout feature is the integrated COsense technology, which actively monitors carbon monoxide levels, providing an added layer of safety during operation. This is especially crucial in residential settings where carbon monoxide can pose a serious risk. The generator also offers a commendable runtime of up to 11 hours, depending on the load, thanks to its 5-gallon fuel tank.

Portability is another strength, as the unit is designed with durable, never-flat wheels that make transportation easier. However, its weight of 450 pounds can present challenges for some users when moving it around, especially in uneven terrains. The noise level, while not specified, tends to be higher in powerful generators like this one, which might be a consideration in quieter neighborhoods. Additionally, the generator's bulkiness may limit its use in smaller spaces.

The Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator is a solid choice for those needing a reliable power source for their entire home. It offers impressive power output with 9500 running watts and 12500 peak watts on gasoline, and 8500 running watts and 11200 peak watts on propane, making it versatile for different fuel preferences. The dual-fuel capability is a significant advantage, providing flexibility during fuel shortages.

The generator includes a remote start with a key fob, which adds convenience, along with electric and recoil start options. Its 6.6-gallon fuel tank allows for up to 12 hours of run time, which is quite adequate for most residential needs. This model is designed with safety in mind, featuring GFCI outlets with rubber covers, automatic low oil shutdown, and a durable cast iron sleeve engine. The inclusion of a transfer switch-ready outlet simplifies connection to your home’s power system.

However, at 210 pounds, it is quite heavy, which could affect portability despite having wheels. The generator comes with useful accessories and a three-year limited warranty, indicating strong support from the manufacturer. This makes it suitable for homeowners looking for a comprehensive backup solution, though its weight might require consideration.

The DuroMax XP13000E is a powerful portable generator designed to provide whole-house backup power. With a robust 500cc OHV engine and a 13,000-watt output, it can handle demanding loads such as lights, refrigerators, home air conditioners, and power tools, making it suitable for both residential and commercial use. This generator runs on gasoline, which offers a reliable fuel source but requires proper storage and handling for safety.

The electric start feature makes it convenient to use, and the unit is transfer switch ready, simplifying its integration into home power systems during an outage. It includes a wide selection of outlets for various applications, enhancing its versatility. Safety features such as low oil shutdown and a CO sensor add to its reliability.

However, the generator is quite heavy at 236 pounds, which may limit its portability despite the included wheel and handle kit. Additionally, its noise level might be higher compared to some smaller units, which could be a consideration for those in noise-sensitive environments. The DuroMax XP13000E is EPA and CARB approved, ensuring it meets environmental and safety regulations across all U.S. states. Users have rated it highly for its performance and reliability, making it a strong option for those needing substantial and dependable backup power.