10 Best Portable Whole House Generator 2025 in the United States

The Generac Guardian 24kW Home Standby Generator is designed to provide reliable, whole-house backup power during outages. It delivers a strong 24,000 watts of clean and stable electricity, enough to keep most homes fully powered. It runs on natural gas or liquid propane, which are convenient fuel options that can keep your home running for extended periods without refueling.

The built-in Wi-Fi connectivity allows you to monitor the generator remotely, so you can check its status and receive maintenance alerts from anywhere, adding extra peace of mind, especially if you travel frequently. The generator features an electronic ignition system, making it easy to start automatically when power goes out. Safety is addressed with the included 200 Amp transfer switch, which helps protect your home’s electrical system by safely switching power sources.

This unit is quite heavy at 455 pounds, so it’s meant to be permanently installed outside by a licensed electrician. Generac’s G-Force engines are known for running quieter than older models. The generator comes with a five-year limited warranty, reflecting its durable, high-quality American engineering. This model is ideal for homeowners looking for a dependable, automatic backup power solution that covers their entire house rather than a portable option for camping or job sites.

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 Generac 7172 10kW Air Cooled Guardian Series generator is a robust choice for those looking to protect their homes during power outages. With a solid power output of 10,000 watts, this generator is capable of handling most household needs, ensuring that essential appliances remain operational. One notable strength is its advanced True Power Technology, which promises clean power with minimal harmonic distortion—ideal for sensitive electronics. The comprehensive 100-amp transfer switch included allows for thorough coverage across your home, making it user-friendly and efficient.

Portability is somewhat limited due to its hefty weight of 338 pounds, so it’s best suited for permanent installation rather than being moved around frequently. While it does provide Wi-Fi connectivity for remote monitoring, some users may find the installation process a bit intimidating, as it requires a certified electrician for optimal setup. This can add to the cost.

Another positive aspect is the 5-year limited warranty, offering peace of mind about its long-term reliability. However, the noise level is another consideration; while it is marketed as 'super quiet,' it may still be noticeable in a residential setting, especially during overnight use. Safety features are robust, ensuring that your home is well protected, but users should be mindful of the fuel type options—natural gas or LP gas—which might influence your choice depending on availability and preference.