10 Best Gen Generators 2025 in the United States

The Generac Guardian 14kW Home Standby Generator is a robust and reliable solution for whole-house power backup. It delivers 14,000 watts of power, making it capable of handling substantial household energy needs. This generator runs on natural gas or LP gas, which offers flexibility depending on what is available to you. Its durable aluminum enclosure ensures it can withstand outdoor conditions, and it comes with a 5-year limited warranty, giving you long-term peace of mind about your investment. Additionally, the G-Force Engine is designed for reliability and reduced maintenance, which can be a huge plus for homeowners who want a set-it-and-forget-it solution.

The inclusion of a 100 Amp transfer switch simplifies the integration with your home’s electrical system, providing seamless backup during outages. One notable feature is the Mobile Link Wi-Fi connectivity, allowing you to monitor the generator's performance remotely, which can be very convenient when you’re away from home. The generator is quite large and heavy, weighing 385 pounds, which might pose challenges during installation, so professional installation by a certified electrician is recommended. It operates relatively quietly compared to some other standby generators, thanks to the low-maintenance engines.

This generator is primarily suited for residential use and might be overkill for smaller homes or less demanding power needs. If you’re looking for a reliable, powerful, and easy-to-use standby generator for whole-house protection, the Generac Guardian 14kW stands out with its impressive features and robust construction.

The DuroMax XP13000EH is a powerful generator designed to keep your entire home running during power outages. With a starting wattage of 13,000 watts and running wattage of 10,500 watts, it is capable of handling substantial electrical loads. One of its key strengths is its dual fuel capability, allowing you to switch between gasoline and propane easily, which offers flexibility in fuel choice. The electric start feature makes it convenient to use, and the variety of outlets, including one that's transfer switch-ready, enhances its versatility for home, RV, or jobsite use.

Constructed with a heavy-duty all-metal frame, this generator is built for durability and can withstand severe weather and heavy use. Portability is facilitated by no-flat tires and a foldable handle, although at 234 pounds, it is quite heavy and may require effort to move. Additionally, it includes important safety features like a CO sensor and low oil shutdown. The generator comes with useful accessories such as an oil funnel, spark plug wrench, and tool set. This DuroMax model is well-suited for those needing a reliable, high-powered portable generator for diverse applications.

The GENMAX Portable Generator GM9000iED is a strong choice if you need a reliable power source for home backup, job sites, or outdoor activities like camping. Its 9000 peak watts and 7600 running watts provide ample power for most household or work needs. A key strength is its dual fuel capability, running on either gas or propane, which offers flexibility depending on your fuel availability and preferences.

Portability is fairly well addressed with sturdy wheels and a steel handle, though at 280 pounds, it's on the heavier side, so it’s more portable than lightweight but still manageable with some effort. The electric start and remote key fob add convenience, making it easier to operate than pull-start models. One of the standout features is the quiet operation—at 62 decibels under moderate load, it’s quieter than many generators, which is great for neighborhood or camping use. The low idle mode helps extend run time and save fuel, and the 6.9-gallon tank supports long usage periods.

Safety-wise, the built-in carbon monoxide detector is a valuable addition that automatically shuts off the generator if unsafe gas levels are detected. The unit also supports parallel connection, allowing you to link two generators for double power, though the parallel kit is sold separately. The generator’s weight can be a challenge if you need to move it around frequently. Also, while it has 5 outlets and supports both 120V and 240V outputs, users looking for more extensive connectivity options might find it somewhat limited.