10 Best Gen Generators 2025 in the United States

The GENMAX Portable Generator (GM5500i) is a versatile option for those needing backup power for home use or camping. It provides a robust power output with 5000 running watts and 5500 peak watts, which is sufficient for running high voltage appliances and heavy-duty tools. This generator runs on gas and has a 3.9-gallon fuel tank, offering up to 10 hours of run time, making it reliable for extended use during outages or outdoor trips.

It features both manual and electric start options, simplifying the startup process and adding convenience. The generator is EPA compliant and includes an Eco-Mode for fuel efficiency and reduced emissions, alongside a CO Detect shutdown sensor for safety against carbon monoxide poisoning. One of the standout features is its low noise level, operating at only 60 decibels, which is quieter than many other generators and beneficial for residential areas and campgrounds.

However, at 127.8 pounds, it is quite heavy, though the telescoping handle helps with mobility. The generator includes multiple outlets, including a TT-30R RV outlet, making it suitable for various applications. Despite its weight, the GENMAX GM5500i is an excellent choice for those seeking a powerful and quiet generator with decent fuel efficiency and safety features.

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 XP12000HX is a versatile 12,000-watt generator that can power your entire home during outages. It runs on both gasoline and propane, offering flexibility and fuel efficiency. The 457cc OHV engine with all copper windings ensures durability. With a variety of outlets, including a transfer switch-ready 50 amp outlet, it suits both residential and commercial needs.

The push-button electric start and front-facing interface make it user-friendly. However, at 222 pounds, it's quite heavy, though the included wheel and handle kit aid mobility. Additionally, it features CO Alert for safety. The DuroMax XP12000HX is ideal for those needing reliable, robust backup power for homes or RVs.

Its dual-fuel capability and comprehensive outlet options add to its appeal, though its weight could be a drawback.