10 Best Diesel Generators 2025 in the United States

The Westinghouse Outdoor Power Equipment 14500 Peak Watt Tri-Fuel Home Backup Portable Generator is a versatile option for homeowners needing reliable backup power. With a peak output of 14,500 watts and a running output of 11,500 watts on gasoline, it provides ample power for larger homes or for outdoor activities. The flexibility to use gasoline, propane, or natural gas makes it a tri-fuel generator, allowing users to choose the most convenient or economical fuel option. Its impressive run time of up to 19 hours on a full tank makes it suitable for extended outages, which is a significant advantage for those in areas prone to power interruptions.

Portability is another strong point, though weighing in at 230 pounds, it might require some effort to transport. The built-in electric start feature is user-friendly, enhancing convenience, especially during emergencies. The generator also includes an automatic transfer switch (ATS) readiness, which allows for seamless power transfer, making it easier to use during outages.

On the downside, the noise level during operation might be a concern for some users, particularly in quiet neighborhoods. While it’s fairly quiet for a generator, it's still advisable to check local noise ordinances if you plan to use it frequently. Maintenance is manageable, given the durable 550cc engine; however, like all generators, it will require regular upkeep to ensure longevity.

The Generac Guardian 22kW Home Standby Generator is a powerful option for homeowners seeking reliable backup power during outages. It delivers a strong 22,000 watts of clean and stable electricity, enough to cover an entire house comfortably. Its engine is designed to be fuel-efficient and quieter than many comparable generators, which helps reduce noise disturbance during use. The unit runs on natural gas or propane, which are convenient and readily available fuel sources for many users.

One standout feature is the included 200 Amp automatic transfer switch, which seamlessly switches your home’s power to the generator when the main power goes out—meaning you won’t have to lift a finger during an outage. The transfer switch is also built to last with a five-year warranty and is housed in a weatherproof aluminum enclosure for outdoor installation. The generator comes Wi-Fi enabled, allowing you to monitor its status and maintenance alerts remotely via an app, providing extra convenience and peace of mind.

In terms of size and weight, it’s a heavier and less portable unit (466 pounds), so it’s best suited for permanent home installation rather than moving around. Maintenance needs are relatively low thanks to the durable G-Force engine, but professional installation and occasional servicing by a licensed electrician are recommended to keep it running smoothly. Though this generator is on the pricier side and installation can be involved, its combination of power, reliability, and smart features makes it an excellent choice for homeowners wanting a dependable whole-house backup power solution.

The DuroMax XP13000EH is a powerful dual fuel portable generator that stands out for its impressive 13,000 watts of starting power, making it suitable for home backup during outages or powering tools on job sites. Its versatility in fuel options—running on either gasoline or propane—is a significant advantage, allowing users to choose based on availability and cost. The generator features a user-friendly electric start and a quick fuel switch, enhancing ease of use. With a robust all-metal construction, it's built for durability and can handle rough weather conditions, which is a plus for those needing reliable outdoor power.

On the portability front, the generator comes with no-flat tires and a foldable handle, making it relatively easy to transport. However, at 234 pounds, it may still be a bit heavy for some users to move around without assistance. The generator offers a solid run time and demonstrates a good balance of performance and satisfaction.

Despite its strengths, there are some drawbacks to consider. The noise level is typical for generators in this power range, which might be a concern for users in quiet neighborhoods. Additionally, while the DuroMax brand is known for its reliability, maintenance is essential for long-term performance, and users should be prepared for periodic upkeep. Lastly, while it comes with a variety of outlets, the absence of an automatic transfer switch (ATS) can be a drawback for those looking for seamless integration with home electrical systems.

The DuroMax XP13000EH is a strong contender for anyone needing portable power for residential use, RV trips, or job sites, especially if you value flexibility in fuel options and durability.