10 Best Natural Gas Generators 2025 in the United States

The Westinghouse Outdoor Power Equipment 14500 Peak Watt Tri-Fuel Generator is a versatile and powerful choice for household backup or portable power needs. It offers impressive power output, with 14,500 peak watts and 11,500 running watts on gasoline, 13,500 peak watts and 10,500 running watts on propane, and 12,000 peak watts and 9,500 running watts on natural gas. This makes it suitable for larger homes requiring substantial power during outages. Its tri-fuel capability (gasoline, propane, and natural gas) adds flexibility in fuel options, which is a definite strength.

The generator runs up to 19 hours on a full gasoline tank, providing extended power without frequent refueling. However, run time on a 20 lb propane tank drops significantly to about 7 hours. The heavy-duty 550cc 4-stroke OHV engine ensures durability and reliability, backed by a 3-year limited warranty and nationwide customer service. The remote electric start is convenient, especially during emergencies, and the generator is transfer switch ready, making installation easier for home use. Portability is somewhat compromised by its weight (230 pounds), but it's manageable for a heavy-duty generator.

Maintenance is straightforward with features like an hour meter and automatic voltage regulation. The generator also includes useful safety features like overload protection and a CO sensor for added safety. Despite being on the heavier side and having a shorter run time on propane, its high power output, fuel versatility, and robust construction make it an excellent choice for those needing reliable backup power for larger homes.

The Generac 7043 is a powerful standby generator designed for residential use, delivering a robust 22kW of clean, reliable power with minimal harmonic distortion. This makes it suitable for homeowners who want to ensure seamless electricity supply during outages, covering their entire house with the included 200-amp transfer switch. The generator's Wi-Fi connectivity allows for remote monitoring, letting users track performance and receive maintenance alerts straight from their smartphones—a fantastic feature for peace of mind when away from home.

In terms of noise level, it’s important to note that most standby generators can produce noticeable sound when operating. Portability might be a concern as this generator weighs 466 pounds, which indicates it’s intended as a stationary unit rather than one that can be easily moved.

The engine is built for performance, ensuring less frequent maintenance needs due to its durable design. The included 5-year warranty adds a layer of confidence for users regarding the longevity of the product. Installation will require a certified electrician, which could be an added cost for some homeowners. The price point of the Generac 7043 may be higher compared to smaller, less powerful generators, making it more of an investment. Additionally, potential buyers should consider their specific power needs, as those living in smaller homes or those who do not require whole-house coverage may find it excessive.

The DuroMax XP13000HXT is a powerful and versatile natural gas generator that stands out with its 13,000 watts of power, making it suitable for both residential and commercial use during power outages. One of its key strengths is the tri-fuel capability, allowing you to use gasoline, propane, or natural gas, providing flexibility and convenience depending on availability and cost of fuel. The powerful 500cc OHV engine supports this high wattage, ensuring reliable performance. It includes a CO Alert feature that adds a layer of safety by protecting against harmful fumes, which is crucial for indoor use or in enclosed spaces.

The generator is relatively easy to start with both push-button and remote start options which add to its user-friendly nature. With a noise level of 74 dB, it is not the quietest option on the market, but it is manageable for its power output class. The run time of 8 hours is decent, though might require frequent refueling during longer outages. At 240 pounds, portability could be a concern despite being labeled as portable, but the included wheel and handle kit help move it around. Maintenance requirements are typical for a generator of this power class, with regular checks needed to ensure long-term reliability. The digital display aids in monitoring the generator's status, making maintenance easier.

The DuroMax XP13000HXT is a robust and versatile option for those needing a reliable power source, though its weight and noise level might be a consideration for some users.