10 Best Natural Gas Generators 2025 in the United States

The Generac 7172 10kW Air Cooled Guardian Series is designed primarily for residential use, offering reliable power during outages. Its standout feature is the 10,000 watt output, which is ideal for keeping essential appliances running smoothly. The generator's True Power Technology ensures that the power delivered is clean and stable, minimizing potential damage to sensitive electronics, a crucial aspect for homeowners. The inclusion of a 100-amp transfer switch means it can seamlessly power multiple circuits in your home, which enhances its practicality during extended outages.

One of the most appealing aspects is the Mobile Link Wi-Fi connectivity, allowing users to monitor performance remotely. This feature is particularly useful for those who travel often or want peace of mind knowing their home is protected. Additionally, the 5-Year Limited Warranty provides reassurance regarding its longevity and reliability.

On the downside, the generator weighs 338 pounds, which may pose challenges in terms of portability and installation. While Generac recommends installation by a certified electrician, this could add to overall costs. The noise level, although described as 'super quiet,' can still be a concern for those who live in close proximity to neighbors. Potential users should also consider the fuel consumption, as natural gas or LP gas usage can vary based on demand and price fluctuations.

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 Westinghouse 28000 Peak Watt Tri-Fuel Generator is a powerful and versatile option for homeowners needing a strong backup power source. It delivers high wattage—up to 28,000 peak watts on gasoline and 16,000 running watts on natural gas—making it suitable for larger homes or heavy-duty power needs. One of its main strengths is its tri-fuel capability, meaning it runs on gasoline, propane, or natural gas, giving you flexibility depending on fuel availability and price. It can run up to 13 hours on a full gasoline tank at 25% load, which is decent for extended outages. The generator features a remote electric start and a digital display that shows runtime and voltage, making it easy to operate and monitor. Safety and convenience are also priorities, with automatic low-oil shutdown, overload protection, and a CO sensor.

It includes multiple outlets and is transfer switch ready, so it can connect directly to your home for seamless power. Considering portability, it’s heavy at 557 pounds but comes with large never-flat wheels and foldable handles to help move it around despite the weight. Noise levels are not explicitly stated, but due to its size and power, expect it to be somewhat loud, typical for generators of this scale. Maintenance should be manageable with features like automatic idle control, but regular upkeep is still necessary given its powerful engine.

This generator suits homeowners who need reliable, whole-home backup power, especially those who want fuel flexibility and the ability to connect directly to their home’s electrical system. It may be less ideal if you need something lightweight or very quiet.