10 Best Natural Gas Home Generators 2025 in the United States

The Generac 7225 14kW Air Cooled Guardian Series Home Standby Generator is a solid choice for those looking for reliable, whole-house power backup. With its 14,000 watt power output and Generac's True Power Technology, this generator ensures clean, stable power with less than 5% total harmonic distortion, which is ideal for safely running sensitive electronics. The 200-amp automatic transfer switch provides comprehensive protection by seamlessly switching power during outages, and the inclusion of Wi-Fi connectivity allows for remote monitoring and maintenance alerts, adding an extra layer of convenience and peace of mind. This feature is particularly useful for those who travel frequently or own multiple properties.

Additionally, the generator is designed with a durable aluminum enclosure and comes with a 5-year limited warranty, highlighting its long-term reliability and protection against the elements. It's also engineered and assembled in the USA, emphasizing quality craftsmanship.

However, there are some considerations to keep in mind. The generator is quite heavy at 385 pounds, which may limit portability and complicate installation, necessitating professional installation by a certified electrician. It's also worth noting that while the generator is designed to be relatively quiet, some noise is inevitable with any generator. The Generac 7225 is best suited for homeowners seeking a dependable and advanced generator with comprehensive monitoring features and robust power output, though it requires proper installation and has limitations in portability.

The Westinghouse 14500 Peak Watt Tri-Fuel Generator is a strong choice for homeowners looking for reliable backup power, especially for larger homes. It offers a high power output of up to 14,500 peak watts on gasoline, with slightly lower but still impressive wattage when running on propane or natural gas. This tri-fuel flexibility is a big plus, allowing you to choose among gasoline, propane, or natural gas depending on availability and convenience. It runs up to 19 hours on a full 9.5-gallon gasoline tank, which means it can last through a full night or day of outages, though propane runtime is shorter at around 7 hours.

The generator includes useful features like remote electric start and is ready for an automatic transfer switch, making it easier to use during emergencies. It’s also designed with safety in mind, including overload protection and a CO sensor. At 230 pounds and with a sturdy steel frame, it’s not very portable, so it’s best suited as a semi-permanent backup rather than something you’d move around frequently. Noise levels are typical for generators in this power range—not silent but manageable if placed a bit away from living areas.

Maintenance should be straightforward given the heavy-duty engine and included manuals, but it will require regular oil changes and fuel checks like any gas-powered generator. This Westinghouse model is well-suited for homeowners needing a powerful, flexible, and dependable backup power source, though its size and weight may limit portability if that’s a priority.

The Westinghouse 28000 Peak Watt Home Backup Portable Generator offers a robust power output of 28,000 peak watts and 20,000 running watts, making it a strong contender for homes needing substantial backup power. The generator is equipped with a 17-gallon fuel tank, ensuring up to 11 hours of run time at 50% load, which is quite efficient for extended outages.

The remote electric start with auto choke and the easy-access start panel simplify the operation, making it user-friendly even for those not technically inclined. The unit is transfer switch ready, boasting multiple outlet options including 30A and 50A outlets, enhancing its versatility for various home appliances and systems. Safety features such as the CO sensor, automatic low oil shutdown, and rubber-covered outlets provide added peace of mind.

Maintenance is facilitated by features like the digital readout displaying run hours, volts, and frequency. Potential users should be aware of the residual oil and fuel odor from factory testing. This generator would be particularly beneficial for homeowners needing reliable, high-power backup during outages.