When the power goes out, having a reliable gas-powered generator is more than just convenient. In fact, it becomes an essential lifeline for your home, business, or recreational activities.
Today, extreme weather events are increasingly common. At the same time, power grids are under more strain than ever. As a result, investing in a quality generator provides immediate peace of mind and long-term security. However, navigating the wide selection of gas generators on Amazon can feel overwhelming. After all, numerous models offer different power outputs, features, and price points.
For this reason, we’ve carefully researched gas-powered generators available on Amazon today. Our selection focuses specifically on industry-leading brands: DuroMax, Honda, and Generac. Whether you need a compact unit for camping, a mid-sized generator for RV trips, or a powerful whole-home backup solution, we’ve got you covered. Our comprehensive guide clearly breaks down the unique benefits, specifications, and real-world performance of each model. Ultimately, we’re here to help you choose the perfect generator for your specific needs and budget.
#1 – Honda 664240 EU2200i 2200 Watt Portable Inverter Generator

- Quietest Operation: At just 48-57 dB(A), it’s significantly quieter than other generators, making it ideal for camping, residential areas, and noise-sensitive environments.
- Most Reliable Starting: The only generator that consistently starts on the first pull of the cord, eliminating the frustration of multiple start attempts common with other generators.
- Industry-Leading Engine Quality: Features Honda’s renowned GXR120 engine, widely recognized as the gold standard in the industry, offering unmatched reliability and longevity compared to other brands.
#2 – DuroMax XP5500EH 5,500-Watt Dual Fuel Portable Generator

- Dual Fuel Capability: This generator operates on both gasoline and propane, providing flexibility and convenience based on fuel availability and user preference.
- Ample Power Output: With 5,500 starting watts and 4,500 running watts, it can handle heavy loads, including lights, refrigerators, home air conditioners, and high-amperage power tools.
- Electric Start Feature: The generator includes an electric start, simplifying the startup process and enhancing user convenience.
#3 – Westinghouse 13500 Peak Watt Tri-Fuel Home Backup Portable Generator

- Tri-Fuel Flexibility: Easily switch between gasoline, propane, and natural gas with the user-friendly control panel dial.
- 50A Transfer Switch Compatibility: Includes an L14-30R 120/240V 50A outlet for direct connection to your home’s essential power circuits.
- Powerful 500cc Engine: Equipped with a heavy-duty 500cc 4-Stroke OHV Westinghouse engine featuring a robust cast iron sleeve for enhanced durability.
- Easy Electric Start: Quickly connect the battery and conveniently start the generator using the provided key fob or push-button ignition.
#4 – Generac 8,000-Watt Gas-Powered Portable Generator

- Powerful Portable Performance: Generac’s PowerRush Advanced Technology delivers 40% more starting capacity, effectively handling heavy electrical loads—perfect for emergency power, recreation, and home use.
- Easy Electric Start: Forget manual cranking; the convenient electric start feature, powered by the included battery, ensures quick and reliable operation during outages.
- Extended Runtime: Features a long-lasting OHV engine and a large-capacity steel fuel tank, providing up to 11 hours of runtime at 50% load for continuous, dependable power.
#5 – Generac 18,000-Watt Gas-Powered Portable Generator

- Powerful Generac Engine: Equipped with an 816cc EFI Engine, delivering maximum power, peak performance, and optimal efficiency for reliable power needs.
- COsense Technology Protection: Integrated COsense Technology provides advanced protection against hazardous carbon monoxide, ensuring safe operation.
- TruePower Technology: Produces clean power with less than 5% Total Harmonic Distortion (THD), safely powering sensitive electronics and tools, ideal for home and professional use.