10 Best Quiet Diesel Generators 2025 in the United States

The Westinghouse 11000 Peak Watt Dual Fuel Portable Inverter Generator is a solid choice for those needing a powerful and versatile generator. With a noise level kept low, it’s well-suited for quieter operation, which is a significant advantage for residential use or camping. It offers substantial power output with 9000 running watts on gasoline and 8100 running watts on propane, making it capable of handling a variety of electronic devices safely, thanks to less than 3% THD (Total Harmonic Distortion). This means your sensitive electronics will be protected from power surges.

The fuel efficiency is quite impressive, with up to 17 hours of run time on a 9.8-gallon tank, which is beneficial for long-term use without frequent refueling. The tank capacity of 9.8 gallons supports this efficiency. Portability is decent but could be better; at 187.4 pounds, it is on the heavier side, though it is equipped with wheels and a handle for easier movement. Durability is a strong point, featuring a heavy-duty 452cc engine with a cast iron sleeve and automatic low oil shutdown, plus a CO sensor to ensure safety.

The starting mechanism is user-friendly with a remote electric start, push button, and recoil options. In terms of drawbacks, the generator's weight might be a concern for some users, and although it is portable, it might require two people to move it comfortably. The price might also be higher compared to other models, but considering the features, it presents good value for money. Ideal users would be homeowners needing a reliable power backup, campers, and those with high power requirements for multiple electronics.

The Westinghouse 28000 Peak Watt Home Backup Portable Generator is a robust option for those needing significant power output. With 28,000 peak watts and 20,000 running watts, it can handle demanding loads, making it ideal for home backup during power outages. Its 999cc V-Twin OHV engine ensures durability, and the generator includes a range of safety features such as automatic low oil and carbon monoxide (CO) shutdown. The remote electric start with auto choke and push-button ease adds to its user-friendly design, ensuring quick and hassle-free operation.

Additionally, the generator offers a variety of outlets, including 120V and 240V options, making it versatile for different power needs. The 17-gallon fuel tank provides up to 11 hours of runtime at 50% load, which is quite efficient for its size and power output. However, at 599 pounds, this generator is not very portable. The reinforced steel handles and quick-release pins help, but it’s still a heavy and bulky unit.

Its noise level is not specified, but given its size and power, it may not be the quietest option available. This generator is best suited for those in need of a high-power, durable, and reliable backup power solution, but it may not be ideal for those looking for a portable or ultra-quiet generator.

The Honda EU7000IS is a versatile 7,000-watt inverter generator designed for home backup power, RVs, and outdoor events. One of its standout features is its super quiet operation, which makes it suitable for use in residential settings without causing a noise disturbance. Its fuel efficiency and a runtime of 6 hours and 30 minutes at full load are impressive, ensuring longer periods of power supply without frequent refueling. The electric start feature adds convenience, making it easy to start up without hassle.

Additionally, the Honda My Generator app and Bluetooth capability provide modern connectivity features that allow for remote monitoring and control, which is a plus for tech-savvy users. The advanced CO-MINDER carbon monoxide detection system enhances safety by preventing harmful emissions buildup, a valuable feature for home use. However, the generator's weight of 270 pounds can be a drawback for portability despite its intended use for outdoor events. Moving it around may require more effort or additional equipment for transportation.

Another point to consider is its size, with dimensions of 28”L x 28”W x 34”H, which might require ample storage space. The 3-year residential warranty is a reassuring aspect, indicating the manufacturer's confidence in the product's durability. This generator is a robust option for those needing reliable, quiet, and fuel-efficient power, especially in residential and semi-portable scenarios, but its weight and size might limit its portability.