10 Best Quiet Diesel Generators 2025 in the United States

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.

The DuroMax XP16000iH is a powerful dual fuel generator offering up to 16,000 peak watts and 13,000 running watts, making it suitable for whole-home backup, job sites, or RV camping. It runs on both gasoline and propane, giving you more fuel options and potentially better fuel efficiency depending on what you use. This model features inverter technology, which means it provides clean and stable power safe for sensitive electronics like computers and TVs. Its 10.5-gallon tank supports longer run times, which is helpful during extended outages or remote work.

Starting the unit is easy with a remote electric start, and the built-in battery tender keeps the battery ready to go. It also has a low oil shutoff feature to protect the engine from damage. The steel build suggests good durability, but at 368 pounds, it’s quite heavy, so while it is labeled portable, moving it around will require effort or equipment like a dolly. The digital control center offers useful information like voltage output and run hours, helping you monitor the generator easily.

This is not a diesel generator, which some might prefer for fuel availability or efficiency. Despite its size and power, it may not be the best fit if you need something very lightweight or ultra-quiet for small-scale use. The DuroMax XP16000iH serves as a robust, flexible choice if you want a high-powered, dual fuel portable generator with modern features and are okay managing its weight.