10 Best Quiet Diesel Generators 2025 in the United States

The WEN Quiet and Lightweight 3600-Watt Dual Fuel RV-Ready Portable Inverter Generator offers a versatile and efficient solution for residential and camping needs. Its dual-fuel capability allows it to run on both gasoline and propane, providing flexibility and convenience. This generator boasts a notable power output with 3600 surge watts and 2900 rated watts on gasoline, and slightly lower on propane. It excels in noise reduction, operating at a level comparable to a normal conversation, making it ideal for use in quiet environments as noted by the US Department of Health and Human Services.

Fuel efficiency is supported by the fuel shut-off feature, which helps limit maintenance and ensures a longer lifespan for the generator. The tank capacity is 1.5 gallons, offering a moderate runtime of approximately 5 hours, which might be a limitation for longer power needs without refueling. Portability is enhanced by its lightweight design at 49 pounds and compact dimensions, making it easy to transport and handle in various settings. Durability is backed by a three-year limited warranty and the inclusion of a CO shutdown sensor adds an extra layer of safety by automatically turning off the generator if dangerous levels of carbon monoxide are detected.

Starting the generator is straightforward with the spark ignition system. The generator might fall short for those requiring continuous high power for extended periods due to its moderate tank capacity and runtime. This generator suits users looking for a quiet, portable, and versatile power source for residential or camping use.

The WEN 3600-Watt Portable Inverter Generator is designed to be a reliable and quiet power source, making it an excellent choice for RV enthusiasts and anyone needing portable power. The generator outputs up to 3600 surge watts and 2900 rated watts, sufficient for running several appliances and electronics simultaneously. Its clean power output protects sensitive devices like smartphones and laptops, which is a significant benefit for tech users on the go.

Weighing only 46 pounds, it's lightweight and easy to transport, thanks to its compact and fully enclosed design. The fuel shutoff feature helps prolong the engine's life by using up remaining fuel before shutting down, an added advantage for long-term maintenance. However, its 1.6-gallon tank offers a limited runtime of around 5 hours, which might not be sufficient for extended use without refueling.

Noise levels are impressively low, making it suitable for environments where quiet operation is critical. The generator also comes with multiple outlets, including USB ports and a dedicated RV receptacle, enhancing its versatility. The three-year warranty provides peace of mind, ensuring support and reliability. Ideal for those who need portable, quiet, and efficient power, this generator stands out for its balance of features and user-friendly design.

The Honda 664240 EU2200i is a highly regarded portable inverter generator that's tailored for users looking for a quiet, reliable power source for various activities like camping, RVing, or job sites. One of its standout features is its noise level, operating between 48 to 57 dBA, which is quieter than a typical conversation. This makes it an excellent choice for environments where noise is a concern, ensuring you won't disturb your neighbors or fellow campers.

In terms of power output, it provides a running wattage of 1800 watts and can peak at 2200 watts, making it capable of powering a range of household appliances and devices. If you need more power, you can connect another EU2200i using a parallel kit to double your output. Fuel efficiency is another strength, thanks to Honda's Eco-Throttle System, which allows for a runtime of 4 to 9.6 hours on a single tank, depending on the load. This feature ensures you won't need to refuel frequently, making it suitable for long-term use. The tank capacity of 0.95 gallons is reasonable, though some users might prefer a larger tank for extended runs.

The generator is also fairly portable, weighing 46.5 pounds and featuring dimensions that make it easy to transport. However, its weight may be a consideration for those looking for ultra-lightweight options. While the generator is praised for its quiet operation and reliability, it may not deliver enough power for heavy-duty tasks or multiple high-wattage appliances simultaneously without the parallel option. Additionally, being gasoline-powered, users need to consider fuel availability and the environmental implications of using gasoline.

The Honda EU2200i is a fantastic option for those prioritizing quiet operation, portability, and efficiency, but it may not be suitable for larger power needs or those concerned about fuel type.