Honda, Yamaha and Briggs and Stratton manufacture inverter generators that feature quieter operation than conventional generators. Inverter generators rely on specialized alternator technology to allow the engine to run at lower revolutions per minute, thereby reducing sound. Increased fuel efficiency is an added benefit.
The Honda EU2000 inverter generator produces 53 to 59 decibels. It provides 1600 watts of power to a 30-amp outlet to power devices in a home or recreational vehicle. Connecting two of these units in parallel provides users with two times the power output up to 4000 watts. This unit is capable of operating for eight hours on 1 gallon of fuel.
The Yamaha EF2000iS is also a 1600-watt inverter generator with a noise rating of 51 to 61 decibels. Like the Honda, this unit can be used in tandem with an identical Yamaha model for a maximum of 3600 watts of power. In addition to two 120-volt alternating current plugs, this unit has a 12-volt direct current plug for charging batteries. For ease of starting, this generator features an auto-decompression system.
The Briggs and Stratton P300 inverter generator is rated at 58 decibels under a 25 percent power load. This model produces 2600 watts and can be used in parallel with a second unit. It features a 12-volt DC charging outlet and a USB charging port.