Well the boys at Yamaha are growing the Inverter Generator line with the new addition ....EF2000i
Lightweight / Compact Inverter generators are built with a multi-polar alternator, creating an excellent power to weight ratio. Inverters use fewer parts making them ultra compact and lightweight, so the EF2000iS can go anywhere with ease.
High-Quality Electricity Inverter technology regulates the electrical output using Pulse Width Modulation (PWM). The result is a pure sine wave as clean as or cleaner than commercial power, which allows the operation of sensitive products with built-in microcomputers.
Economy Control Economy idle control returns the engine to idle when there is no load, for improved fuel efficiency and quieter operation.
Smart Throttle Automatically varies engine speed to precisely match load, resulting in greater fuel efficiency and noise reduction.
4-Stroke OHV Air-Cooled Engine Precise valve actuation and heavy-duty design offer improved efficiency, increased reliability and quiet operation
Cast iron cylinder lining A unique "spiny" cylinder sleeves provides optimal heat dissipation, consistent performance during continuous use and long engine life.
Silent Type Acoustically designed sound reduction system, with a moulded casing and noise-absorbing glass wool construction to provide very quiet operation of only 51.5 dB.
Auto Decompression System Automatically reduces engine compression to provide a light recoil starter pull for effortless manual starting.
Overload Protection Non-fuse Thermal Breaker
Protects AC circuits in case of an overload for added durability and peace of mind.
12-Volt DC Output
Provides recharging capacity for 12-volt batteries (charging cables included)
Oil Watch Warning System Automatically shuts off the engine when oil level is low and cannot be re-started until oil is added, preventing engine damage and costly repairs while enhancing long-term durability
Specially Designed Muffler and Spark Arrestor
Offers super quiet operation and keeps sparks from exiting the exhaust system, reducing chance of fires caused by an errant spark
Fuel gauge Allows the operator to monitor the fuel level without opening the filler cap