Leave it to Yamaha to take a good thing and make it even better, like our Inverter Series of generators - bringing along a generator was never easier or quieter. We adapted inverter technology because it translates into a compact, lightweight design that makes these generators easy to transport whether you're camping, fishing, using them around the house, during a power outage, or on the job site. Plus, they're so quiet, they're less obtrusive and more suitable for a wider range of applications.

Inverter technology regulates the electrical output using Pulse Width Modulation (PWM) to produce clean, high-quality electricity. That means these generators deliver a "pure" sine wave with full width and amplitude so you can use them with confidence as a power source for computers, solid-state appliances with built-in computer functions or microcomputer-controlled power tools.

Yamaha is always pushing the technology envelope to make generators quieter and more efficient while continuing to deliver exceptional performance. The perfect example is Yamaha's new Smart Throttle feature that automatically adjusts the engine speed to precisely match the load. Smart Throttle allows the generator to run quieter while increasing fuel efficiency, lengthening engine life, and extending running time between refueling.

Generating electricity can be a noisy proposition. That's why we created Noise Block, our acoustically engineered sound reduction system. This technology utilizes various sound absorbing materials, molded cases, an intake silencer, fiberglass insulation, plus newly designed mufflers and fans to provide virtually silent running while maintaining quality performance.

Best of all, at the heart of each generator is a muscular Yamaha engine that delivers strong, consistent performance. Every generator also includes a US Forestry Service approved spark arrestor as well as a low-oil warning system for long life and added peace of mind. Yamaha Inverter generators - they're ready, willing, and able to tackle the widest variety of tasks.

• (L x W x H) 17.7" x 9.4" x 14.9".
• 27.9 Lbs.
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Who would think a 27 pound generator could deliver so much performance and be so quiet? Yamaha, that's who. Check out the Yamaha EF1000iS inverter generator - Yamaha's Noise Block technology reduces sound output down to a whisper (you'll hardly know it's running). And thanks to its compact, ergonomic design, the EF1000iS goes virtually anywhere. It's packed with features to make life easier, like a large fuel filler opening, a fuel petcock to shut off the fuel to reduce carburetor contamination during storage, and a built-in 12-volt battery charging system for RV, auto, or marine. And thanks to Smart Throttle, it's good for the long run, providing up to a 12-hour run time without refueling. The EF1000iS is ideal for RV AC/DC converters, running small appliances, tools, and lights - it's a powerhouse performer right at your fingertips.

• (L x W x H) 19.2" x 15.6" x 16.7".
• 64.0 Lbs.
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Need additional power in a lightweight package? The Yamaha EF2800i has it all - high output and quiet operation. In fact, the EF2800i is the quietest generator in its class. And, you'll find it's a powerful ally whether providing backup power at home, or electricity for the campsite, including powering the air conditioner on your 5th wheel or travel trailer. It's also perfect for recharging batteries or running small to medium appliances, making it suitable for home backup. The EF2800i comes packed with features like an inverter unit with Pulse Width Modulation (PWM), Smart Throttle, and an efficient overhead valve engine. And thanks to its multipole rotor and compact stator, the EF2800i tips the scales at a mere 64 pounds, making it the lightest generator in its class. Lightweight and powerful, with clean, high-quality electrical power output - that's the EF2800i.

EF3000iSE
• (L x W x H) 26.7" x 17.5" x 21.9".
• 147.4 Lbs.

EF3000iSEB
• (L x W x H) 26.7" x 17.5" x 21.9".
• 151.8 Lbs.
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Strengthening the core of our inverter lineup are the Yamaha EF3000iSE and the EF3000iSEB, two of the most revolutionary inverter models available today. Ever need a little boost - extra power that gets your tool or air conditioner started quickly and efficiently? Well, now you can get that "boost" thanks to the EF3000iSEB generator from Yamaha. The "B" on the EF3000iSEB means it features Yamaha Boost Technology, which provides additional power when you need it. Perfect for the RV enthusiast, the iSEB is an ideal source of power for either a 5th wheel or travel trailer system. The Boost Control Unit in the generator automatically senses when additional boost is needed and it uses power from the internal 12-volt battery to produce additional amperage. In fact, the additional amps boost the alternator's 3000-watt output for up to 10 seconds, increasing the output so it's comparable to a conventional 3500-watt generator. Supplying that extra boost for 10 seconds is ample time to power equipment that may need that extra kick to start quickly and efficiently, such as a 13,500 btu air conditioner or other trailer appliances. However, if you find yourself not needing that little extra kick, you can take advantage of the Yamaha EF3000iSE, which includes all the features of the EF3000iSEB but without our Boost Technology feature. Both the iSE and the iSEB include Yamaha's performing enhancing features, such as Inverter Technology, Smart Throttle, and Noise Block. So both are capable of producing clean, high-quality electricity with extremely quiet operation (the quietest in the industry). Both units also feature a fresh, new ergonomic design with easy control access, effortless electric starting and built-in wheels so they're remarkably portable - providing convenient power to the locations you need most, whether around the home or at a campsite. The EF3000iSE and EF3000iSEB - generators on the leading edge of technology.