What drew me to the Yamaha EF2000iS was the name, Yamaha. This company knows how to design an engine and they put that design know-how into this little 4-stroke, gasoline powered generator. One Amazon reviewer stated, after two years of regular use, “Have had zero problems with this unit so far.” Rated at 1,600 watts with a max output of 2,000 watts, it handles common household appliances, power tools, air compressors, and battery chargers. The front panel controls are labeled well, making it a breeze to operate right out of the box. It is relatively light, portable, fuel efficient, and quiet. It even has a 12 volt DC output to charge batteries without the need for an external battery charger.
The Yamaha EF2000iS is very fuel efficient. It has a one gallon fuel tank, which may seem small, but a full tank of gasoline will run this generator for more than ten hours in economy mode. That means it costs less than 35 cents an hour to operate and lasts long enough to get a good night’s sleep before refueling. Speaking of a good night’s sleep, this generator is extremely quiet. The diesel-powered generators used in the military during field operations are set into holes dug into the ground to suppress the noise they produce. It, in contrast, produces a light hum in economy mode and is only slightly louder at higher output levels. In fact, the noise level is so low that it fades into the background after a while and becomes barely noticeable.
Yamaha EF2000iS Pros & Cons
This generator puts power where you need it, when you need it. Seasonal power outages are common occurrences. Early spring thunderstorms or winter ice storms play havoc with power lines, but the Yamaha EF2000iS knocks the sting out of these bad situations. Plugging a refrigerator into the unit prevents the loss of perishable and frozen foods. Connecting a rechargeable battery station insures that you have spares ready for a flashlight. In homes that use rechargeable telephones, a loss of power means a loss of telephone service. Use the product to recharge the house phone, or take advantage of the built-in inverter system to charge a cell phone without the worry of fluctuating power levels damaging it. This system is also great for camping. Forget about the ice packed cooler that leaves food submerged in a pool of water after a single day. Keep your food safe and cool in a small, portable refrigerator. Bring along a small television to catch the game, or keep an iPad charged up and ready to check the local weather forecast. Hook up a small air compressor and never worry about trying to find a station to air up your tires. The unit is compact and weighs less than 50 pounds, so it’s easy to set it up where you need it.
There are a few downsides to it, however. The unit does not produce enough power to sustain an air conditioner or a standard microwave oven running at full power. It is designed to allow a second unit to be connected and overcome this limitation, but on its own, it cannot keep up with the power demands of these appliances. Secondly, while there is an oil indicator light that warns of low oil levels, there is no dipstick to measure the oil level. Building a simple dipstick into the cap would help prevent running the unit at low oil levels. Further, the unit smells of gasoline immediately after shutting it down. This can be alleviated, somewhat, by shutting off the fuel supply and allowing it to burn the remaining fuel in the carburetor before shutting down. Finally, the unit requires some mechanical knowledge to keep it working in top condition. Changing spark plugs is something to become familiar with to avoid the cost of sending it to a repair shop for minor maintenance.
This generator is a perfect emergency power source. Its quality craftsmanship, fuel efficiency, quiet operation, and versatility make it a great addition to any home’s emergency management inventory. The Yamaha EF2000iS can bring peace of mind, knowing that if power is needed, this item will fit the bill.