Zoom on the Yamaha EF2800i
In summary, the Yamaha EF2800i is a compact and lightweight portable inverter generator especially useful for:
- Camping and tailgating hobbyists looking for a portable power source
- DIYers who wish to improve their efficiency with tools
- Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
- Professionals who want to ensure that a power failure will not prevent them from working
- RV travellers who wish to upgrade their experience to another level
In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.
Power & Run Time
The Yamaha EF2800i's design includes a gasoline-fueled 171 cc (5.5 hp) Yamaha MZ175 OHV 4-stroke engine. With a 120V output, it gives a running wattage of 2500W and also a peak wattage of 2800W.
With a noise rating of 65 dBA (just slightly more noisy than background music), the inverter generator features a simple traditional pull-start mechanism.
This generator features Yamaha's Smart Throttle™. This load-sensing feature automatically adjusts engine speed to match its load in order to offer greater fuel efficiency and noise reduction.
With a fuel capacity of 2.6 gallons, the EF2800i may run for up to 14.7 hours with a full tank (fuel consumption around 0.18 GPH).
As the EF2800i produces a clean sine wave, with a <2.5% Total Harmonic Disruption (THD), sensitive electronics may be plugged in the AC outlets safely.
The control panel provides the upcoming 3 AC outlets:
In addition, it provides 1 DC outlet: there's a 12V 10A receptacle with which you may charge your batteries with ease.
While this Yamaha generator is not RV Ready, its L5-30R receptacle can be used for a simple RV connection with an L5-30P to TT-30R adaptor.
The design of the Yamaha EF2800i is a typical, open frame, with the dimensions of L19.2 x W15.6 x H16.7 in, offering support and stability and enabling the possibility of raising it above ground level. The design is ideal for rough environments and demanding outdoor use.
The EF2800i's dry weight of 68 lbs lets you use its power anywhere needed. Furthermore, the open frame of the generator further helps when holding and moving it to a different place.
The device’s light indicators will display if the generator is overloaded, the generator is ready and its oil levels are insufficient.
The inverter generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.
Security-wise, this product benefits from an overload protection (circuit breaker) and an automatic low oil shut-off (Oil Watch system), which gives you a complete peace of mind when using it.
Yamaha's Oil Watch warning system gives you an extra peace of mind. This feature enhances long-term durability by preventing engine damage and costly repairs. Once the oil begins to run low, the generator automatically shuts off and cannot be re-started until oil is added.
Besides the features previously mentioned, accessory-wise, the Yamaha EF2800i comes with the usual documentation and owner's manual (opens in a new tab) needed to get you promptly started.
The Yamaha EF2800i is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.
However, it features a spark arrestor, so it is adequate for use in forested areas.
The Yamaha EF2800i versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Yamaha EF2800i compare to generators of similar power (between 2000 and 3000 W).
- In terms of its dry weight, the Yamaha EF2800i stands at only 68 lbs, meaning that is one of the lighter devices of the 2000-3000 rated wattage category If weight is your top priority, one of the champions in this power category is the Ford FG2300iS, weighing just 46.3 pounds.
- If compared to generators capable of producing a similar running wattage, this inverter generator with a lowest emitted noise of 65 dBA can be considered somewhat noisy. If noise emissions are important to you, one of the least noisy generators of this power range is the Honda EU3000iS with only 50 dBA.
- Offering up to 14.7 hours of running time on a full tank at 25% load, the EF2800i is within the average autonomy range of similarly powerful generators. If you consider autonomy on a single full tank as one of the deciding factors, one of the generators in the same power range that offers the highest run time is the Westinghouse WGen2000, with up to 26 hours.
- Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. As this inverter generator uses an estimated 0.18 GPH (gallon per hour) at a 25% load, it finds itself in the average gasoline consumption range of similar products. If you wish to further improve in the area of fuel efficiency, the Westinghouse iGen2500, which boasts with a gas consumption of only 0.1 GPH, may be the right generator for you.
As you can see from this interactive chart, when compared to other 2000-3000W generators, the Yamaha EF2800i is on the average side of the price range.
Therefore, this generator nicely fits in the expected budget for this kind of product.
The bottom line
- In the expected price range
- GFCI Outlets
- Lightweight (68 lbs)
- Decent run time
- Decent fuel efficiency
- No data center
- No electric start
- No parallel ports
- Not CARB-compliant
- On the noisy side (65 dBA)
Features and Specifications
|Engine||171 cc Yamaha MZ175 OHV 4-stroke|
|Voltage||AC: 120V 60 Hz, DC: 12V|
|Running watts||2500 W|
|Starting watts||2800 W|
|Running amps||20.8 amps|
|Peak amps||23.3 amps|
|Run time @50% load||Unknown|
|Run time @25% load||14.7 h|
|Automatic Voltage Regulation||Inverter|
|AC outlets|| |
|DC outlets||1x 12V 10A receptacle|
|Indicators||Low oil, overload and output ready|
|Fuel tank||Metal, 2.6 gal|
|Approx. dimensions (L x W x H)||19.2 x 15.6 x 16.7 in|
|Noise (lower limit)||65 dBA|
|Security||Low oil and overload protection|
Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.
With a rich history of over 130 years, the Japanese based Yamaha Corporation, founded in 1887, has tipped its fingers in every industry imaginable, most notably motorcycles, musical instruments and electronics. The company boasts with a wide range of products, including many of the top rated portable generators. However, it has been reported that many of the newer models are made in China, rather than Japan.
The Yamaha EF2800i is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Yamaha generators, please consult Yamaha's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-962-7926.
Questions & Answers
What can it power?
|Item||Running Watts||Starting Watts|
|At home||Refrigerator (energy star)||192||1192|
|Electric fry pan||1500||1500|
|Total||1792 W||2792 W|
|For camping||Radiant heater||1300||1300|
|Total||1980 W||2430 W|
|Electric fence (25 miles)||250||250|
|Total||1650 W||2750 W|
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