Zoom on the Yamaha EF2800i
In a nutshell, the Yamaha EF2800i is a compact and lightweight portable inverter generator mostly geared towards:
- Camping and tailgating hobbyists looking for a portable power source
- DIYers who wish to improve their efficiency with tools
- Homeowners in need of an emergency backup power for their essentials
- Professionals who want to be able to deliver results, even during a power failure
- RV travellers looking for even more independence
Power & Run Time
The Yamaha EF2800i houses a 171 cc (5.5 hp) Yamaha MZ175 OHV 4-stroke engine, which provides 120V, consumes gasoline and delivers a running wattage of 2500W along with a peak wattage of 2800W.
With a noise rating of 65 dBA (just slightly more noisy than an office), the inverter generator features a conventional 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.
The EF2800i can operate for up to 14.7 hours with a full tank (fuel consumption around 0.18 GPH), due to its fuel capacity of 2.6 gallons.
Sensitive electronics can be safely plugged in the AC outlets, as the EF2800i produces a clean sine wave, with a <2.5% Total Harmonic Disruption (THD).
The control panel features the following 3 AC outlets:
Furthermore, it has 1 DC outlet: there's a 12V 10A receptacle with which you may charge your batteries with ease.
Even though this Yamaha generator isn't quite RV Ready, its L5-30R receptacle allows an easy RV connection via 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 device has been designed for tough environments and demanding outdoor use.
The EF2800i's dry weight of 68 lbs lets you use its power anywhere needed. Additionally, the generator’s mobility is also improved by its open frame design, as it can be easily grabbed and displaced.
The device’s light indicators will display if the generator is ready, the oil level is too low and the generator is overloaded.
The fuel level of the inverter generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.
As far as security is concerned, the generator can be used with a peace of mind, as it features an automatic low oil shut-off (Oil Watch system) and an overload protection (circuit breaker).
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.
As for its accessories, apart from the previously mentioned features, the Yamaha EF2800i also comes with the basic documentation and a user manual, allowing you to start it right away.
The Yamaha EF2800i is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 50 states, including California.
Moreover, it features a spark arrestor, which makes it suitable 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).
- As far as its dry weight is concerned, the Yamaha EF2800i weighs just 68 pounds and thus, it is one of the lighter 2000 to 3000 rated wattage generators. Regarding dry weight, one of the champions in the same power range is the Westinghouse iGen2600, with a dry weight of only 48 lbs.
- As this inverter generator has its lowest possible noise of 65 dBA, it should be considered noisier compared to its peers of a comparable running wattage. 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.
- Given that the EF2800i reaches an autonomy of up to 14.7 hours with a full tank and at 25% load, it is placed within the average autonomy range of similarly powerful generators. Concerning the run times, one of the several devices with a comparable output, offering the highest autonomy, is the Westinghouse WGen2000, which is able to run for up to 26 hours.
- Even though run times are undoubtedly important, they are dependent on the fuel capacity to a large extent. For a more wholesome picture, we must take into consideration the fuel consumption of the generator. Standing at an estimated 0.18 GPH (gallon per hour) at a 25% load, this inverter generator is somewhat average in this area compared to other devices, within the aforementioned wattage range. If fuel consumption is your top priority, we suggest to check out the Westinghouse iGen2600, which has a fuel consumption of only 0.1 GPH and thus, is one of the most efficient devices in our database.
As you can see from this dynamic 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
- Lightweight (68 lbs)
- Decent run time
- Decent fuel efficiency
- No data center
- No electric start
- 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|
|Peaks amps||23.3 amps|
|Run time @50% load||N/A|
|Run time @25% load||14.7 h|
|Automatic Voltage Regulation||No|
|AC outlets||1x Duplex 120V 20A (5-20R) GFCI |
1x 120V 30A (L5-30R)
|DC outlets||1x 12V 10A|
|Indicators||Low oil, overload and output ready|
|Fuel tank||Metal, 2.6 gal|
|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. Alternatively, you can also contact their Customer Support: 1-800-962-7926.
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