Zoom on the Yamaha EF2800i
In summary, the Yamaha EF2800i is a compact and lightweight portable inverter generator especially useful for:
- Tailgating and campground aficionados with the desire of enjoying power anywhere they go
- Handcrafting enthusiasts who wish to work on-the-go
- 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 looking for even more independence
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.
The inverter generator is rated for a noise of 65 dBA (just slightly more noisy than background music). Its starting mechanism is based on 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.
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.
Delicate electronics can be plugged in an AC outlets safely, as the EF2800i generates a clean sine wave, reaching a <2.5% Total Harmonic Disruption (THD).
The control panel includes the following 3 AC outlets:
Additionally, it features 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 dimensions of the Yamaha EF2800i, which are L19.2 x W15.6 x H16.7 in, and its typical, open frame design provides stability and enables the generator to be raised above ground level. The featured design is ideal for the outdoors and all tough environments.
As the EF2800i's weight is only 68 lbs, it can follow you and your power needs anywhere. Additionally, the generator’s mobility is also improved by its open frame design, as it can be easily grabbed and shifted.
The light indicators show you if its oil levels are insufficient, the generator is ready and the generator is on overload.
A built-in fuel gauge allows for a quick, easy and convenient check of the fuel level of the inverter generator.
As far as security is concerned, the generator can be used with a peace of mind, as it features an overload protection (circuit breaker) and an automatic low oil shut-off (Oil Watch system).
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 an owner's manual (opens in a new tab), 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, 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 In terms of weight, one of the champions in their power range is the Westinghouse iGen2600, standing at just 48 lbs.
- This inverter generator, with its lowest possible noise rated at 65 dBA falls into the more noisy category, compared to other devise of a similar 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.
- The EF2800i, falls within the average autonomy range compared to generators of a roughly same power, with a run time of up to 14.7 hours at a 25% load and a full tank. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Westinghouse WGen2000, reaching up to 26 hours.
- While the run time is an important parameter, it is dependent on the fuel tank’s capacity and thus, doesn’t say much on its own unless we consider fuel consumption as well. This inverter generator has an average fuel consumption among comparably powerful devices, as it reaches 0.18 GPH (gallon per hour) at a 25% load. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.1 GPH, the Westinghouse iGen2600 is a device you should look out for.
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
- 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||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||Microwave (1000 watts)||1500||1500|
|Refrigerator (energy star)||192||1192|
|Total||1792 W||2792 W|
|For camping||RV AC (11,000 BTU)||1010||1600|
|Total||1990 W||2580 W|
|Electric fence (25 miles)||250||250|
|Total||1650 W||2750 W|
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