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Yamaha EF3000iS Spec Review

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The Yamaha EF3000iS is a quiet portable inverter generator with a rated wattage of 2800 W and a starting wattage of 3000 W.

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Description

QUIET, CLEAN POWER AT A VALUE PRICE. Quiet and portable, this inverter has powerful features all backed by a 3‑year warranty. (source: Yamaha)

Zoom on the Yamaha EF3000iS

In summary, the Yamaha EF3000iS is a quiet portable inverter generator especially useful for:

  • 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
  • Camping and tailgating hobbyists looking for a portable power source
  • RV travellers who wish to upgrade their experience to another level

In the following paragraphs, we shall explore the power characteristics, available outlets, portability and any additional features of the device, along with its emission compliance parameters.

Power & Run Time

The Yamaha EF3000iS in use

The Yamaha EF3000iS

The Yamaha EF3000iS houses a 171 cc Yamaha MZ175 OHV 4-stroke engine, which provides 120V, consumes gasoline and delivers a running wattage of 2800W along with a peak wattage of 3000W.

Enjoying a noise rating of 53 dBA (just slightly more noisy than a refrigerator), this inverter generator gets running thanks to 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 EF3000iS can operate for up to 18.6 hours with a full tank (fuel consumption around 0.18 GPH), due to its fuel capacity of 3.4 gallons.

Delicate electronics can be plugged in an AC outlets safely, as the EF3000iS generates a clean sine wave, reaching a <3% Total Harmonic Disruption (THD).

Here are a few examples of what this generator could allow you to simultaneously power:Note: Not all of these items may be able to start at the same time. These examples are based on a maximum load of 75 % and on wattage estimates. Use our wattage calculator to find out if this product will be suitable for your needs.

Outlets

The control panel includes the following 3 AC outlets:

Duplex 120V 20A (5-20R)
120V 30A (L5-30R) receptacle

Furthermore, it has 1 DC outlet: there's a 12V 12A receptacle with which charging your batteries is made easy.

Even if this Yamaha generator isn't quite RV Ready, it still allows for an easy RV connection via an L5-30P to TT-30R adaptor, thanks to its L5-30R receptacle.

Portability

The Yamaha EF3000iS is an inverter generator and has an encased design of the following dimensions: L26.8 x W17.5 x H21.9 in. Thus, it is more esthetical than conventional, open frame products. This type of design is the most modern and convenient way to recreationally generate power.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 136 lbs. Never less, it can still be moved quite conveniently with the help of a wheel kit and a double handle, once it is placed on the ground.

Features

Panel of the Yamaha EF3000iS

The EF3000iS's control panel

Several light indicators serve to show you when the generator is ready, the oil level is too low and the generator is overloaded.

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.

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.

Besides the usual set of documentation and user manual to get you promptly started, Yamaha also included a battery charging cables in the EF3000iS's packaging.

Emissions

The Yamaha EF3000iS 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, making it usable in forested areas.

The Yamaha EF3000iS versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Yamaha EF3000iS compare to generators of similar power (between 2500 and 3500 W).

  • As its dry weight is 136 pounds, the Yamaha EF3000iS is one of the heavier of the products which can generate 2500 to 3500 running watts. If weight matters to you, one of the champions in this power range is the Honda EG2800i with only 66.6 pounds.
  • At a lowest noise rating of 53 dBA, this inverter generator is one of the quieter devices of similar power. 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.
  • As the EF3000iS features an autonomy of 18.6 hours at 25% load, it has a higher run time than an average generator of its power range. 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 Honda EU3000iS, with 20 hours .
  • The run time is important, but also hugely depends on the capacity of the fuel tank and doesn't mean much if we don't talk about fuel consumption as well. 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 you wish to acquire one of the most gasoline efficient products of this power range, the Energizer eZV3200P, with a fuel consumption of 0.13 GPH could be in your good books.

Here's a list of the most popular specific comparisons:

Price comparison

As you can see from this dynamic chart, when compared to other 2500-3500W generators, the Yamaha EF3000iS 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

STRENGTHS:
  • In the expected price range
  • Inverter
  • Quiet for its power (53 dBA)
  • High run time
AVERAGE SPECS:
  • Decent fuel efficiency
WEAKNESSES:
  • No data center
  • No electric start
  • On the heavy side (136 lbs)

Do you own the Yamaha EF3000iS and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Where to buy the Yamaha EF3000iS?

You can easily buy your Yamaha generator online. You will benefit from a convenient delivery and avoid carrying the heavy package yourself. Here are a few reliable online sellers:
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Features and Specifications

General

InverterYes
PortableYes
Parallel capableNo
RV readyNo
FuelGasoline
Engine171 cc Yamaha MZ175 OHV 4-stroke
Starting systemRecoil

Power

VoltageAC: 120V 60 Hz, DC: 12V
Running watts2800 W
Starting watts3000 W
Running amps23.3 amps
Peaks amps25 amps
Run time @50% loadN/A
Run time @25% load18.6 h

Features

GFCI outletsNo
Covered outletsNo
Automatic Voltage RegulationYes
AC outlets1x Duplex 120V 20A (5-20R)
1x 120V 30A (L5-30R)
DC outlets1x 12V 12A
Data centerNo
IndicatorsLow oil, overload and output ready
Fuel tankN/A
Fuel gaugeYes

Misc

Weight136 lbs
Dimensions (L x W x H)26.8 x 17.5 x 21.9 in
Noise (lower limit)53 dBA
THD< 3%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralFloating
Accessories includedBattery charging cables
Warranty3 years

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.

About Yamaha

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.

Warranty Information

The Yamaha EF3000iS 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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