Yamaha EF3000iS - 2800/3000W Inverter Generator
The Yamaha EF3000iS is a quiet inverter generator with a rated wattage of 2,800 W and a starting wattage of 3,000 W. (Read full specs)
Get this unit while retailer inventory lasts, as Yamaha no longer produces this model.
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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.
Zoom on the Yamaha EF3000iS
In summary, the Yamaha EF3000iS is a quiet portable inverter generator especially useful for:
- Amateur DIY lovers
- Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
- Tailgating and campground aficionados with the desire of enjoying power anywhere they go
- RV travellers looking for even more independence
In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed.
Power & Run Time
The Yamaha EF3000iS
The Yamaha EF3000iS is powered by a 171 cc Yamaha MZ175 OHV 4-stroke engine. It delivers 120V, runs on gasoline and offers a running wattage of 2,800W as well as a peak wattage of 3,000W.
Enjoying a noise rating of 54.5 dBA (just slightly more noisy than a conversation at home), this inverter generator gets running thanks to a manual recoil starter system.
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 3.4 gallons, the EF3000iS may run for up to 18.6 hours with a full tank (fuel consumption around 0.18 GPH).
Sensitive electronics can be safely plugged in the AC outlets, as the EF3000iS produces a clean sine wave, with a <3% Total Harmonic Distortion (THD).
Outlets
The control panel features 3 AC outlets as follows:
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.
Portability
As an inverter generator, the Yamaha EF3000iS showcases a closed design (L26.8 x W17.5 x H21.9 in), enhancing aesthetics and ensuring quieter operation compared to conventional, open frame models. The design follows the contemporary trends and is perfect for recreationally generating power.
Despite its 136 lbs, the generator falls under the category of 'portable,' signifying its movability, although its weight may hinder easy portability. However, the constrained maneuverability is addressed with the assistance of its set of 4 wheels and its double handle, allowing for easy shifting once the generator is placed on the ground.
Features
The EF3000iS's control panel
The light indicators show you if the oil level is too low, the generator is on overload and the generator is ready.
The fuel level of the inverter generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.
From a security standpoint, the generator is furnished with an automatic low oil shut-off (Oil Watch system) and an overload protection (circuit breaker), ensuring peace of mind during operation.
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.
It also includes a carbon monoxide sensor. This sensor is designed to monitor the level of carbon monoxide present during the generator's operation. If the generator is positioned incorrectly and carbon monoxide levels rise to an unsafe level, the generator will automatically shut down.
Beyond the regular documentation and owner's manual (opens in a new tab) for quick start, Yamaha has included a battery charging cables in the packaging of the EF3000iS.
Product Video
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 inverter generators of similar power (between 2500 and 3500 W).
- With a weight of 136 lbs, the Yamaha EF3000iS is notably on the heavier side among inverter generators in the 2500-3500 rated wattage range. If weight matters to you, one of the champions in this power range is the Pulsar PGD40iSCO with only 46 pounds.
- Delivering a rated noise output as low as 54.5 dBA, this inverter generator is has a quieter operation that most units of similar type and power. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Honda EU3000iS, whose lowest noise levels reach just 50 dBA.
- At 25% load, the EF3000iS boasts a higher run time than most similarly powerful inverters, reaching up to 18.6 hours. If you wish to prioritize autonomy, the Champion 200977 shines as one of the top contenders, offering one of the highest run times among generators with similar power output, totaling up to 22 hours.
- Run time is a key metric, but it's dependent on the generator's fuel tank capacity. Therefore, discussing fuel efficiency is necessary for a complete understanding. This inverter generator reaches an estimated fuel consumption of 0.18 GPH (gallon per hour) at a 25% load, making it average, for the previously mentioned wattage range. If you wish to get a unit of similar power, but with one of the best fuel efficiency, you could consider the Honda EU3200i, which has an impressively low fuel consumption of 0.14 GPH.
Here's a list of the most popular specific comparisons:
Price comparison
As you can see from these interactive charts, when compared to other 2500-3500W inverter 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
- In the expected price range
- CO sensor
- Inverter
- Quiet for its power (54.5 dBA)
- High run time
- Made in Japan
- Decent fuel efficiency
- No data center
- No electric start
- No parallel ports
- 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.
Features and Specifications
| Inverter | Yes |
|---|---|
| Parallel capable | No |
| RV ready | No |
| Fuel | Gasoline |
| Engine | 171 cc Yamaha MZ175 OHV 4-stroke |
| Starting system | Recoil |
| Warranty | 3 years |
| Voltage | AC: 120V 60 Hz |
|---|---|
| Running watts | 2,800 W |
| Starting watts | 3,000 W |
| Running amps | 23.3 amps |
| Peak amps | 25 amps |
| Run time @50% load | Unknown |
| Run time @25% load | 18.6 h |
| GFCI outlets | No |
|---|---|
| Covered outlets | No |
| Automatic Voltage Regulation | Inverter |
| AC outlets |
|
| DC outlets | No |
| Data center | No |
| Indicators | Low oil, overload and output ready |
| Fuel tank | Metal, 3.4 gal |
| Fuel gauge | Yes |
| Weight | 136 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 26.8 x 17.5 x 21.9 in |
| Noise (lower limit) | 54.5 dBA |
| THD | < 3% |
| Compliance | CARB, EPA |
| Security | Low oil and overload protection, CO monitoring |
| Spark arrestor | Yes |
| Neutral | Floating |
| Accessories included | Battery charging cables |
| Country of origin | Japan |
| UPC | 810856030645 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
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, many of their models were made in China, rather than Japan. In 2023, Yamaha transfered its Power Products business to Willbe Co., Ltd. Yamaha generators are now no longer manufactured, with sales limited to existing stock.
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 (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 | Electric fry pan | 1500 | 1500 |
| Refrigerator (energy star) | 192 | 1192 | |
| Slow cooker | 270 | 270 | |
| Cell phone charger | 20 | 20 | |
| Total | 1982 W | 2982 W | |
| For camping | RV AC (11,000 BTU) | 1010 | 1600 |
| RV refrigerator | 180 | 600 | |
| Toaster oven | 800 | 800 | |
| Mixer | 200 | 200 | |
| Pair of small speakers | 45 | 45 | |
| Total | 2235 W | 2825 W | |
| For work | Grinder | 1400 | 2500 |
| Drain cleaner | 250 | 250 | |
| Bug zapper | 80 | 80 | |
| Total | 1730 W | 2830 W |
Couldn't find the right answer for you? Ask your own question.
