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Description
Zoom on the Yamaha EF3000iS
In summary, the Yamaha EF3000iS is a quiet portable inverter generator especially useful for:
- Handcrafting enthusiasts who wish to work on-the-go
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
- Camping and tailgating buffs looking to enhance their experience
- RV travellers looking for even more independence
The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.
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.
The inverter generator features a conventional pull-start mechanism. It is rated for a noise of 54.5 dBA (just slightly more noisy than a conversation at home).
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.
As the EF3000iS produces a clean sine wave, with a <3% Total Harmonic Distortion (THD), sensitive electronics may be plugged in the AC outlets safely.
Outlets
The control panel includes the following 3 AC outlets:
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.
Portability
Since the Yamaha EF3000iS is an inverter generator, its closed design (L26.8 x W17.5 x H21.9 in) has an esthetical advantage over conventional, open frame devices. This type of design is the most modern and convenient way to recreationally generate power.
Even though this device may be technically portable (as in movable), manipulation and transportation without special equipment can be a challenge, as it weighs 136 pounds. Still, once it is on the ground, its set of 4 wheels and its double handle can easily solve the issue of low mobility and allow for easy relocation of the device.
Features
The EF3000iS's control panel
The light indicators show you if the oil level is too low, the generator is ready and the generator is overloaded.
Thanks to a built-in fuel gauge, the inverter generator allows you to quickly, conveniently and easily check the gas level at a glance.
As for its security measures, the device features an overload protection (circuit breaker) and an automatic low oil shut-off (Oil Watch system), letting you use it with a peace of mind.
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.
Besides the usual set of documentation and owner's manual (opens in a new tab) 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. Therefore, its sale and purchase are permitted in all of the 50 states, including California.
Moreover, it features a spark arrestor, so it is adequate for use in forested areas.
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).
- A weight of 136 lbs makes the Yamaha EF3000iS one of the heavier inverters in the 2500-3500 rated wattage range. Regarding dry weight, one of the champions in the same power range is the Pulsar PGD40iSCO, with a dry weight of only 46 lbs.
- As its lowest possible noise is rated at 54.5 dBA, this inverter generator qualifies as one of the more quiet of the products of similar type and 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.
- Since the EF3000iS boasts with a run time of up to 18.6 hours at 25% load, it can be safely judged as a device of a higher run time than most inverter generators of a comparable output. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Champion 200914, as it provides up to 22 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. 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 0.13 GPH, the Energizer eZV3500P is a device you could look out for.
Here's a list of the most popular specific comparisons:
Price comparison
As you can see from this interactive chart, when compared to other 2500-3500W inverter generators, the Yamaha EF3000iS is on the expensive side of the price range.
While certainly not the cheapest of its kind, purchasing it would most likely also mean enjoying the reliability of a high-end product.
The bottom line
- CO Sensor
- Inverter
- Quiet for its power (54.5 dBA)
- High run time
- Made in Japan
- Decent fuel efficiency
- On the expensive side
- No data center
- No electric start
- No parallel ports
- On the heavy side (136 lbs)
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 |
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, many of their 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 (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 | AC (10,000 BTU) | 1500 | 2200 |
| 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.
