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Description
Zoom on the Yamaha EF5500D
In a nutshell, the Yamaha EF5500D is a portable generator mostly geared towards:
- RV travellers who wish to upgrade their experience to another level
- People occasionally participating in outdoor fairs, festivals or events
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
- Professionals in need of safely powering high-intensity work or lighting equipment
In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.
Power & Run Time
The Yamaha EF5500D
The Yamaha EF5500D's core is the 358 cc Yamaha MZ360 OHV 4-stroke engine, which runs on gasoline. With an output of 120/240V, it provides a running wattage of 4500W and a peak wattage of 5500W.
Enjoying a noise rating of 74.1 dBA (just slightly more noisy than a vacuum cleaner), this generator gets running thanks to a conventional pull-start mechanism.
The fuel capacity of 6.9 gallons allows the EF5500D to operate for around 13.5 hours at 50% load with a full tank (fuel consumption around 0.51 GPH).
Outlets
The control panel features the following 6 AC outlets:
This Yamaha generator isn't quite RV Ready, but it features an L5-30R receptacle, allowing a simple RV connection through an L5-30P to TT-30R adaptor. Besides, because the EF5500D is equipped with a twist-lock L14-30R receptacle, it is transfer switch ready: it can power your home during a power outage, as it can be easily connected to your breaker box to power your household.
Portability
The Yamaha EF5500D has a conventional, open frame design, of the following dimensions: L21.9 x W29 x H31.5 in, which offers support and allows it to be raised above ground level. This type of design is ideal for tough environments and heavy outdoor use.
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 221.7 lbs. However, its challenging mobility is solved by its wheel kit and its folding handle, which will ease its displacement, once it is on the floor.
A lift hook located on the top of the frame offers an additional safety feature while facilitating the transport, loading and unloading of the generator.
Features
The EF5500D's control panel
The control panel of the EF5500D includes a digital data center, which assists you in monitoring its status and activity, as it provides information on the lifetime run hours.
In addition to this info, a light indicator shows you if the oil level is too low.
Thanks to a built-in fuel gauge, the generator allows you to quickly, conveniently and easily check the gas level at a glance.
As for its security measures, the device features an automatic low oil shut-off (Oil Watch system) and an overload protection (circuit breaker), 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.
Besides the usual set of documentation and owner's manual (opens in a new tab) to get you promptly started, Yamaha also included a tool kit in the EF5500D's packaging.
Emissions
The Yamaha EF5500D is EPA-approved and CARB-compliant. Thus, selling and purchasing this generator is allowed in each of the 50 states, including California.
Moreover, it features a spark arrestor and therefore, can be used in forested areas.
Product Video
The Yamaha EF5500D versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Yamaha EF5500D compare to generators of similar power (between 4000 and 5000 W).
- As its dry weight is 221.7 pounds, the Yamaha EF5500D is one of the heavier of the products which can generate 4000 to 5000 running watts. In terms of weight, one of the champions in their power range is the Pulsar PG5250, standing at just 99.5 lbs.
- Among the generators of a comparable running wattage, this generator with a lowest noise of 74.1 dBA can be judged as noisy. If you are concerned with noise, check out the Yamaha EF4500iSE, which is one of the least noisy generators in its power range, with a noise rating of just 58 dBA.
- Thanks to an impressive running time of around 13.5 hours at 50% load, the EF5500D benefits from a higher run time than many generators of a similar output. 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 Dewalt DXGN4500, with around 15 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. As this generator uses an estimated 0.51 GPH (gallon per hour) at a 50% load, it finds itself in the average gasoline consumption range of similar products. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.33 GPH, the Pulsar PG5250B is a device you should look out for.
Price comparison
As you can see from this interactive chart, when compared to other 4000-5000W generators, the Yamaha EF5500D 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
- High run time
- Decent fuel efficiency
- No electric start
- On the heavy side (221.7 lbs)
- On the noisy side (74.1 dBA)
Features and Specifications
| Inverter | No |
|---|---|
| Portable | Yes |
| Parallel capable | No |
| RV ready | No |
| Fuel | Gasoline |
| Engine | 358 cc Yamaha MZ360 OHV 4-stroke |
| Starting system | Recoil |
| Voltage | AC: 120/240V 60 Hz |
|---|---|
| Running watts | 4500 W |
| Starting watts | 5500 W |
| Running amps (@120/240V) | 37.5/18.8 amps |
| Peaks amps (@120/240V) | 45.8/22.9 amps |
| Run time @50% load | 13.5 h |
| Run time @25% load | N/A |
| GFCI outlets | Yes |
|---|---|
| Covered outlets | No |
| Automatic Voltage Regulation | No |
| AC outlets |
|
| DC outlets | No |
| Data center | Lifetime run hours |
| Indicators | Low oil |
| Fuel tank | Metal, 6.9 gal |
| Fuel gauge | Yes |
| Weight | 221.7 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 21.9 x 29 x 31.5 in |
| Noise (lower limit) | 74.1 dBA |
| THD | Unknown |
| Emissions | CARB, EPA |
| Security | Low oil and overload protection |
| Spark arrestor | Yes |
| Neutral | Bonded to frame |
| Accessories included | Tool kit |
| Warranty | 3 years |
| Series | Industrial |
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 EF5500D 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 | Sump pump (1/2 hp) | 1050 | 2150 |
| Furnace fan (1/2 hp) | 875 | 2350 | |
| Refrigerator (energy star) | 192 | 1192 | |
| Clothes iron | 1270 | 1270 | |
| Mixer | 200 | 200 | |
| Total | 3587 W | 5062 W | |
| For camping | Radiant heater | 1300 | 1300 |
| RV refrigerator | 180 | 600 | |
| Hair dryer | 1800 | 1900 | |
| Slow cooker | 270 | 270 | |
| Pair of small speakers | 45 | 45 | |
| Total | 3595 W | 4015 W | |
| For work | Table saw | 1800 | 4500 |
| Reciprocating saw | 730 | 960 | |
| Electric fence (25 miles) | 250 | 250 | |
| Total | 2780 W | 5480 W |
Couldn't find the right answer for you? Ask your own question.
