Yamaha EF5500D - 4500/5500W Portable Generator
The Yamaha EF5500D is a portable open frame generator with a rated wattage of 4,500 W and a starting wattage of 5,500 W. (Read full specs)
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Description
POWER‑PACKED AND LOADED WITH FEATURES. The EF5500 offers the Contractor and home back up customer 5500 watts of power at a great value.
Zoom on the Yamaha EF5500D
In summary, the Yamaha EF5500D is a portable generator especially useful for:
- 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 who want to be able to deliver results, even during a power failure
Over the following sections, you'll uncover its power characteristics, the selection of outlets it offers, its overall portability, and the supplementary features it includes.
Power & Run Time
With a 358 cc Yamaha MZ360 OHV 4-stroke engine, the Yamaha EF5500D operates on gasoline, providing 120/240V, with a running wattage of 4,500W and a starting wattage of 5,500W.
With a noise rating of 74.1 dBA (just slightly more noisy than a dishwasher), the generator features a traditional recoil pull-start mechanism.
With a fuel capacity of 6.9 gallons, the EF5500D may run for around 13.5 hours at 50% load with a full tank (fuel consumption around 0.51 GPH).
Due to the relatively high THD (<7%) of the EF5500D, it is advised against using it for powering sensitive electronic devices.
Outlets
The control panel is equipped with the following 6 AC outlets:
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. Besides, equipped with a twist-lock L14-30R receptacle, the EF5500D is engineered to be transfer switch ready, enabling simple hookup to your breaker box to provide backup power for your home during blackouts.
Portability
At L29.1 x W29 x H31.5 in, the standard open frame design of the Yamaha EF5500D delivers stability alongside easy maintenance access to components and good air cooling. The featured design is ideal for the outdoors and all tough environments.
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 216.1 lbs. Still, once it is on the ground, its wheel kit and its folding handle can easily solve the issue of low mobility and allow for easy relocation of the device.
Further safety during transport, loading and unloading of the device is provided by a lift hook, which is placed on the top of the generator's frame.
Features
With a digital data center integrated into its control panel, the EF5500D provides real-time insights into the voltage and lifetime run hours, enabling easy monitoring of its status and activity.
In addition to this info, a light indicator on the device will signal if its oil levels are insufficient.
The generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.
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.
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.
In addition to the standard documentation and owner's manual (opens in a new tab) for prompt setup, Yamaha has also included a tool kit in the packaging of the EF5500D.
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).
- Weighing in at 216.1 lbs, the Yamaha EF5500D is one of the heavier generators available in the 4000-5000 rated wattage segment. If weight is a key factor for your needs, the Pulsar PGX5250BiXCO is noteworthy for being one of the top contenders in this power range, with a dry weight of 64 pounds.
- When compared to devices able to produce a similar running wattage, this generator and its lowest emitted noise of 74.1 dBA is on the noisier side. If noise emissions are important to you, one of the least noisy generators of this power range is the Yamaha EF4500iSE with only 58 dBA.
- Compared to devices of similar power, the EF5500D stands out with one of the higher run times, lasting around 13.5 hours at 50% load. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the NorthStar c5500, boasting with around 15.1 hours.
- While run time matters, it's heavily influenced by the fuel tank's capacity. Hence, it's important to consider fuel efficiency alongside. This generator doesn't excel in fuel efficiency when compared to others of its kind: it consumes approximately 0.51 GPH at a 50% load. If gasoline efficiency is at the top of your list, you may want to have a look at the WEN DF480iX, which has great fuel efficiency, with a gas consumption of only 0.27 gallons per hour.
Price comparison
As you can see from these interactive charts, 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
- CO sensor
- GFCI Outlets
- High run time
- No electric start
- On the heavy side (216.1 lbs)
- On the noisy side (74.1 dBA)
- Low fuel efficiency
Features and Specifications
| Inverter | No |
|---|---|
| Parallel capable | No |
| RV ready | No |
| Fuel | Gasoline |
| Engine | 358 cc Yamaha MZ360 OHV 4-stroke |
| Starting system | Recoil |
| Warranty | 3 years |
| Voltage | AC: 120/240V 60 Hz |
|---|---|
| Running watts | 4,500 W |
| Starting watts | 5,500 W |
| Running amps (@120/240V) | 37.5/18.8 amps |
| Peak amps (@120/240V) | 45.8/22.9 amps |
| Run time @50% load | 13.5 h |
| Run time @25% load | Unknown |
| GFCI outlets | Yes |
|---|---|
| Covered outlets | No |
| Automatic Voltage Regulation | Yes |
| AC outlets |
|
| DC outlets | No |
| Data center | Lifetime run hours and voltage |
| Indicators | Low oil |
| Fuel tank | Metal, 6.9 gal |
| Fuel gauge | Yes |
| Weight | 216.1 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 29.1 x 29 x 31.5 in |
| Noise (lower limit) | 74.1 dBA |
| THD | < 7% |
| Compliance | CARB, EPA |
| Security | Low oil and overload protection, CO monitoring |
| Spark arrestor | Yes |
| Neutral | Bonded to frame |
| Accessories included | Tool kit and wheel kit |
| Country of origin | China |
| Series | Industrial |
| Other model numbers | EF55DZ1 |
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 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 | |
| Security system | 180 | 180 | |
| Total | 3567 W | 5042 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 | |
| Drain cleaner | 250 | 250 | |
| Total | 2780 W | 5480 W |
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