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Yamaha

Yamaha EF7200D 6,000 Watt Portable Generator

by

Yamaha-EF7200D

Key Features

  • Wattage (Gas): 7,200 W / 6,000 W
  • THD: < 7%
  • Noise Level: 74.5 dBA
  • Fuel Type: Gasoline
  • RV Ready: No
  • Run Time@ 25% load: Unspecified
  • Run Time@ 50% load: 12 h
  • Weight: 221.7 lbs

We are proud of our independence and have no ties to manufacturers. To maintain our objectivity, we do not accept free products. Our income is generated by advertising fees paid by retailers for qualifying purchases.

Description

The 358 cc Yamaha MZ360 OHV 4-stroke engine on the Yamaha EF7200D runs on gasoline and can put out 120/240V. It has a running power of 6,000W and a maximum power of 7,200W. This generator has a noise level of 74.5 dBA, which is just a little louder than a shower. It starts up with a traditional pull-start mechanism. With a full tank, the EF7200D can run for about 12 hours at 0.5 load and 6.9 gallons of fuel (fuel consumption is approximately 0.58 GPH). Since the EF7200D has a THD of about 7%, it shouldn’t be used to power electronics that are sensitive to noise.

Outlets

There are 6 AC outlets on the control panel: two 120V 20A (5-20R) GFCI duplexes, a 120V 30A (L5-30R) receptacle, and a 120/240V 30A (L14-30R) receptacle. With an L5-30P to TT-30R adapter, this Yamaha generator’s L5-30R receptacle makes it easy to connect it to an RV. But it’s still not ready for an RV. The EF7200D is also ready for a transfer switch because it has a twist-lock L14-30R receptacle. You can easily connect it to your breaker box to power your home when the power goes out.

Features

One of the many features of the EF7200D is its control panel, which has a data center. The data center gives you information about the lifetime run hours and voltage, which helps you keep track of its activity and status. Along with this information, a light lets you know right away if the oil level is too low. A built-in fuel gauge makes it easy and quick to check how much gas is in the generator. For safety, the generator has an automatic low oil shut-off (Oil Watch system) and an overload protection (circuit breaker), which lets you use it without worrying. The Oil Watch warning system from Yamaha gives you more peace of mind. This feature makes the car last longer because it keeps the engine from getting damaged and needing expensive repairs. When the oil gets low, the generator turns off by itself and won’t start again until more oil is added. It also has a sensor for carbon monoxide. This sensor is meant to measure the amount of carbon monoxide in the air while the generator is running. If the generator isn’t set up right and carbon monoxide levels get too high, the generator will turn off by itself. It’s a nice extra safety measure, but don’t forget to take your generator outside at all times. Yamaha packed the EF7200D with the usual paperwork and owner’s manual to get you up and running quickly, as well as a tool kit.

Mobility

The Yamaha EF7200D has a standard, open frame that is 29.1 x 29 x 31.5 inches long, 29.9 x 29 x 31.5 inches wide, and 31.5 inches high. This gives it support and lets it be lifted off the ground. This type of design is great for tough environments and heavy outdoor use. Even though this generator is technically “portable” in the sense that it can be moved, it weighs 221.7 pounds, which makes it very hard to move by hand. Still, once it’s on the ground, its wheels and folding handle make it easy to move. The device also has a lift hook on the top of its frame, which makes loading, unloading, and moving the generator safer.

Product Videos

The following charts show how some of the most important features of the Yamaha-EF7200D compare to other generators with the same power output.

**Fuel efficiency is give in relative percentage, 0 being the lowest and 1 being the highest value. Please see below specification table for actual value.

Specifications

Generic

Inverter No
Fuel efficiency 0.192 gal/kWh
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

Power

Gasoline Propane
Running watts 6,000 W n/a
Starting watts 7,200 W n/a
Running amps (@120/240V) 50/25 amps n/a
Peak amps (@120/240V) 60/30 amps n/a
Run time @50% load 12 h n/a
Run time @25% load Unspecified n/a

Control Panel

GFCI outlets Yes
Covered outlets No
Automatic Voltage Regulator Yes
AC outlets 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
DC outlets No
Data center Lifetime run hours and voltage
Indicators Low oil
Fuel tank Metal, 6.9 gal
Fuel gauge Yes

Mixed

Weight 221.7 lbs
Approx. dimen. (L x W x H) 29.1 x 29 x 31.5 in
Noise (lower limit) 74.5 dBA
THD < 7%
Compliance CARB, EPA
Security Low oil and overload protection, CO monitoring
Spark arrestor Yes
Accessories included Tool kit and wheel kit
Warranty 3 years
  • We compared more than 500 portable generators at 50% load. We found that there is “skewed right” distribution for the difference between 50% load and 25% load and the median comes at 1.43. With this number we converter all the 25% load runtime to 50% load. Same with the propane efficiency, where median is 1.38.
  • For some generators where propane runtime was not given, we used NIST 1994 GGE (Gasoline Gallon Equivalent) formula: 5.66 lbs. of propane = 1 gal of gasoline. All propane runtime is for 20 lbs. propane tank (4.7 gallons).
  • Unlike many other sites, we actually tried to find out information about each of the above requirements. However, we are human and are therefore capable of the odd oversight or mistake. Please let us know if you spot any missing or erroneous values so that we can fix them.

About the Manufacturer

The Japanese-based Yamaha Corporation, established in 1887, has a lengthy history spanning more than 130 years and has a hand in just about every sector imaginable, most notably motorbikes, musical instruments, and electronics. Many of the best portable generators are among the company’s diverse offering of goods. Many of the more recent versions, it has been said, are built in China rather than Japan.

Warranty Information

There is a warranty on the Yamaha EF7200D for up to 3 years. This warranty may not cover all parts of the generator or may only cover certain parts. Yamaha’s warranty policies can tell you more about how long the warranty on a Yamaha generator lasts. You can also call their customer service line at 1-800-962-7926. Check Yamaha Website for more information.

Yamaha EF7200DE 6,000 Watt Portable Generator

by

Yamaha-EF7200DE

Key Features

  • Wattage (Gas): 7,200 W / 6,000 W
  • THD: < 7%
  • Noise Level: 74.5 dBA
  • Fuel Type: Gasoline
  • RV Ready: No
  • Run Time@ 25% load: Unspecified
  • Run Time@ 50% load: 12 h
  • Weight: 245.7 lbs

We are proud of our independence and have no ties to manufacturers. To maintain our objectivity, we do not accept free products. Our income is generated by advertising fees paid by retailers for qualifying purchases.

Description

The Yamaha EF7200DE is made with a 358 cc Yamaha MZ360 OHV 4-stroke engine that runs on gasoline. It has an output voltage of 120/240V and a running wattage of 6,000W and a peak wattage of 7,200W. The generator can make up to 74.5 dBA of noise (slightly noisier than running a dishwasher It has both a simple pull-start mechanism and an electric starter that is easy to use and convenient (battery included). With a full tank, the EF7200DE can run for about 12 hours at 0.5 load and 6.9 gallons of fuel (fuel consumption is approximately 0.58 GPH). Due to its relatively high THD (7%), the EF7200DE is not a good choice to power sensitive electronics.

Outlets

There are 6 AC outlets on the control panel: two 120V 20A (5-20R) GFCI duplexes, a 120V 30A (L5-30R) receptacle, and a 120/240V 30A (L14-30R) receptacle. Even though this Yamaha generator isn’t quite RV Ready, an L5-30P to TT-30R adapter makes it easy to connect it to an RV. The EF7200DE is also transfer switch ready because it has a twist-lock L14-30R receptacle. You can easily connect it to your breaker box to power your home when the power goes out.

Features

The EF7200DE’s status and activity can be tracked with the help of a digital data center. This part of the control panel shows information about the voltage and the number of hours it has been running. In addition to this, the featured light indicator will let you know when the oil level is too low. The generator has a built-in fuel gauge that makes it quick, easy, and convenient to find out how much gas is in it. From a safety point of view, the product has an overload protection (circuit breaker) and an automatic low oil shut-off (Oil Watch system), so you can use it without worrying. The Oil Watch warning system from Yamaha gives you more peace of mind. This feature makes the car last longer because it keeps the engine from getting damaged and needing expensive repairs. When the oil gets low, the generator turns off by itself and won’t start again until more oil is added. It also has a sensor for carbon monoxide. This sensor is meant to measure the amount of carbon monoxide in the air while the generator is running. If the generator isn’t set up right and carbon monoxide levels get too high, the generator will turn off by itself. It’s a nice extra safety measure, but don’t forget to take your generator outside at all times. Yamaha packed the EF7200DE with the usual paperwork and owner’s manual to get you up and running quickly, as well as a tool kit.

Mobility

The Yamaha EF7200DE is 29.1 inches long, 29 inches wide, and 31.5 inches tall. It has a typical open frame design that makes it stable and allows it to be raised above ground level. This type of design is great for tough environments and heavy outdoor use. The generator is technically “portable” in the sense that it can be moved, but at 245.7 lbs., it may be hard to move it by hand. But its wheels and folding handle make it easier to move once it’s on the floor. A lift hook on the top of the generator’s frame adds another layer of safety when moving, loading, or unloading the device.

Product Videos

The following charts show how some of the most important features of the Yamaha-EF7200DE compare to other generators with the same power output.

**Fuel efficiency is give in relative percentage, 0 being the lowest and 1 being the highest value. Please see below specification table for actual value.

Specifications

Generic

Inverter No
Fuel efficiency 0.192 gal/kWh
Parallel capable No
RV ready No
Fuel Gasoline
Engine 358 cc Yamaha MZ360 OHV 4-stroke
Starting system Recoil, Electric
Voltage AC: 120/240V 60 Hz

Power

Gasoline Propane
Running watts 6,000 W n/a
Starting watts 7,200 W n/a
Running amps (@120/240V) 50/25 amps n/a
Peak amps (@120/240V) 60/30 amps n/a
Run time @50% load 12 h n/a
Run time @25% load Unspecified n/a

Control Panel

GFCI outlets Yes
Covered outlets No
Automatic Voltage Regulator Yes
AC outlets 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
DC outlets No
Data center Lifetime run hours and voltage
Indicators Low oil
Fuel tank Metal, 6.9 gal
Fuel gauge Yes

Mixed

Weight 245.7 lbs
Approx. dimen. (L x W x H) 29.1 x 29 x 31.5 in
Noise (lower limit) 74.5 dBA
THD < 7%
Compliance CARB, EPA
Security Low oil and overload protection, CO monitoring
Spark arrestor Yes
Accessories included Tool kit, battery, and wheel kit
Warranty 3 years
  • We compared more than 500 portable generators at 50% load. We found that there is “skewed right” distribution for the difference between 50% load and 25% load and the median comes at 1.43. With this number we converter all the 25% load runtime to 50% load. Same with the propane efficiency, where median is 1.38.
  • For some generators where propane runtime was not given, we used NIST 1994 GGE (Gasoline Gallon Equivalent) formula: 5.66 lbs. of propane = 1 gal of gasoline. All propane runtime is for 20 lbs. propane tank (4.7 gallons).
  • Unlike many other sites, we actually tried to find out information about each of the above requirements. However, we are human and are therefore capable of the odd oversight or mistake. Please let us know if you spot any missing or erroneous values so that we can fix them.

About the Manufacturer

The Japanese-based Yamaha Corporation, established in 1887, has a lengthy history spanning more than 130 years and has a hand in just about every sector imaginable, most notably motorbikes, musical instruments, and electronics. Many of the best portable generators are among the company’s diverse offering of goods. Many of the more recent versions, it has been said, are built in China rather than Japan.

Warranty Information

There is a warranty on the Yamaha EF7200DE for up to 3 years. This warranty may not cover all parts of the generator or may only cover certain parts. Yamaha’s warranty policies can tell you more about how long the warranty on a Yamaha generator lasts. You can also call their customer service line at 1-800-962-7926. Check Yamaha Website for more information.

Yamaha EF6300iSDE 5,500 Watt Inverter Generator

by

Yamaha-EF6300iSDE

Key Features

  • Wattage (Gas): 6,300 W / 5,500 W
  • THD: < 4%
  • Noise Level: 58 dBA
  • Fuel Type: Gasoline
  • RV Ready: No
  • Run Time@ 25% load: 13.3 h
  • Run Time@ 50% load: Unspecified
  • Weight: 200 lbs

We are proud of our independence and have no ties to manufacturers. To maintain our objectivity, we do not accept free products. Our income is generated by advertising fees paid by retailers for qualifying purchases.

Description

The 357 cc Yamaha MZ360 OHV 4-stroke engine on the Yamaha EF6300iSDE runs on gasoline and can put out 120/240V. It has a running power of 5,500W and a maximum power of 6,300W. The electric starter on the inverter generator is convenient and easy to use (battery included). It has a noise level of 58 dBA (The noise level is lower than that of a refrigerator). Yamaha’s Smart ThrottleTM is built into this generator. This load-sensing feature automatically changes the speed of the engine to match how much it is being used. This saves fuel and reduces noise. Due to its 4.5-gallon fuel tank, the EF6300iSDE can run for up to 13.3 hours on a full tank (using about 0.34 GPH of fuel). The EF6300iSDE makes a clean sine wave with a Total Harmonic Distortion of less than 4%, so it’s safe to plug sensitive electronics into AC outlets (THD).

Outlets

The control panel has 4 AC outlets: a 120V 20A (5-20R) GFCI duplex outlet, a 120V 30A (L5-30R) receptacle, and a 120/240V 30A (L14-30R) receptacle. Even though this Yamaha generator isn’t RV Ready, an L5-30P to TT-30R adapter can be used to connect it to a simple RV. The EF6300iSDE is also ready for a transfer switch because it has a twist-lock L14-30R receptacle. If the power goes out, you can easily connect it to a breaker box and keep your home running.

Features

The EF6300iSDE’s control panel has a digital data center that tells you about the power output and lifetime run hours. This lets you keep an eye on the machine’s status and activity. On top of this, the device’s lights will show if the generator is overloaded, if it is ready, or if the oil level is too low. The inverter generator has a built-in fuel gauge that makes it easy and quick to check the fuel level. As for safety features, the device has a circuit breaker for overheating and an Oil Watch system that turns it off automatically when the oil level gets too low, so you can use it without worrying. The Oil Watch warning system from Yamaha gives you more peace of mind. This feature makes the car last longer because it keeps the engine from getting damaged and needing expensive repairs. When the oil gets low, the generator turns off by itself and won’t start again until more oil is added. It also has a sensor for carbon monoxide. This sensor is meant to measure the amount of carbon monoxide in the air while the generator is running. If the generator isn’t set up right and carbon monoxide levels get too high, the generator will turn off by itself. It’s a nice extra safety measure, but don’t forget to take your generator outside at all times. In addition to the features we’ve already talked about, the Yamaha EF6300iSDE comes with standard documentation and an owner’s manual to help you get started right away. You can buy a storage cover from the company separately.

Mobility

The encased inverter generator design of the Yamaha EF6300iSDE (L30.7 x W24.3 x H27.2 in) makes it look better than any ordinary open frame product. The goal of this modern design is to give recreational users the best way to get power. Even though this device is technically portable (meaning it can be moved), it weighs 200 pounds and can be hard to move and use without special tools. But its 4 wheels and double handle make it easier to move once it’s on the floor.

Product Videos

The following charts show how some of the most important features of the Yamaha-EF6300iSDE compare to other generators with the same power output.

**Fuel efficiency is give in relative percentage, 0 being the lowest and 1 being the highest value. Please see below specification table for actual value.

Specifications

Generic

Inverter Yes
Fuel efficiency 0.176 gal/kWh
Parallel capable No
RV ready No
Fuel Gasoline
Engine 357 cc Yamaha MZ360 OHV 4-stroke
Starting system Electric
Voltage AC: 120/240V 60 Hz

Power

Gasoline Propane
Running watts 5,500 W n/a
Starting watts 6,300 W n/a
Running amps (@120/240V) 45.8/22.9 amps n/a
Peak amps (@120/240V) 52.5/26.3 amps n/a
Run time @50% load Unspecified n/a
Run time @25% load 13.3 h n/a

Control Panel

GFCI outlets Yes
Covered outlets No
Automatic Voltage Regulator Inverter
AC outlets 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
DC outlets No
Data center Power output and lifetime run hours
Indicators Low oil, overload and output ready
Fuel tank Plastic, 4.5 gal
Fuel gauge Yes

Mixed

Weight 200 lbs
Approx. dimen. (L x W x H) 30.7 x 24.3 x 27.2 in
Noise (lower limit) 58 dBA
THD < 4%
Compliance CARB, EPA
Security Low oil and overload protection, CO monitoring
Spark arrestor Yes
Accessories included Battery
Warranty 3 years
  • We compared more than 500 portable generators at 50% load. We found that there is “skewed right” distribution for the difference between 50% load and 25% load and the median comes at 1.43. With this number we converter all the 25% load runtime to 50% load. Same with the propane efficiency, where median is 1.38.
  • For some generators where propane runtime was not given, we used NIST 1994 GGE (Gasoline Gallon Equivalent) formula: 5.66 lbs. of propane = 1 gal of gasoline. All propane runtime is for 20 lbs. propane tank (4.7 gallons).
  • Unlike many other sites, we actually tried to find out information about each of the above requirements. However, we are human and are therefore capable of the odd oversight or mistake. Please let us know if you spot any missing or erroneous values so that we can fix them.

About the Manufacturer

The Japanese-based Yamaha Corporation, established in 1887, has a lengthy history spanning more than 130 years and has a hand in just about every sector imaginable, most notably motorbikes, musical instruments, and electronics. Many of the best portable generators are among the company’s diverse offering of goods. Many of the more recent versions, it has been said, are built in China rather than Japan.

Warranty Information

A warranty covers the Yamaha EF6300iSDE for up to 3 years. This warranty may not cover all parts of the generator or may only cover certain parts. Yamaha’s warranty policies can tell you more about how long the warranty on a Yamaha generator lasts. You can also call their customer service line at 1-800-962-7926. Check Yamaha Website for more information.

Yamaha EF5500D 4,500 Watt Portable Generator

by

Yamaha-EF5500D

Key Features

  • Wattage (Gas): 5,500 W / 4,500 W
  • THD: < 7%
  • Noise Level: 74.1 dBA
  • Fuel Type: Gasoline
  • RV Ready: No
  • Run Time@ 25% load: Unspecified
  • Run Time@ 50% load: 13.5 h
  • Weight: 216.1 lbs

We are proud of our independence and have no ties to manufacturers. To maintain our objectivity, we do not accept free products. Our income is generated by advertising fees paid by retailers for qualifying purchases.

Description

The 358 cc Yamaha MZ360 OHV 4-stroke engine on the Yamaha EF5500D runs on gasoline and can put out 120/240V. It has a running power of 4,500W and a maximum power of 5,500W. This generator has a noise level of 74.1 dBA, which is just a little louder than a vacuum cleaner. It starts up with a traditional pull-start mechanism. With a full tank, the EF5500D can run for about 13.5 hours at 0.5 load if it has 6.9 gallons of fuel (fuel consumption is approximately 0.51 GPH). Since the EF5500D has a THD of about 7%, it is best not to use it to power electronics that are sensitive to noise.

Outlets

There are 6 AC outlets on the control panel: two 120V 20A (5-20R) GFCI duplexes, a 120V 30A (L5-30R) receptacle, and a 120/240V 30A (L14-30R) receptacle. Even though this Yamaha generator isn’t RV Ready, an L5-30P to TT-30R adapter can be used to connect it to a simple RV. The EF5500D is also ready for a transfer switch because it has a twist-lock L14-30R receptacle. If the power goes out, you can easily connect it to a breaker box and keep your home running.

Features

The EF5500D’s status and activity can be tracked with the help of a digital data center. This part of the control panel shows information about the voltage and the number of hours it has been running. In addition to this information, there is a light that lets you know when the oil level is too low. A built-in fuel gauge makes it easy and quick to check how much gas is in the generator. In terms of safety, the generator can be used without worry because it has a circuit breaker for overheating and an automatic shut-off when the oil level gets too low ( Oil Watch system). The Oil Watch warning system from Yamaha gives you more peace of mind. This feature makes the car last longer because it keeps the engine from getting damaged and needing expensive repairs. When the oil gets low, the generator turns off by itself and won’t start again until more oil is added. It also has a sensor for carbon monoxide. This sensor is meant to measure the amount of carbon monoxide in the air while the generator is running. If the generator isn’t set up right and carbon monoxide levels get too high, the generator will turn off by itself. It’s a nice extra safety measure, but don’t forget to take your generator outside at all times. Yamaha packed the EF5500D with the usual paperwork and owner’s manual to get you up and running quickly, as well as a tool kit.

Mobility

The Yamaha EF5500D is 29.1 inches long, 29 inches wide, and 31.5 inches high. Together with its traditional, open-frame design, they support the generator and allow it to be raised above the ground. This type of design is great for tough environments and heavy outdoor use. Even though this device is technically portable (meaning it can be moved), it can be hard to move and use it without special tools because it weighs 216.1 pounds. Still, the generator is easy to move once it’s on the ground, thanks to its wheel kit and folding handle, which is a good way to make up for its lack of maneuverability. The device also has a lift hook on the top of its frame, which makes loading, unloading, and moving the generator safer.

Product Videos

The following charts show how some of the most important features of the Yamaha-EF5500D compare to other generators with the same power output.

**Fuel efficiency is give in relative percentage, 0 being the lowest and 1 being the highest value. Please see below specification table for actual value.

Specifications

Generic

Inverter No
Fuel efficiency 0.227 gal/kWh
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

Power

Gasoline Propane
Running watts 4,500 W n/a
Starting watts 5,500 W n/a
Running amps (@120/240V) 37.5/18.8 amps n/a
Peak amps (@120/240V) 45.8/22.9 amps n/a
Run time @50% load 13.5 h n/a
Run time @25% load Unspecified n/a

Control Panel

GFCI outlets Yes
Covered outlets No
Automatic Voltage Regulator Yes
AC outlets 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
DC outlets No
Data center Lifetime run hours and voltage
Indicators Low oil
Fuel tank Metal, 6.9 gal
Fuel gauge Yes

Mixed

Weight 216.1 lbs
Approx. dimen. (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
Accessories included Tool kit and wheel kit
Warranty 3 years
  • We compared more than 500 portable generators at 50% load. We found that there is “skewed right” distribution for the difference between 50% load and 25% load and the median comes at 1.43. With this number we converter all the 25% load runtime to 50% load. Same with the propane efficiency, where median is 1.38.
  • For some generators where propane runtime was not given, we used NIST 1994 GGE (Gasoline Gallon Equivalent) formula: 5.66 lbs. of propane = 1 gal of gasoline. All propane runtime is for 20 lbs. propane tank (4.7 gallons).
  • Unlike many other sites, we actually tried to find out information about each of the above requirements. However, we are human and are therefore capable of the odd oversight or mistake. Please let us know if you spot any missing or erroneous values so that we can fix them.

About the Manufacturer

The Japanese-based Yamaha Corporation, established in 1887, has a lengthy history spanning more than 130 years and has a hand in just about every sector imaginable, most notably motorbikes, musical instruments, and electronics. Many of the best portable generators are among the company’s diverse offering of goods. Many of the more recent versions, it has been said, are built in China rather than Japan.

Warranty Information

There is a warranty on the Yamaha EF5500D for up to 3 years. This warranty may not cover all parts of the generator or may only cover certain parts. Yamaha’s warranty policies can tell you more about how long the warranty on a Yamaha generator lasts. You can also call their customer service line at 1-800-962-7926. Check Yamaha Website for more information.

Yamaha EF5500DE 4,500 Watt Portable Generator

by

Yamaha-EF5500DE

Key Features

  • Wattage (Gas): 5,500 W / 4,500 W
  • THD: < 7%
  • Noise Level: 74.1 dBA
  • Fuel Type: Gasoline
  • RV Ready: No
  • Run Time@ 25% load: Unspecified
  • Run Time@ 50% load: 13.5 h
  • Weight: 238.1 lbs

We are proud of our independence and have no ties to manufacturers. To maintain our objectivity, we do not accept free products. Our income is generated by advertising fees paid by retailers for qualifying purchases.

Description

The 358 cc Yamaha MZ360 OHV 4-stroke engine, which runs on gasoline, is the heart of the Yamaha EF5500DE. It has a 120V/240V output and a running power of 4,500W and a peak power of 5,500W. The noise level of this generator is 74.1 dBA, which is just a little louder than a shower. It can be started with a pull-start mechanism or an easy-to-use electric starter (battery included). With a full tank, the EF5500DE can run for about 13.5 hours at 0.5 load and 6.9 gallons of fuel (fuel consumption is approximately 0.51 GPH). The THD (7%) of the EF5500DE is too high for it to be used to power sensitive electronic devices.

Outlets

There are 6 AC outlets on the control panel: two 120V 20A (5-20R) GFCI duplexes, a 120V 30A (L5-30R) receptacle, and a 120/240V 30A (L14-30R) receptacle. This Yamaha generator isn’t quite RV Ready, but it has an L5-30R receptacle that makes it easy to connect to an RV with an L5-30P to TT-30R adapter. Also, the EF5500DE has a twist-lock L14-30R receptacle, which makes it ready for a transfer switch. It can power your home during a power outage because it is easy to connect to your breaker box.

Features

One of the many features of the EF5500DE is its control panel, which has a data center. The data center gives you information about the lifetime run hours and voltage, which helps you keep track of its activity and status. In addition to this information, a light shows you if the oil level is too low. The generator has a built-in fuel gauge that makes it quick, easy, and convenient to check how much gas is in it. As far as safety goes, you can use the generator without worry because it has an automatic shut-off for low oil (Oil Watch system) and an overload protection (circuit breaker). The Oil Watch warning system from Yamaha gives you more peace of mind. This feature makes the car last longer because it keeps the engine from getting damaged and needing expensive repairs. When the oil gets low, the generator turns off by itself and won’t start again until more oil is added. It also has a sensor for carbon monoxide. This sensor is meant to measure the amount of carbon monoxide in the air while the generator is running. If the generator isn’t set up right and carbon monoxide levels get too high, the generator will turn off by itself. It’s a nice extra safety measure, but don’t forget to take your generator outside at all times. Yamaha packed the EF5500DE with the usual paperwork and owner’s manual to get you up and running quickly, as well as a tool kit.

Mobility

The Yamaha EF5500DE is 29.1 inches long, 29 inches wide, and 31.5 inches high. Together with its traditional, open-frame design, they support the generator and allow it to be raised above the ground. The design works well in rough places and for hard outdoor use. The generator is technically “portable” in the sense that you can move it, but at 238.1 lbs., it may be hard to move it by hand. But its wheel kit and folding handle make it easy to move once it’s on the ground, which makes up for its lack of maneuverability. A lift hook on the top of the generator’s frame adds another layer of safety when moving, loading, or unloading the device.

Product Videos

The following charts show how some of the most important features of the Yamaha-EF5500DE compare to other generators with the same power output.

**Fuel efficiency is give in relative percentage, 0 being the lowest and 1 being the highest value. Please see below specification table for actual value.

Specifications

Generic

Inverter No
Fuel efficiency 0.227 gal/kWh
Parallel capable No
RV ready No
Fuel Gasoline
Engine 358 cc Yamaha MZ360 OHV 4-stroke
Starting system Recoil, Electric
Voltage AC: 120/240V 60 Hz

Power

Gasoline Propane
Running watts 4,500 W n/a
Starting watts 5,500 W n/a
Running amps (@120/240V) 37.5/18.8 amps n/a
Peak amps (@120/240V) 45.8/22.9 amps n/a
Run time @50% load 13.5 h n/a
Run time @25% load Unspecified n/a

Control Panel

GFCI outlets Yes
Covered outlets No
Automatic Voltage Regulator Yes
AC outlets 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
DC outlets No
Data center Lifetime run hours and voltage
Indicators Low oil
Fuel tank Metal, 6.9 gal
Fuel gauge Yes

Mixed

Weight 238.1 lbs
Approx. dimen. (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
Accessories included Tool kit, battery, and wheel kit
Warranty 3 years
  • We compared more than 500 portable generators at 50% load. We found that there is “skewed right” distribution for the difference between 50% load and 25% load and the median comes at 1.43. With this number we converter all the 25% load runtime to 50% load. Same with the propane efficiency, where median is 1.38.
  • For some generators where propane runtime was not given, we used NIST 1994 GGE (Gasoline Gallon Equivalent) formula: 5.66 lbs. of propane = 1 gal of gasoline. All propane runtime is for 20 lbs. propane tank (4.7 gallons).
  • Unlike many other sites, we actually tried to find out information about each of the above requirements. However, we are human and are therefore capable of the odd oversight or mistake. Please let us know if you spot any missing or erroneous values so that we can fix them.

About the Manufacturer

The Japanese-based Yamaha Corporation, established in 1887, has a lengthy history spanning more than 130 years and has a hand in just about every sector imaginable, most notably motorbikes, musical instruments, and electronics. Many of the best portable generators are among the company’s diverse offering of goods. Many of the more recent versions, it has been said, are built in China rather than Japan.

Warranty Information

A warranty covers the Yamaha EF5500DE for up to 3 years. This warranty may not cover all parts of the generator or may only cover certain parts. Yamaha’s warranty policies can tell you more about how long the warranty on a Yamaha generator lasts. You can also call their customer service line at 1-800-962-7926. Check Yamaha Website for more information.

Yamaha EF4500iSE 4,000 Watt Inverter Generator

by

Yamaha-EF4500iSE

Key Features

  • Wattage (Gas): 4,500 W / 4,000 W
  • THD: < 3%
  • Noise Level: 58 dBA
  • Fuel Type: Gasoline
  • RV Ready: No
  • Run Time@ 25% load: 15.2 h
  • Run Time@ 50% load: Unspecified
  • Weight: 194 lbs

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Description

A 357 cc Yamaha MZ360 OHV 4-stroke engine powers the Yamaha EF4500iSE. It runs on gasoline and has a running wattage of 4,000W and a peak wattage of 4,500W. It gives off 120V. This inverter generator has a noise level of 58 dBA, which is quieter than rain. An electric starter makes it easy to get it going (battery included). Yamaha’s Smart ThrottleTM is built into this generator. This load-sensing feature automatically changes the speed of the engine to match how much it is being used. This saves fuel and reduces noise. The EF4500iSE can run for up to 15.2 hours on a full tank of fuel, which is 4.5 gallons (fuel consumption is approximately 0.3 GPH). The EF4500iSE makes a clean sine wave with a Total Harmonic Distortion of less than 3%, so it’s safe to plug sensitive electronics into AC outlets (THD).

Outlets

The control panel has 3 AC outlets: a duplex 120V 20A (5-20R) receptacle, a 120V 30A (L5-30R) receptacle, and a 120V 20A (5-20R) receptacle. This Yamaha generator isn’t quite RV Ready, but it has an L5-30R receptacle that makes it easy to connect to an RV with an L5-30P to TT-30R adapter.

Features

The EF4500iSE’s control panel has a digital data center that tells you how long it has been running and how much power it is putting out. This helps you keep track of its status and activity. In addition to this information, the generator has a number of lights that tell you when it is ready, when it is overloaded, and when the oil level is too low. The inverter generator has a built-in fuel gauge that makes it quick, easy, and convenient to find out how much gas is in it. As for safety features, the device has a circuit breaker for overheating and an Oil Watch system that turns it off automatically when the oil level gets too low, so you can use it without worrying. The Oil Watch warning system from Yamaha gives you more peace of mind. This feature makes the car last longer because it keeps the engine from getting damaged and needing expensive repairs. When the oil gets low, the generator turns off by itself and won’t start again until more oil is added. It also has a sensor for carbon monoxide. This sensor is meant to measure the amount of carbon monoxide in the air while the generator is running. If the generator isn’t set up right and carbon monoxide levels get too high, the generator will turn off by itself. It’s a nice extra safety measure, but don’t forget to take your generator outside at all times. Aside from the features we’ve already talked about, the Yamaha EF4500iSE also comes with the basic paperwork and an owner’s manual, so you can start using it right away. You can buy a storage cover from the company separately.

Mobility

Since the Yamaha EF4500iSE is an inverter generator, its enclosed design (L30.7 x W24.3 x H27.8 in) looks better than a traditional open frame product. The generator has a modern look and is easy to use when generating power for fun. The generator is technically “portable” in the sense that it can be moved, but at 194 pounds, it may be hard to move it by hand. Still, the generator is easy to move once it’s on the ground because it has 4 wheels and a double handle, which makes up for the fact that it’s not very maneuverable.

Product Videos

The following charts show how some of the most important features of the Yamaha-EF4500iSE compare to other generators with the same power output.

**Fuel efficiency is give in relative percentage, 0 being the lowest and 1 being the highest value. Please see below specification table for actual value.

Specifications

Generic

Inverter Yes
Fuel efficiency 0.212 gal/kWh
Parallel capable No
RV ready No
Fuel Gasoline
Engine 357 cc Yamaha MZ360 OHV 4-stroke
Starting system Electric
Voltage AC: 120V 60 Hz

Power

Gasoline Propane
Running watts 4,000 W n/a
Starting watts 4,500 W n/a
Running amps (@120/240V) 33.3 amps n/a
Peak amps (@120/240V) 37.5 amps n/a
Run time @50% load Unspecified n/a
Run time @25% load 15.2 h n/a

Control Panel

GFCI outlets No
Covered outlets No
Automatic Voltage Regulator Inverter
AC outlets 1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R)
DC outlets No
Data center Power output and lifetime run hours
Indicators Low oil, overload and output ready
Fuel tank Plastic, 4.5 gal
Fuel gauge Yes

Mixed

Weight 194 lbs
Approx. dimen. (L x W x H) 30.7 x 24.3 x 27.8 in
Noise (lower limit) 58 dBA
THD < 3%
Compliance CARB, EPA
Security Low oil and overload protection, CO monitoring
Spark arrestor Yes
Accessories included Battery
Warranty 3 years
  • We compared more than 500 portable generators at 50% load. We found that there is “skewed right” distribution for the difference between 50% load and 25% load and the median comes at 1.43. With this number we converter all the 25% load runtime to 50% load. Same with the propane efficiency, where median is 1.38.
  • For some generators where propane runtime was not given, we used NIST 1994 GGE (Gasoline Gallon Equivalent) formula: 5.66 lbs. of propane = 1 gal of gasoline. All propane runtime is for 20 lbs. propane tank (4.7 gallons).
  • Unlike many other sites, we actually tried to find out information about each of the above requirements. However, we are human and are therefore capable of the odd oversight or mistake. Please let us know if you spot any missing or erroneous values so that we can fix them.

About the Manufacturer

The Japanese-based Yamaha Corporation, established in 1887, has a lengthy history spanning more than 130 years and has a hand in just about every sector imaginable, most notably motorbikes, musical instruments, and electronics. Many of the best portable generators are among the company’s diverse offering of goods. Many of the more recent versions, it has been said, are built in China rather than Japan.

Warranty Information

There is a warranty on the Yamaha EF4500iSE for up to 3 years. This warranty may not cover all parts of the generator or may only cover certain parts. Yamaha’s warranty policies can tell you more about how long the warranty on a Yamaha generator lasts. You can also call their customer service line at 1-800-962-7926. Check Yamaha Website for more information.

Energy Sonar