May 15

Portable Generator Reviews: Generac GP5500 5500 watt Generator

When power goes out, people cannot go about their daily tasks and have issues even with basic things such as the preparation of food. I have a restaurant business in the Caribbean, where power outages are common especially during the hurricane season, and use portable generators to deal with the problem effectively. Over the year, I have gained expertise in these devices. This inspired me to assist other buyers by writing reviews of the most popular products. Read my review of the Generac GP5500 5500 Watt portable generator.

In this Generac GP5500 review, I will evaluate the features and capabilities of the device objectively and in detail. I will summarize its pros and cons after discussing who it is suitable for. After going over the conclusion, you will be in a position to make the right buying decision.

Generac GP5500 5500 watt GeneratorClick for Full Product Info Product Description

The Generac GP5500 5500 Watt portable generator uses a 389cc OHV engine with splash lubrication and a 7.2-gallon fuel tank. It is set in a steel frame and has foldable handle and never-flat wheels. It comes with 5 power outlets which come with cover. The Generac portable generator features manual and pull start, hour meter, fuel gauge and low-tone mufflers. It has circuit breakers and low-oil shutoff function. The 5500 watt generator produces 6,875 watts of surge power and 5,500 watts of continuous power. It has 10 hours of run time at 50% load.

Features of the Generac GP5500 5500 watt Generator

The design of this portable generator is fairly compact and quite sturdy. The tubular frame made from hardened steel holds all components steadily in place. The foldable handle is sufficiently large to be held with two hands. When the big never-flat wheels are added to the picture, the Generac gas generator becomes perfectly mobile. It is easy and quick to take it from one place to another. One design flaw which I should point out is that the spark plug is hard to reach without the removal of the fuel tank.

The 389cc OHV engine of Generac 5939 5500 generator pulls off great performance. It runs smoothly and effectively without interruption. The splash lubrication which it receives plays an important role for this. It extends the useful life of the engine of the entire device and this is a major advantage. The low-oil shutdown function also helps to reduce the risk of engine damage. The fuel tank is sufficiently large to match the engine with its 7.2-gallon capacity.

The five electric outlets which the Generac portable generator comes with are completely sufficient for the average household or business. Various appliances can be powered directly if needed. I appreciate the fact that the outlets are covered when not in use. This protection is truly valuable.

The manual and pull start of Generac GP5500 generator may not be as convenient as an electric one, but it actually works flawlessly. It is easy to use. You can expect it to be fully reliable in any weather. This is something which I value greatly. The hour meter is a highly convenient feature which tells you when the time for maintenance has come. The fuel gauge is a standard, but super useful feature as it helps you to avoid nasty surprises. The circuit breakers are also present on practically all modern backup generators. The important thing is that the ones on this Generac 5500 generator work flawlessly to provide overload protection.


Given that it produces 6,875 watts of peak power and 5,500 watts of continuous power, Generac 5939 GP5500 falls in the middle between the big and mid-size generators. It is fully capable of powering a fridge and a water pump at the same time. You will be able to run a heater or a fan and a TV set and lights at the same time. You can readily use it for powering a stove or for running the washing machine.

The Generac 5500 watt generator can run for 10 hours at half load without refueling. This is quite good for a model of its size. You can sleep peacefully during the night without worrying that you will not be able to use the lights or any of the plugged appliances when needed. When it comes to the noise level, the low-town mufflers certainly help to keep it down. You should not expect the noise which the device makes to interfere with your daily routines or sleep.

Who Can Use This Generac 5500 watt Generator?

Thanks to its compact size, perfect portability and fairly high wattage, this Generac gas generator is perfectly suitable for the average household. It is a reliable helper in case of a power outage. It can also be used for powering various appliances during outdoor events. Small to medium-sized businesses in most industries can also use this generator to continue their operation when the power goes out.


The benefits of Generac GP5500 5500 watt generator are:

Perfect portability – Thanks to the compact design, ergonomic handle and big wheels, this Generac portable generator is easy to move around.

Great capacity – You can power a considerable number of appliances at the same time to go on with your daily life normally.

  • Superb versatility – With this generator, it is possible to use practically any appliance found in your home.
  • Reliable performance – The device operates smoothly and effectively for as long as necessary.
  • Effective protection – The circuit breakers and the low-oil shutdown function work properly to prevent trouble.
  • Excellent durability – The steel frame, the outlet covers and the protection of the engine are among the main factors which will enable you to use this device in the long term as well as in the short one.
  • 2-year warranty from the manufacturer – This is certainly a valuable benefit given that many portable generators are covered for just one year.


The drawbacks of this Generac 5500 watt generator are:

  • Challenged spark plug maintenance – It is necessary to remove the fuel tank in order to reach this component.
  • Low-ethanol fuel is needed for optimal performance and protection – This is not a serious drawback, but you have to be careful what gasoline you use.


The verdict of this review is that the Generac GP5500 5500 watt generator is a capable and reliable performer. It is powerful and versatile enough to be used at homes and offices. The drawbacks which it has can be overcome fairly easily. It is a fine choice worth considering.

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