Best Generac 8000 Watt Generator Available Today

Ian Mutuli
Updated on
Ian Mutuli

Ian Mutuli

Founder and Managing Editor of Archute. He is also a graduate architect from The University of Nairobi, Kenya.
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A Generac 8000-watt generator can power almost everything in your house, including your refrigerator, microwave, coffee machine, television, lights, and even your stove. If you carefully regulate the load, you might even use a Generac 8000-watt generator as a whole house generator because it will offer enough electricity to run just about everything in your house.

A Generac portable generator is useful for various tasks at home, at business, and on the go. A Generac 8000-watt generator can supply essential backup emergency power. In addition, it improves the comfort of camping and tailgating. Contractors value the versatility that portable electricity provides on the job site.

During a power outage or outdoor leisure activities like RV camping, a Generac 8000-watt generator can meet many of your power needs. Generators are also a good choice for powering heavy-duty machinery on construction sites. We'll review the Generac 8000 watt generator in this article.

How Long Do Generators last?

Make sure to do regular maintenance on your generator, such as changing any oil filters and oil, during periods of inactivity to ensure you get the most out of your generator. In addition, replace the starter plugs and air filters. These techniques ensure that you get the most out of it.

The majority of portable generators have a runtime of 95 to 105 hours. Different models produce different results, so check the manufacturer's website or the product packing for details. Because the oil in diesel engine generators might deteriorate, they last longer. However, they necessitate larger filters and oil tanks, increasing the time used.

Oil checks should still be done regularly, especially if you frequently use this generator type. To maximize capabilities, be careful not to put in more oil than the machine requires and know how long power outages last in your location. With good maintenance, these machines will run for a total of 195 to 205 hours per use.

Generac 7715 GP8000E 8,000-Watt Gas-Powered Portable Generator

Generac 7715 GP8000E 8,000-Watt Gas-Powered Portable...
  • Powerful Performance: With Generac's PowerRush Advanced...
  • Convenient Electric Start: Say goodbye to manual cranking. The...
  • Extended Runtime: The GP8000E boasts a long-lasting OHV engine...
  • Smart and Reliable: Integrated COsense technology provides...
  • Maintenance Made Easy: Keep your generator in top shape with the...

The Generac 7715 GP8000E 8,000-Watt Gas-Powered Portable Generator is one of the sturdy, mid-range generators meant for handling heavy loads while being somewhat portable and convenient. Generac is well known for its dependability and the GP8000E is a resilient product for any power requirement be it emergency home power, power at a work site or event. Here is a close look at what is great about this model, as well as where it might benefit from some improvements.

Overview & Key Features

Now the Generac 7715 GP8000E comes with the 8,000 running watts/ 10,000 watts of starting power and amongst all the available portable generators, it comfortably falls in the middle to the upper range of these generators. Here are some standout features that contribute to its popularity:

Electric Start: The lever that is located on the right side of the GP8000E is one of the biggest conveniences of this model. No more fiddling with a pull cord when outside in the freezing cold or in the middle of the night. One requires just a push of a button to start the generator which is perfect especially for those who seek to use a simple machine.

PowerRush Technology: The smart control PowerRush feature on Generac raises the starting power output 30% higher than normal, and supports load shedding where one has to turn on several appliances at once. It is also very useful in instances where you have equipment with high inrush current that you want to operate.

Large Fuel Tank: There is the kind of inventive detailing that we have seen in portable generators; the generator has a 7.9-gallon fuel tank it comes with up to 11 hours of run time at 50% load. This makes it ideal for long term use whether for home power backup, or in cases where one is working at a site.

Durable Build & Portable Frame: Made with a strong steel build and featuring never-flat wheels and fold down handle, the GP800E is shock proof but easy to operate on all types of terrains.

Outlets & Connectivity: There are several outlet choices, four of them 120V 20A GFCI and a 120/240V 30A locking receptacle for safe use with many kinds of loads.

Performance & Power Delivery

When it comes to power, the GP8000E delivers consistent and reliable output. It’s designed to handle most household essentials during an outage, including refrigerators, sump pumps, lights, and a few smaller electronics. The 8,000 running watts means it can power multiple devices at once without a struggle. Whether you’re running an AC unit, refrigerator, or powering up a small construction site, this generator provides ample capacity without frequent overloads.

PowerRush Technology significantly aids in managing the starting load, which is a big plus if you need to run power-hungry tools. It provides a buffer that prevents tripping breakers when a device demands a sudden power surge. This makes it a great generator for contractors who need dependable equipment that won’t quit under pressure.

Usability & Design

In terms of usability, the GP8000E excels in a few areas:

User-Friendly Electric Start: Electric start is a big plus, although that means that the battery must be recharged from time to time. It is so much easier to start the generator and it's beneficial for those who are not strong enough to pull the starter rope.

Easy Maneuverability: It has a weight of nearly 198 pounds, which means that it cannot be described as compact, yet the wheels do not go flat and the handle folds to help in transporting it. Unlike many other heavy-duty generators, this one is easier to transport, and that makes it ideal for use in homes or at the workplace.

Clear Instructions & Assembly: The assembly process is quite simple and the generator contains easy to follow instructions. It is relative easy to set up if one has prior experience with power tools or equipment. If not, you might need some help. 

Noise Levels: The generator is not exactly silent, but it is also not very noisy for the given power class of the device. The working noise level is reasonable and is approximately the same as the noise level of similar models. It is recognizable but not entirely loud and the noise levels are simply comparable to what you will find in an 8,000-watt generator.

Fuel Efficiency & Maintenance

The GP8000E is highly fuel consumptive for this class of generator but it is not especially bad given its capacity. A full tank can supply power for as long as 11 hours at 50% electricity consumption, which is great news for folks who’d want to run multiple appliances at night without having to buy gasoline. But do not forget, that it will become slower if you overburden the runtime to its maximum potential.

As for the maintenance, it is not very complicated – just pretty standard. The maintenance matters that should not be missed include checking the oil level, the air filter, and ensuring the battery is charged for the electric start. The hour meter is useful because it lets you know when it is time for an oil change or other maintenance, so it does not get overlooked.

Pros:

  • Fold-down handle for easy storage
  • Steel fuel tank with a large capacity
  • 8,000 running watts and 10,000 starting watts provide plenty of power for most situations.
  • Durable construction with a solid steel frame
  • Given its power, features, and durability, the price is competitive for what you get.
  • The built-in hour meter provides reminders for routine maintenance.

Cons:

  • Weighing around 200 pounds, it’s not easily portable without the wheels and handle.
  • It produces noticeable noise, which may not be suitable for quiet environments.
  • Requires periodic maintenance to ensure the battery remains charged.
  • Lacks a built-in carbon monoxide sensor, which is a critical safety feature in newer models.

What to Lookout for When Buying A Portable Generator

1. Outlets and Power

The first step in choosing the best generator for your needs is figuring out how big you need it to be. That means you'll have to figure out how much power you'll need. What happens if your refrigerator only needs 700 watts to run, but it needs 2100 watts to startup?

Consider the startup watts required to power the equipment you intend to connect to the generator, as well as the "running watts" required once everything is up and running. A few 120V AC outlets and USB connectors are common on smaller inverter generators.

When you approach 4000 watts, you'll notice that there are more 240V plugs and 120V outlets. So if you want an electrician to connect your generator directly to your electrical panel, you'll need a 240V plug. Also, because your generator is used outside, be sure it includes GFCI outlets (Ground Fault Circuit Interrupter).

2. Total Harmonic Distortion (THD)

The waveform is important if you plan to run electronic devices like laptops or lab equipment. It is advisable to aim for a total harmonic distortion of less than 6% to avoid harming electrical circuits. It's also known as "clean power" or "pure sine wave," and it's a more steady and predictable voltage level.

Pure sine wave generators are more expensive and can be found in lower-wattage devices. By the way, not all battery inverters have low THD. Some produce square waves. If you know you'll require clean power, look at the specifications.

3. Is it used regularly or only on occasion?

Most generators come with a consumer warranty that covers you for several years. Any reputable brand will work for emergency power or leisure use. If you require a generator regularly, you want to seek a model with a commercial engine. Not only will it fit better, but you'll probably get a warranty that lasts longer than 90 days or 6 months. The obvious disadvantage is that they are usually more costly.

4. Fuel Type

Gas generators are by far the most popular fuel type. Use a gasoline stabilizer to counteract the effects of ethanol, whether you're keeping fuel in the tank or in fuel containers. Diesel generators offer superior fuel efficiency if you're ready to spend the extra money. You'll also get rid of the carburetor, which appears to clog up at the most inconvenient times.

Diesel is the way to go if you're looking for a whole-house generator. However, consider that diesel isn't always as easy to come by as gasoline. A propane or gas generator that can be converted to propane use is another alternative. It's another option if you want to use a more environmentally friendly fuel source and don't mind it being a little more complicated.

Battery-powered inverters offer the benefit of recharging via solar panels, running quietly, and emitting no pollutants. The disadvantage is that they're pricey, take a long time to charge, and normally only provide about 2000 watts of power. As a result, they're currently not a very practical alternative outside of camping.

5. Fuel Tank

You can go longer between refueling if your fuel tank is larger. Most generators have a fuel tank capable of providing 7–9 hours of operation at 50% load. If you use a lower fraction of the available power, you'll run longer; if you use more, you'll go faster. Plastic and gas fuel tanks are also available. Plastic is the preferred material because it does not rust.

6. Starting

If you can afford the extra expense, electric start engines are fantastic. However, when buying a portable generator, you'll see that most of them still use lead-acid batteries like those found in cars.

However, some lithium-ion ones are circulating. Before using, make sure your battery is fully charged. Most generators will be fine if the battery charger is left plugged in between usage to retain the charge.

7. The Level of Noise

A silent design is available for smaller generators. However, by the time you reach the 4000-watt level and upwards, there isn't much left in the "quiet" category. The fuel source is one thing to think about. Diesel engines make significantly more noise than comparable gas engines.

8. Electronic Fuel Injection (EFI)

EFI does away with the use of a carburetor. Clogged carburetors are one of the most common problems for folks who do not maintain their generators as well as they could. In addition, your generator will be easier to start in cold weather.

9. Detection of Carbon Monoxide

Carbon monoxide (CO) detectors are included in the generators of several manufacturers. These merely monitor the amount of carbon monoxide around the engine and turn it off if the levels become too high. They usually operate faster than the ones you can put in your house and are more effective at preventing CO-related illness or death. However, be aware that CO detectors can be tampered with. To avoid erroneous readings, make sure the generator exhaust is pointed downwind from the sensor and not in a corner.

10. Kit for Wheels

Although generators are large and heavy, not all of them come with a wheel kit. Some stores ask you to purchase it individually, so double-check before you swipe your credit card! Generators with two or four wheels are available. In addition, you can buy aftermarket generator dolly kits to add wheels to a model that doesn't have them.

11. Hook Bar Lift

If you're purchasing a portable generator for commercial or industrial use, you'll almost certainly need to move it to a higher floor at some time. A generator with a raised hook bar provides a significant advantage that can save you time and effort.

Frequently Asked Questions(FAQs)

1. How Do I Connect a Generator to My Home?

The ability to connect your generator directly to your home is a very practical way to have emergency electricity. However, the best option is to utilize a whole-house backup generator designed expressly for that purpose. When the electricity goes out, these whole-house generators turn on or off automatically.

Of course, they're more expensive than portable ones, but they've recently gotten more reasonable. Many portable generators can also be connected to your home. However, they, like whole-house generators, are not do-it-yourself projects. You'll need to hire a professional electrician to install the transfer switch.

There are many additional factors to consider. The first step is to ensure that the generator you select has sufficient power. When you don't have enough power to run the whole house plus starting surge, you may need to prioritize by tripping some breakers. If you're using a portable generator, be sure you know where it'll be sitting while it's operating and that you have enough wire to reach your transfer switch.

2. What is the maximum amount of time a generator can run on 5 gallons of gasoline?

When you need to run standalone equipment that requires a lot of power, generators are necessary. Different types and sizes of generators consume gas at varying rates. Some will run for 8 hours, while others run for nearly twice as long. Some are also only good for 2 to 4 hours and use less gas.

Most manufacturer and expert recommendations for using generators state that they should not run for more than a few hours. Maintenance, gasoline, and grease are required more frequently for internal components. To save resources when you need them most, utilize the generator sparingly with periods of inactivity in between.

3. Can I Use a Generator Throughout the Night?

You're in luck if there are any reasons why you might want to leave a generator running in the middle of the night while you sleep. Such a task is safe and achievable if a few recommendations are followed. First, remember to set the alarm for the times when it will be active and to check on it first thing in the morning.

Fill your generator to the utmost capacity and double-check that it can run for an extended amount of time. Get a CO detector and keep an eye on the levels when using it. Make sure the generator is kept in a soundproof area, as it can be quite noisy when attempting to sleep. Finally, as generators are highly expensive and easy targets for theft, make sure they are stored in a secure location.

4. How Should I Store My Portable Generator?

It's critical to drain the gasoline from your portable generator before storing it for more than a month. Gasoline is not only acidic, but it also begins to break down after 30 days, making it more volatile and inefficient. To ensure that nothing is left in the engine after draining the gasoline, it is necessary to run the carburetor dry.

5. What Gas is Used in a Portable Generator?

A non-diesel portable generator runs on unleaded gasoline with an octane level of 87 or higher. It's also a good idea to add a stabilizer to your gasoline before starting your generator to keep it from overheating. The stabilizer will help protect the engine's moving parts from the corrosive effects of gasoline. The optimum ratio, and the length of its action, will be determined by the directions on the stabilizer container.

6. When and Where should Your Generator be Used?

Never use a generator inside or in the garage. Carbon monoxide is produced by the combustion engine of a portable generator. Therefore, it would be best if you only used your generator outside, away from any windows and doors, in a well-ventilated location.

During severe weather, never use your generator or leave it outside. Rain, snow, or other damp conditions can corrode your generator's metal components and cause catastrophic damage to its electrical components.

Conclusion

The Generac GP8000e is designed to be a multi-tasker. As a result, it is adaptable enough to serve a variety of objectives. In addition, it is the portable generator for you if you need something that can work in various settings.

A contractor might want a heavier-duty model, while someone who frequently takes RV vacations might prefer something lighter and quieter. A good generator is a significant investment. The Generac GP8000E series allows you to meet all of your demands with a single investment rather than having to spend more on numerous other types of generators.

The battery, which the engine cannot charge, is the only severe flaw. It means it must be removed when the engine is turned off. Hence charging the battery is more difficult than it needs to be.

Apart from that, the Generac GP8000E series is a user-friendly and convenient generator. The control panel is simple, portable, and equipped with shielded plugs and an hour meter for maintenance reminders.

Ian Mutuli

About the author

Ian Mutuli

Founder and Managing Editor of Archute. He is also a graduate architect from The University of Nairobi, Kenya.
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