On the fence about buying a large-size generator and can’t decide which is the best 8000-8500 watt generator?
Well, your concern is quite on point because a generator that is held accountable for your power supply, operating the electronics of every room in your house, and several other appliances should be the best heavy-duty generator.
Also, supposing that you want to power a whole construction job site with several power tools, we suggest you keenly take an interest in researching the best solid large-size generators out there so that the quality and the service provided by the generator are not compromised.
Besides, considering that an unexpected natural fluctuation, such as bad weather, decides to throw itself at you out of nowhere? Would you be ready with a powerful generator to support you for a longer period in case of an extended blackout?
For these reasons, we deem it necessary that you find out which large-size generator is best for your needs.
Buckle up and surf with us through this article which will provide you with all the necessary details about the best 8000-8500 watt generator.
After all-embracing and in-depth research of numerous brands, companies, and models of generators, we have picked the best of the best 8500-watt generators for you so that you have a list of wide varieties to choose from.
Following are our recommended top-notch and best 8000-8500 watt generator list with their features, advantages, and disadvantages. These will allow you to compare and contrast and decide the best fit for your needs.
In a hurry? Hold on! Have a look at our top pick before heading for the purchase of your desired product.
- Wattage: 7000 watts
- Runtime: 8 hours
- Tank Volume: 7.9 Gallons
Short on time?
Consider picking the DuroMax XP8500, as the name suggests, is a powerful generator for home and outdoors that comes with all the bells and whistles that make it a perfect choice for homeowners looking for a durable and suitable backup machine that will be helpful in emergencies.
The comparison chart below lists all the best 8000 to 8500-watt generators to showcase quick features of all the best generators to help you decide quickly if you are short on time and need to decide soon about choosing the right generator.
Comparison Table Of Best 8000-8500 Watt Generators
Image | Product | Features | Price |
---|---|---|---|
Best Powerful Generator With Cast Iron Engine ![]() | Champion 8000-Watt Generator
| 10 | Check Price |
Best Fuel-Efficient Generator ![]() | Togo Power Portable Generator GG8000
| 10 | Check Price |
Best Powerful Generator ![]() | Ford 7,750W Dual Fuel
| 10 | Check Price |
Best Noiseless Generator ![]() | DuroStar DS10000E
| 9.5 | Check Price |
Best Heavy-Duty Generator ![]() | Generac 7676 GP8000E
| 9.5 | Check Price |
Top Pick ![]() | DuroMax XP8500E
| 10 | Check Price |
Best Economy Mode ![]() | Champion Power Equipment 100520
| 9.5 | Check Price |
Best Runner Up ![]() | A-iPower 9,000-Watt
| 9 | Check Price |
Best Large Tank Generator ![]() | Craftsman 8000-Watt
| 9 | Check Price |
Best Remote Start Generator ![]() | Firman Performance Series
| 9 | Check Price |
Let us look at a few of those mentioned best 8000-8500 W generators, in detail:
Best Powerful Generator With Cast Iron Engine
Last but not least, this decent-looking heavy-duty power supply generator is a great choice for house backup and outdoor events.
Features:
Champion’s power equipment are well-known generator with a wattage of 8000 W, four strokes powerful engine, 120 volts, and dual fuel characteristics. This generator is a highly-rated power generator.
Its wattage at a peak is 10000 W, and 8000 W rated on gasoline and propane produces up to 9025 W peak and 7250 W of power.
Its wattage at a height is 10000 W, and 8000 W rated on gas and propane produces up to 9025 W peak and 7250 W of power.
With a 74 dBA, which is a bit louder than a vacuum, this generator can serve up to 8 hours when its 6.1-gallon fuel tank is full and operate for 5 hours on 20 pounds of propane.
It keeps track of voltage, hertz, and runtime hours; these records are displayed with the help of their meters, Which is useful on various maintenance intervals.
In addition, the Champion 8000 Watts Generator includes a low oil shut-off system and a trusted volt guard built into a surge protector to prevent sudden overloads.
Due to the electric push start function, you can easily start the 459 cc engine, which has great potential for supplying power.
- Protective low oil shut-off system
- Air cool technology
- Single-cylinder engine
- Recoil starts with an electric push button
- Cast iron engine
- Not very user-friendly
Verdict:
TogoPower Portable Generator GG8000 is our next cherry pick for you in our list of the best 8000 to 8500-watt generators.
This durable generator has 6500 running wattage and a starting wattage of 8000.
This particular generator is an impressive machine with versatile purposed and features making it just the right choice to run RV accessories, camping, home backup, job sites, etc.
Features:
TogoPower Portable Generator GG8000 comes as a gas-powered 8000-watt generator with an electric keyless start, making it an easy-to-start machine.
In winter, its powerful recoil technology saves much of your time with the cold start technology.
As for its engine, it comes with a single-cylinder 4-stroke 420cc OHV. On top of this, the Togo Power Portable Generator GG8000 generator also has a sufficient tank of fuel at 5-6 gallons.
At 25% of the power load, the generator can run up to 17 hours which is a good and satisfactory run time.
Also, there is a possible interchangeable vault technology giving you the liberty to choose the volts between 120-240. Apart from this, this striking machine is EPA-compliant and CARB-certified.
- Provides free-of-cost technical support
- Automated low oil shut off
- Includes your product manual
- Free tool set, wheel kit, rain cover, and oil funnel
- Anti-electricity shock system
- Bulky and hard to transport
Verdict:
Great for personal use as well as professional application, Ford’s 7,750 watts Portable electric Start dual Fuel Generator has efficient technology, which puts less pressure on the engine, making sure that your machine is reliable and its lifespan prolonged.
Would I miss the service of this handy generator? Of course not! It is designed with care to take your load and make you feel lighter.
Features:
One of Ford’s finest products introduced in the power industries is its 420cc, 4-stroke, OHV engine generator.
It also includes an air cooling system in case of sudden engine heat-up. This feature gives you relief from heavy maintenance. In addition, its dual-fuel characteristic allows you to choose the fuel you think best fits your needs.
With a peak of 7750 W and 6250 W rated on gasoline and a height of 7500 W and 6000 W rated wattage on LPG (liquefied petroleum gas).
A 6.6 gallons fuel tank delivers an impressive continuous operation of up to 10.5 hours but with half load.
Its smartly designed engine structure is protected with a powder-coated steel frame.
Smart switch and Go technology allow transitioning of fuel even during the operation due to the electric push start, and a maintenance-free battery allows quick start-ups. 10” never attached–flat wheel with F-150 chromed rims increases the product’s mobility.
This product, Ford 7,750W Dual Fuel is delivered with certified CARB, EPA, and CSA, including tools like a spark plug T wrench, combination wrench, a Philips screwdriver, an oil funnel, and a propane hose.
- A strong air-cooled engine
- Possible including the twist-lock outlet
- Never flat foam wheels
- Prolonged run time of 10.5 hours on 50% load
- Weak engine valves
Verdict:
Now we shall introduce you to this beautiful machine designed with care to reduce your cost, as it is less expensive than the features that make the device stand out from the crowd.
Durostar DS10000E is a portable gas-powered generator with an electric start system. It is a home backup machine that runs RV accessories and is extremely handy.
Features:
Running on the Durostar OHV 18 HP 440cc engine Durostar DS10000E can be a powerful machine to light up your house from high voltage appliances to heavy-duty power tools, or you can effectively run your construction job site with this machine.
Even more brilliant is its choice of operating capacity with its possible interchangeable volts; it is up to you whether you want to use it at 120 vaults or 240 vaults or both simultaneously credited to its powerful MX2 technology.
DuroStar DS10000E efficient idle control system makes the generator a quietly operating machine by lowering its RMPs.
This mighty machine also comes with an array of outlets for a smoother application to ensure compatibility with the power panel. Moreover, it consists of a longer lifespan with its heavy-duty materials.
Safety cautions have been undertaken with oil warnings and circuit breakers. Out in the woods or up in the mountains, this easy-to-mount machine can be transported easily to any terrain you pick.
- Operates with less noise
- Consists of a fully-featured power panel including multiple outlets for peak compatibility
- Oil warnings
- Automated shut-off on low oil
- Only one year of warranty
Verdict:
We have yet another simple-to-use electric keyless start model generator with many highly appreciated features to enlist among our best 8000-8500 watt generator list.
With its high-performance features, the generator is a good pick for recreational use purpose and emergency backup.
Features:
Powered by the OHV motor, Generac 7676 GP8000E 8000 watt is a powerful generator with splash lubrication ensuring longer product life.
It has a starting capacity that is 30% higher than the usual generators owing to its powered, advanced technology.
On gasoline, the machine has the power of 8000 running watts and reaches a height of 10000 starting watts. It has a sufficiently large fuel tank capacity of 11 hours on half a load with an integrated tank gauge.
Furthermore, to keep the engine’s safety in check, there is an installed oil and digital hour meter so that you get warnings when your machine runs out of fuel or oil.
On top, to upsurge the resilience and strength of the device, there is a 2.5-inch steel-tube cradle.
Generac 7676 GP8000E comes with a plug-in battery charge jack that will always keep your generator ready for uncertainties such as unexpected power outages.
Apart from this, it also consists of a cover protecting the outlets and heavy-duty solid wheels to ensure safety and easy mounting
- A battery is included
- A sufficient running time of 11 hours on half the total load
- A reliable steel fuel tank
- Perfect fit for recreational use as well as emergency power needs
- Heavy-duty wheels make it easy to move
- Includes product manual
- Less durable
- Weak body
Verdict:
Duromax XP8500E is one of the best options that we have to offer for your selection according to our examination. A truly amazing and powerful machine with long-lasting durability.
Its powerful outlets and ignition system make it the best power generator. On the whole, this easy-going portable generator is just the perfect pick for you.
Features:
The finest pick from our list of the best 8000-8500 watt generators is the DuroMax XP8500E with its simple-to-use features.
It’s a gas-powered generator that runs on 7000 running watts and 8500 peak watts, making it an effective machine to handle all sorts of loads, from lights to a refrigerator, an air conditioner, and several power tools.
Powered by a DuroMax 420cc OHV engine, this machine can power high-voltage appliances and heavy-duty power tools.
On top, to keep the engine from harm, it consists of an oil warning notice, which will alarm you every time there is an oil deficiency in the machine and needs a refill.
This low oil shutoff notice makes the generator reliable in terms of extra protection. Apart from this, the machine also comes with a newly introduced feature called the auto throttle, an idle control feature.
With this system, the device can easily uphold RPMs under fluctuating loads. Eventually, this system assures the maximization of fuel efficiency and minimizes the noise output.
Easily, the DuroMax XP8500, as the name suggests, is a powerful generator for home and outdoors that comes with all the bells and whistles that make it a perfect choice for homeowners looking for a durable and suitable backup machine that will be helpful in emergencies.
- Notifies of Oil warning
- Supports dual fuel
- Heavy-duty tubed iron frame
- A strong 4-stroke engine
- Circuit breakers
- Comes with a toolset and a wheel kit
- It makes a lot of noise to operate
Verdict:
The DuroMax XP8500E is exactly what you’re looking for. With this multi-featured MX2 power boost technology, you can rest assured that your life’s light is in good hands.
Champion power equipment 100520 is the best quiet and lightweight generator, giving a whole new meaning to empowering your house.
You can easily plug in your sensitive electronics, heavy-load electronics, and regular electronics such as lights and fans on this powerful generator.
Feature:
Champion Power Equipment 100520 is an extremely affordable and one of the best 8000-8500 watt generators with the capacity to run on gasoline from 7000 to the ultimate power of 8750 watts.
The generator begins electronically and is designed with a durability of up to 3 years.
Moreover, the champion 8500-watt generator is a unique generator incorporating the quiet technology digital inverter system that reduces noise.
To take care of the weight and make it a lightweight machine, the company has used a mechanical design that will eventually decrease the chances of leaving footprints by cutting the weight by half; thus, the device stands at 155.4 pounds only.
What makes it an even more ideal generator is its capacity of 4.2 gallons of a tank which offers a runtime of 10.5 hours.
Additionally, the Champion Power Equipment 100520 quick drain oil tube technology that the generator contains makes it so much easier to clean and change the oil.
Its cold start technology makes it a highly reliable generator during winter to guarantee a rapid start in cold weather conditions. You can even connect your sensitive electronics confidently with its clean power production.
- Cold Start Technology
- An economy mode that will save your fuel
- A convenient electric start with a push button
- Comes with a toolset
- Wheel kit
- A battery is included
- The only problem is that it is low capacity
Verdict:
Bringing you our best portable generator for the list of best 8000-8500 watt generators is the A-power SUA9000E.
This portable generator uses an electric-start system, and a powerful engine, not to mention a low oil backup to safeguard the engine’s longer lifespan and give it the best run time.
Features:
It has dual fuel, which can burn both gasoline and propane. A 459cc 16HP motor fuels this machine to perform smoother and better.
Powered with an impressive wattage, generating 9000 max starting watts and 7250 running watts.
Depending on the load put on the generator, this dual duel generator permits a run time of 8-9 hours with a 7 gallons fuel capacity making it a highly fuel-efficient generator.
It can bear a load of an AC at 120/240v with a frequency of 60Hz.
This is the one for you if you’re looking for a multi-featured generator. A-iPower 9,000-Watt has an impressive construction containing an anti-corrosive coating which makes it weather-resistant, plus a cover protecting the outlet.
There is also an automatic low oil turnoff which ensures the safeguard of the engine.
Not only this but a noise-reducing muffler has also been used, which protects the environment and provides its service giving you peace of mind, with a powerful engine that grants it a longer lifespan and low oil backup safeguards the engine and an extended run time. This is the one for you.
- A powerful four-engine stroke
- Automated low oil turn-off technology
- A large gasoline fuel tank runs up to 10 hours
- Electric start technology makes it quicker to start the generator
- Rubber cover protecting the outlets on all sides
- Solid, never-flat wheels for easy mount
- Bad quality valve and fasteners
- Unpopular brand
Verdict:
Craftsman 8000W portable generator is one’s best choices for house backup and outdoor functions or activities. With the help of a powerful and durable engine and just a finger’s push, this generator is ready to power your world.
Features:
An outstanding fuel tank of up to 8.5 gallons serves almost 11 nonstop supplies of power at half load.
In addition, for safety, CO detection technology is installed in the product, which shuts down the generator automatically if a high level of CO is detected.
With an approx. Weight 207 pounds, Craftsman’s 8000 W Portable generator is a heavy-duty generator.
Including a monster fuel tank of up to 8.5 gallons, this generator will serve its duty for 11 hours with a 50 percent load.
With a 11500 W peak and 8000 W rated power supply, this generator can power up many household items during an outage.
The electric push start features add simplicity to its use, and CO detection technology greatly relieves your maintenance.
A 420 cc engine adds durability and makes its job easier for the best performance. Its multi-featured control panel includes four 120 V household outlets and one 120/240 V, 30 A locking outlet.
- CO gather technology
- Huge tank fuel
- Multi-featured control panel
- 3-year warranty
- Comes with free engine oil
- Quite bulky for mounting
Verdict:
Yet another spectacular machine to take care of your power supply is the Firman Performance Series. When looking for the best 8000-8500 watt generator, you should look at this simple yet intricately designed machine.
Features:
This model of the Firman Performance Series consists of 8000 running watts and reaches the peak at 10000 starting watts.
It comes with a pro series Firman engine, w-stroke, and has a capacity of 439 CC and an engine displacement of 439 Cubic Centimeters.
For this model, Firman Performance Series has used a recoil chord option and an electric remote start technology, saving you time. Moreover, this generator has six battery charge charging batteries hold outlets.
As for its capacity, the machine is comprised of a huge fuel tank that can take up to 8 gallons, which is sufficient for the house backup. The device comes with ten wheels that are flat-free and extremely dry weight.
- 4-stroke powerful pro series Firman engine
- Six multipurpose outlets
- Battery included
- California emission authorized
- Electric remote start
- Flat-free easy to mount wheels
- Low running time of 1 hour on 50% load
- Small brand
Verdict:
Buying Guide-How Choosing The Best 8000-8500 Watt Generator?
Worried about picking the right power generator for your home?
Well, your concern is quite on point because a generator that is held accountable for your power supply, operating the electronics of every room in your house, and several other appliances should be the best of the best smart generator.

Buying Guide Of Best 8000-8500 Watt Generator – Infographics
Now, if you’re still hesitating about your choice and wondering what features and factors you should look for in the best power generator, well, you are in the right place.
Not to mention, a generator that is price efficient and, at the same time, good quality is not completely a wild goose chase only if you diligently research the factors necessary for you to consider when buying a heavy-duty generator.
But worry not; we will help you with this guide to save you time. Let us guide you briefly on the three major factors to consider when choosing the best 8000-watt generator:
Running Time:
The fuel is important, but first, you need to identify the hours you think you will need to rely on a generator. What is the longest period of hours the generator can consistently run and generate energy that must be of deep concern to you?
Fuel:
Secondly, you need to look at the fuel tank capacity and capability.
Is it capable of running the generator for your required hours? A dual-fuel generator like the ones we have listed above is highly recommended.
In general beliefs, propane is considered comparatively weaker than gasoline. Moreover, the capacity of the fuel tank is also of primary importance.
Material:
Thirdly, the material used in the generator’s body is also a significantly recommended feature when buying a generator.
The most preferable and reliable materials are stainless steel and heavy-duty. A strong sleeve is also recommended to protect your machine from being destroyed and increase its lifespan.
Please avoid any weak construction; their prices might seem cheaper, but they’re not a good option considering their durability is not that long-lasting. Hence, the machine will not be good or well-suited.
Power:
The power change has two periods. They occur at the beginning/maximum time and running time. When the machine begins operating, it reaches about 10,000 Watts slowing down to get a stable running time of about 8000 Watt.
In dual-fuel, it can operate more efficiently and powerfully, reaching 12,000 Watts at the peak and about 9,500 Watts in the running time of gasoline.
Capacity:
A normal 8000-WATT generator has a minimum capacity of 6.6 gallons and the maximum capacity of about 8 gallons.
Please note that if you have a greater power requirement, you should use a generator with a greater degree.
This capacity contributes to the number of hours it can run before needing to refill the oil.
A 6.6 gallon will give around 10 hours of running; however, an 8-gallon generator can provide 15 hours or more. If the tank is larger, it will run for longer periods.
This data has some room for error as it cannot be exact and will vary depending on the engine and power of the machine.
Engine:
The most commonly used engine is OHV or Duromax. Its power depends on its HP; the higher the HP, the more power it has. On average, the engine usually is around 15HP, 457cc OHV.
Duromax’s average is above 15HP. Duromax’s average is above 15HP. Hence, we recommend you go for something higher than this average power.
Generators are usually air-cooled; hence, it is necessary to ensure that the machine is not overheated. Especially during certain seasons, like summer.
Moreover, there are two types: two-stroke and four-stroke engines. The four-stroke machine is more expensive; however, it is the better choice among the 2, as it allows for fort and convenience in the long run.
It is believed that the four-stroke engine is far more efficient and effective as there is no need to mix oil into the fuel, providing more power than the two-stroke.
Warranty:
Like in purchasing any machine, a warranty is one of the most important factors to notice.
Since any device can be broken or the electrical components may have an issue over time, purchasing a generator whose warranty covers a longer period is best.
It is more advisable to go for generators with clearly stated warranty policies.
The Noise Level:
It is preferable to choose a quieter machine. The prolonged periods of noise will affect and annoy you and the people around you; hence, we suggest you go for generators that now come with noise-reduction technology.
The best-rated 8000-watt portable generator’s average noise level is around 76 dBA, so look for a machine that provides around this figure or lower.
Safety Features:
The safety features in a machine are usually there to alert or notify you regarding any error that has occurred within the device.
For example, the most common features are the oil low, auto shut off, and warning.
If the device is low on oil, it will alert you, and if the oil is below the required level, it will shut off the engine to prevent any major damage.
Several other features add to the value of the machine. Some of these features include external oil gauges, oil gauges, etc. Some of these features include external oil gauges, oil gauges, etc.
Hence, we suggest you go for a generator with a better variety of features.
Digital Meter:
A digital meter is a very important feature as it allows the user to view the running hours, the fuel level in the machine, etc.
In this way, the user can be well informed and can take action when needed regarding the fuel/oil and keep a check on the running hours, etc.
Electric Start:
This is one of the most robust features of the machine as it enables the user to start the engine with just one touch button, unlike the old traditional way, which was quite time and energy-consuming.
This feature ensures the user can operate the machine easily, efficiently, and comfortably.
Price:
Inexpensive (Below $900):
In this range, you will get a machine with a weaker engine with a shorter running time compared to the more expensive ones.
However, if your demands are basic and you need a generator for your house, and the machine does not have to run for a prolonged period, then it will be quite good since an 8000-WATT generator is powerful compared to the other devices.
Mid Range ($900 – $1100):
You will have a comparatively large variety and famous brands to choose from in this range. Although, the tank capacity may be lower. Certain products may be able to operate in dual fuel mode.
When these products are compared with the less expensive/cheaper products, they have a better and higher lifespan, are more powerful, and have better warranty packages.
Moreover, the durability of heavy-duty materials and the running time are far more efficient.
Expensive (ABOVE $1100):
This price range offers the best type of machine. It is perfect for businesses or factories where electricity is very necessary.
The warranty package is impressive because the machine’s quality is reassured this way. The generator of such a price range comes with various features that bring out the best user experience.
FAQs (Frequently Asked Questions)
How Many Amps Is An 8000-Watt Generator Good For?
In general, to aid electric power shortage, there is a 110 – 120 volt generator at which an 8000-watt generator will be good for generating up to 66 to 72 amps.
How Long Will An 8000-Watt Generator Run?
Generally, an 8000-watt generator can run for a minimum of 5 hours to 16 hours, depending on the fuel tank and the load it bears.
Will An 8000-Watt Generator Run A House?
Yes. An 8000-watt generator will easily take off almost all household electronic needs.
Even if you face a sudden outage for an extended period, an 8000-watt generator will take care of your power supply, given the fuel in the tank.
How Much Does An 8500 Generator Cost?
There is a wide variety of choices regarding the prices for the 8500 generators.
You may find some as cheap as 300$ and as expensive as 1000$ or above. The cost will depend on the brand and the quality of the generator.
How Long Will An 8500-Watt Generator Run On Propane?
It can run for a decent amount of time, up to 5 hours.
However, if electrical power outages last long, i.e., more than 5 hours, you need to look at the gasoline options for not to cause any inconvenience to your business or family.
Conclusion:
Our quick list provided you with a bird’s eye view of the ten best 8000-8500 watt generators, while, on the other hand, a detailed description was provided to skim the best of the best generators.
So to cap it all, we have reached the end of this informative article on the best 8000-8500 watt generator; I hope that it will be handy in helping you come up with your pick from the list.
We wish you a good look at buying your 8000-watt generator. Don’t stay in the dark; we’ve got your back.
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