Top 7 Portable Generator In 2021 Review & Buyers Guide (12000 watt)

A generator isn’t on everyone’s purchase list, but if you are running a business that’s highly dependent on electricity, it should be the high time you consider an appropriate backup. Fortunately, many firms are selling good generators, although this brings about problems when selecting your ideal match.

However, you shouldn’t worry about this anymore, as this blog has all your concerns covered. I have prepared a list of the best performing 12000 Watt generators to ensure your buying process is easy, and you end up with non-regrettable purchases. Before that, bear in mind that there are essential considerations to make before buying a portable generator.

These include ensuring the tool’s handle is sturdy, and the wheels are ideally made for frequent ferrying. Other than that, the device should have multiple output receptacles to enable you to connect to as many appliances as possible.

Top 7 Best 12000 Watt Portable Generators

To help you choose the best 12000 Watt portable generator for your specific needs, I have extensively analyzed the upcoming 7 choices in terms of portability, ease of use, efficacy, and cost. I can assure you they are the best options to consider. The devices are arranged in order of popularity to ensure you pick the best option with ease.

1. Westinghouse WGen9500 – Best Portable 12000 Watt Generator

This generator is manufactured by a company well known for delivering quality machinery. Fortunately, the device here is no exception, and it gets almost a 5-star rating when it comes to its quality. At 270 pounds, portability might be an issue for some people, although the incorporated heavy-duty wheels ensure that ferrying the piece is the least of your concerns.

In terms of power, the device will definitely exceed your expectations. It is powered by a 457cc 4-Stroke OHV engine and produces 9500 Watts during normal running and 12500 Watts at its peak. The power is enough for any commercial use, and this makes the piece an ideal backup option.

Besides that, this heavy-duty generator has a 6.6-gallon fuel capacity, which enables it to run about 17.5 hours without stopping. So, in the event of extreme power outage cases, you have nothing to worry about as the machine will serve your needs to perfection. The engine is also perfectly shielded from any damage.

But you might be wondering if the oil you applied will last 17.5 hours. Well, the generator is automated to shut down any time the oil level is low. There is, however, a meter where you will take the oil’s reading and know when to add oil so that you can prevent regular shutting.
Besides that, all the necessary accessories are conveyed during item acquisition, including a 12V battery. The generator has a total of 6 receptacles to ensure your power as many appliances as possible. It possesses a remote powering feature, and its start key is conveyed upon item purchase.

Finally, assembling the piece is the least of your concerns. The seller includes an assembly manual when you purchase the generator. You also get a 3-year limited service warranty, and there are different models available, especially if you need a low power generator.

  • Electric switch and remote start feature
  • 17.5 hours runtime
  • The device shuts down if the oil level is low
  • It is powered by a 457cc 4-Stroke OHV engine
  • 3-year limited service
  • It is slightly loud, although tolerable
  • It is heavy at 270 pounds

2. DuroMax XP12000EH – Portable 12000 Watt Generator

There are over 8 DuroMax generator models to choose from, meaning that it is super easy to get a machine that meets your demands and one that fits under your budget. However, the unit under review is powered by an 18HP, 457cc engine, meaning the power output is enough and, in most cases, beyond your demands.

All in all, the machine is suitable for commercial application, home use, and usage as an ideal backup plan. In terms of fuel consumption, the piece offers you unbelievable flexibility, as it uses propane or gasoline, depending on your budget. It produces over 9500 running watts, and it has an incredible 12000 starting watts.

Full power is only accessible through the use of one of the 120V receptacles at a time. However, there’s a choice to use the receptacles simultaneously, especially if you don’t need maximum power to run your appliances. Away from that, your portability concerns are ideally solved by the available heavy-duty wheels.

It has an 8.3-gallon fuel tank, suitable to offer a full-day service without refilling. It is also made of high-quality metal to ensure it lasts long without damage. There are 5 outlets to enable you to power several devices when using the tool. Finally, powering the machine is stress-free, all thanks to the fused electric start technology. It is also covered by a 3-year warranty.

  • 3-year warranty
  • Dual fuel technology
  • 8.3-gallon fuel tank
  • Heavy-duty construction
  • Misses automated low-oil lockdown feature
  • Lacks an oil gauge meter

3. Pulsar G12KBN – An Amazingly Portable Model

With the item having an ideal handle and perfectly crafted wheels, it unquestionably passes the first test, which has to do with portability. Secondly, does it make of the best 12000 watt portable generators? Well, its features, especially its power output, will show if the piece fits under this category.

So, the generator is powered by a 457cc engine, producing 12000 peak watts and 9500 running watts on gasoline. It also yields 10800 peak watts and 8550 running watts when using propane gas, given the way it is a dual-fuel model. The output is enough to power all home and commercial appliances, thereby making the item ideal in terms of electric production.

But does it have the outlets to feed all these channels or appliances? Well, there are 7 outlets, including 4 120V outlets, so there are enough channels to power your devices. Lastly, does the generator have the capacity to run for long without shutting? The machine has an 8-gallon fuel tank.

It provides over 12 hours of running time when the generator is on half-load. Sounds short? Well, that’s more than most machines under review; therefore, the running time is perfectly great. There are also additional features that might excite you, and these include:

  • An electric start shielded by a resilient powder coated frame.
  • Comfy drop-down handles
  • 10-inch flat-free wheels
  • Low-oil shut off feature
  • Propane pip
  • Auto voltage regulator
  • Digital meter

  • It is a dual fuel generator
  • Contains flat-free wheels
  • Long runtime when using gasoline
  • Large fuel tank
  • An ideally shielded electric start
  • Short warranty

4. Pulsar 12,000W – The Most Powerful Item on the List

The generator produces about 12000 peak watts and 9500 running watts when you use gasoline, compared to 10800 peak watts and 8550 running watts when you use propane gas. This fueling flexibility makes the device easy to use and affordable. With the unit being the biggest among the components sold by the company, there are several smaller pieces to purchase if your budget is low.

Like most of the reviewed generators, it is powered by a 457cc OHV engine and has 7 outlets, including 4 120V outlets. It has an electric start and a transfer switch making it super easy to use. It is perfectly made to ease your ferrying concerns, all in the account of the drop-down handles and flat-free wheels.

There’s also an incorporated digital meter, and the generator has a unique sturdy design. The support service is great and highly responsive, which will save your day if the generator develops an issue.

  • Powerful in gasoline and propane modes
  • Has an electric start and transfer switch
  • It is easily portable, thanks to the well-build handles
  • Durable make
  • Inconsistent power output
  • No warranty

5. All Power America APGG12000 – 12000 Watt Portable Generator with Electric Start

With three sizes and models to pick from, getting the ideal fit for your needs here is equally simple. The generator is powerful, and it perfectly suits all house applications. Besides that, you can use it for commercial powering, as it has a peak output of 12000 watts and a running power of 9000 watts.

However, the 9000 running watts are slightly lower than the items reviewed above, although the difference in price might turn the piece to a bargain. The device also has an electric start feature; therefore, you have a stress-free starting procedure. Its engine is slightly powerful, compared to the above-reviewed generators, as it is an 18HP, 459cc OHV air-cooled engine.

Its fuel capacity is 8 gallons, and in terms of noise produced, the product is slightly loud. The machine’s runtime is a bit low, at 10 hours. However, it has an hour meter reader that will help you know the oil and fuel readings. All essential accessories are included upon item purchase, and two of these are unique.

The upkeep-free battery and flat-free wheel kit are ideal bargains. These mean that you will have zero worries when it comes to starting the machine and zero-concerns when it comes to ferrying it. There are a total of 7 outlets, including 4 120V outlets and 1 12V DC outlet. Finally, it weighs about 240 pounds, but the wheels are perfectly made for the most convenient ferrying.

  • 459cc air-cooled engine
  • It comes with an upkeep-free battery
  • You receive a flat-free wheel
  • 8-gallon fuel tank
  • Has an electric start feature
  • It is loud
  • It has a short runtime

6. WEN DF1100T – Your Multioutlet Helper

The generator contains dual fuel and electric start features. Besides that, there are wheels to ease your ferrying concerns. The generator is powered by a 457 cc 4-Stroke OHV engine, which is turned on by the use of a key. There are also other two options to consider, including a 9500-watt single fuel and 13000 watts dual fuel generator.

When using the machine under review, you will get up to 11000 peak watts and 8300 running watts when using gasoline, while propane gas will help you get about 9500 peak watts and 7500 running watts. These are enough to power most home appliances, although they are slightly low compared to the other items under review.

Easily double your power from 120V to 240V when using the device. Enjoy up to 8 hours runtime when the generator is half loaded. Get multiple power outlets anytime you use the generator, and have every appliance running without hindrance. That said, you will get numerous gifts when you purchase the piece, including;

  • A cigar light plug
  • A bottle of oil
  • A 47-inch LPG connecting pipe
  • 2-year warranty

Finally, there’s an LED hour counter and an automated voltage regulator. You are also protected from overload.

  • Uses gasoline and propane gas
  • Easy to start
  • 2-year warranty
  • Multiple outlets
  • Up to 7500 running watts when using propane gas

7. Rainier R12000DF – A Quiet and Powerful Tool

Rainier R12000DF
Rainier R12000DF

With three models to pick from, getting a good fit for your budget must be so easy to achieve. Luckily enough, this isn’t the only advantage to benefit from this great generator purchase, as you get a dual fuel device, which offers flexibility in terms of fuel to use. Enjoy up to 12000 peak watts and 9500 running watts when using gasoline.

However, when you use propane gas, the peak watts reduce to 10,800, and the running watts stand at 8550 watts. Fortunately, the power is enough to use in the home and commercial stores, so you have nothing to worry about irrespective of the fuel you use. Away from that, the machine has a 6.6-gallon fuel tank to store enough fuel for full-day use.

There’s a fuel gauge in place, and its automated set to shut down when the oil level is low. It is powerful, all thanks to the 457cc 4-Stroke engine powering it. It will serve you for up to 17 hours when you use about a quarter of its output channels. There are many outlets to ensure the utmost convenience when using this machine.

It’s quiet, producing about 72 dB noise. There’s an electric start feature to ensure the utmost smoothness in operation. The fitted recoil start is there as a backup option. Unlike other items under review, the generator has a display feature to ensure you see its runtime hours, volts, and frequency.

There’s also a control panel, and the item is under a 3-year warranty from the manufacturer. It is surely a fitting choice for many and a non-regrettable purchase option.

  • Low oil and overload protection features
  • Dual fuel
  • Comfy handles
  • Electric start
  • Quiet
  • Data display feature
  • Short runtime when on half load

Essential Considerations before Buying a Generator

Having gone through the best quality 12000 watt portable generator reviews, you might have noticed that it might be a tough choice picking from hundreds of such products that are available for sale.
However, market saturation shouldn’t pose any purchasing problems if you understand the essential features of the item you are looking for, and that’s why I have prepared this section to ease your purchase hassle. The section entails a brief look at the ideal features to consider during the 12000-watt generator purchase.

Transfer Switch

It offers the utmost safety when using a generator as your backup plan. It also bolsters your powering ability and protects your generator from damage. You can choose between a manual and automated transfer switch, although the automatic one is slightly expensive.


Running the generator at home or in a busy office might make you realize how noisy some machines can be. Fortunately, there are quite quiet generators that produce as low as 55 dB at half-load. Such devices are the ideal choices to consider. However, a 70 dB sound might also be tolerable, as this is in the range of a normal conversation.

Upkeep Needs

A generator is a machine that requires regular checks to run ideally. One important factor you should always check is the oil level, although this has been simplified by the automatic shutdown feature that’s incorporated in most devices. All in all, check the fuel level and keep it clean. Replace the filters with time.

Local Laws

Are there regulations prohibiting the use of generators in your state? Well, understand the rules of the land, as some states might consider your machine as a sound or air pollutant.

Wrap Up

Conclusively, you might have gone through the reviews and saw OHV engines and wondered whether it’s an essential consideration feature. Well, Overhead Valve engines are more efficient and reliable, so why not go for them? Away from that, you must have seen that most generators have an electric start.

What you never saw in all is the upkeep-free battery, which ensures your machine never fails to start. So, go for the machine with an up-keep free battery. Low oil levels cause engine damage, and that’s why almost all generators under review have an automatic low oil shutdown feature.

Finally, the load protection and automated voltage regulators are essential as they protect your appliances from damage resulting from high voltage. So, are you wondering if there are other essential consideration features during the generator purchase? Well, you will get more assistance if you share your buying concerns with me.

Related post: Portable Diesel Generator for Home Use 2020

I’m Ronnie Collins. I’ve been passionate about gardening and woodworking all my life and even earned an MS degree in Botany from the University of Maryland. I’ve been working at a gardening company for a while, so I know the ropes about a whole lot of dedicated equipment such as the table saw, track saw, lawnmowers, chainsaws, garden hoses, and much more.

  1. Wylin_908: I bought a DuroMax generator for building a house and so that later it would remain as a backup in case of a power outage. The tank of this 12000 watt generator is large and can be operated for a long time without interruption. Now the generator is used as a backup power source. It is especially useful in the cold season. It’s easy to use, that’s why I taught all family members to use it.

  2. Hello, Ronnie! Thank you for the review. Finally, I know something about generators. Could you tell me please which generator is compact to use in RV?

    • Hello, thanks for reading my blog and happy to help! The most compact portable generator in this collection is the Pulsar 12,000W Dual Fuel. It is small in size and does not take up much space. At the same time, it contains a lot of fuel due to the large fuel tank. It starts up quickly and runs for a long time. If compactness is important to you, this is the best option.

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