Best Inverter Generator Reviews 2021 – Complete Buyer’s Guide

I hope you’ll agree with me; For most users, the best Inverter generators have several advantages over conventional generator models. First off, they are portable and produce silent operations.

Are you thinking of going camping with your travel trailer / RV or you need a good backup power source?

Then the inverter generator is good enough to meet your needs.

What is it anyway? 

An inverter generator transforms mechanical energy with the aid of an alternator into electrical energy. It follows some processes to convert the DC into AC, the product is efficient and smooth power. More on that in the buyers guide section.

In light of this, scoured the internet and put together the best inverter generators you can choose from. The top of the crop products on the market in 2021.

Top 3 Best Inverter Generators- Our Top Picks 2021

Champion 3400 Watt Inverter Generator

The Champion 3400 Watt Inverter Generator is a reliable inverter generator that can serve a vast amount of purposes. It can provide as backup power at home, powering RVs, camping sites or even tailgating when watching football matches.

When RVing, the generator has enough energy to run a 15,000 BTU RV air conditioner, and also power electrical devices like lights, modem, smartphone, etc.

Its inverter technology is top notch in its delivery as the generator produces the cleanest of energy. The clean power generated by the generator is less than 3% Total Harmonic Distortion (THD), one of the safest for powering sensitive devices.

The inverter generator, being a dual fuel inverter , presents these two options of fueling & refueling it – Gasoline and Liquid Propane Gas (LPG).

Gasoline, which is much more accessible, is easy to use in cases of emergency. LPG, on the other hand, being cheaper is something you can opt for. Either way, the generator works efficiently.

Running on gasoline, the generator generates 3,100 Continuous Watts and starts with 3,400 Peak Watts. The propane fuel differs as it makes 3,060 Starting Watts and 2,790 Continuous Watts.

Interesting enough, it’s easy to switch between the fuels with the aid of the Fuel Selector Switch.

The inverter generator has a propane inlet and hose that connects the generator to the LPG cylinder to provide fuel. It also has the gasoline tank that can hold 1.6 gallons (6.06 liters) of gasoline.

One of the salient features of this generator is its efficiency in fuel usage. Once the gas tank is fueled up to the brim, it lasts for 7.5 hours at 50% load.

Moreover, there’s the automatic idle control otherwise known as the Economy mode. This idle control reduces the generator’s noise level once there’s little load on the generator. As this contributes to the quiet operation, it anchors the fuel efficiency.

There’s a remarkable convenience in the manner this generator can be switched on. The standard recoil start is pretty easy to pull.

Also, an electric start is available to sweeten the cake further. By just pushing a button, the generator gets ignited. To aid the push button start, a battery is included in the device’s build.

A cool feature known as the Volt Guard is integrated into this generator. What the technology does is to protect electrical items from sudden voltage spikes and power surges.

This generator’s operations hinges on the safe running of the Champion 192cc single-cylinder OHV engine.

The engine can hold up a maximum of 0.6 quarts of oil for the generator’s safe operations. However, if the oil drops below the prerequisite for safe operations, an automatic oil shut-off sensor is triggered.

From 23 feet distance, the highest noise production of the generator is 59 dBA.

Besides, the Inverter generator boasts of the EPA and CARB compliance that makes it safe for use notwithstanding the location. That’s the extent of the super quiet operation disseminated by the generator.

The generator can be maneuvered without hassles due to the presence of the folding handle and the never flat wheels. Its portability is further attributed to its 95.7 lbs weight and compact design.

Whenever you’re in need of more power, you don’t need to fret as the generator can be paralleled to another generator in the series. However, you get the following outlets on the generator – 120V 30A RV, two 120V 20A household outlets, 12V DC automotive-style outlet and two USB adapters.

  • Economical use
  • User-friendly Price
  • Robust construction
  • It comes with a warranty
  • A bit noisy
  • Can’t carry heavy appliances
  • Heavy
  • The Champion is still a new rand on the market. Thus, there are a lot of skeptics towards their products

Yamaha EF2000iSv2


The Yamaha EF2000iSv2 inverter generator is fit enough to run several electrical appliances quietly with ease. The Inverter generator has a very cool retro design with compactness expressed by its 19.3 x 11 x 17.9 inches dimensions (2.2 Cu. Ft.) It can easily fit into the trunk of your car or back seat without taking up much space.

It has appeared on many generator users as one of the best inverter generators on the market. And with that endorsement, it has earned a spot on our list.

You can utilize the two 120V AC outlet and one 8A 12V DC outlets for powering your electrical devices. The generator’s peak output is 2000 Watts while its running power output is 1,600 continuous Watts.

Interestingly, the parallel capability allows the generator to combine with another generator to provide more power. To access this function, a twin tech cable is used to connect this generator to another Yamaha EF series generator. This becomes extremely handy when the power delivered by this Inverter generator isn’t enough to run very powerful equipment.

It gives out 51.5 – 61 decibels of noise at 25% – 50% load. This is due to the US Forest Service certified spark arrestor and sophisticated muffler. Additionally, the generator is also EPA and CARB compliant.

A smart throttle gives room for variability in engine speeds based on the amount of load the generator carries at any point in time.

This can be likened to the idle control system. On zero load, the generator produces 51.5 dBA as compared to the 61 dBA produced on 50% load. At the feet of the Inverter, there’s a rubber isolation that helps in reducing noise and serving smooth operation. As a plus, the smart throttle plays a role in the fuel economy.

Its operations are dished out by Yamaha single cylinder 79cc OHV engine. The air cooling technology present allows the regulation of the generator’s temperature, thus, preventing extremes of the temperature range. The cast iron cylinder liner and steel camshaft of this 4-stroke engine do well to provide sturdiness to the generator.

The portable inverter runs for as long as 10.5 hours (25% load) on a single fill of the fuel tank. This tank can take in a maximum of 1.1 gallon. Gasoline, an easy-to-access fuel is the source of power compatible with the generator. The level of gas can be seen without hassles as a result of the fuel gauge’s presence. Also, the auto-decompression system decreases the engine’s compression to aid easy starting of the generator.

Another impressive feature on the generator is the oil watch warning system. This system showcases the oil level to avoid the damage of the engine and expensive repairs.

Pulse Width Modulation (PWM) is one sleek feature of its inverter technology that puts voltage stability at plus or minus 1%, and frequency stability at positive or negative 1%. As a result, the generator produces very clean and quality power.

Transportation and storage of this generator is pretty easy due to its 44.1 pounds lightweight. Once you purchase the generator, you get three years limited warranty from the manufacturer. Needless to say, this is one of the best inverter generators on the market.

  • Easy to use
  • 1,000 Watt Maximum AC Output/900
  • Among the top lasting models on the list
  • It has a noise absorbing glass wool for quiet operations
  • It comes at a steep price, considering the performance

WEN 56200i Inverter Generator

The WEN 56200i Generator is an inverter generator you can bank on for the delivery of quiet operations. This Inverter generator has been tailored for safe operations when camping, hunting, construction sites, tailgating or even as a backup power source. An ideal choice for the best inverter generators on the market that is portable enough to fit into the trunk of any car size.

The generator produces 51 decibels of noise at 25% load; a very impeccable one at that. The 79cc single cylinder 4-stroke engine powering the generator uses an Over Head Valve technology as well as air cooling technology to regulate the temperature range of the generator.

This engine helps in disbursing less than 1.2% sine waves of the THD at full load, making it safe to power sensitive devices like laptops, tablets, flat screens, etc.

Thanks to its inverter technology, the generator can produce very clean energy. The energy generated can be supplied through these outlets – two three-prong 120V receptacles, one 12V 8.3A DC receptacle and one 5V USB port.

Alongside the outlets found at the power panel, there are other exciting technologies present. You have the efficient Economy mode feature that helps in dropping the engine’s speed automatically once the load on it is reduced.

This not only reduces noise production, it also maximizes fuel efficiency, thereby saving extra money. There’s also the low-oil shutdown and overload protection indicator lights at the panel.

The running Watts of this generator is pegged at 1600, although it has a maximum of 2000 Watts upon ignition. Nonetheless, parallel capability makes sure that more need for power doesn’t get you stranded.

With the use of a parallel cable and adapter, you can easily connect the generator to another generator through the parallel connection to provide more output singly.

Turning on the inverter is pretty easy as the pull cord needs to be pulled gently. Immediately the generator starts running, and it can operate for as long as 6 hours provided the fuel tank is full. You get to smile to your pocket anytime you want to refuel the tank. There’s no other reason other than the economic 1 gallon capacity of the gasoline tank.

Given the firm structure of its portable design and the 48 pounds weight, its mobility is of little worry. At the top of the inverter, a holding handle is available while the base is anchored by rubber isolation feet. Its firmness is defined by the 18 inches length, 11 inches width and 18 inches depth.

Not to worry, the generator meets the EPA III and CARB compliance standards. It also comes backed with a 2-year limited warranty for technical defects. One of the best inverter generator money can buy.

  • It has 3,100 peak watts
  • It is Budget-friendly
  • Produces clean energy
  • Features three outlets and a USB port
  • Fuel economical
  • Not as durable as the other models

Best Portable Generators

Westinghouse WGen7500DF

This is one of the most versatile generators. Whether it’s for emergency power supply to a camp or tailgate party, you’ll find sufficient for your needs. With its high running watts of 7500 and 9500 peak watts, high-grade protective steel bars on top, large 6.6 gallons tank, the Westinghouse WGen7500 is an absolute beast of a generator.

It comes packed with deal breaker features you would want in a generator. This is a dual fuel inverter with fuel gauge to allow users to see the amount of fuel remaining in the tank.

This model has one of the most rated customer reviews and provides stellar customer service. So you have a product with a great company to answer all your questions. ‘

The Westinghouse WGen7500 comes with a lot of high-end features, so let’s take a look at some of the icing on the cake features below.

The Westinghouse WGen7500 is not a portable inverter generator but it prides itself with as EPA, CARB, and CSA Compliant which makes is safe to use in many locations. It even comes with a 3-year warranty to ensure you have little to fear for, an assurance that problems would get fixed without hassles.

The dual fuel functionality means you can use gas and propane to power up the machine. Interestingly, it utilizes a special “on the fly fuel” change to enable seamless switch of fuel even when the unit is still running.

Comes equipped with a push electric start, which means you can run your generator with a start of a button. Additionally, there’s a battery charger port to help increase your battery life. It also includes a remote start key fob to start your generator at a considerable distance that’s up to 109 yards away.

The Westinghouse WGen7500 has a 6.6 Gallon Fuel Tank with a run time of 16 hours.

This unit combines a 120/240V standard household outlets, which makes it easy to connect to your home for emergency, campsite or to power your Rv.

It is easy to use and intuitive features to protect the engine from damage by shutting down the engine when the fuel goes under its programmed standard of usage.

A wide and rugged tired is incorporated to allow you to ride over dirt and uneven terrain with ease.

Overall, after doing an extensive research on portable generators, the Westinghouse WGen7500 we easily ranked as our number 1 portable unit on the list of best inverter generators. It’s a perfect substitute for inverters if you need to power many appliances in a home or worksite.

Robust build quality

  • Dual fuel mechanism which can be switched from effortlessly even when the generator is running
  • Fuel efficient; With a 6-gallon fuel tank you are assured up to 16 hours of run time
  • Despite the weight, it comes with heavy-duty tires for easy transport.

The 64 decibels might be a bother for some.

Champion 4000W Inverter Generator

I think of this Champion 4000W model as a futuristic hybrid of a portable generator with an inverter. The result as the manufacturers boast is a 50% quieter and 20 percent lighter and more fuel efficient than the Champion 3500-Watt RV Ready Portable Generator.

The sound output is 64 dB from 23 feet away. Additionally, the machine produces 4000 starting watts and 3500 running watts. It includes a 2.9 gallon tank that could run for 17 hours with quarter load.

For the safety conscious users, the generator comes with the Eco-friendly mechanism; meaning there is less carbon emission for safe use. The touch panels include all the controls you’ll need for easy access to controls.

With many outlets; It has two 120A household outlets, 2V DC automotive-style outlet, and dual USB adapter. Not to forget, you can even connect your laptops, phones or any electric appliance to the adapter.

This model also includes an automatic voltage regular for safe use appliance. While it also uses a special auto shut-down feature when the fuel is low.

As far as build quality and aesthetics are concerned, the Champion 4000-Watt RV checks all the boxes. There are not too many downsides to this generator; the fact that the generator weighs 84lbs and excludes wheels is a turn off for some. Considering how hard it is going to be moving around. But if you have a helping hand to carry it around, then that wouldn’t be much of a problem.

In conclusion, this model is a really great model that’s lighter than traditional generators and includes an inverter for the production of clean energy. Although a bit steep on the price side, It works as intended and that is the most important thing you should consider. And if the price is expensive you should check with the inverter generators mentioned above.

  • The eco-friendly mechanism provides less carbon emission
  • Includes an inverter to produce a quieter performer, while also being more fuel economy than most traditional units on the market.
  • Expensive
  • It quite heavy and doesn’t come with wheels makes it very hard to transport without asking for help.

Best Inverter Generators Buying Guide

Should I keep it at a distance from my house?

Considering how loud these models can get, besides, it emits carbon dioxide which is injurious to health. It is advised you keep the generator at a considerable distance between 15 – 20 feet away from your house.

Afraid someone might steal it outside your house? Then don’t. You can build an enclosure to keep it while it’s running.

What are the advantages of a Portable inverter generator?

Fuel Efficiency

Most of the Inverter generator models are created with a special type of technology to adjust to the engine speed to produce only the amount of power needed.

Traditional generators run at 3600 RPM to produce 60 hertz of electricity. While portable inverters utilize throttling equipment to run at lesser RPMs maintaining the power at a stable frequency. In essence, this method significantly helps to reduce exhaust emissions and fuel consumption.


Portable generators are lighter and smaller than conventional models which makes them easier to transport. Compared to large models where transportation and installation pose a great disadvantage, portable models are a respite in such situations. As they as lighter, you can carry them in the back of your RV or Car without hassles.

Quiet Operation

In some parts of America, there is an acceptable standard of decibels allowed from an equipment. This restricts outright disturbance in quiet neighborhoods. Most inverters have their engine speed throttled reducing the noise created. Inverters also utilize dampening materials to reduce the impact of sound. For most parts, 60 decibels or less is generally accepted to be the maximum limit of sound that doesn’t cause noise pollution.

Parallel Capability

Some Inverter models allow you to connect as much as two models for double output. This is convenient especially when you need mobility & portability over large heavier generators. Yes, you can get more power by simply joining compatible generators together without sacrificing portability.

Noise Level Comparison In Decibels

Activities Decibels
Private office50
Normal speech 60
Vacuum cleaner70
Curbside on busy street80
Rotary mower 90
Heavy city traffic100
Chain saw110
Auto Horn120
Jet plane at 50 feet130
Siren at 100 feet 135
Threshold of pain140

Home Requirement

Unfortunately, most portable generators can’t power up your house. But this totally depends on the appliance you want to run. You can choose to power up some specific electric appliance, which of course have to be within the watts capacity of the generator.

Although joining generators on parallel capability can increase output that can likely power up load carrying appliances, you should choose specific appliance you want to be powered in case there’s an inadvertent power outage. Read more on the size of generator you need to run your house and whole house generators that can power heavy appliances.

Difference between a regular generator and an inverter generator?

Conventional Generators

Regular or conventional generators utilize diesel, gasoline or propane to power a motor attached to an alternator to produce electricity. They normally run at 3600 rpm despite the power load, this leads to a significant reduction in fuel.

Inverter Generators

These Units are produced with a special kind of technology which converts AC to DC voltage then inverted to clean AC voltage. This enables it to maintain a constant flow of current to an electric appliance, thus reducing fuel consumption.

How does the inverter work?

Inverters utilize the power produced by the generator which passes through some processes explained below.

The first step involves producing high voltage multi-phase AC power through the alternator. The AC (Alternating Current) is converted to DC (Direct Current).

The inverter follows some processes to convert the DC into AC, the result is a clean power that’s efficient and smooth. A microprocessor controls the speed of the engine as well as the process leading to a quiet & stable operation.

Are inverter generators worth the money?

Yes, Inverter generators are worth every cent you spend. They are quieter, portable, lighter than conventional generators. And what’s more? inverter generators offer carbon-less emission. If you are concerned about green house effect, then there’s no better way to show it than using inverter generators than portable generators which are louder and emit a lot of carbon emission into the atmosphere.

What can a 2000-watt inverter generator run?

Basically a 2000 watt inverter generator will power your laptop, Pc, microwave, Refrigerator/fridge and a couple of gadgets. It is important you know the starting watts and running watts of the generator to know the limit of electronic appliances you can run at once.


The Best Inverter Generators

To recap, the generators we’ve discussed today included:

  1. Champion 3400W 
  2. Yamaha EF2000iSv2
  3. WEN 56200i 

The Best Portable Generators

  1. Westinghouse WGen7500 Portable Generator
  2. Champion 4000W

Inverter generators are dependable sources of power irrespective of whatever load you wish to put on it. The generators provide the cleanest form of energy, thereby making electrical devices so safe to use.

Other than the clean form of energy, inverter generators offer benefits such as portability (ease of transport and storage), quiet operations (making your recreation delectable) and fuel efficiency (able to manage fuel is superb).

Importantly, the less noise production of best inverter generators is second to none. On the low side, inverter generators most times don’t provide as much power as conventional generators.

So, a functional analysis of your demands for power plays a vital role. In a nutshell, if you want to get the best from generators in the modern market, and enjoy every bit of it, an inverter generator is an excellent choice to consider.