best home generator

Best Whole House Generators Consumer Reports

Do you suffer from occasional power outages, and it’s getting intolerable? Is your current house generator not powerful enough to sustain a power outage? Then you have stumbled upon the perfect article for you. Thankfully, we have handpicked the best whole house generators money can buy.

Each of these models has some enticing features to look forward to. With these whole house generators, you will be able to run all your electronic appliances for several hours. We have also picked the sturdiest and durable models to make sure they are worth the investment.

Editor’s Recommendation : 5 Best Whole House Generators

Top 9 Best Whole House Generators Review

We know how challenging it can be to pick a whole house generator in this day and age. Hence, to make your decision easier, we bring you the top options reviewed.

1. DuroMax 12000 Watt Generator Review

We would like to start this list with the best home backup generator with a powerful motor and several remarkable features. This high-performance backup generator is powered by an 18 HP 457cc OHV engine. With this amount of power you will be to supply electricity to an entire house.

This whole house generator is most suitable for houses that consist of many electronic appliances. It can deliver up to 12,000 watts initially and 9,500 watts of power constantly when it’s running. This allows you to run electronic products that consume a lot of electricity, especially during a power outage.

The manufacturer has implemented dual-fuel technology to make sure it can run both on propane and gasoline. This gives you the added flexibility for picking a fuel that’s most convenient for you. The Duromax MX2 technology helps you get the most out of the 120-volt receptacle.

You can either run it on both 120 volts and 240 volts of electricity or just a stable 120 volts at full power. Moreover, this whole house generator is EPA and CARB approved.


  • 18 HP 457cc OHV engine
  • 12,000 W starting power
  • 9,500 W running power
  • Duromax MX2 technology
  • EPA and CARB approved


  • Fairly expensive

2. Generac 3500 Watt Portable Inverter Generator Review

Next up, we have this portable whole house generator that is definitely the quietest generator you will ever come across. In fact, this model is 40% quieter than most whole house generators on the market. Noise pollution is a very disturbing issue when it comes to whole house generators.

It has been tested by a third party to make sure it stands up to its promises. And it does! This whole house generator also comes with a durable construction that protects from long term damage. It is also portable enough to be carried to your workplace. This amount of mobility allows you to use it for recreational purposes.

Furthermore, it is capable of delivering 16% more power than regular whole house generators. It has an AC frequency of 16 Hz. And it is also equipped with an easy to read wattage meter, and a generator status update. They also show you the exact time remaining before it stops supplying power.

You can even keep a close eye on the fuel level. This power generator also allows you to run, stop and start the device with just a single dial. It even includes USB ports for charging phones and  tablets.


  • 40% quieter operation
  • Durable construction
  • Portable design
  • 16 Hz AC frequency
  • USB ports for charging phones


  • Motor may backfire sometimes

3. DuroMax Gas Powered Portable Generator Review

DuroMax XP8500E Gas Powered Portable Generator-8500 Watt Electric Start-Camping & RV Ready, 50 State Approved, Blue/Black

The next whole house generator comes from the same renowned manufacturer as the first product on this list. You must be wondering why this generator brand is so popular. The answer is simple. They provide large amounts of power constantly without facing any major issues in the long term.

This backup generator is run by a robust 16 HP motor, that can be instantly turned on with an electric start button. The electric start grants you the ability to switch it on whenever you need it. It also comes with a pair of wheels that let you change its position effortlessly.

The generator also comes with a wide range of tools such as DC charging cables, spark plug, oil funnel, and a handle kit. It is equipped with a spacious fuel tank that can contain up to 7.9 gallons of gasoline. As it runs on gasoline, you can expect it to run longer than most whole house generators on the market.

It acts as a sustainable power source that can deliver a maximum of 8.500 watts and 7,000 running watts. With this amount of power, you can easily run large appliances such as refrigerators and even air conditioners.


  • 16 HP motor
  • Electric start button
  • Can contain 7.9 gallons of gasoline
  • Peak wattage of 8,500 watts
  • Tank can contain 7.9 gallons of gasoline


  • May not start if turned off for too long

Buy on Amazon

4. Champion Power Equipment Dual Fuel Portable Generator Review

Speaking of entire house generators, this next model can deliver enough electricity to power up large apartments or suburban home. This whole house generator can deliver 7,500 watts constantly and can run on two types of fuel – propane, and gasoline. Plus, there are several other features that come with it.

Unlike most whole house generators, this model comes with 1.2 quarts of oil inside the tank. Therefore, you can start using the generator right out of the box. Moreover, they have introduced a new and clever feature that turns off the generator automatically when the fuel gauge is low.

The 439cc Champion engine delivers more power to the generator. They have also included an Intelligauge feature that tells you how long the generator will be running. You can also monitor the amount of fuel left in the tank. The backup generator is encased in a steel frame for added durability.

This whole house generator can deliver 8,400 starting watts and 6750 running watts on propane. When running on gasoline, it can deliver 9375 and 7000 watts respectively.


  • Runs on two types of fuel
  • Low fuel turn off
  • 439cc Champion engine
  • Durable steel frame
  • Intelligauge


  • Occasional oil leakage

5. Westinghouse Outdoor Heavy Duty Portable Generator Review

This next product is a highly durable and intensely powerful backup generator that can deliver immense amounts of wattage. It offers a running wattage of 9,500 and a peak wattage of 12,500. Needless to say, that’s enough power to run an entire house for more than 12 hours constantly.

It has a large fuel tank containing 6.6 gallons of gasoline, which is also equipped with its own fuel gauge. This backup generator also comes with a 457cc Westinghouse 4-Stroke OHV Engine for standard house connection. Also, they have included a 120/240V 14–50R receptacle for RVs and a transfer switch ready 120V L14-30R.

Not only that, they have also added two 5V USB ports for charging smartphones and tablets. You won’t get this level of versatility in any other product of its kind. This backup generator is powered by a robust 457cc Westinghouse 4-Stroke OHV Engine, which is also proof of its unmatched reliability.

It also comes with several other tools such as the remote start key fob, oil funnel, a tool kit, and a 12V battery charger. A low oil shutdown feature and a digital hour meter are added as well.


  • Peak wattage of 12,500
  • 457cc Westinghouse 4-Stroke OHV Engine
  • 12V battery charger
  • Multiple bonus tools and accessories
  • Low oil shutdown feature


  • Moderately expensive

6. Rainier Dual Fuel Portable Generator Review

Coming in at number 6 is a dual fuel generator that’s both portable and powerful. It’s one of the most top rated whole house generators on the market with peak wattage of 12,000. The generator can also deliver 9,500 running wattage when powered by gasoline. Thankfully, it can also run on propane.

However, the peak wattage is lowered to 10,800 when you’re using propane as fuel. It also comes with a 6.6-gallon fuel tank, which is also equipped with a fuel gauge. Moreover, it has a clever feature that automatically shuts off the generator when the fuel is low. Therefore, it reduces the chances of backfiring.

Starting up the generator is also fairly easy due to the one-touch power switch. If that doesn’t work, there is also a backup recoil start for an easy startup. This backup generator is equipped with a VFT display, which shows the volts, frequency, and standby time of the generator.

It is powered by a robust 457cc OHV 4 Stroke Rainier Engine that can deliver constant power for 17 hours. This also comes several different outlets to connect to your house or an RV.


  • 17 hours backup
  • VFT display
  • 457cc OHV 4 Stroke Rainier Engine
  • 12,000 peak watts
  • One touch power switch


  • Consumes a lot of propane

7. Durostar 10000 Watt Electric Start Portable Generator Review

Another worthy addition to this list is this versatile whole house generator that comes with a plethora of features to look forward to. This heavy-duty generator is powered by a DuroStar 18 HP 440cc OHV engine that turns off automatically when there is a lack of fuel in the tank.

This will indicate exactly when to refill the tank, so your house will never run out of power. The 8.3-gallon tank capacity makes sure you don’t have to refill the tank repeatedly. This efficient whole house generator can deliver a peak wattage of 10,000 and 8,000 running watts.

That’s enough power to run several ceiling fans, lights, laptop and electronic appliances. This generator also works on Durostar MX2 technology, which allows you to get the best out of its powerful engine. You can even choose to run this generator to run on 120 and 240 volts simultaneously.

It includes several other helpful tools such as DC charging cables, an instruction manual, and a wheel & handle kit.


  • 3 gallon tank capacity
  • 10,000 peak watts and 8,000 running watts’
  • Durostar MX2 technology
  • DC charging cables and instruction manual
  • Runs on 120 volts and 240 volts simultaneously


  • Wheel bars are not long enough

8. A-iPower 12,000-Watt Gasoline Powered Generator Review

We continue this list of whole house generator reviews with this exceptional model that takes the least amount of effort to turn on. It discards the use of a key and instead uses a one-touch switch for the startup. This allows you to turn on the generator whenever you want to with just a push of a button.

The whole house backup generator is equipped with a 7-gallon tank that is suitable for only gasoline. It has a heavy steel construction, which protects it from damage caused by heavy-duty usage. This backup generator can serve you well for 9 hours straight when running at 50% load.

It also offers you 12,000 starting watts every time you turn it on (even after several years). Moreover, the generator can provide 9,000 running watts as well. They also included an electric start that makes your job easier. What really sets it apart is the 9.5-inch wheels that offer you better mobility.

You will also find a built-in DC adapter plug if you wish to charge the generator battery. It’s also possible to connect to a USB adapter so you can charge your phone as well.


  • 7 gallon tank
  • Heavy steel construction
  • 9 hours of backup
  • 9,000 running watts
  • DC adapter plug


  • Relatively pricey

9. WEN 11,000-Watt Dual Fuel Portable Generator Review

The following whole house generator comes with a convenient feature that allows you to use both gasoline and propane as fuel. When you’re using propane, you can achieve optimum wattage of 11,000 and a running wattage of 8.300. In terms of propane usage, you can expect 9,500 and 7,500 watts of power respectively.

Moreover, you can easily switch between different power surges with just a twist of a dial. This effective whole house generator also allows you to switch between 120 volts and 240 volts with ease. Due to this feature, you can easily achieve emergency backup within the blink of an eye.

The manufacturers have also added an electric start for quick startups during times of need. Just turn the key, and your whole house generator will be ready to go! This powerful model comes with a 457cc 4-stroke OHV engine that delivers enough power to run all your household appliances for a long time.

To top it off, they have equipped it with a 6.6-gallon fuel tank that offers 8 straight hours of power backup.


  • Switch between power surge with a dial
  • Delivers both 120 and 240 volts
  • Powered by 457cc 4-stroke OHV engine
  • 8 hours of backup
  • 6-gallon fuel tank


  • Occasional battery issues

Things to Consider Before Buying Best Whole House Generators

Although you might know all about the different kind of generators available on the market, it’s still not enough to make the right decision. Whole house generators have certain features that you need to keep an eye on while purchasing. We have discussed these features in detail below.

  • Automatic Shutoff

The first thing you need to make sure of is if the whole house generator you want to buy comes with an automatic shutoff feature. This will ensure that the generator isn’t running on low fuel as it automatically turns off in that case.

On the other hand, this feature can also turn on the device by itself in terms of a power outage.

  • Type of Enclosure

You might already be aware of the fact that a whole house generator is usually placed outside your house. This means they would have to endure the damage caused by different environmental conditions over the years. Hence, it’s only wise to pick a generator that comes with a heavy duty steel frame.

best whole house generators

A thicker enclosure will also reduce the amount of noise it gives off. It’s also ideal to choose a material that is resistant to rusting and corrosion.

  • Generator Capacity

Before you buy any whole house generator, you first need to consider the type of house you live in and the amount of power you need. It would be foolish to buy a model that generates more electricity than you need. Similarly, a low powered generator won’t do you any good if you own a large suburban home.

Smaller whole house generators come with a power capacity of 20kW to 50 kW. There are also some generator power calculators online that will help you determine which generator is most suitable for your household.

Final Verdict

We have finally reached the end of this guide on the best whole house generators. Make sure you go through all the different features of all the models we reviewed. That’s how you will be able to know which of the features appeal to you the most. However, you shouldn’t only base your decision on that.

Make sure you keep the key factors in mind when you are out purchasing a whole house generator. To get a better idea about which model to choose, you should also measure the square footage of your household. The number of electronic appliances in your house should also be taken under consideration.

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