Best Whole House Generators Reviews

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Having a reputable power backup device is a smart idea. Generators become convenient for use in the case of a power shortage. They then act as an option to keep the power running.

Power blackouts are frequent and inevitable in areas where natural catastrophe occurs. For instance, floods and windstorms hit at any time. Thus, consider investing in one of the best whole house generators in 2020.

You may have the idea of selecting a house generator according to your needs arise. Both portable and standby generators are commonly used for power supply. With a standby generator, you’re dependable to a portable generator.

Therefore having a lifelong machine will provide you a steady and compatible power supply for a prolonged-term. So, stay indoors, watch a movie, have your online work done, and keep your electrical devices operating.

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The 10 Best Generators for Home – In Depth Reviews

Recap: Best Whole House Generators


1. Generac 70432 Home Standby Generator

Home Standby Generator

Having a standby brand, there is an automatic power backup for your home during a power blackout. Generac generator has a potent engine, and it’s built to last for long.

This unit requires less maintenance as compared to other brands. It has an instant transfer switch, so no need to go outdoor to have it turned on.

Your activities would not go still with the power outage, and your appliances systems will stay lightened up and running even in the worst conditions.

The Generac 70432 has a technological make, which makes it acceptable for use. It has a linked mobile remote for monitoring it.

You, therefore, require a mobile gadget to enable you to keep a look at your brand from any specific area you would be. This generator is securely made in that its made of a powdered rhino coat coated aluminum hence making it safe.

Also, it’s smart in terms of adaptable controls. There’s a multilingual liquid-crystal display (LCD) to allow you to monitor the battery status.

LCD will enable track the upkeep intervals to make sure the generator is in a perfect operating state. The generator has a self-test mode, which lets itself to test at lower revolutions per minute (RPM).

Pros: Cons:
  • A strong well-build engine
  • Requires less routine maintenance
  • Technology makes
  • Durable
  • Offers excellent performance
  • Requires regular check


Generac whole house generator is easy to use. Its work is flawless. It’s a nice choice when your home is experiencing power outages. The ability to power household appliances is the main reason why most users prefer it.


2. Champion 8.5-kW Home Standby Generator 

Home Standby Generator

The champion generator has experienced years in providing substantial and dependable power. It automatically starts running immediately.

The power goes off and sets out back to standby when the power is reinstated. It has an automatic transfer switch with a 50-Amp rating. With this switch, there are several circuits to provide flawless power at your house.

The 8.5-kW unit is dominant. It provides 8500 watts of non-stop power on propane, and on natural gas, 7500 watts is used. Since no refueling, manual operation is not applied hence you don’t need to have an extension cord

Additionally, it’s convenient for use. This entails the function that it starts automatically as a result of a power outage. Therefore you need to have an exercise at least once a week on the generator by testing its function. This is to ensure that it’s ready to use all the time.

Pros: Cons:
  • Supplies power 24/24 in the house
  • Less noisy
  • Features transfer switch automatically
  • Works well with sensitive devices and appliances
  • Great in performance
  • Not that great for larger appliances


For those who have been looking for dependable and substantial power, Champion 8.5-kW is the real powerhouse. It has a switch that allows you to control the power in the house. In fact, the user will enjoy flawless power.

3. Briggs & Stratton 40630 17kW w/ 200 Amp Standby Generator 

Briggs & Stratton generator typically has a satisfying fact that your home operations will take place frequently. Just like other whole house emergency generator.

This brand also provides dependable and automatic power in case of blackouts. It has a transfer switch with 200Amp. This rating makes it applicable to both outdoor and indoor activities.

It adapts to appliances with increased demand, like an air conditioner. It’s able to adapt to this by having a Symphony II power management condition, so your home is well managed. Therefore, having this smaller and affordable generator, you’re saved thousands of dollars than it could be having a larger unit.

17kW generator has a base and enclosure made of galvanneal steel, to resist any rust. It’s covered by a powdered coating to safeguard it from wearing out.

The generator also has a liquid-cooled engine to deliver the services expected by the homeowner. During installation, it plays a role in enhancing the easy transformation between liquid propane and natural gas.

Pros: Cons:
  • Useful for both outdoor and indoor activities
  • Affordable and portable
  • Easy installation
  • Uses both natural gas and propane
  • Satisfying operation
  • Not cheap


Briggs & Stratton 40630 is a lightweight hybrid generator. More than that, it’s fuel-efficient and innovative to deliver plenty of power. 40630 is engineered to produce 50 percent less noise as compared to conventional generators.

So, be assured of quiet performance, clean energy output, and feature-packed design.

4. Kohler 20RCAL-200SELS 20kW Standby Generator

Kohler whole house generator is wired to the fuel system, an electrical board, so it starts operating at any time the power goes off. At any time you are involved in your outdoor activities; reliable power is of key importance.

This is a powerful option to keep your activities and needs at par. Significantly, it’s backed up with a five-year warranty and an enclosure corrosion-free with perfect durability.

Every this kind of generator has an exquisite engine. The engine is built to surpass the demands of power. The engine is designed to withstand harsh conditions. It’s made of hydraulic valves meant to withstand extreme weather conditions.

It has a quick response in case a power outage occurs to keep your operation running normally. It takes a short period of approximately 10 seconds to keep the power on.

Just as the electricity, kohler home generators remarkably powers your alternating current (AC) and also main appliances such as oven to keep them operating. Power ran by the generator restores to 5-ton appliances.

Pros: Cons:
  • Tailored with quiet technology
  • Offers clean power
  • Lightweight design
  • Has less than 4 percent total harmonic distortion
  • Free lifetime support from the manufacturer
  • Instructions seem to be unclear


Kohler 20RCAL-200SELS incorporates a top-notch quality design, weather-resistant exterior, and strong force engine to give the classical power to household appliances. Along with the sleek design, the unit is smartphone-enabled backed with safety.

5. Kohler 14RCAL-200SELS 14kW Standby Generator

There’s a lot to having a standby generator at your backyard. It provides confidence that your home operations will run uninterrupted despite the bad weather condition.

It made of metal –like material, and the engine is a 4-stoke type. Additionally, it has a control system with a low speed, hence saving on fuel and reducing noise.

With a perfect automated voltage regulator, the performance of the generator is optimized. This does not surpass a 5% total harmonic distortion (THD) for subtle electronics. This initiates the increase of motor ability to operate.

The charging system has an independent 3-staged battery charger to optimize the lifespan of the battery. These involve three stages, absorption stage, float, and bulk stage.

At times, rust may occur on the generator, and to curb the situation, an enclosure resistance to corrosion is of great use. It’s made from galvanneal steel hence resisting rust.

Pros: Cons:
  • Easy installation (automatic transfer switch)
  • Comes with a 5-year warranty
  • Ultimate performance
  • Durable to offers many years of service
  • Has safety features
  • The generator is heavy


It’s rare to get the best standby home generator as Briggs & Stratton. The unit delivers more power at an affordable price point and modest size.


6. Generac Power Systems 7228 Generator

Generac 7228 is number one in providing the automatic backup power most people need to protect your family and compound during power outages.

It features a FREE Mobile Link that allows you to inspect and monitor the status of the unit on your computer, phone, or tablet. It has been tailored to offer an automatic solution to all your power problems.

The well-built and top-notch quality generator uses Generac True Power Tech to deliver clean power in its class. This ensures a safe and smoother operation for all your sensitive appliances.

Also, it’s packed with a more reliable circuit with unique controls to enhance user convenience.

The model features a G-Force Engine that is pressure-lubricated. It is capable of handling rigors of unit use, resulting in more reliable power.

The generator requires less maintenance as compared to other competitive engines. I suggest it because you’ll walk away with a 5-year warranty.

Pros: Cons:
  • Variable speed operation
  • Well-built for durability
  • Requires less maintenance
  • Offer reliable and clean power
  • May force you to hire a professional during installation


The Generac 7228 is a standout when it comes to power and wattage. You can adjust the power you need on your kitchen appliances, tools, and sensitive devices. It’s made durable to offer services for years.


7. Westinghouse WGen7500 Portable Generator

Portable Generator

Using your standby generator should be simple and easy, that’s why excellent Westinghouse WGen7500 is here. The device is designed with a one-touch push-button with a remote start key fob that conveniently helps you to use it easily.

With a harnessed ground-breaking tech, the unit comes with a user-focused design to solve power outages.

Most importantly, the generator comes with a transfer switch ready, intuitive control panel, and water-resistant GFL outlets. This combination makes it a great choice for your DIY projects.

With four 240V perfect household outlets, the generator is suitable for emergency home backup. You can even power your RV travel trailer.

Easy maintenance is another outstanding feature. Westinghouse engine is strong to run at approximately 18 hours. Combined with built-in ffuel type and Auto-Low Oil Shutoff.

The device is conveniently easy to maintenance and use. Backed by a 3-year warranty, you’ll also enjoy the best services from the manufacturer.

Pros: Cons:
  • Perfect for DIY projects
  • Designed with advanced technology
  • It’s portable
  • Easy to use
  • Excellent performance
  • Produces more power
  • No serious problem identified


With the good reputation of the Westinghouse brand, be assured of getting a top-notch quality portable generator. The unit is 7500 rated and 9500 peak watts. It should be easy for you to use and set up.


8. DuroMax XP12000EH Portable Generator

Portable Generator

Engineered for versatility and power, DuroMax XP12000EH is a powerhouse. It offers the reliability needed for a whole house backup generator in a portable, compact size.

This is backed with 12,000-Watt of power. The device is perfect for running watt essential home appliance and emergency events when there are power outages.

Still, it can run central air conditioning systems-hence it can be crucial for warm climates. The unit features a sturdy 457cc 18HP OHV automatic engine that is fully loaded to supply 12,000W of continuous power.

Of importance, it will deliver plenty of power. Therefore, this device can tackle heavy loads from refrigerators, lights, amperage power tools, and home conditioners.

With XP12000EH, you can power everyone everywhere. It’s CARB and EPA approved for use.

Pros: Cons:
  • Portable and compact size
  • Offer plenty of power
  • Can power multiple appliances
  • 3-year warranty
  • Expensive


DuroMax XP12000EH is engineered for freedom, performance, and flexibility. This unit comes with smart features like a dual-fuel engine, portable, and compact size. It’s a decent choice for charging essential home appliances.


9. Rainier R12000DF Dual Fuel Generator

Portable Generator

Whole house standby generator review will not sound complete if we omit Rainier R12000DF. Like other standby models, this one comes with dual fuel of 1200W peak and 9500W gasoline plus 10,800W peak and 8550W propane. It also has an electric start for convenient use.

Rainier R12000DF is so powerful to power household appliances. It’s a generator that you can turn to during power outages. It will pretty deliver unlimited power supply in your home. It delivers wattage with low harmonic to ensure the safety of your devices.

The easier and smart controls make monitoring and inspecting the battery status easy. I would recommend it now and then. Get it with that friendly price tag.

Pros: Cons:
  • Designed with advanced technology
  • Smart controls
  • Offers safety to appliances
  • Budget-friendly
  • Convenient to use
  • Its durability is questionable


Being a more and smarter technologically-advanced backup generator for house allows the user to set up and use it with ease. It made durable and came with dual fuel of propane and gasoline.


Key Things to Consider When Choosing the Best Whole House Generator

Whole House Generator

There are certain things you should focus on before adding a whole-house generator to the cart. This buyer guide makes it easy for you.


Noise Level

You’ll find whole-house generators that come with special features to ensure they’re less or not noisy. Some units are extremely quiet such that you can’t even notice that it’s operating.

Choose the generator that’s housed in a case and have sound-dampening lining. This ensures generators work less noisy and no louder than 59db. Despite that standby generator is less noisy, never miss to check out its decibel rating.


Transfer switch

It’s equally important to focus on the transfer switch. You can easily install a manual switch to control your portable generator. However, if you’re going for a whole-house generator, then it features an automatic switch that helps you to detect power outages.

It turns the unit automatically. In most cases, a 200-amp switch is perfect for your home. Most models in our list come with both 100-amp and 200-amp switches. So, when selecting, match the transfer switch amps according to your needs.


Portable Vs. Standby Generator

One thing, choose between a portable and home standby generator. Both models perform the same thing, but they differ in some aspects. Noticeably, portable generators are lightweight and easy to transport.

Contrary, standby generators are stationary. Also, portable generators are not only louder but also produce less power than whole home backup generator.

Additionally, home standby generators come with insulated weatherproof housing hence safe. They start up automatically, while you must turn on portable generators manually. Besides, standby models are expensive but can serve you for days or weeks.


Power Output

What’s the intended use? Be aware of the household backup generator you’ve, and you want to power up. Then, select the model that can run those items and appliances during power outages. Approximately, an 8KW generator will serve power to the whole house. However, you’re recommended to select beyond 10KW.


Safety features

Carbon monoxide leakage is very high in some models. That’s why you must choose one with ideal features. For one, it should feature a power-transfer switch where you connect a 3-prong cord and circuit breaker. Beyond that, the fuel source should be well sealed with a container to avoid leakage.



It’s good to note that models don’t come with the same length of warranty. A whole-house generator with a lengthy generator is worthy.

Since you’re investing 4000 dollars or more, go for a longer warranty. Some even offer a 10-year warranty and excellent customer service. Other manufacturers give a 5-year warranty.


Best Home Backup Generator – Buyer’s Guide

Whole House Generator

What Safety Measures Should I Take When Using My Full House Backup Generator?

  • Always maintain the generator distance from the house
  • Avoid storing the standby generator in the closed area
  • Read and follow all the instructions given thoroughly
  • Make sure your hands are dry when touching your generator
  • Always switch off your generator first every time you’re refilling and allow it to cool


Is It Important to Focus on THD Rating Then Purchasing a Generator?

Absolutely yes, it’s critical to consider the THD as one of the main factors. This will give you a grim light on the safety of the unit.

Also, it’s that time can power most sensitive devices fear-free. Keep in mind that the THD should be less than 5%.


How Long Will a Standby Generator Last?

The lifespan of a full home backup generator depends on the quality of the material used to construct it. Also, the frequency and quality of maintenance matter a lot.

To be specific, the average lifespan lies between 12 to 15 years under normal standby conditions.


Final Verdict

If you live in an area where power outages are regular, then it’s high time to shop for the best whole house generator. Owning a perfect model in your home may seem tricky, but our guide makes it simple.

We’re happy to know that you’ll have no problem when making a buying decision. Always ensure to buy the generator from a reliable and reputable manufacturer. Utterly important, know that you’ll install the unit outside your home.

Our winner when it comes to home backup generator systems is none other than Briggs & Stratton 76107. It’s dual 200-amp transfer switch, and automatic one makes it a standout.

Made by a big company that’s also reputable for motors and engines, this model works well at home. Lastly, it runs a silent operation. I recommend it as the perfect choice.


Bob Stevens

Bob Stevens

Hi, I'm Bob Stevens. I spend a lot of time working with power generators and power tools. In my spare time, I like to write about my hobby.

Bob Stevens

Bob Stevens

Robert K. "Bob" Stevens was a British-born American photojournalist for the Sun, a subsidiary of American Media, located in Boca Raton, Florida, United States. He was the first journalist killed in the 2001 anthrax attacks when letters containing anthrax were mailed to multiple media outlets in the United States

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