Generac 7033 11/10kW Air-Cooled Standby Generator Buyer’s Guide is an independent review business. I am not affiliated with any manufacturers and do not accept paid reviews. When you buy through my links, I may earn a commission which helps me purchase more generators for testing. - Scott Krager

Last Updated on October 18, 2022 by Manager Access

You may not think about it all the time, but your home could lose power at any moment. There are dozens of appliances that rely on your electricity, including computers, refrigerators, stoves, and phone chargers. If your home were to run out of power and there was no backup, it could be detrimental to your belongings. That last thing you want is everything in your refrigerator spoiling.

generac 7033 generator review

This is where a standby generator comes in. Standby generators are exactly what they sound like: they standby until they’re needed.

The Generac 7033 11kW generator (powered by propane and natural gas) is one of many standby generators on the market. But how good is this unit with, say, sensitive electronics and appliances affected by surges in power? Is a transfer switch (Generac brand) sold separately, or is it included?

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We’ll answer these questions and more in this buyer’s guide for the Generac 7033 before you add to cart.

Features and Functions

Powerful Engine

internal part of a machine

The Generac Guardian 7033 11kW is a Generac OHVI G-force engine that can produce 11kW of power on propane and 10.5kW on natural gas. It is a well-built pressure-lubricated engine capable of handling plenty of appliances and electronics.

Generac s G-force delivers best in class power for your whole house built for the rigors of generator use, resulting in better power consumption and power quality with less maintenance.

Fitted Automatic 200 amp Transfer Switch

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Included with and fitted to the Generac 7033 11/10kW air-cooled standby generator is a 200 amp NEMA 3R whole-house smart automatic transfer switch (Generac brand), which is rated for indoor and outdoor usage.

Using this 200 amp transfer switch, the unit will start automatically within seconds in case of a power outage in your home or neighborhood. This gives you peace of mind knowing that your home is protected by this transfer switch in case of an emergency.

Many other standby generators do not have the automatic transfer switch included, and it’s typically sold separately, but this is not the case with Generac.

Multilingual LCD Display

Generac s evolution controller features a multilingual LCD display that gives you valuable information about the following:

  • Battery
  • Maintenance intervals
  • Fuel consumption
  • Transfer switch control

These metrics help you handle sensitive electronics and appliances.

Sturdy Exterior

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This 11/10kW generator is enclosed in a 3R aluminum outdoor enclosure with a RhinoCoat powder-coated finish, which protects the unit against the elements (extreme temperatures, UV rays, and water damage). This finish helps make the unit run more efficiently, delivering best in class performance because it is protected from any damage.

Smartphone Control

two hands holding a smartphone and texting

You can monitor the status of the Generac 7033 by using your smartphone, tablet, or PC. The Mobile Link Wi-Fi remote monitoring lets you monitor your unit’s current operating status, maintenance schedule, historical information, and more.

The Mobile Link Remote WI-Fi device is pre-installed on all Generac Guardian series generators, so all you must do is download the app, create an account, and connect your unit.

True Power Technology

Generac’s True Power Technology delivers best in class clean power with less than 5 percent harmonic distortion so appliances can run smoothly. Sensitive electronics like computers, stereos, and refrigerators are susceptible to surges and often run inconsistently when running from a generator.

However, True Power Technology delivers best in class performance and minimal harmonic distortion for clean, smooth operation when using a Generac unit.

Engineered and Built in the USA

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All Generac generators and engines (including the transfer switch) are built in the USA. This means that if you need to send your Generac off for repairs, you can do so locally and not wait weeks or months to ship it off for repairs and then get it back. It also means that Generac jobs are made and stay in the USA, stimulating local economies.

Generac 7033 Air-Cooled Standby Generator Warranty and Extras

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Generac offers an extensive warranty for its automatic standby generators. The warranty (5-year limited) gives you the reliability you need to depend on your investment for years.

Once you register your new standby generator, the warranty covers parts, labor, and limited travel for the first two years. For the third year, the warranty covers parts (no labor), and the 4th and 5th years cover major parts components for the unit.

This warranty ensures that any manufacturer defects in or on the unit will be covered and fixed by Generac themselves. Although this warranty does not cover normal maintenance, it may show that your unit will have less overall maintenance than any competitive generator on the market since you’re replacing parts that were damaged due to the manufacturer.

Customer Ratings and Reviews

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The noise level is about 63 dba, which is on par with most generators of this size. Just be careful with placement and stay aware of the sound it will make when it kicks on.

Positive Reviews

This was one of the only issues people had with the Generac 7033 generator. Generally, people say that home standby generators are reliable require less maintenance than they thought it would. They have no issues setting it up for use, and it’s got best in class power quality for their needs. One reviewer on Amazon stated that their power went out in the middle of January in Massachusetts for 8 hours, but there were no issues even in the middle of the winter.

Other reviewers rave about how the generator can support all of their appliances and electronics without fail. Another reviewer on Amazon stated that the Generac 7033 ran their water well, heat, hot water, microwave, and other appliances all at once with no issues. Other reviewers rave that it’s capable of handling all their appliances as well, with several people commenting on how quickly it powers on when the power goes out.

Finally, we must comment on Generac’s customer service. Their customer support comes with the warranty, so you can contact Generac directly if you need help. The customer support is friendly and informative and will help you figure out how best to solve your problem. The 24/7/265 customer service is one of the highlights of the positive reviews for this generator.

Pros and Cons of the Generac Guardian 7033 Home Standby Generator


Now that we know what other people think about the Model 7033 generator, let’s go over some pros and cons:

  • 5 year limited warranty
  • Dual fuel with natural gas and propane fuel consumption
  • 200 amp transfer switch and outdoor enclosure (smart switch included)
  • Reliable and requires less routine maintenance than other generators
  • Very low total harmonic distortion for clean, smooth operation that delivers best in class power quality
  • Well-built pressure-lubricated engine capable of handling sensitive electronics and appliances
  • Generac s G-force engine is built for the rigors of generator use, resulting in power that’s more reliable and requires less routine maintenance than competitive engines
  • Corrosion-resistant aluminum enclosure
  • Whole house protection with automatic standby in case of a power outage
  • Remote monitoring through a mobile app
  • Generac s Evolution controller features a multilingual LCD screen

This Generac generator has a lot of pros compared to other home standby generators. The best in class power quality shows when you compare this generator to others of the same power and size.


Any product will have some cons in addition to the pros. Of all their standby generators, the Generac Guardian Model 7033 11kW has the least cons.

  • Large and takes up quite a bit of space
  • A bit noisy at 68 dba

As you can see, there are less than 5 total cons for this Generac generator. Model 7033 is built for handling the rigors of generator use, resulting in power supreme to the competition.

Frequently Asked Questions

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We know that you might have questions about the model 7033 11kW generator, and we’re here to help. Here are the most commonly asked questions about the Generac 7033 generator. If you have other questions, feel free to contact us so we can help!

What is harmonic distortion, and how can this generator make it less than 5%?

Total harmonic distortion (THD) is a measure of the harmonic distortion present in a signal. Harmonic currents that are produced by non-linear loads go back into power supplies and can interact adversely with the power system equipment. The Generac 7033’s True Power Technology delivers the utmost in reliability because it works to counteract total harmonic distortion and reduce it to less than 5 percent.

What kinds of fuel can you use with this generator?

Generac s G-Force engine can use both propane and natural gas to handle the rigors of powering a home.

What doesn’t the 5-year limited warranty cover?

The 5-year limited warranty does not cover costs of regular maintenance, damage to or failures of the generator due to shipping or accidents, or damage due to the use of non-Generac parts. It also does not cover failures due to normal wear and tear of this Generac generator.

well-lighted RV with a person sitting on top

What is included with the purchase?

The purchase of the Generac 7033 11kW includes the 7033 11kW generator itself with the RhinoCoat powder-coated finish and aluminum outdoor enclosure + smart transfer switch.

How well does this generator stand up to inclement weather?

This generator was made for inclement weather. It requires less maintenance than any competitive generator, plus the aluminum enclosure is made for handling the rigors of storms that can turn the power off. The generator (in addition to the aluminum enclosure) has extra protection with the 200 amp NEMA 3r aluminum transfer switch, so you know it’s protected in case of emergency.

Verdict: Should You Buy the Generac Model 7033 Generator?

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We think that this unit is a strong, reliable, and useful machine to have. With the 200 amp automatic transfer switch, the unit will power on automatically if there’s a power outage.

The Evolution controller features a multilingual LCD screen so you can monitor your generator. The NEMA 3r aluminum outdoor enclosure keeps the entire unit safe from damage. Generac’s True Power Technology delivers best in class performance from all their generators. This generator has the best power quality with less maintenance than the competition.

This generator is discontinued, unfortunately. However, you can still buy it from other third-party vendors. We recommend you consider buying it because it’s a great generator to have in case of emergency.

Generac 7033






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