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Generac Guardian 22kW Home Standby Generator - Automatic Whole House Backup Power for Storms, Emergencies, and Outages, WiFi Enabled, Runs on Natural Gas or Liquid Propane, Quiet Operation

  • Based on 454 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Oct 19
Order within 16 hours and 29 minutes
Available payment plans shown during checkout

Pattern Name: Generator


Style: 22kW


Features

  • Remote Monitoring Anywhere: With Generac 7042 22kW Mobile Link Wi-Fi connectivity, effortlessly track generator performance from anywhere. Stay updated on status and maintenance alerts, ensuring peace of mind even when youre away
  • Quiet-Test Self-Test Mode: Unlike other brands, our generators run quieter during the self-test mode thanks to the lower RPM operation, saving fuel while maintaining peace and quiet for your home
  • Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers lasting performance and peace of mind, ensuring your investment in a Generac transfer switch will serve you well for years
  • High-Quality 22kW Power: True Power Technology delivers clean, stable 22,000 watts with under 5% harmonic distortion. Generacs low-maintenance engines run quieter and use less fuel for efficient, reliable home power
  • Crafted for Excellence: Proudly engineered and assembled in the USA, our generators stand as testament to quality and craftsmanship. The purpose-built G-Force Engine is designed to handle the demands of usage, ensuring reliability and reduced maintenance
  • Easy Installation: Generac recommends your new Home Standby Generator to be installed by a certified and licensed electrician

Description

As the 1 selling home standby generator brand, Generac's Guardian Series® generators provide the automatic backup power you need to protect your home and family during a power outage. Now coming with FREE Mobile Link™, allowing you to monitor the status of your generator on a phone, tablet or computer from anywhere in the world. Connected to your existing LP or natural gas fuel supply, it starts within seconds of sensing power loss - automatically - and runs for as long as necessary until utility power returns. Choose from just enough power to cover essential circuits or whole house coverage. Generac's Guardian Series offers benefits that few competitors can match. Engineered and built in the U.S.A., the new lineup of home standby generators are engineered to save you money on installation while offering the same reliability and peace of mind you get from all Generac home standby generators. Features that simplify the process for our installers include removable door panels, a base pad that requires minimal ground preparation and more efficient wiring techniques that save time on installation. Innovative engine design and rigorous testing are at the heart of Generac’s success in providing the most reliable generators possible. Generac’s G-force engine is purpose-build, capable of handling the rigors of generator use, resulting in power that more reliable and requires less maintenance than any competitive engine. All backed by 24/7/365 customer support and a nationwide dealer network of more than 5,000 strong, the best in the market.

Brand: Generac


Wattage: 22000 watts


Fuel Type: Natural Gas or LP Gas


Power Source: Natural Gas or LP Gas


Recommended Uses For Product: Residential use


Item Weight: 466 Pounds


Voltage: 240 Volts (AC)


Output Wattage: 22 Kilowatts


Special Feature: Automatic Shut Down, Fully Enclosed Design, Super Quiet


Included Components: 5 Year Limited Warranty


Brand: Generac


Wattage: 22000 watts


Fuel Type: Natural Gas or LP Gas


Power Source: Natural Gas or LP Gas


Recommended Uses For Product: Residential use


Item Weight: 466 Pounds


Voltage: 240 Volts (AC)


Output Wattage: 22 Kilowatts


Special Feature: Automatic Shut Down, Fully Enclosed Design, Super Quiet


Included Components: 5 Year Limited Warranty


Color: Bisque


Product Dimensions: 48"L x 25"W x 29"H


Material: Aluminum


Model Name: 22kW Air Cooled Guardian Series


Engine Type: Generac G-Force 1000 Series


Ignition System Type: Electronic


Engine Displacement: 999 Cubic Centimeters


Total Power Outlets: 4


Frequency: 60 Hz


Engine Power Maximum: 22 Kilowatts


Starting Wattage: 22 Kilowatts


UPC: 696471074208


Manufacturer: Generac Power Systems Inc


Item Weight: 466 pounds


Item model number: 7042


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Oct 19

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Nice Generator
Pattern Name: Generator Style: 10kW
Arrived a day late but was in good shape and works perfect, very good product.. AL
Reviewed in the United States on August 9, 2025 by AL

  • Very happy - money well spent.
Pattern Name: Generator Style: 22kW + 200-Amp Switch
I feel sorry for those who received damaged/dented products, so I feel lucky that my unit arrived undamaged and in perfect condition. Having said that, I see how a flimsy layer of cardboard sheet attached to the base pallet may not provide much protection during shipping. Perhaps Generac should consider investing another $25 for a fully framed out protection. Speaking of delivery, my generator arrived 90 minutes later of the delivery window's upper limit. Since it was a Saturday, there was no-one available to talk to. Phone calls went to voicemail or calling the corporate number message was "mailbox full". Keep that in mind when you schedule delivery outside of normail business hours M-F. Prepare to buy a battery (about $60) and if you live in cold climate, a cold weather kit (around $200) to keep your battery and oild filter warm during winter. None of these are included. Currently working on hooking up the unit. Already ran the gas line and the wires to the Automatic Transfer Switch (ATF). I am giving a 5 star review in anticipation of everything working out as expected. Should something not, I will come back and update my review. 30 day update: We had a 1 hr unexpecred power outage. The generator kicked off and ran just fine. Automatically turned off once the power came back on. Very happy customer. 60 day update: Additional 2 power outages, each lasting about 8 hours. Generator worked flawlessly. Fired up in 10 seconds after the outage, ran smoothly providing electricity to the entire house and turned off automatically after utility power came back on. VERY HAPPY - money well spent. ... show more
Reviewed in the United States on July 22, 2024 by Ted O.

  • Arrived on time and within a week from when ordered.
Pattern Name: Generator Style: 24kW + 200-Amp Switch
So far the unit is installed and working properly. Waiting for the next power outage to confirm the system is working properly.
Reviewed in the United States on August 1, 2025 by VFW Post 4816

  • It is controlled by a computer and NOT RELIABLE.
Pattern Name: Generator Style: 22kW + 200-Amp Switch
I have owned a number of whole house Generators both diesel and propane that were reliable. If you want Reliability this is NOT IT. WHY? It has an onboard COMPUTER! It will NOT Run without the Computer. It WILL NOT START UNLESS IT IS ON Wi-Fi. Think EMP or Power Surge, either will knock out the fragile COMPUTER. Oh, they do sell a surge protector, but it won't protect the COMPUTER from lightning. Generac advertises you can monitor it from your phone. TRUE if you pay $70.00 a year for the app. The app wants to sell you filters and parts. If you want a generator for your mountain cabin or hunting camp you MUST have Wi-Fi to start it. If you want something reliable this is NOT it. This Generator with a COMPUTER was designed as a 7th grade science project that did not get honorable mention. Generac has lost its way. ... show more
Reviewed in the United States on August 21, 2025 by no

  • Runs quietly. Able to monitor via WiFi & app.
Pattern Name: Generator Style: 14kW + 200-Amp Switch
Was surprised at how quiet it runs. It is also able to run our central A/C, water heater and stove all at the same time along with most of the house. I highly recommend using a certified Generac installer to do the installation. They handled getting all of the permits & inspections needed for the installation. The Generac app was also helpful in allowing to monitor the status and to schedule weekly exercises for the generator to keep it in top running condition year round. ... show more
Reviewed in the United States on June 30, 2025 by James James

  • Late delivery and no communication
Pattern Name: Generator Style: 22kW + 200-Amp Switch
5 stars for the generac, no stars for the late delivery and communication. Over 2 weeks late
Reviewed in the United States on July 15, 2025 by Amazon Customer

  • Great Purchase - If you are thinking about it do it!!
Pattern Name: Generator Style: 24kW + 200-Amp Switch
Started out not so good - shipping company called me the morning of the delivery and told me that the unit was too damaged to deliver. I did appreciate that being done before delivery and having to go through the order process again. Order was placed again and another shipping company delivered with no damage or issues. They even placed the pallet in my garage. Other shipping vendors wanted to charge a whole lot extra to place anywhere besides the street. Amazon did give me a $50 credit. Once installed, the unit has worked flawlessly and is a huge sigh of relief for this homeowner who lives on the Gulf Coast. Buy the unit separately and DIY an install or find Ana contractor who will give you an install only price. You will save thousands as opposed to buying from one of those huge generator outfits. ... show more
Reviewed in the United States on June 14, 2025 by mjlevan

  • Muy bien con el delibere y muy rápido la entrega
Pattern Name: Generator Style: 24kW + 200-Amp Switch
Todo muy bien
Reviewed in the United States on August 9, 2025 by PEDRO MASSON

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