One of the most powerful air-cooled generators on the market today, the Guardian® Series 22 kW automatic home standby generator can provide whole-house backup power for many homes. Not only does it deliver all the features and functionality customers have come to expect from the market-leading brand of home standby generators, but with an MSRP that is the lowest cost per kilowatt of any air-cooled home standby generator.
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Generac Standby Generator, 22kW | WiFi Enabled
Model: 7042
$5,989.00
Whole‑House Backup with Dual-Fuel Flexibility: Delivers up to 22 kW on LP or 19.5 kW on NG, powering essential systems and sensitive electronics via True Power™ Technology (<5% THD)
Smart Remote Monitoring + Quiet‑Test™: Built‑in Wi‑Fi Mobile Link™ allows monitoring via smartphone/PC; self‑test runs quietly at low RPM for 5–12 min
Durable, Low‑Maintenance Design: G‑Force 999 cc engine with pressure lubrication, aluminum RhinoCoat™ enclosure (stands 150 mph winds), and robust Evolution™ controller
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Additional information
| Weight | 466 lbs |
|---|---|
| Dimensions | 48 × 25 × 29 in |
| Fuel Type | Liquid Propane or Natural Gas |
| Wattage | 19.5 kW (NG), 22 kW (LP) |
| Voltage | 120/240 V Single-Phase |
| Noise Level (dB) | 67 dB |
| Monitoring Capabilities | Mobile Link™ Wi‑Fi |
| Enclosure Material | RhinoCoat™ Aluminum |
| Certifications | CUL Listed, EPA Certified, UL Listed |
| Country of Origin | Engineered and assembled in the USA (with domestic and foreign parts) |
| Brand | Generac |
Mobile Link™ Remote Monitoring
Free with every Guardian Series home standby generator, Mobile Link™ allows you to monitor your generator’s status from anywhere in the world using a smartphone, tablet, or PC. Easily access key information such as operating status and maintenance alerts.
5-Year Limited Warranty
All automatic standby generators come with a 5-year limited warranty, giving you peace of mind and reliable coverage.
True Power™ Technology
Delivers best-in-class power quality with less than 5% total harmonic distortion, ensuring clean, smooth operation for sensitive electronics and appliances.
Engineered and Assembled in the USA
Generac generators and engines are engineered and assembled in the USA* to meet high standards of quality and performance.
*Assembled in the USA using domestic and foreign parts.
Quiet-Test™ Self-Test Mode
Runs at a lower RPM for a five- or twelve-minute test, making the generator significantly quieter than other brands while using less fuel during testing.
G-Force Engine
Generac’s G-Force Engine is a purpose-built, pressure-lubricated engine designed to withstand the demands of generator use. It delivers reliable power with less required maintenance compared to competitive engines.
24/7/365 Customer Support
A dedicated customer support team is available around the clock from Generac’s headquarters in Wisconsin to answer any questions and provide assistance whenever you need it.
RhinoCoat™ Powder-Coated Finish
Provides a durable, corrosion-resistant aluminum exterior that stands up to harsh weather conditions and extends the life of your generator.
Evolution™ Controller
Features a multilingual LCD display that lets you easily monitor battery status and track maintenance intervals, ensuring your generator stays in top operating condition.







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