2017 Generac Guardian 20kW with Whole House Switch Model #7039

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Guardian 20kW with Whole House Switch Model #7039



One of the most powerful air-cooled generators on the market today, the Guardian Series 20 kW automatic home standby generator can provide whole-house backup power for many homes.

  • Up to whole house protection with the 200-amp, NEMA 3R (aluminum outdoor enclosure) smart switch.
  • 5 Year Limited Warranty for automatic standby generators.
  • True Power™ Technology delivers best-in-class power quality with less than 5 percent total harmonic distortion for clean, smooth operation of sensitive electronics and appliances.
  • Generac generators and engines are engineered and built in the USA*. *Built in the USA using domestic and foreign parts
  • Generac's G-Force Engine is a purpose-built, pressure-lubricated engine capable of handling the rigors of generator use, resulting in power that’s more reliable and requires less routine maintenance than any competitive engine.
  • Quiet-Test™ Self-Test Mode runs at a lower RPM for a five or twelve minute test, making generators significantly quieter than other brands while consuming less fuel.
  • 24/7/365 Customer Support Team standing by all day, every day from our headquarters in Wisconsin to answer any questions you might have.
  • Our RhinoCoat™ powder-coated finish helps make corrosion-resistant aluminum perfect for all weather conditions.
  • Generac’s Evolution™ Controller features a multilingual LCD display that allows users to monitor battery status and track maintenance intervals to ensure your generator is always in top operating condition.
  • Mobile Link™ Remote Monitoring allows you to monitor the status of your generator from anywhere in the world using a smartphone, tablet, or PC. Easily access information, such as the current operating status and the generator’s maintenance schedule. Connect your account to your authorized service dealer for fast, friendly and convenient assistance. (sold separately)
  • Specifications (LP/NG): 20/18 kW
  • Generator / 200 Amp Service Rated Load Shedding Smart Switch Package Model #: 7039
  • Voltage (Single Phase): 240V
  • Amps @ 240V LPG: 83.3
  • Amps @ 240V NG: 75
  • Engine/Alternator RPM: 3600/3600
  • Engine: Generac G-Force
  • Engine Displacement: 999cc
  • Fuel Consumption @ 1/2 Load NG cu. ft/hr: 204
  • Fuel Consumption @ Full Load NG cu. ft/hr: 301
  • Fuel Consumption @ 1/2 Load LPG cu. ft/hr (gal/hr): 86 (2.37)
  • Fuel Consumption @ Full Load LPG cu. ft/hr (gal/hr): 129 (3.56)
  • Quiet-Test Mode: Yes
  • db(A) at Exercise: 58
  • db(A) at Normal Operating Load: 66
  • Enclosure: Aluminum
  • Enclosure Color: Bisque
  • Warranty: 5-Year Limited
  • Dimensions (L" x W" x H"): 48 x 25 x 29
  • Weight (lbs.) (Steel/Aluminum): 448



Engine Type
Generac G-Force


48 in.
25 in.
29 in.
448 lb.


AC Output
LP: 20 kW; Natural Gas: 18 kW
Noise Level
66 db(A)

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