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Generac Guardian 7039 - ™ 20kW Standby Generator System (200A Service Disconnect + AC Shedding) for sale.

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Generac Guardian™ 20kW Standby Generator System (200A Service Disconnect + AC Shedding)

(Based on expert analysis, manufacturer ratings and customer reviews)

5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
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Ships Tuesday, Oct 25th

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Airooled Standby Generators
20 kW
Rated Watts
120/240 Single-Phase
20kW (LPG) / 18kW (NG) Guardian Air-Cooled Standby Generator
Protects your home and family during a power outage
Digital Power Management (DPM) protects against overload

Includes 200-Amp Service Entrance Rated Automatic Smart Switch
Installs between main meter & service panel for faster & less costly installation

DPM technology allows for the Smart Control of (4) A/C units
Great for homes with multiple Air conditioners (24 VAC controlled)

Add Up To (8) Smart Management Modules (SMM) (Sold Separately)
Frequency (Hz) monitoring design, no control wire required
Versatile design, easily prioritize loads & lock-out non-essential loads

5-Year Limited Warranty
Plus 24/7•365 Customer Support so you have you questions answers when its convient for you

Generac's G-Force Engine
Specifically desgined for the demanding enviroment standby generators endure
Full pressure lubrication system w/ 2 year oil change interval

Operates On Clean Burning, Efficient Natural Gas or LP (Vapor)
Connectes to your existing LP or natural gas fuel supply

True Power™ Electrical Technology & Automatic Digital Voltage Regulation (+/- 1%)
Less than 5% Total Harmonic Distorsion (THD) for utility grade power
Allows for faster response time & maximum motor starting ability

Evolution™ Digital Controller
Multilingual, 2-Line LCD display for simple, straighforward operation
Programmable-exerciser lets you set how often & what time generator will self-test

Tough, Durable All-Aluminum Sound Attenuated Enclosure
RhinoCoat™ powder-coated finish keeps enslosure protected from the elements

Compatible With Mobile Linkâ„¢ Remote Monitoring (Sold Separately)
Easily montior generator status anywhere with a smartphone, tablet, or PC

Installation Flexibility*
Can be installed within 18" of a building; *Always check local bulding codes

Generac Standby Generators & Engines - Built In The USA*
Built in the USA using domestic & foreign parts

Additonal Features:
12" Flexible fuel line and Direct-To-Dirt composite mounting pad
Built-in Battery Charger (Battery Sold Separately)
Engine Brand
Generac OHVI
Starting System
12v Auto Start
999 CC
Consumer Engine Warranty
5 Years
Commercial Engine Warranty
5 Years
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Product Specs
120/240 Single-Phase
60 Hertz
Surge Watts
20000 Watts
Rated Watts
20000 Watts
Fuel Type
LP/Natural Gas
NG Power Capacity
18000 Watts
LP Power Capacity
20000 Watts
NG Fuel Consumption @ 50% Load
205 (BTU: 205,000 BTU/HR) ft3/hr
NG Fuel Consumption @ 100% Load
308 (BTU: 308,000 BTU/HR) ft3/hr
LP Fuel Consumption @ 50% Load
2.23 (BTU: 202,373 BTU/HR) gallons/hr
LP Fuel Consumption @ 100% Load
3.85 (BTU: 349,388 BTU/HR) gallons/hr
Rated Amps
83.3 @ 240 Volts (Single Phase) Amps
Decibel Rating @ 7m
67 dbA
Transfer Switch
Automatic (Included)
Transfer Switch Amperage
Not Included (540 CCA)
A/C Ton Rating
2 x 5-Tons
Transfer Switch Style
Service Disconnect
ATS Load Shedding
ATS Poles
2 Poles
ATS Service Disconnect
Cooling System
Air Cooled
UL Listed
Made in USA
Assembly Required
516 Pounds
Product Length
48 Inches
Product Width
25.3 Inches
Product Height
29 Inches
Consumer Warranty
5 Years
Commercial Warranty
5 Years

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Generac Guardian 7039 Reviews & Ratings
1 Review  Sort by 
Mike, the Generator Expert
Power Equipment Expert

Product Expert
Total Reviews
103 Reviews
Total Helpful Votes
8720 Helpful Votes
Power Equipment Direct Recommended

This Generac 20kW standby generator is everything you need in one package. It is one of our best selling standby generators. The older model sold like hot cakes because it’s the ideal suburban power restoration solution.

At 20kW, the generator is so popular because at this size, it can power entire smaller homes, or restore the majority of power to larger homes. It comes with a 5 year warranty, which is as long as you can find in the industry.

The 200-amp service-entrance automatic... more
Mike Recommends This Model
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Free Freight
  • Ships via Semi-Truck
  • Requires a loading dock or forklift
  • Free to Lower 48 States
We currently CANNOT ship this product to Alaska, Hawaii or any destination outside of the United States
Priority Shipment
  • Faster Delivery Times
  • Ships Same Business Day
  • Guaranteed In-Stock
  • $50 Service Charge
Lift Gate Services
  • Safely Lowers Products Off the Truck
  • Requires Special Hydraulic Lift
  • Free Lift Gate
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5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
2 Reviews
 1   Q&A
Estimated Ship Date on November 01, 2016


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Buy Generac Guardian™ 20kW Standby Generator System (200A Service Disconnect + AC Shedding) at Power Equipment Direct. Read standby generator reviews and standby generator articles. Wide Selection of standby generator accessories available, including Generac 9-22kW Air Cooled Oil Heater Kit (2008+), Generac 9-22kW Air Cooled Battery Heater Kit (2008+) and Generac 9-22kW Air Cooled Breather Heater Kit (2013+).

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