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Generac 7038 Guardian 20kW (LP) / 20kW (NG) Air-Cooled Standby Generator w/ Wi-Fi


Includes Mobile Link™ Wi-Fi Remote Monitoring - Monitor generator status on a smart phone, tablet or PC

SKU: 7038

Availability: In stock


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No Payment Until 2018



  • Generac's 20,000-Watt Guardian Series provides the automatic backup power you need to protect your home and family during a power outage
  • Connected to your existing LP or natural gas fuel supply, it kicks in within seconds of determining power loss automatically and runs for as long as necessary until utility power returns
  • 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
  • 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 - Assembled 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
  • Tough, Durable All-Aluminum Enclosures: The RhinoCoat™ powder-coated finish helps make corrosion-resistant aluminum perfect for all weather conditions
  • Smart, User-Friendly Controls. 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

Compliance and Restrictions.

Warning: Cancer and Birth Defect/Reproductive Harm -- www.P65Warnings.ca.gov/product



Rated Max. Continuous Power Capacity (LP / NG) 20,000 Watts / 18,000 Watts
Rated Voltage 240V
Rated Max. Continuous Load Current - 240 Volts (LP / NG)       83.3 / 75
Total Harmonic Distortion Less than 5%
Main Line Circuit Breaker 100 Amp
Phase 1
Number of Rotor Polls 2
Rated AC Frequency 60 Hz
Power Factor 1.0
Battery Requirement (Not Included) 12 Volts, Group 26R 540 CCA Min. or Group 35AGM 650 CCA Min.
Unit Weight (lbs. / kg) 448 lbs. / 203 kg
Dimensions - L x W x H (in / mm) 48" x 25" x 29" / 1218mm x 638mm x 732mm 
Sound Output in dB(A) at 23 ft. Under Normal Load 66 dB(A)
Type of Engine Generac G-Force 1000 Series
Number of Cylinders 2
Displacement 999cc
Cylinder Block Aluminum with Cast Iron Sleeve
Valve Arrangement Overhead Valve
Ignition System Solid-State with Magneto
Governor System Electronic
Compression Ratio 9.5:1
Starter 12 VDC
Oil Capacity Including Filter (Quarts / Liters) 1.9 Quarts / 1.8 Liters
Operating Speed 3600 RPM
Fuel Consumption - Natural Gas 1/2 Load: 204 ft³/hr - Full Load: 301 ft³/hour
Fuel Consumpstion - Liquid Propane 1/2 Load: 2.37 gal/hr - Full Load: 3.56 gal/hr
Wi-Fi Remote Monitoring Yes

More Info


I can sleep at night!Review by Peter Pumpkin
Extremely touchy ComEd service in Elmhurst IL required the installation of this generator especially after an outage resulted in 6.5 feet of water in my finished basement. Extremely optimistic that this generator will save my new basement. (Posted on 8/6/2015)
This is an excellent trouble free standby generatorReview by JJP
I picked this 20K model over others I had researched for its excellent features and price. It has adequate backup power for the entire house. It has been tested through three power outages and has worked flawlessly. I can say nothing bad about this generator. (Posted on 8/2/2015)
This product has performed flawlesslyReview by flfitz
The few times that we have had a power outage, the unit has kicked on without a hitch. It is also very quiet. Would highly reccommend. (Posted on 7/24/2015)
Great PriceReview by Earl1
Sales person very knowledgeable. Service and installation has been very good. Two problems have occurred. When installed the battery that came with the generator was bad but new one was installed the same day. Since installation the internal clock isn't keeping time, however the installer will correct this problem. Have recommend the generator to other people in our community and several have taken my recommendation and have had them installed.
Have lived at this location for 7 years and the electric has gone out 18 times in the past 3 years. A very good investment. (Posted on 7/19/2015)
Great value for moneyReview by Satisfied
I purchased and installed a Guardian last fall during renovations to my home. After receiving quotes from different electricians and talking to owners of this unit I decided to purchase this one. I had it installed by my electrician and had my gas company install the propane line. I live in an area with potential power outages and have had several since the install and the unit has worked perfectly. The weekly automatic test is great! Unit is virtually maintenance free only needing yearly service. My only regret is I purchased a 12 position transfer switch instead of a whole house and wish now I had the whole house. My electrician said my unit would of handled my needs. I highly recommend this or any Guardian! (Posted on 6/19/2015)

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