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Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
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Generac Guardian 70391
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Generac Guardian® 20kW Standby Generator System (200A Service Disconnect + AC Shedding) w/ Wi-Fi

Model:

70391

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Generac Guardian® 20kW Standby Generator System (200A Service Disconnect + AC Shedding) w/ Wi-Fi
Generac Guardian® 20kW Standby Generator System (200A Service Disconnect + AC Shedding) w/ Wi-Fi
Model: 70391
Product Discontinued
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Features

Generac Guardian® 20kW Standby Generator System (200A Service Disconnect + AC Shedding) w/ Wi-Fi


Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."
  • 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 Mobile Link™ Wi-Fi Remote Monitoring*
  • Monitor generator status on a smart phone, tablet or PC
  • *Requires internet connection and wireless router
  • 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 + 24/7-365 Customer Support
  • Have your questions answered when it's convenient for you
  • Generac's G-Force Engine
  • Specifically designed for the demanding environment standby generators endure
  • Full pressure lubrication system w/ 2 year oil change interval
  • Operates On Clean Burning, Efficient Natural Gas or LP (Vapor)
  • Connects to your existing LP or natural gas fuel supply
  • True Power Electrical Technology
  • Less than 5% Total Harmonic Distortion (THD) for utility grade power
  • Automatic Digital Voltage Regulation (+/-1%)
  • Allows for faster response time & maximum motor starting ability
  • Evolution™ 2.0 Digital Controller
  • Multilingual, 2-Line LCD display for simple, straightforward operation
  • Programmable-exerciser lets you set how often & what time generator will self-test
  • Quiet-Test™ Self-Test Mode
  • Low RPM, 5 or 12 minute test for reduced noise and fuel consumption
  • Tough, Durable All-Aluminum Sound Attenuated Enclosure
  • RhinoCoat™ powder-coated finish keeps enclosure protected from the elements
  • Installation Flexibility*
  • Can be installed within 18" of a building; *Always check local building codes
  • Generac Standby Generators & Engines - Built In The USA*
  • Built in the USA using domestic & foreign parts
  • Additional Features:
  • Flexible fuel line and Direct-To-Dirt composite mounting pad
  • Built-in Battery Charger (Battery Sold Separately)
  • Automatic Transfer Switch Model # RXSW200A3
California residents see
Warning: This product can expose you to chemicals including Carbon monoxide which is known to the State of California to cause Developmental Harm.
For more information go to: www.p65Warnings.ca.gov

Specifications

70391
specs product image PID-82543
Overview
Assembly Required
Yes
Weight
516 Pounds
Made in USA
Yes
Consumer Warranty
5 Years
Commercial Warranty
5 Years
Product Style
Standby Generator
Product Length
48 Inches
Product Width
25.3 Inches
Product Height
29 Inches
UPC
696471074192
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Rated Watts
20000 Watts
Fuel Type
LP/Natural Gas
NG Power Capacity
18000 Watts
LP Power Capacity
20000 Watts
NG Fuel Consumption @ 50% Load
204 ft³/hr
NG Fuel Consumption @ 100% Load
301 ft³/hr
LP Fuel Consumption @ 50% Load
2.37 gallons/hr
LP Fuel Consumption @ 100% Load
3.56 gallons/hr
Rated Amps
83.3 Amps
Decibel Rating @ 7m Learn More
Decibel Rating @ 7m
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB.
67 dbA
Transfer Switch
Automatic (Included)
Transfer Switch Amperage
200-Amps
Battery
Not Included
Enclosure
Aluminum
Circuit Breaker Size
90 Amps
A/C Ton Rating
2 x 5-Tons
Transfer Switch Style
Service Disconnect
ATS Load Shedding
Built-In
ATS Poles
2 Poles
ATS Service Disconnect
Yes
Cooling System
Air Cooled
UL Listed
Yes
Grade Type
Emergency
Wi-Fi Remote Monitoring
Yes
Engine
Engine Brand
Generac OHVI
Starting System
12v Auto Start
CC
999 CC
Consumer Engine Warranty
5 Years
Commercial Engine Warranty
5 Years
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Yes

Reviews

(16)
Generac Guardian 70391 Reviews & Ratings
Customer Photos and Videos
review image 1
Customer Rating
4.94
(16 Ratings)
5
(15)
4
(1)
3
(0)
2
(0)
1
(0)
Farmer
By S. Huffman 
North Dakota
Review Posted 01/28/2024 
review 1 image 1
Bought it Oct 2018 One of the best decisions I've made. Starts with no problems, even in -30F. Sure beats using a tractor with a pto generator! I've done that, too
S. Huffman Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
icon-review-marker
Quality
4/5
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Performance
5/5
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Value
5/5
icon-review-marker
Pros:
I'd Buy It Again, Features, Reliable, Exceeded Expectations
Cons:
None
Verified Buyer
Verified Buyer
Great Product So Far And Great Service
By Brian M. 
Slidell, Louisiana
Purchased 01/26/2021 | 
Review Posted 04/09/2021 
So far product is great and performing.
Brian M. Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
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Performance
5/5
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Value
5/5
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Pros:
Price, Id Buy It Again, Easy To Use, Fast
Cons:
Heavy
Verified Buyer
Verified Buyer
Works Great
By David B. 
Roswell, Georgia
Purchased 01/07/2021 | 
Review Posted 03/22/2021 
Install went great and my customer is very happy.
David B. Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
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Performance
5/5
icon-review-marker
Value
5/5
icon-review-marker
Pros:
Price, Id Buy It Again
Verified Buyer
Verified Buyer
GENERAC 20KW
By Thomas M. 
Cleveland, Texas
Purchased 01/05/2021 | 
Review Posted 03/17/2021 
Best investment made for the house, works well, great comfort knowing we will have power in case of an emergency...
Thomas M. Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
icon-review-marker
Performance
5/5
icon-review-marker
Value
5/5
icon-review-marker
Pros:
Price, High Quality, Quiet, Exceeded Expectations
Cons:
NONE
Verified Buyer
Verified Buyer
My 20kw Standby Generator
By Wally B. 
Berlin, Connecticut
Purchased 11/18/2020 | 
Review Posted 01/27/2021 
I received my generator sooner than expected.It was shipped in a very well protected box and wooden crate.Im very pleased with the price and swiftness of it being shipped. Customer service was excellent also. But at this time I have not hooked it up yet but once I do I will send a review.
Wally B. Recommends This
Was this review helpful?
Manufacturer Response
Thank you for taking time out of your day to provide us with your valuable feedback. If you run into any questions, please give us a call at 888-436-3722!
Generac Guardian
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
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Performance
5/5
icon-review-marker
Value
5/5
icon-review-marker
Pros:
Price
Verified Buyer
Verified Buyer
Well Made Easy Install Love It
By Louis P. 
Fairless Hills, Pennsylvania
Purchased 08/26/2020 | 
Review Posted 11/17/2020 
Company delivered as promised straight forward install good directions works well.
Louis P. Recommends This
Was this review helpful?
Manufacturer Response
Thank you for taking time out of your day to provide us with your valuable feedback. If you run into any questions, please give us a call at 888-436-3722!
Generac Guardian
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
icon-review-marker
Performance
5/5
icon-review-marker
Value
5/5
icon-review-marker
Pros:
Price, Id Buy It Again, Features, Quiet
Verified Buyer
Verified Buyer
Why Did I Wait So Long To Buy A Generator?
By Art Z. 
Long Island, New York
Purchased 08/18/2020 | 
Review Posted 09/10/2020 
This generator is perfect.!!..Comes with an ATS...It comes with a built in trickle charger for the battery and it is WI FI....(Battery is about $100 extra) All you need is a carpenter to build a platform to keep it raised off the ground (I Live in a Flood Zone), an electrician , and a plumber..Now when the power goes out the lights go back on AUTOMATICALLY in the house because the generator has now taken over for the power company.... I have to do nothing!!..No switches to turn !!...When the power comes back on from the power company the generator automatically shuts off..All powered by natural gas..On a schedule that I pre select, once a week my generator will run for say 10 minutes to test the system ....No more worries when the power power goes out!!!...
Art Z. Recommends This
Was this review helpful?
Manufacturer Response
Thank you for the rating, we appreciate your feedback. If you have any questions, please do not hesitate to contact our customer support team at 888-GENERAC (436-3722).
Generac Guardian
Rating Breakdown
Features
5/5
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Quality
5/5
icon-review-marker
Performance
5/5
icon-review-marker
Value
5/5
icon-review-marker
Pros:
Reliable, Price, High Quality, Id Buy It Again
Verified Buyer
Verified Buyer
Worst Delivery Experience, Ever
By Brian J 
Toms River, New Jersey
Purchased 07/27/2020 | 
Review Posted 09/07/2020 
Love the product and have purchased in the past, but the latest delivery issue has me hesitant to repurchase.
Brian J Recommends This
Was this review helpful?
Manufacturer Response
Thank you for the rating, we appreciate your feedback. If you have any questions, please do not hesitate to contact our customer support team at 888-GENERAC (436-3722).
Generac Guardian
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
icon-review-marker
Performance
5/5
icon-review-marker
Value
5/5
icon-review-marker
Pros:
Id Buy It Again
Verified Buyer
Verified Buyer
Holy Mackrel ! Fast Shipping !!
By The Electrical Connection 
Forked River, New Jersey
Purchased 07/10/2020 | 
Review Posted 07/29/2020 
Great price AND fast shipping !!
The Electrical Connection Recommends This
Was this review helpful?
Manufacturer Response
Thank you for the rating, we appreciate your feedback. If you have any questions, please do not hesitate to contact our customer support team at 888-GENERAC (436-3722).
Generac Guardian
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
icon-review-marker
Performance
5/5
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Value
5/5
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Pros:
Price, Id Buy It Again, Features, Exceeded Expectations
Verified Buyer
Verified Buyer
Product As Described
By Timothy A. 
Port Huron, Michigan
Purchased 10/28/2019 | 
Review Posted 11/19/2019 
Ordered 1 day, it shipped the next we had unit in 3 days after purchase. That’s fantastic
Timothy A. Recommends This
Was this review helpful?
Manufacturer Response
Thank you for the review, we appreciate your feedback. If you have any questions, please do not hesitate to contact our customer support team at 888-GENERAC (436-3722).
Generac Guardian
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
icon-review-marker
Performance
5/5
icon-review-marker
Value
5/5
icon-review-marker
Pros:
Reliable, Price

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Articles, Tips and Buying Guides from Our Experts

Manuals

 
Media Gallery
Generac Guardian® 20kW Standby Generator System (200A Service Disconnect + AC Shedding) w/ Wi-Fi
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Generac Guardian 70391
Customer Review Images