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Generac Guardian™ 20kW Aluminum Home Standby Generator

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Generac Guardian Electric Generators and Accessories
Model: 7038
(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
1 Review
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  • Features
  • Specs
  • 7
    Q&A 
  • 1
    Reviews
  • Articles
  • Shipping
  • Accessories
Grade
Style
Run Watts
20,000
Rated Watts
Voltage
120/240 Single-Phase
Fuel
Engine
20kW (LPG) / 18kW (NG) Guardian Air-Cooled Standby Generator
Protects your home and family during a power outage

*Automatic Operation Only*
Fully automatic operation when paired with Generac Smart Switch™ (Sold Separately)

5-Year Limited Warranty
Plus 24/7•365 Customer Support so you have you questions answers when its 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)
Connectes to your existing LP or natural gas fuel supply

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

Evolution™ Digital Controller
Multilingual, 2-Line LCD display for simple, straightforward 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 enclosure protected from the elements

Compatible With Mobile Link™ Remote Monitoring (Sold Separately)
Easily monitor generator status anywhere with a smartphone, tablet, or PC

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:
12" Flexible fuel line and Direct-To-Dirt composite mounting pad
Built-in Battery Charger (Battery Sold Separately)
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
Product Specs
Voltage
120/240 Single-Phase
Frequency
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
204 (BTU: 204,000 BTU/HR) ft³/hr
NG Fuel Consumption @ 100% Load
301 (BTU: 301,000 BTU/HR) ft³/hr
LP Fuel Consumption @ 50% Load
2.37 (BTU: 215,078 BTU/HR) gallons/hr
LP Fuel Consumption @ 100% Load
3.56 (BTU: 323,070 BTU/HR) gallons/hr
Rated Amps
83.3 @ 240 Volts (Single Phase) Amps
Decibel Rating @ 7m
66 dbA
Transfer Switch
Automatic (Not Included)
Enclosure
Aluminum
Battery
Not Included (540 CCA)
A/C Ton Rating
5-Tons
Cooling System
Air Cooled
UL Listed
Yes
Grade Type
Emergency
Overview
Made in USA
Yes
Weight
516 Pounds
Product Style
Standby Generator
Product Length
48 Inches
Product Width
25 Inches
Product Height
29 Inches
Consumer Warranty
5 Years
Commercial Warranty
5 Years
UPC
696471070385
Model
7038
  7 Questions
Q: Can the air cooled unit operate in warm weather conditions and not overheat. We just had a 122 degree day and if the electricity had failed, would this generator be able to handle the load in the heat?
by Gene H. from California on June 27, 2016

A: Thank you for contacting us.

Generac Air-Cooled Standby Generators are tested in accordance to UL 2200 standards with an operating temperature of -20 ºF (-29 ºC) to 122 ºF for normal operating range

Please let us know if you have any other questions.
by Mike, Product Expert

Q: Should I pour a concrete base to place this unit on or can you place on a level dirt pad?
by Jim from Iowa on September 03, 2015

A: Thank you for contacting Electric Generators Direct.

I would advise pouring a concrete base. Or I would advise looking into a GenPad.


GenPad Product Info

by Mike, Product Expert

Q: Can aluminum wire be used to feed the breaker on a Generac generator?
by Glenn from New Jersey on December 11, 2014

A: Thanks for your inquiry.

When wiring the generator it must be in accordance with local jurisdiction and codes. If ALUMINUM conductors are used, apply corrosion inhibitor to conductors.

by Mike, Product Expert

Q: What is the clearance needed on all four sides of the unit for proper operation?

by Mark C. from Connecticut on July 24, 2014

A: Page 11 of the Installation Guide shows proper installation distances according to NFPA and manufacturers recommendations. The guide is available on our site under the specs tab in the download documentation section......

Installation Guide


by Mike, Product Expert

Q: If I'm not around when my home standby generator is running, what type of protections systems do the Generac units have?
by Josh from New Jersey on November 13, 2013

A: The generator may have to run for long periods of time with no operator present to
monitor the engine/generator conditions. Therefore, the generator is equipped with a number of systems to automatically shut down the unit to protect it against potentially damaging conditions. Some of these systems are as follows:

• Low Oil Pressure Sensor
• High Temperature Sensor
• Overcrank Sensor
• Overspeed Sensor
• RPM Sensor
• Under-frequency Sensor
• Undervoltage Sensor
• Overvoltage Sensor
• Internal Failure Sensor
• Low Battery Voltage Alarm

The control panel contains a display which alerts the operator when a fault condition occurs. The above list is not all inclusive. For more information about alarms and control panel operation, see Section 3 (Operation) in the owner's manual.

by Mike, Product Expert

Q: What type of oil should I use in my Generac home standby generator?
by Jim from Illinois on November 11, 2013

A: The maintenance section in the Generac's home standby owner's manual lists that the oil type is based on temperature ranges specific in your area.....

SAE-30 above 32º F (0º C)
10W-30 between 40º and -10º F (4º and -23º C)
Synthetic 5W-30 for all temperature ranges

All new models come with SAE-30 oil in them and have been test run at the factory for 25 hours and no break-in is required. The first oil change would be at 2 years or 200 hours, whichever comes first.

by Mike, Product Expert

Q: I'm not sure if this falls into the repair area but, I'm concerned about the sound this generator produces. Is there a way to lower that? Is there sound proofing approved for use for the interior walls of this type of home standby? My neighbors bedroom window will be 20ft from where I plan to install the generator. I would prefer doing something inside the generator as apposed to some type of fencing or other external methods.

by Mark H. from New Jersey on October 23, 2013

A: The manufacturers make every effort to reduce the sound of their generators as best they can keeping within NFPA and UL requirements. There are currently no options or parts available to install inside home standby systems to reduce their db(A) levels.

Your only option is location or sound barriers installed around the unit while keeping within NFPA and manufacturers distance requirements for proper fire protection, air intake and exhaust output.

We recommend consulting with your local inspector or AHJ (Authority Having Jurisdiction) as to the specific local code requirements.

by Mike, Product Expert

Generac Guardian 7038 Reviews & Ratings
Overall Rating
Features
5/5
Quality
5/5
Performance
5/5
Value
5/5
Overall
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
Pros
I'd Buy It Again (1)
Price (1)
Quiet (1)
Features (1)
Cons
Tech support is poor. (1)
1 Review  Sort by 
 
Patrick M.
West Branch, MI
Purchased from Electric Generators Direct
Purchased 3/29/17
Most Helpful Positive Review
REVIEWED
APR.
20
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Easy Install
Very co-operative.
Pros: Features, Quiet, Price, I'd Buy It Again
Cons: Tech support is poor.
Patrick Recommends This Generac Guardian Product
Was this review helpful?
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Shop for the Generac Guardian™ 20kW Aluminum Home Standby Generator at Electric Generators Direct. Research Generac Guardian 696471070385 standby generators air-cooled generator online. Find Generac Guardian 7038 standby generators air-cooled generator & Guardian New 20 kW Aluminum features and specifications. Get the best deal; compare Generac Guardian 7038 prices now. Buy the 7038 direct and save.