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Generac 6552 Guardian 22kW LP/NG Standby Generator New

Manufacturer: Generac

SKU: 6552

  • Generac 6552 Guardian 22kW LP/NG Standby Generator New
  • Generac 6552 Guardian 22kW LP/NG Standby Generator New


$ 4,499.00

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Product Overview

  • Generac 22kW
  • Generac G-Force V-Twin Overhead Valve Industrial Engine
  • Certified for 18” to Home Installation
  • Included Composite Pad Sits Directly on Soil
  • Natural Gas or LP Gas Operation
  • All Weather Aluminum Enclosure with Improved Locking System
  • Access all Electrical, Fuel, and Battery Connections Under a Single Removable Panel
  • 5-Year Limited Warranty

Please note: Due to a chip shortage this unit will not have WiFi functionality right away.  Generac will mail you a WiFi chip that can be plugged into the outside of the generator. Chips are estimated to ship by late Summer.  The WiFi feature is solely for remote monitoring and will not affect the performance of the generator.

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authorized dealer

5 year factory warranty


Brand new in box


Ships directly from Generac


Works with liquid propane or natural gas


Authorized Generac dealer

Generac 6552 Guardian 22kW LP/NG Standby Generator New

Generac 6552 Guardian 22kW LP/NG Standby Generator New


  • Mobile Link™ Remote Monitoring FREE with every Guardian Series Home standby generator 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 maintenance alerts. Connect your account to your authorized service dealer for fast, friendly and proactive service. With Mobile Link, you are taken care of before the next power outage.
  • 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 assembled in the USA*.
  • 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.


Model Number6552
Made In USAYes
Rated Watts22kW Propane / 19.5 kW Natural Gas
Rated Amps100-Amps
AC Ton Rating5-Ton
UL ListedUL-2200
Decibel Rating 7m57 dBA Quiet Test Exercise / 67 dBA Full Load
TypeStandby Generator
Series NameGuardian Series
Starting SystemAutomatic
Low Oil AlertLow Oil Shutdown
Mainline Breaker100-Amps
Battery Requirements12-Volt Group 26R 540 CCA / Group 35AGM 640 CCA
Mounting PadYes
Weight445 lbs
Dimensions48L X 25W X 29H
Engine BrandGenerac G-Force
Engine Size999 cc
Engine RPM3600
Cast Iron SleeveYes
Cooling SystemAir-Cooled
Alternator Type2-Pole Rotating Field
Frequency60 Hz
Auto Voltage RegulationYes
TypeNatural Gas or Propane
NG Consumption Full Load306 Cubic-feet / hour
NG Consumption Half Load203 Cubic-feet / hour
LP Consumption Full Load3.9 Gallons / hour
LP Consumption Half Load2.5 Gallons / hour
Consumer WarrantyGenerac 5-Year Limited Warranty

Package Contents

Generac 6551 22kw Standby Generator

Aluminum Enclosure

Composite Pad

User's Manual


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authorized dealer

This item comes with a 5 year factory warranty.

Manuals & Documentation

Customer Reviews (207)

Customer Reviews

Based on 207 reviews
See all reviews
Reviews (207)Questions (2)
Jordan Sedlock

Generac 70432 Guardian 22kW Standby Generator WiFi w/ 200 Amp Automatic Transfer Switch New

Daniel Clinton

Generac 70432 Guardian 22kW Standby Generator WiFi w/ 200 Amp Automatic Transfer Switch New

Phil Preston

not installed yet.

Jim R.
Generac 70432 Guardian 22kW Standby Generator WiFi w/ 200 Amp Automatic Transfer Switch New

My wife and I purchased this complete home Generac unit about ten years ago. It was very easy to install, took about three hours (after concrete slab set up). The only thing I regret is not purchasing it before we did. The unit has never failed switching to unit after RECC electric fails than back when RECC electric returns. It has saved our family on several occasions. You can set the unit to self check itself.
We heat and cool with heat pump, have never been without electric since insulation so far. Would recommend highly you will never be sorry GREAT unit.
Jim R.

Scott Spink

Shipped very quickly!

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