Generac QuietSource Series™ 22 kW Standby Power Generator (Premium-Grade)

Generac QuietSource Series™ 22 kW Standby Power Generator (Premium-Grade)
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Model: QT02224ANAX
(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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  • Product Description
  • 13
    Reviews
  • 10
    Product Q&A
  • Recommended Accessories
  • How-To Articles
  • Manuals
Product Description
+
Grade
Style
Run Watts
22,000
Rated Watts
Surge Watts
22,000
Starting Watts
Fuel
Engine
Grade
Emergency
Style
Standby (Liquid Cooled)
Run Watts
22,000
Surge Watts
22,000 Starting Watts
Fuel
LP/Natural Gas
Engine
Generac 2.4L 4-Cylinder
Features
Features
  • Premium-Grade Standby Generator
  • High-quality, liquid-cooled standby generator
  • Designed for luxury homes and commercial buildings
  • Whisper-Test
  • Low-speed exercise mode for quieter weekly tests
  • Exercises at a quiet 61 decibels at 23 feet
  • Sound level comparable to an idling car
  • Automotive-Style Engine
  • Powerful Generac in-line 4-cylinder automotive engine
  • Operates at half the speed of other engines (1800 vs. 3600 RPM)
  • Runs at a quiet 70 decibels at 23 feet under load
  • Aluminum Enclosure
  • Corrosion-resistant material ideal for salty air conditions
  • Sound attenuated acoustically designed enclosure
  • Tri-Lingual Digital Nexus™ Controller
  • Two-Line LCD Display provides service & maintenance intervals
  • Automatic Shutdown
  • High coolant temp, low coolant, low oil pressure and overspeed
  • Transfer Switch (Sold Separately)
  • Fork Lift or Loading Dock is Required for Delivery.
Specifications
Engine
Engine Brand
Generac 2.4L 4-Cylinder
Consumer Engine Warranty
2 Years
Commercial Engine Warranty
2 Years
Engine RPM
1800 RPM
Low Oil Alert/Shutdown
Yes
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Surge Watts
22000 Watts
Rated Watts
22000 Watts
Fuel Type
LP/Natural Gas
NG Power Capacity
22000 Watts
LP Power Capacity
22000 Watts
NG Fuel Consumption @ 50% Load
190 ft³/hr
NG Fuel Consumption @ 100% Load
316 ft³/hr
LP Fuel Consumption @ 50% Load
2 gallons/hr
LP Fuel Consumption @ 100% Load
3.4 gallons/hr
Rated Amps
92 Amps
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.
61 Test (70 Run) dbA
Transfer Switch
Automatic (Not Included)
Enclosure
Aluminum
Battery
Not Included (525 CCA)
Mounting Pad
Concrete (Not Included)
Cooling System
Liquid Cooled
UL Listed
Yes
Grade Type
Emergency
Overview
Made in USA
Yes
Weight
843 Pounds
Product Style
Standby Generator
Product Length
62.2 Inches
Product Width
29 Inches
Product Height
33.5 Inches
Consumer Warranty
2 Years
Commercial Warranty
2 Years
UPC
696471056389
Grade
Style
Run Watts
22,000
Rated Watts
Surge Watts
22,000
Starting Watts
Fuel
Engine
Grade
Emergency
Style
Standby (Liquid Cooled)
Run Watts
22,000
Surge Watts
22,000 Starting Watts
Fuel
LP/Natural Gas
Engine
Generac 2.4L 4-Cylinder
Features
Features
  • Premium-Grade Standby Generator
  • High-quality, liquid-cooled standby generator
  • Designed for luxury homes and commercial buildings
  • Whisper-Test
  • Low-speed exercise mode for quieter weekly tests
  • Exercises at a quiet 61 decibels at 23 feet
  • Sound level comparable to an idling car
  • Automotive-Style Engine
  • Powerful Generac in-line 4-cylinder automotive engine
  • Operates at half the speed of other engines (1800 vs. 3600 RPM)
  • Runs at a quiet 70 decibels at 23 feet under load
  • Aluminum Enclosure
  • Corrosion-resistant material ideal for salty air conditions
  • Sound attenuated acoustically designed enclosure
  • Tri-Lingual Digital Nexus™ Controller
  • Two-Line LCD Display provides service & maintenance intervals
  • Automatic Shutdown
  • High coolant temp, low coolant, low oil pressure and overspeed
  • Transfer Switch (Sold Separately)
  • Fork Lift or Loading Dock is Required for Delivery.
Specifications
Engine
Engine Brand
Generac 2.4L 4-Cylinder
Consumer Engine Warranty
2 Years
Commercial Engine Warranty
2 Years
Engine RPM
1800 RPM
Low Oil Alert/Shutdown
Yes
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Surge Watts
22000 Watts
Rated Watts
22000 Watts
Fuel Type
LP/Natural Gas
NG Power Capacity
22000 Watts
LP Power Capacity
22000 Watts
NG Fuel Consumption @ 50% Load
190 ft³/hr
NG Fuel Consumption @ 100% Load
316 ft³/hr
LP Fuel Consumption @ 50% Load
2 gallons/hr
LP Fuel Consumption @ 100% Load
3.4 gallons/hr
Rated Amps
92 Amps
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.
61 Test (70 Run) dbA
Transfer Switch
Automatic (Not Included)
Enclosure
Aluminum
Battery
Not Included (525 CCA)
Mounting Pad
Concrete (Not Included)
Cooling System
Liquid Cooled
UL Listed
Yes
Grade Type
Emergency
Overview
Made in USA
Yes
Weight
843 Pounds
Product Style
Standby Generator
Product Length
62.2 Inches
Product Width
29 Inches
Product Height
33.5 Inches
Consumer Warranty
2 Years
Commercial Warranty
2 Years
UPC
696471056389
Product Specs
+
Specifications
Engine
Engine Brand
Generac 2.4L 4-Cylinder
Consumer Engine Warranty
2 Years
Commercial Engine Warranty
2 Years
Engine RPM
1800 RPM
Low Oil Alert/Shutdown
Yes
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Surge Watts
22000 Watts
Rated Watts
22000 Watts
Fuel Type
LP/Natural Gas
NG Power Capacity
22000 Watts
LP Power Capacity
22000 Watts
NG Fuel Consumption @ 50% Load
190 ft³/hr
NG Fuel Consumption @ 100% Load
316 ft³/hr
LP Fuel Consumption @ 50% Load
2 gallons/hr
LP Fuel Consumption @ 100% Load
3.4 gallons/hr
Rated Amps
92 Amps
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.
61 Test (70 Run) dbA
Transfer Switch
Automatic (Not Included)
Enclosure
Aluminum
Battery
Not Included (525 CCA)
Mounting Pad
Concrete (Not Included)
Cooling System
Liquid Cooled
UL Listed
Yes
Grade Type
Emergency
Overview
Made in USA
Yes
Weight
843 Pounds
Product Style
Standby Generator
Product Length
62.2 Inches
Product Width
29 Inches
Product Height
33.5 Inches
Consumer Warranty
2 Years
Commercial Warranty
2 Years
UPC
696471056389
Reviews
(13)
+
Generac QuietSource QT02224ANAX Reviews & Ratings
100% of Reviewers Recommend This Product
Product Q&A
(10)
+
Search Product Q&A's Answered by Jared, the Generator Expert
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I am trying to decide the size of the propane tank I will install to go with the generator I am going to buy. The 22Kw Quiet Source says that it consumes about 2 gallons of propane per hour at 50%. I am confused by the 50% part of that. Is 50% the normal operating speed? Or should I plan for this generator to consume 4 gallons per hour at full operating power? So the question is: how much propane will this generator consume when it is running and generating electricity?
Kenneth Swartzel 
from Texas 
February 12, 2014
Answer
The generators consumption rate will vary depending on how much electricity you will be using while the unit operates. If you review the manufacturers specification sheet you will see the consumption rates based on 25%, 50%, 75% & 100%.

Please note that a generator starts at full load capacity and then adjusts to the actual electrical needs and when it comes to the tank size the BTU consumption needs to be considered as this is what is provided from the tank. A minimum tank size recommendation would be 500 gallons but we recommend you consult with your LP supplier so you have the proper back-up capacity based on your longest outage time and how quickly they can resupply your tank.

Specification Sheet
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I'm looking at the 22.kw Quietsource model QT02224ANAX as well as the 200 amp ATS model RTSY200A3. What remote annunciator do you recommend? Also, how would I know if I should install the cold climate kit?
L. White 
from Pennsylvania 
November 08, 2013
Answer
The Generac liquid cooled models we offer do not work with remote annunciators. The only remote system they offer that work with them would be their Generac Mobile Link System model 6463 along with the liquid cooled harness model 6478.

Per Generac the cold weather kit (Model 6212) is required in areas where the temperatures drop below 32 degrees Fahrenheit for extended periods of time.
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How do I determine which controller to use with this unit?
Jim 
from Texas 
October 08, 2013
Answer
Thank you for your interest in Electric Generators Direct!

The Generac QuietSource 22kW Standby Generator is fitted with a Generac Nexus series controller. There will be no additional logic required to use with this machine. You will however need an automatic transfer switch.

You will need to size the transfer switch based off of your incoming utility service. It is recommended that you confer with a licensed electrician for assistance with procedure.

Generac Transfer Switches
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What is the clearance from a dwelling unit?
Matt Dever 
from New Jersey 
September 16, 2013
Answer
Thank you for your interest in Electric Generators Direct!

The Generac QuiteSource Generators are intended to be installed at least five feet from any structure.
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Generac QuietSource Series™ 22 kW Standby Power Generator (Premium-Grade) My questions are for the generator above however the questions are also "in general" also. I have property out in the county and there is not power within about 25 miles. As I am building a 4,000 sq foot house I need to know how this would work for constant use. What are the downsides to having this be the only source of your power? Question 2: How much fuel would it require in a month on the low end and on the high end? Question 2A: IE if generator was running at a full load for 30 days? Question 2B. IE if the generator was running at idle for 30 days. Question 3: At full power how much fuel would it use lets say in a day? Questions 4: How is this generator typically serviced? By sending it someplace? Or taking it someplace? Question 5: Most of the time these generators are rated at a life of 10,000 to 20,000 hours. in a year there is a little less than 10,000 hours. Does that mean I can exspect it to last around a year and then need to be replaced or refurbished etc? Thanks in advance for your answers. John
John Hancock 
from Alaska 
July 30, 2013
Answer
Thank you for your inquiry....

The permanent home standby systems we offer are not designed or warranted for primary power use. These systems are for use on applications that currently have utility power source available and they come on during outages and shut down when utility power returns. Their internal controller is constantly looking for utility power so when there is no utility power hookup the controller will error and the unit will not operate.

Fuel consumption is listed on the manufacturers spec sheet available on our site under the specs tab on each models page.

All service is performed by a local manufacturers service technician.

The manufacturers do not provide a life or hour rating on their equipment as this is dependent on how they are used and maintained.

Note: Shipping charges apply when shipping to Alaska and most products cannot be shipped there. Check the shipping tab on each product for qualifications.
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I am purchasing the 22KW liquid cooled model Generac. I am going to do the concrete pad myself. What size should I make it? 46" X 74"? Is 4 inch thick OK or should it be 6 inch? Does the pad I build need to have wire in it? Do you know what side the exhaust vents if the Generac name is facing you and the key lock is facing you? The reason I ask is I plan to put it to the right of my A/C units
Bill  
from Louisiana 
September 25, 2012
Answer
Per the installation drawing Notes 1 & 2:

Minimum recommended concrete pad size: 41 x 74.5. Reference installation guide supplied with the unit for concrete pad guidelines.

Allow sufficient room on all sides of the generator for maintenance and servicing, this unit must be installed in accordance with current applicable NFPA 37 and NFPA 70 standards as well as any other federal, state and local codes for minimum distances from other structures.

The Generac logo and door lock is on both sides of the generator so you can mount it the direction you need and still have proper access for maintenance since there are two doors.

Note: You need to make sure the generator intake is not drawing in the hot air from the AC units and should be mounted 5 feet from them.
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I'm going to build a house in the spring of 2013 and I want to have a standby generator installed when the house is built. What would be the best size generator? I plan on having a geothermal heating/ac system and the house will be all electric.
Dan 
from Kansas 
August 06, 2012
Answer
Thank you for visiting Electric Generators Direct. In regards to your question, the generator size is determined by the starting amperage load of the equipment you are planning on powering when you lose power.

The starting amperage load will be much larger than the running load and proper calculations need to be done to properly size a unit.

We recommend having a certified electrician do your wattage calculations as every home is different.

The electrician would calculate with the following formula to properly size the generator which should be sized at 80% of its running capacity to allow enough flexibility to handle large intermittent loads and still keep voltage output at proper levels.

(Starting Amps x Volts = Watts)

Note: Geo-Thermal systems can require a tremendous amount of starting current and all calculations should be done onsite professionally.
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I have two 150 amp main panels that I would like to hook up to the Generac 22kw generator. Would I need to buy two 200 amp transfer switches and do you have a wiring diagram to do so? Or can it be done with one switch?
Joe E. 
from Michigan 
July 18, 2012
Answer
You are correct in needing two switches for this application. The wiring schematics can be found on the specs page of the product, but will also ship with the units.

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What would I need in a 208-230 Volt 3-Phase application for a back-up generator?
Jeff Hughes 
from Texas 
March 06, 2011
Answer
There is a difference between 208V 3PH and 240V 3PH. The models below are one of each voltage.

120/208V 3-Phase

120/240V 3-Phase

Note: Transfer Switches are voltage specific also...size determined by panel amperage you are powering.
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Will this unit work with the 25kW liquid cooled generator?
Jon 
from Texas 
February 08, 2011
Answer
The Advanced Wireless Monitor will work with Generac Air Cooled and Liquid Cooled standby models that have the Nexus controller.

There is a Harness Adapter required for 22 - 60kW Liquid Cooled models.

Harness Adapter
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