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The Generac Protector qs 22kw automatic standby generator (premium-grade) is available for purchase today.

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Generac Protector QS® 22kW Automatic Standby Generator (Premium-Grade)

(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
2 Reviews
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In-Stock Only 3 In-Stock
Ships Monday, Oct 24th

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  • Features
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Liquid Cooled Standby Generators
22 kW
Rated Watts
120/240 Single-Phase
2.4L I-4
Premium-Grade Standby Generator
Designed for luxury homes & small commercial buildings
Runs off natural gas or LP fuel supply

Low-speed exercise mode for quieter weekly tests; 61 dB @ 23'

Multi-Lingual Evolution
Two-Line LCD Display provides service & maintenance intervals

Automotive-Style Engine
Operates at half the speed of other engines (1800 vs 3600 RPM)
Powerful Generac in-line 4-cylinder liquid-cooled engine

Sound Attenuated, Acoustically Designed Aluminum Enclosure
Corrosion-resistant material ideal for salty air conditions
Lockable, external viewing window for quick status check

Automatic Shutdown Safety Feature
High coolant temp, low coolant, low oil pressure and overspeed

Mobile Link (Sold Separately)
Easily check generator status via computer, tablet or smartphone

Transfer Switch (Sold Separately)
Customize your system based on your actual application
Engine Brand
Generac 2.4L 4-Cylinder
2400 CC
Consumer Engine Warranty
5 Years
Commercial Engine Warranty
5 Years
Engine RPM
1800 RPM
Low Oil Alert/Shutdown
Product Specs
120/240 Single-Phase
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 (BTU: 190,000 BTU/HR) ft3/hr
NG Fuel Consumption @ 100% Load
316 (BTU: 316,000 BTU/HR) ft3/hr
LP Fuel Consumption @ 50% Load
2.1 (BTU: 190,575 BTU/HR) gallons/hr
LP Fuel Consumption @ 100% Load
3.4 (BTU: 308,550 BTU/HR) gallons/hr
Rated Amps
92 @ 240 Volts (Single Phase) Amps
Decibel Rating @ 7m
61 Test (70 Run) dbA
Transfer Switch
Automatic (Not Included)
Not Included (525 CCA)
Mounting Pad
Concrete (Not Included)
Cooling System
Liquid Cooled
UL Listed
Made in USA
843 Pounds
Product Length
62.2 Inches
Product Width
30.6 Inches
Product Height
38.6 Inches
Consumer Warranty
5 Years
Commercial Warranty
5 Years

*Ask Mike about the Generac Protector RG02224ANAX. Sorry, no repair questions:




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  1 Question
Q: I have 200 amp service with a heat pump and all other appliances are electric. Will I be able to have my whole house work with this model?
by Vincent Generoso from South Carolina on June 30, 2016

A: Thank you for visiting Electric Generators Direct.

In regards to your question, proper sizing of the generator is crucial to the success of any installation and requires a good working knowledge of electricity and its characteristics, as well as the varying requirements of the electrical equipment comprising the load. When analyzing the electrical load, consult the manufacturers nameplate on each major appliance or piece of equipment to determine its starting amperage.

The following formula can help determine the starting wattage. (Starting Amps x Volts = Watts) When choosing the generator output select a rating that is approximately 20 to 25% higher than the peak load (for example, if the load is about 8 kilowatts, select a 10 kW generator).

A higher rated generator will operate comfortably at approximately 80% of its full capacity and will provide a margin of flexibility if the load increases in the future.

certified electrician should be consulted for proper sizing and installation of any generator.

I have attached the Generac estimated sizing calculator to help you get started.
Generator Sizing Calculator

If you have any further questions please let us know.
by Mike, Product Expert
Generac Protector RG02224ANAX Reviews & Ratings
2 Reviews  Sort by 
Mike, the Generator Expert
Electric Generator Expert

Product Expert
Total Reviews
103 Reviews
Total Helpful Votes
8710 Helpful Votes
Electric Generators Direct Recommended

Sometimes, air cooled generators just aren't good enough.

The Generac QuietSource Protector 22kW is the ultimate "entry-level" whole house generator.

First, it features a high-quality automotive-style (instead of lawn-mower style) engine. Instead of running at 3600 rotations per minute, it runs at 1800 RPM. By running at half the speed, the engine is a lot quieter, consumes less fuel and lasts much longer.

Secondly, the QuietSource includes WhisperTest technology. When... more
Mike Recommends This Model
Was this review helpful?
Richard L.
Shell Knob, MO
Purchased from Electric Generators Direct
Purchased 5/31/16
Most Helpful Positive Review
5 out of 55 out of 55 out of 55 out of 55 out of 5
Extended Warranty And Product Review
Since we just purchased and had installed our new Generac 22kw, a few weeks ago, we found out about your free 10 yr. Extended warranty program. We would like to apply for that, please send us the information.

This is our second Generac Generator. Our first gave us good and dependable service for our home in the Sierra Nevada Moutains in California. We moved to a very remote home on the shore of TableRock Lake in Southwest Missouri. Occasionally,There are power outages and we want to be... more
Richard Recommends This Generac Protector Product
Richard's Experience With Electric Generators Direct
Web Site


"Our Generac Generator was shipped on time and received in perfect condition on a wood pallet and enclosed in a large heavy cardboard crate! We had a professional electric company hook it up as it sits proudly on a large concrete pad we had built just for it! We don't wish for a power outage, but we're not afraid of one either!"
Was this review helpful?
Free Freight
  • Ships via Semi-Truck
  • Requires a loading dock or forklift
  • Free to Lower 48 States
We currently CANNOT ship this product to Alaska, Hawaii or any destination outside of the United States

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Shop for the Generac Protector QS 22kW Automatic Standby Generator (Premium-Grade) at Electric Generators Direct. Research Generac Protector 696471616323 standby liquid-cooled generators online. Find Generac Protector RG02224ANAX standby liquid-cooled generators & Protector QS 22 kW Generator features and specifications. Get the best deal; compare Generac Protector RG02224ANAX prices now. Buy the RG02224ANAX direct and save.