KOHLER 20,000-Watt Air Cooled Standby Generator with Automatic Transfer Switch and Load Shed Kit-20RESAL-SE - The Home Depot
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New Model

20,000-Watt Air Cooled Standby Generator with 200 Amp Service Entrance Rated Automatic Transfer Switch and Load Shed Kit
  • Model # 20RESAL-200SELS
  • Internet # 205816039

20,000-Watt Air Cooled Standby Generator with 200 Amp Service Entrance Rated Automatic Transfer Switch and Load Shed Kit


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Discontinued Model



Model # 20RESAL-SE

Internet # 205216697

20,000-Watt Air Cooled Standby Generator with Automatic Transfer Switch and Load Shed Kit

KOHLER 20,000-Watt Air Cooled Standby Generator with Automatic Transfer Switch and Load Shed Kit

This item has been discontinued.
The Home Depot no longer carries this specific product.



Model # 20RESAL-SE

Internet # 205216697

Whether you’re home or away, your KOHLER Generator will automatically kick in whenever the power goes out. Restoring power in as little as 10 seconds, KOHLER Generators have extraordinary reliability and quiet operation - similar to a central air conditioner. KOHLER backs each generator with a 5-year/2,000-hour limited warranty. From our first generator in 1920 to our bold new lineup now, KOHLER Generators are a trusted brand by hospitals, airports and the National Weather Service and Home Depot stores nationwide.

  • Includes: KOHLER 20,000-Watt generator, 200-Amp SE, indoor/outdoor load-shedding transfer switch, integrated mounting pad, flexible fuel line and easy connection terminal block
  • Commercial grade engine - KOHLER Command PRO engine designed for heavy-duty applications far exceeding the demands of a standby generator
  • Premium power quality - +/-1%-Voltage regulation and less than 5% harmonic distortion protects your most sophisticated electronics from damage
  • Powerful performance- exclusive Power boost technology allows you to run central air and other large appliances all at the same time (based on generator and load size)
  • Fast response - automatically restores power in as little as 10 seconds
  • Quiet operation - low decibel levels similar to central air unit and rated according to EGSA (electrical generating systems association) standards
  • Corrosion-proof enclosure - protection from even the harshest conditions
  • Premium warranty - 5-year/2,000-hour limited warranty
  • No refueling - runs on your home’s natural gas (NG) or liquid propane (LPG)
  • Built in load shedding, Additional accessories available: maintenance kit (# 202022473), carburetor heater (# 203269644) and fuel regulator heater (# 204080650)
  • Remote monitoring-optional OnCue plus or OnCue plus wireless remote monitoring system gives you control and communication with your KOHLER Generator from anywhere in the world - without a cellular contract or poor reception (see Home Depot item #205104528 and #205467676)
  • Installation and local permitting charges are not included, To locate an authorized KOHLER installer, please call 1-800-717-2565, Group 51 battery sold separately

Info & Guides

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Assembled Depth (in.) 
26 in 
Assembled Height (in.) 
29 in 
Assembled Width (in.) 
48 in 
Height (in.) 
Product Height (in.) 
Product Length (in.) 
Product Width (in.) 
CA (CARB) Compliant 
Not CARB Compliant 
Color Family 
Commercial / Residential 
Continuous Wattage 
Engine Displacement (cc) 
Engine Make 
Hour Meter 
Low oil shutdown 
Operational volume (dB) 
Product Weight (lb.) 
500 lb 
Remote Monitoring 
Sold Separately 
Response time (sec.) 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 
ENERGY STAR Certified 
Manufacturer Warranty 
5-Year Limited Warranty 


Rated 4.5 out of 5 by 2 reviewers.
Rated 5.0 out of 5.0 by Great generator reviews from Consumer Reports Magazine Rated number 1 generator in Consumer Reports Magazine. Yes a little more money than the Generac and Ge ,but well worth the money. Kohler has been around a long time. FYI you need a kohler generator rep to do the first start up if you don't they will void warranty ,like all manufactures . If you are a good diy person and have knowledge of electrical systems you can hook this up yourself. but have a rep from your area do the start up . A start up can cost about 350 dollars My start up was 250. I have never had problem with Kohler engines . I have Kohler engines in John deere tractors an yard machines that are over 40 years old and still running strong February 25, 2015
Rated 4.0 out of 5.0 by 20kw Home Generator Installed this unit myself. Had problems with the weekly test. The unit would surge only on the weekly test. Called the factory. Took several weeks to find a dealer that would come look at the unit. I was told the problem was the fuel line. After having the propane guys test everything and it all tested good still problems with the weekly test. Both the dealer and the factory pointed at my installation and fuel line problems. So I said i will pay you to fix anything you find wrong that is causing the problem. They rerouted the fuel line.... Still the same problem with the weekly test. So i guess it was not my install after all. Now we are at 4 months later the factory came out with new controller code. Fixed the weekly test but now it surges when it starts for a power outage. Now another month has gone by. The dealer came out and did some custom codes to make it work. I was told this is required when it is cold outside. Now we wait for spring to see what happens when it is warm. Very frustrating. The unit is good but lacks a good network of dealers. Dealers only want to work on the big stuff they do not have time for us home guys. Find a local dealer first then buy what they service. No mater how good you are you still need a dealer to make custom changes to the controller code. February 25, 2015
  • 2015-05-26T10:46:42.024-05:00
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