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


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.

$4,496.00 / each


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.)  29 
Product Height (in.)  29  Product Length (in.)  48 
Product Width (in.)  26  Width  26 
CA (CARB) Compliant  Not CARB Compliant  Color Family  Beige 
Commercial / Residential  Residential  Continuous Wattage  20000 
Engine Displacement (cc)  999  Engine Make  Kohler 
Hour Meter  Yes  Low oil shutdown  Yes 
Operational volume (dB)  69  Product Weight (lb.)  500 lb 
Remote Monitoring  Sold Separately  Response time (sec.)  10 
Returnable  Non-Returnable 
Warranty / Certifications
Certifications and Listings  1-UL Listed  ENERGY STAR Certified  No 
Manufacturer Warranty  5-Year Limited Warranty 


Rated 4.8 out of 5 by 21 reviewers.
Rated 5 out of 5 by Great standby The installer also sells a competitor's brand, but put this one on his own home. Definitely do buy the one with the transfer switch, as buying it separately costs twice as much. Tough to move into place, as I had to buy a couple of 3/4" iron pipes and some heavy rope to build a bridle, then lift it into place with a Bobcat with forks (weighs 565#), but parked it on the pad I had poured, and it's going nowhere now. Be sure to get one big enough for whole house supply, as this one is for mine, but even then, you can't run everything including the A/C at once. Used with a bit of sense, it's plenty big. If you live in country with hard freezes, get the heater kits to be sure it starts in frigid weather. It's worth the extra cost for insurance. Once set up, it's trouble-free, self-testing, and about the only maintenance is a yearly oil change. Get it professionally wired, as it's no job for an amateur. October 7, 2014
Rated 5 out of 5 by Great attention to detail!!! The Kohler generators are superbly crafted and well thought out. From the oil/air filter location to the pad holes for easy lifting and moving. The On Cue system for convenient monitoring from your mobil phone and/or from your computer is also a great add-on feature for these units. I can conveniently monitor the performance of my generator from the comfort of my home or from anywhere in the world. May 2, 2014
Rated 5 out of 5 by Went between Kohler and Generac - Went with Kohler I decided to go with Kohler on professional installer's recommendation. Very well made and I preferred the composite cover material vs Generac aluminum. First time power failed, it literally kicked on in probably no more than 3 seconds. Highly recommend setting this on a pre-fab concrete slab and hire a professional installer and plumber to complete the work properly. Very happy to have peace of mind and that's really what you're paying for. Keep in mind this is a big-box version with the transfer switch included (RESAL vs RESA). From a power equipement company, they don't come together in a package. You will need to purchase each seperately. However if you do that, you do get a slightly upgraded controler. I wasn't too concerned about that though, so went with Home Depot. Fast and Free delivery! September 3, 2014
Rated 5 out of 5 by 20,000-Watt Standby Generator with 200Amp Whole House Service Entrance Automatic Transfer Switch with Load Shed Kit This Kohler unit was shipped on time and with much care. I can not say enough about this product. The manuals were easy to understand and also to implement during the installation. it is a project for individuals with skillsets for this kind of work. but when it is up and running this Kohler 20KW stand by generator is a "peace of mind" gen-set when your power goes out. We live in Western NY and the winters are harsh at times, with ice storms and power grids fluctuating and going out from time to time. So this installation was a no-brainer. If you can afford it we highly recommend using Kohler products, they are very well made and have a great warrantee. January 28, 2014
Rated 5 out of 5 by Has not been put in to service yet the unit is still being installed by my electrician and propane supplier but both think the product is superior. September 16, 2014
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