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


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.

Was   $4,496.00
$4,046.00 / each

Save $450.00 (10%) through 10/01/2014

Kohler MAP Holiday
Promotion Details
Price Valid : 09/19/2014 - 10/01/2014
Kohler MAP Holiday
Item cannot be shipped to the following state(s): AK,CA,GU,HI,PR,VI


In Stock



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 Powerboost 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

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


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


Rated 4.7 out of 5 by 19 reviewers.
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 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 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
Rated 5 out of 5 by Well worth the investment Had a minor issue during the initial startup which through the help of Kohler (Retail Sales Co-op and customer service), Home Depot (customer service resolution dept) and after some time the local distributor (most importantly the technician)but all was resolved and and the unit works impecablely well. It is quiet, starts and switches over in about 3-5 sec. in a tested (Main breaker killed) power failure will know for sure when the real deal power failure happens but more then confident it will be there when needed. Well worth the investment, more or less insurance for piece of mind during major power failures like we had when Sandy hit us. It came with everything needed for the install. I invested in the accessories of a carb heater and the OnCue Monitoring software and they are both easy to install and well worth it. Kohler has been around for a long time and they build a high end quality product. Has a great warranty also. December 15, 2013
2 3 >>


Curbside Truck Shipping (By Appointment) includes delivery to receiving area/dock for businesses or curbside for residential orders. The carrier will contact you to make a delivery appointment with a 4 hour window once the items have arrived at the local hub in your area. Delivery appointments are required.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.