Kohler 20RESC 20kW Generator
Natural Gas Fuel Requirements – 20RESC (New) Fuel Supply Pressure kPa (in. H2O) Natural Gas - 0.9-2.7 (3.5-11) Natural Gas Fuel Requirements – 20RESA Fuel Supply Pressure kPa (in. H2O) Natural Gas – 1.2-2.7 (5-11) The differences in the design changes made to the 20RESC are an upgrade to the engine mounting block and the gas regulator. They were upgraded to allow for a lower gas pressure (3.5” water column). Benefit of the new 20RESC - if you have an older gas meter with the new 20RESC – an upgrade may not need to be made to the gas meter-saving you time in permitting and not upgrading you gas meter (cost savings). PRODUCT FEATURES: • 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 • Automatic Transfer Switch Sold Separately- RXT Automatic Transfer Switch is compatible with this generator 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.
TECHNICAL SPECS & DOWNLOADS
Great Experience - Sales, Shipping and InstallationProduct Review Rating: 5/5
Posted by Joe Dame on Jan 02, 2018
I recently purchased a Kohler 20kw generator package and I highly recommend AP Electric as they were great. The purchase and shipping was very easy to arrange. The generator quickly arrived at our NH home and the truck driver delivered it right to the installation area - no heavy lifting required. I also ordered the Kohler concrete pad, battery, cold weather kit and maintenance kit with the generator. Everything arrived in perfect condition - no issues. For the installation, I pulled permits and hired my local electrician and LP gas fitter. The installation was straight forward as I used the matching Kohler 200 amp ATS. Please note that Kohler uses a Belden 4 conductor shielded control cable to connect the ATS and generator. I bought 100 ft of the specified cable online so it was available for the electrician. The generator is fueled by a 500 gallon underground LP tank which was already in place. I highly recommend the cold weather kit if you live in northern areas. The kit included a battery warmer, carb heater and lp regulator heater. The kit was easy to install - the heaters are 110 V and plug into the generator's internal 110 V outlet. During the last 2 weeks, the temperature in our part of NH has been -10 to -20 degrees at night. No worries though as the generator starts right up even at these extreme temperatures. We also had an ice storm last week and the grid power was out for several hours at a time over a 3-4 day period. The generator performed as expected and we had plenty of back-up power for cooking, lighting and heat. Overall, I am very satisfied with the generator and recommend both AP Electric and Kohler to anyone looking for a reliable back-up power system.
Great ProductProduct Review Rating: 5/5
Posted by Ken P on 13 Oct 2017 on Oct 13, 2017
Arrived as advertised. Great information from AP electric staff. Electrician, gas company and local Kohler dealers were terrific. Lost power for 4 hours a week later and everything worked perfectly.
Get a Kohler, you'll be glad you didProduct Review Rating: 5/5
Posted by David K. on Oct 30, 2016
The 20 RESC and RXT Auto transfer switch arrived quickly, good job AP Electric. It took a few weeks to line up my contractors for electric and gas pipe run from the LP tank. I did exchange my 500gal tank for a 1000gal tank, keeping in mind the BTUs/hr needed to run the GEN at full output (~350,000), and how temps below 15F would limit the GEN startup due to lower vapor pressures in a 500gal tank. The GEN runs it all (3+ ton Geothermal Heat/AC), no problem. I had the nearest Kohler dealer do the startup and inspection to start the warranty at that time. The whole project came in under $7000, not including the LP tank upgrade. Very pleased with the GEN, AP electric and my local Kohler dealer. If you have a long run between the GEN and the AUTO transfer switch, I highly recommend a Kohler as it can handle larger gauge wire than other generator brands (I used 1/0 copper, it delivered 242V to the Auto transfer switch, 36' from the GEN). The Kohler GEN is a perfect match for our all electric house, which is out in the country about 6 miles from town.
Kohler is definitely the better choiceProduct Review Rating: 5/5
Posted by David K. on Oct 28, 2016
The 20 RESC and RXT Auto transfer switch arrived quickly, good job AP Electric. It took a few weeks to line up my contractors for electric and gas pipe run from the LP tank. I did exchange my 500gal tank for a 1000gal tank, keeping in mind the BTUs/hr needed to run the GEN at full output (~350,000), and how temps below 15F would limit the GEN startup due to lower vapor pressures in a 500gal tank. The GEN runs it all (3+ ton Geothermal heat/AC), no problem. I had the nearest Kohler dealer do the startup and inspection to start the warranty at that time. The whole project came in under $7000, not including the LP tank upgrade. Very pleased with the GEN, AP electric and my local Kohler dealer. The Kohler GEN is a perfect match for our all electric house, which is out in the country about 6 miles from town.
Go with KohlerProduct Review Rating: 5/5
Posted by Mike Stoner on Oct 21, 2016
I have had automatic standby generators at my homes for many years. All have been Kohler. I've found them to be highly dependable and reliable and would own nothing else.
Great GenProduct Review Rating: 5/5
Posted by J. Morrison on Dec 03, 2015
My Kohler 20RESA arrived fast. Actually faster than I expected. Easy install for my electrician. Runs perfectly and very quite.
Everything in the order process went smoothly.Product Review Rating: 5/5
Posted by William B. on Feb 20, 2015
Submitted on October 12, 2014
I was able to chat online with a representative from AP Electric (Cristina), and then when I was ready to order a week later, I just called the customer service rep's extension. The whole process took about 5 minutes. I received updates on my delivery and it was delivered on the day promised.
If you need a Kohler generator buy it here.Product Review Rating: 5/5
Posted by Kenneth E. on Feb 20, 2015
Submitted on March 24, 2014
Easy to order and shipped promptly. Great follow-up after the online order by a real person.
good service.Product Review Rating: 5/5
Posted by Harold S. on Feb 20, 2015
Submitted on March 12, 2014
things went well.
Pleasant experience & Great PricesProduct Review Rating: 5/5
Posted by Kevin M. on Feb 20, 2015
Submitted on March 11, 2014
WE HAVE ORDERED FROM AP ELECTRIC SEVERAL TIMES AND EACH TIME HAS BEEN A PLEASANT EXPERIENCE. WE RECEIVED OUR ORDERS AS SCHEDULED AND THE PRICING IS GREAT IN COMPARISON TO OTHER COMPANIES.
Excellent!Product Review Rating: 5/5
Posted by Victor Balan on Feb 20, 2015
Submitted on October 21, 2013
Excellent and timely service
Looking forward to buying from AP againProduct Review Rating: 5/5
Posted by Glenn Filippone on Feb 20, 2015
Submitted on July 23, 2013
I have been happy thus far with the service I have received. Hopefully more generator purchases in the coming months.
Great generatorProduct Review Rating: 5/5
Posted by Ross LaRoe on Feb 20, 2015
Submitted on May 08, 2013
I bought this generator to power my whole hose and it works perfectly during all the relevant tests! Now if we can just have a real power outage. Not really.
Great price and easy to orderProduct Review Rating: 5/5
Posted by Keith Freda on Feb 20, 2015
Submitted on March 21, 2013
price and ease of ordering make AP Electric a pleasure to do business with.
What I ordered was here promptly and was exactly what I ordered.Product Review Rating: 4/5
Posted by John Goegel on Feb 20, 2015
Submitted on January 14, 2013
I have yet to have had to use the generator yet so I can only judge the above.
Customers love how easy it is to useProduct Review Rating: 5/5
Posted by Paul Romeo on Feb 20, 2015
Submitted on January 03, 2013
Customers like the usage of this Generator, and the ease of operation
The transaction was very easy and FREE shipping!Product Review Rating: 5/5
Posted by Unknown on Feb 20, 2015
Submitted on December 05, 2012
I was very pleased with the process, responsiveness and details that AP Electric presented on their website. They had the best price. I ordered my generator and the next week it was delivered in perfect condition. Nice work AP Electric.
My installer likes the machine as do I so far.Product Review Rating: 5/5
Posted by Bob on Feb 20, 2015
Submitted on November 22, 2012
It's spot on with it's diagnostics and runs very quiet. During testing it handled the full load required of it. So far I'm happy with the Kohler recommendation.
Thanks APProduct Review Rating: 5/5
Posted by David Barsotti on Feb 20, 2015
Submitted on November 21, 2012
Ordered and received generator in just a few days.
This is a GOOD PRODUCT and these are GOOD PEOPLE.Product Review Rating: 5/5
Posted by Unknown on Feb 20, 2015
Submitted on November 20, 2012
Kohler makes an excellent generator self-contained package. This is my second one bought for home use. AP Electric has been wonderful to work with. Solid advice before selecting --- calling me to verify this is not a scam purchase or someone using my credit card --- prompt shipping --- one of the owner-managers even celled to ask if everything arrived in good condition. It doesn't get any better than that.
Everything worked as planned.Product Review Rating: 5/5
Posted by Mike on Feb 20, 2015
Submitted on November 03, 2012
This was a really great decision from purchasing here to the unit itself. I documented the install with pictures here http://gladue.com/windsor/generator Purchasing your own materials and hiring your own contractors saves you about 50%. I wrapped up this project for about 10 grand with natural gas new install. It would have been about 20 grand if I just hired the Kohler dealer to do it.
Couldn't find a better price online, thanks AP!Product Review Rating: 5/5
Posted by Unknown on Feb 20, 2015
Submitted on September 05, 2012
Generator was received in 4 days from time of order. Have not found a better price, and still received excellent service.
Great discounts and the unit is reasonably quietProduct Review Rating: 5/5
Posted by RP on Feb 20, 2015
Submitted on August 07, 2012
The Kohler 20 kW residential unit seems to be a high quality, reasonably quiet , attractive unit and a good value for the money. The unit came lift gate delivered in just a few days. (Weighs about 500 lbs.) Pay by check and save 2% with AP Electric. I have only tested with a partial load but took it just fine. I have two ASCO 200 amp transfer switches in my electrical service so I use the "2 wire"start feature - not available on Generac similar residential units. It has a built in battery charger. The wiring compartment where the conduits come in is a little bit small but can be done. Hook it up using "Liquid-Tite"flexible conduit and fittings. Run a data cable in conduit if you want to use the On Cue software. I like the On Cue software and I run the exercise cycles manually through my computer when I am home. I like the e-mail notification feature.
The service from AP Electric was great.Product Review Rating: 5/5
Posted by Ronald Kitzmiller on Feb 20, 2015
Submitted on April 17, 2012
I made a couple of calls and each time a person answered the phone immediately (no waiting) and was helpful in answering my questions and was pleasant. I ordered the generator Thursday afternoon and it arrived on Monday. That is great service. The Kohler generator enclosure is very attractive top quality and for sure the generator inside the enclosure is TOP QUALITY!
Very happy!Product Review Rating: 5/5
Posted by Unknown on Feb 20, 2015
Submitted on March 26, 2012
Nice new design.
Generator arrived as per A P Electric notification.Product Review Rating: 5/5
Posted by Marvin Ginsberg on Feb 20, 2015
Submitted on January 02, 2012
The Carrier delivered the generator in good condition and the Driver was very courteous. The Generator has not been installed at the present time
I like this Company.Product Review Rating: 5/5
Posted by Tom Valiante & Son, Inc. on Feb 20, 2015
Submitted on November 28, 2011
We are Contractors, Ordered a Generator, it showed up in 3 days. We checked the shipment and it was damaged, so I refused the shipment with the carrier. I called AP and explained the problem. The replacement was at my yard in 3 days. Tomorrow morning I am ordering 2 more units.
Great generator.Product Review Rating: 5/5
Posted by Power Up Generator Service Co. on Feb 20, 2015
Submitted on November 22, 2011
Do not try any brand other than Kohler.
Great shipping and priceProduct Review Rating: 5/5
Posted by James Haugen on Feb 20, 2015
Submitted on November 11, 2011
The shipping was excellent, the product of course is great, though I have not installed it yet. I have used them in the past and like the Kohler brand.
The 20RESA replaced my Generac 20kWProduct Review Rating: 5/5
Posted by James Annuzzi on Feb 20, 2015
Submitted on October 03, 2011
i will never sell a Generac ever again. thanks Kohler i love the res models :)
Great Tech SupportProduct Review Rating: 5/5
Posted by Unknown on Feb 20, 2015
Submitted on April 06, 2011
Installed the generator with some helpful tech support offered for free at AP - Thanks again!