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Generac® Standby Generators offer 24/7 power protection from blackouts whether you're home or away. Automatic, hands-free backup power supply for home or business; kicks in within ten seconds of determining power loss. Continuous fuel choice of LP or natural gas. Features Generac® 999cc OHVI engine.

• Prepacked with a 200 Amp Nexus Smart Switch for up to Whole House coverage
• True Power™ technology for confident operation of sensitive electronic equipment and appliances
• Nexus™ Digital Controller provides a user-friendly LED display and controls for programmable diagnostics and information at-a-glance
• Quiet-Test™ mode for a weekly self test that's quieter than other brands
• Aluminum, all-weather enclosure provides the ultimate protection from the elements. Recommended for salt-air, coastal locations
• External main circuit breaker with system status and maintenance interval LED indicators
• Hour meter monitors run time, providing information to determine maintenance intervals
• Includes external GFCI outlet and composite mounting pad
• 3 year limited warranty
• CARB Compliant

Whether you need power for your home or business, you can count on Generac®. That's because our sole focus is, and has always been, providing dependable backup power solutions that keep life, and business, going when the power goes out.

NOTE: This product is not available for sale in or shipment to all states.

This product is gas powered. Please see our Terms & Conditions for specific instructions for product repairs and returns.

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Reviews

Generac®Generac® 20kW/18kW Air-Cooled Automatic Standby Generator, CARB Compliant

Product Reviews

Overall Customer Rating: 

4.8out of5

Rating Snapshot (134 reviews)

5 stars

114

4 stars

16

3 stars

2

2 stars

2

1 star

0

130 out of 133(98%)customers would recommend this product to a friend.

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134

134Generator | Brand : Generac® | Type : Standby | Application : Professional | Power Rating : 20,000 W | Current Rating : 83.3 A | Voltage Rating : 240 V | Engine : Generac | Product Width : 25 in. | Product Length : 48 in.

Product Reviews

Overall Customer Rating: 

4.8out of5

Rating Snapshot (134 reviews)

5 stars

114

4 stars

16

3 stars

2

2 stars

2

1 star

0

130 out of 133(98%)customers would recommend this product to a friend.

Read all 134 reviews

|

Write a review

Follow this product

Share this product:

Review This ProductProduct Reviews Choose a sort order Rating - High to Low Rating - Low to High Date - Newest First Date - Oldest First Go

Rating: 

5out of5

cvler

Location: Carleton

Excellent

Date:May 13, 2012

Pros: Entire Home

Unit is built well with a neat structual appearance.

Written by a customer while visiting generac.com

Rating: 

5out of5

Ladymulerider

Location: Sims

Age: 45 to 54

Works perfectly, looks great!

Date:May 4, 2012

Pros: Entire Home, Well/water pump, Medical Equipment, Business Equipment

Ordered the unit........which was back-ordered for some time, then Generac called us to let us know it was being shipped, then delivery came with a phone call the day before to verify location and .enable us to schedule being there for the arrival. This was very helpful.

The install went smoothly, and the unit looks really great, runs flawlessly in every aspect. There was a good deal of time in the entire process of the install, a site was prepped, a slab was poured, the propane tank was exchanged for a larger one, the concrete cured, the unit was placed on it. ( We lifted the unit on it's pallet with the tractor with twin hay fork/pallet forks and then tilted it slightly after unbolting the unit from the pallet, and then slid it gently down and onto the slab quite easily, we're in the horse business, so we did this part ourselves having the tractor etc).

We would recommend highly having professionals do the install.

A new LP line was ran to the generator with a new regulator. We knew a master electrician, and he came out and looked at what we had, ordered the conduit and line for the hookup, then the next week the hookup was done and all has worked fine since then,. He appreciated the transfer switch that came with the unit, a well designed arrangement that simplified his work.

Also, the warranty does not start at the date of the actual purchase or delivery..... it begins when all hookups are complete and it is fully operational and ready for service....Outstanding!!

We live not only in the south "tornado alley", we are in a very rural area, we are also on a very long "run" on the power line situation, and limbs, trees, etc get on this during wind events and off goes the power, sometimes for 2 or 3 days. In addition, we are sometimes subject to severe ice storm events, with the power out for perhaps 10 days or so. It is so marvelous to have the capacity now to keep our rural well water flowing for our home and the animals, and keep my spouse's CPAP medical airway device running should the power go off while we sleep.... not to mention the fact that the home and barn run seamlessly, we have running water, heat or air-conditioning, Internet, hot water, pellet stove, cooking, laundry capabilities...everything simply works as tho nothing whatever was out of order. No worries about running only this or only that, it runs everything smoothly, not a flicker on electronics.

We considered converting to LP cook-top, oven, hot water heater.. the cost would have been about the same as the generator, with no well pump, no lights, no TV or Internet etc.. so this decision was so the best we have made in forever, for our personal comfort, our business with the horses, our sanity and health! Now when we are gone for a few days for a ride or competition, the power outages at home will not cause the ruin of the freezer(s) and refrigerator, and water can be provided for the animals at our farm.

We hunt, and have quite a bit of meat from time to time as well as the beef we raise that we put in the freezer. Now that is a precious commodity, and is now safeguarded by our wonderful generator setup. Now when the power goes off at night, we hear the hum of the generator come on , stretch and yawn, commenting "power's off" and go back to sleep! Don't you know that the neighbors that are trying to run extension cords to the portable generators and getting rained on etc might be a tad envious! Hey, that was us, for years and years!

Do this, you will be enhancing the value of your home and have such peace of mind. We are truly thrilled!

Written by a customer while visiting generac.com

Rating: 

5out of5

Gregory58

Location: Livonia

Age: 55 to 64

I no longer worry about power outages. In fact, I can't wait until we have one.

Date:April 20, 2012

Pros: Entire Home

First of all, the unit looks good. I don't mind having it sitting next to the house. Inside the cabinet, the layout of the engine is well thought out. Maintenance points are convenient. I am quite pleasantly surprised at how quietly it runs. After installation, I forgot to listen for it to see if was "exercising" at the programed time. I had to go outside and feel it to see if it was warm. We decided on the 20kw unit so we could power the entire house without any concerns. I've been without power several times over the last few years, once in the dead of winter, and they were not pleasant experiences. Having this Generac at the ready is a relief.

Written by a customer while visiting generac.com

Rating: 

4out of5

William

Location: Niceville

Age: 55 to 64

I have two Generacs two different homes, great product

Date:April 16, 2012

Pros: Entire Home

Ralph, Darrel and Adam from Auxiliary Power Systems Inc., Remlap, AL did an outstanding job on installation and start up. I look for many years of outstanding service from my Generac backup standby generator (20k air cool). The generator was installed at our new home in Sawyerville, AL

Written by a customer while visiting generac.com

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