Guardian 20kW

Guardian 20kW

Model #6730

Starting At

$4,039.00 Transfer Switch, Installation, Taxes and Shipping Not Included Add to My Products
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With the Purchase and Installation of a Qualifying Home Backup Generator

Purchase a qualifying Generac automatic home standby generator Feb. 24 through Mar. 31, 2017, and have it installed by May 15, 2017, you’ll receive a FREE premium 3100 PSI pressure washer – a $399 value! It’s the Ultimate Power Deal! Take advantage of this offer now, and never be powerless again! Hurry, this offer ends March 31, 2017.

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Guardian 20 kW Generator Features and Benefits

One of the most powerful air-cooled generators on the market today, the Guardian Series 20 kW automatic home standby generator can provide whole-house backup power for many homes.

Guardian 20 kW Generator <strong>Features and Benefits</strong>

Generac OHVI® Engine
Your Guardian Series generator might have to get you through days—or weeks—without utility power. Generac’s OHVI® engine, specifically designed for generator use, provides the reliability to power through the most severe outages.

True Power™ Technology
Best-in-class power quality with less than 5% total harmonic distortion means clean, smooth operation of your sensitive electronics and appliances.

Evolution™ Controller
The next generation of intuitive controllers featuring a multilingual, two-line LCD text display with color-coded, backlit buttons.

Certified for 18" Installation to the Home
Third-party certified to NFPA standards to be installed as close as 18” from the home’s exterior wall, provided it is located away from doors, windows, and fresh-air intakes, and unless otherwise directed by local codes.

Easy Installation
When combined with a Smart Switch, re-engineered connection points, and composite mounting pad that eliminates the need for a poured concrete base (unless specified by local codes), the Guardian Series 20 kW generator is easy to install.

Rated for Operation in Areas with Low Natural Gas Pressure
In areas with low natural gas pressure, the Guardian Series 20kW generator can operate on natural gas pressures of only 3.5” of water column.

All-Weather Steel Enclosure
Our durable powder-coat finish helps make the sturdy, Galvanneal steel enclosure perfect for all weather conditions. It’s also able to withstand 150 mph winds.

Tool-less Fuel Conversion
Switch between natural gas and LP fuel in the field in a few seconds, without the need for any tools.

Quiet-Test™ Mode
All standby generators run a weekly test to ensure the system is running properly. Thanks to Quiet-Test, your Guardian Series home standby generator runs its self-test at a lower, quieter RPM than standard operation, and can be programmed to run weekly, bi-weekly, or monthly.

Mobile Link™ Compatible
Take advantage of Generac’s Mobile Link cellular remote monitoring system and check on your generator’s status using your computer, tablet or smartphone, even when you are away. Sold separately.

Non-cellular remote monitoring options are also available for generator monitoring from inside the home.

24/7/365 Customer Support
Power outages don’t always occur during normal working hours. That’s why Generac’s customer care call center—right here in Wisconsin—provides support any time of day or night, all year long. Generac is standing by 24/7, every minute of every day, to answer your questions.

5-year Limited Warranty

Home Generator Buyer's Guide

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We reserve the right to alter or discontinue the terms of these promotional offers anytime.

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Rated 5 out of 5 by from Better than 5 stars!!!!! We had our Generac 20kW and whole house switch installed in March 2014. Ever since the install we have been hoping for the power to go out (strange yes but wanting to test the investment). Finally the power went out during a thunderstorm Sept. 1st. The generator started confidently just like it does on it's weekly exercise runs. We were so pleased that we did not need to drag out the old portable generator. During the 6 hours of outage we ran, 3 TVs, 3 computers, the dishwasher, the AC, 2 fridges, 1 freezer, the sump pump, the well pump, the garage door and almost every light in the house at varying times. The Generac never missed a beat and was so quiet when it was time for bed nobody complained like they did with our old portable. Fantastic product. Exactly why my parents and in-laws installed their's a few years ago.
Date published: 2014-09-02
Rated 5 out of 5 by from Just finished 12 days of flawless power after Sandy After last year's hurricane here on Long Island knocked out power for several days leaving our sump pumps useless, we purchased the 20k unit...couldn't have imagined it would be running for 12 days straight less then a year later! Our power does get knocked out pretty regularly, and just last month the unit was running for 5 hours. I recently had the radio remote installed, right by my home alarm keypad. I'd highly recommend it, as it gives you the added peace of mind knowing the unit is ready to go without going outside and opening up the unit. Excellent unit, would highly recommend it.
Date published: 2012-11-11
Rated 5 out of 5 by from great features electric was out only 15 mins. generator worked great
Date published: 2017-02-16
Rated 4 out of 5 by from 10 year parts and labor warranty I never received confirmation of my 10 year parts and labor warranty that was supposed to be provided
Date published: 2017-02-10
Rated 5 out of 5 by from Works well We are pleased so far on how this product has worked without any issues.
Date published: 2017-02-07
Rated 5 out of 5 by from The product works well. We are very pleased with our new generator. In the past we experienced power outages and we were left with power surges that affected several appliances in our home and resulted in us having to replace them .Now we have the peace of mind with our new product that this will not happen in the future.
Date published: 2017-02-04
Rated 5 out of 5 by from A+ Knowing it's there is a load off our mind. It is very smooth and relatively quiet. We love hearing it run it's weekly test
Date published: 2017-02-04
Rated 5 out of 5 by from Beauty & reliability I like having a dependable source of electricity as I live in a rural area prone to black-outs! So nice to not have to fool with a portable generator anymore!
Date published: 2017-02-03
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20kW-6730 is rated 4.8 out of 5 by 391.
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