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Generac Generators
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Guardian Series 20 KW
One of the most powerful air-cooled generators on the market today, this unit provides whole house power protection for many homes. In addition to essential circuit coverage, the 20 kW unit can back up multiple air conditioners and remaining rooms in your home like home theaters and offices.

Generac's Nexus™ Controller is the most comprehensive available. The dual line, tri-lingual LCD display allows for easy monitoring and management of generator functions.

Generac’s OHVI® engine was designed specifically for generators. It outperforms competitive generator engines with an engine life that is three to four times longer and has a significantly longer period between scheduled maintenance checkups.

Aluminum, all-weather enclosure prolongs the life of your generator with corrosion resistant protection from the elements, making it ideal for salt-air coastal climates. Modeled to withstand winds up to 150 mph. A Base fascia comes standard, providing protection against debris and rodents and completing the stylish look of your generator.

External GFCI Outlet safely provides greater external usability during a power outage.
Hour meter monitors run time, providing information to determine maintenance intervals.
External "At-a-Glance" indicator lights offer an easy way to tell generator status without opening the generator 
Generac's Guardian Series standby generators have earned the Seal after review by the Good Housekeeping Research Institute.

Generac Generators
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Learn about Generac's industry-leading clean power for sensitive electronics, with less than 5% total harmonic distortion.

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Generator Reviews
08/31/ 2011
I installed the natural gas operated 20kw Guardian series generator in early June and had the opportunity to put it in use during and after Hurricane Irene.
It ran continuously for five days and more than meet our needs for electrical service during the time. It's an enormous and positive step above a portable for home service.

I have a generac 20 KW that has been running my home for a week after the latest tropical storm and if you ask me there is no better recomendation than that. I LOVE my generator.

Installed about 8 months ago (2010) Love my generator but had some problems with a ''low Voltage'' RED warning which stops the generator from working in a power outage or on the weekly self-test. 5 times out of 10 it stopped hence made the generator completely useless when I needed it the most.
After 4 visits from the dealer (great service, always available), Generac issued it seems a notice about this problem…Seems the fault was a faulty main panel computer. Since the dealer changed the faulty panel, I never experienced any problem... works great now and no other issues…hope it lasts.