Guardian 11kW

Guardian 11kW

Model #6439

Starting At

$2,509.00 Transfer Switch, Installation, Taxes and Shipping Not Included Add to My Products

Guardian 11 kW Generator Features and Benefits

Provides essential circuit power protection for your home, ensuring the necessities remain powered during an outage. Has the ability to backup a 3-ton air conditioner, well pump or water heater, and the main rooms of your house.

Guardian 11 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 pre-wired transfer switch or 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 11 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 11 kW 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 confitions. It’s also able to withstand 150 mph winds. Optional aluminum available, recommended for salt-air locations.

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

Quick, Quiet Exercise Test
Standby generators require a short run-time periodically, known as exercise, to test and ensure the system is functioning properly and ready for an emergency. The Guardian 11 kW self-test runs for only twelve minutes. Choose your schedule - 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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Rated 5 out of 5 by Comfort, peace of mind Just had generac 11kw whole house unit installed. Smooth process. Completed in less than 4 hours. Luckly have not had to use it yet, but just the peace of mind knowing it is ready when needed is great. September 30, 2016
Rated 5 out of 5 by I love that it will come on automatically when power goes out. The people were wonderful. They answered all my questions, if I didn't understand, they went into depth what my generator will do.They kept my house & outdoor area clean. They said it w/b a full day to install, it was & all areas outside & inside were cleaned before leaving. I can'tell say enough how great full I am. I bought it for safety & security. Thank goodness I haven't had to use it yet. July 14, 2016
Rated 5 out of 5 by Outage Insurance We live in a rural area of southeastern Michigan, where power outages are frequent. After installing our 11k Generac, we never have to worry about losing power again. Typically when you lose power it is never a good to be without it, such as getting ready for work, dinner time, or late evening. We first looked at the 8k model, for basic needs, such as lighting, heat, water, stove, refrigerator. But the price difference to go to 11k was not that much, and it allowed us a few extra circuits for convienence. June 23, 2016
Rated 5 out of 5 by A reliable and quality standby generator Our generator is 10 moths old, and has not failed us through several power outages. It is on-line and generating power within minutes of a power loss. I am notified via my smart phone when it goes into it's weekly exercise, and again when it is back on line and ready. It has been a real comfort to know that our house is never without power, especially when we are away. I recommend this generator to anyone looking for a quality product that is reliable, built to last, and easy to maintain. June 22, 2016
Rated 5 out of 5 by With propane fuel great feature This is my third home with General purchased, no problems with any units. With propane fuel there is ease of operating not filling with gas. Installation was easy all lines well marked and instructions were well written When power goes out the system is always ready June 22, 2016
Rated 4 out of 5 by Nice generator extremely happy with my choice. the dealer i used was awesome. he patiently sat down with me and answered all my concerns. he also did not try to up sale me. he gave me the right size unit for what i wanted to cover. the 11k allows me to run about 90% of my home which is more then enough during a power failure. we've used it a couple times and it kicked on without a hitch. only thing i've learned is that periodically you have to make sure all the bolts are tight due to the vibrations of the generator. we did have a small oil leak due to loosened bolts which my installer fixed for a fair fee. June 22, 2016
Rated 5 out of 5 by Quality peace of mind! After much research we invested in a Generac for our peace of mind. The 1st time it kicked on for an outage, we ran around turning everything on to "test" the unit, you will too, it performed flawlessly. You never have to think about it, but it feels good to know it's there.. READY to run my whole house. May 23, 2016
Rated 5 out of 5 by Installed and Ready Earlier in the year, my wife and I decided on having a backup generator installed. We opted for a unit that provided the basic backup features in case of a power outage. Since moving here just over a year ago, we have already experienced four outages and with a blind elderly mother living with us, that makes life difficult. After some research, we decided on the size and made the call. Our selected dealer / installer responded immediately and after their survey, we completed our selection and set up the installation date. We now have a brand new generator installed and doing its weekly test run. So far, since the installation, we have had no outages but there have been plenty of opportunities owing to the spring storms in our area. We are extremely pleased with the installation, the installer and the services they provide. If we never need the generator, that is fine by me but I know it is sitting there ready to go if we do. May 7, 2016
  • 2016-10-20 T05:31:44.578-05:00
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Rated 4.9 out of 5 by 136 reviewers.
  • 2016-10-20 T05:31:44.578-05:00
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Generac Stock Ticker

  • NYQ
  • GNRC
  • $36.84
  • 10/21/2016 12:08 PM EST