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Generac

Model 6438

Internet #204006867

Store SO SKU #1000032978

11,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch

Was  $2,997.00
$2,697.30 /each

Save $299.70 (10%)  through 09/14/2016

Save 10% on Generac Automatic Standby Generators (6kW - 60kw)
Promotion Details
Price Valid : 08/25/2016 - 09/14/2016
Save 10% on Generac's 11/10 Automatic Standby Generator
  • Generac for reliable and affordable home back up power solutions.
  • The Generac OHVI engine is purpose-built for extended run times
  • True Power Technology delivers best-in class power quality

Frequently Bought Together

Product Overview

Generac's 11,000-Watt Guardian Series provides the automatic backup power you need to protect your home and family during a power outage. Connected to your existing LP or natural gas fuel supply, it kicks in within seconds of determining power loss automatically and runs for as long as necessary until utility power returns. Control your power. Control your life.

  • System includes: 11,000-Watt generator, 200 Amp transfer switch, evolution controller and composite mounting pad, mobile link and 26R battery purchased separately
  • 24/7 Generac customer care support 365 days a year, power outages do not always occur during normal working hours that is why we are standing by
  • Generac OHV engine is purpose-built to run dependably for extended periods, delivering power when you need it most
  • Generac evolution controller features a dual-line, multilingual LCD display allowing for easy monitoring and management of generator functions, built-in hour meter and external at a glance indicator lights
  • Certified for 18 in. installation to the home (3rd party-certified to NFPA standards provided it is located away from doors, windows and fresh-air intakes and unless otherwise directed by local codes)
  • Tool-less fuel conversion allows for easy switching between natural gas and LP fuels in the field
  • Rated for operation in areas with low natural gas pressure, significantly lower than published numbers for competitive standby systems (Generac is the only manufacturer to certify operation on only 3.5 in. of water column)
  • Sturdy gal anneal steel enclosure with rhino coat finish for superior weather protection to withstand 150 MPH winds
  • DPM technology intelligently manages household loads for a more affordable standby solution
  • True power technology provides clean, smooth operation of sensitive electronics and appliances
  • Mobile link compatible wireless remote monitoring system receive status updates using your computer tablet or smart phone giving you peace of mind even when you're away (purchased separately)
  • Generac promise engineered and supported by a 5-year limited warranty and 24/7 customer care support 365 days a year
  • Download the "Warranty" document from the info and guide section of this web page; then the follow the instructions to claim your free 10 -year extended warranty



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Customer Questions & Answers

96 Questions123 Answers

Customer Questions & Answers

11,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch
11,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch

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4 answers

does it come with the battery do i need to purchase anything else

This question is from 11,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch
Asked by
papa
mass.
November 28, 2011
+1point
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Answers (4)

Asked by
Beckley WV
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September 7, 2015
Answer: 
I am unclear under your system includes section if it is or is not included
+4points
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Asked by
Herndon, VA, USA
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November 1, 2012
Answer: 
Battery does not come with the generator. Add about $100 for the battery (which can be bought at Costco / Sams Club / Sears / most type & battery shops)
+12points
13out of 14found this answer helpful.
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Asked by
Lemoyne, PA, USA
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May 8, 2012
Answer: 
You need to buy a Group 26R battery and all the wire and conduit, etc. as well as fuel supply system.
+18points
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Asked by
Read all my Q&A
November 30, 2011
Answer: 
The unit does not come with a battery. We recommend Generac model # 5819 wet cell battery.
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3 answers

What is the house sq footage this unit will control?

This question is from 11,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch
Asked by
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May 25, 2016
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Answers (3)

Asked by
Topsham, Maine
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Home Improvement Profile: DIYer
May 27, 2016
Answer: 
It will be about your electrical draw and what you may or may not have for larger draw items. ie, Furnace, HVAC system, air conditioner(s), heat pump(s), well pump, blow dryer, microwave, coffee maker, etc.
In my case, if I had heat pumps, I would have had to install a 14KW or 16KW.
You can consult with an electrician in your area. They would be able to give you specific electrical draw of your Read More
It will be about your electrical draw and what you may or may not have for larger draw items. ie, Furnace, HVAC system, air conditioner(s), heat pump(s), well pump, blow dryer, microwave, coffee maker, etc.
In my case, if I had heat pumps, I would have had to install a 14KW or 16KW.
You can consult with an electrician in your area. They would be able to give you specific electrical draw of your household.
Hope this helps. Read Less
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May 26, 2016
Answer: 
The capacity of generator is determined by the wattage they need to supply to a house, not the square footage of the residence.
+2points
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Asked by
Read all my Q&A
May 26, 2016
Answer: 
We do not manufacture our automatic standby generators per square footage specifications. The 11kW unit, model number 6438, features a continuous rated output of 11,000 watts and a continuous load current of 45.8 amps at 240 volts when operating on a liquid propane fuel source. When operating on natural gas, the unit will feature a rated maximum continuous load of 10,000 watts and load current of 41.7 Read More
We do not manufacture our automatic standby generators per square footage specifications. The 11kW unit, model number 6438, features a continuous rated output of 11,000 watts and a continuous load current of 45.8 amps at 240 volts when operating on a liquid propane fuel source. When operating on natural gas, the unit will feature a rated maximum continuous load of 10,000 watts and load current of 41.7 amps. We would recommend ensuring that any loads you intend on backing up with this particular unit do not exceed the aforementioned ratings. To ensure that you are utilizing the appropriate products for your backup power needs, we would recommend working with a certified installer in your local area. For help locating a certified party closest to you, call us directly at 888-GENERAC (436-3722). Read Less
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3 answers

does this come with automatic switch over with in so many seconds

This question is from 11,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch
Asked by
harley
michigan
February 2, 2012
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Answers (3)

Asked by
Herndon, VA, USA
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November 1, 2012
Answer: 
yes it does. once power failure is detected, after about 20 seconds or so, the engine automatically starts up, waits for another 5 seconds or so to stabilize the cycle, and then automatically throws to transfer switch.
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Asked by
Lemoyne, PA, USA
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May 8, 2012
Answer: 
yes, after about 10-15 seconds, the generator starts and in another 5 seconds it is automatically brought online by the transfer switch. When the power comes back on, it swithes back to the utility and the generator runs for about a minute to cool off.
+18points
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Asked by
BESTServices
Waterloo, IA
February 4, 2012
Answer: 
Your generator will start upon a power outage in 10 Seconds, and then send a signal to transfer within the next 10 seconds. So plan for 20 seconds of power outage!
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3 answers

does the 10kw model 6051 come with a mounting pad?

This question is from 11,000-Watt Air Cooled Automatic Standby Generator with 200 Amp SE Rated Transfer Switch
Asked by
Louie
south plainfield nj
October 31, 2011
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Answers (3)

Asked by
Herndon, VA, USA
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November 1, 2012
Answer: 
Yes
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Asked by
Lemoyne, PA, USA
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May 8, 2012
Answer: 
Mine did...all one piece when shipped. You just need to have a good 5 inches of gravel base, leveled and tamped. I used four inches of limstone gravel topped with 1 1/2 inches of pretty pea gravel bought in 50 lb bags at HD
+15points
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Asked by
Read all my Q&A
October 31, 2011
Answer: 
Yes, it comes with a composite mounting pad. If your local building codes allow it, you can install your generator on this pad without the need for a cement pad. Please contact your local building authority to understand the specific building code requirements in your area.
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Customer Reviews

Rated 4.8 out of 5 by 158 reviewers.
Rated 5.0 out of 5.0 by Generac Generator Generac 11KW generator: Installation is pretty straight forward for this unit. If you are installing this yourself you should have w working knowledge of wiring (high and low voltage), Plumbing if you are installing LP or NG, local codes and permits, if you install main auto transfer switch the power must be disconnected to rewire the panel and an inspection must be done before the power is reconnected. The installation does take some time to do it right but is well worth it for the peace of mind in an emergency. Be aware of the additional expense of the materials needed for the installation and inspections. VERY HAPPY WITH THE UNIT. December 16, 2015
Rated 5.0 out of 5.0 by Best Home product line. Ever I installed this unit from ground breaking to Inspection. I am not an electric contractor but 42 years as an elevator Installer.. This was easy . Don't hesitate go big ! December 22, 2015
Rated 5.0 out of 5.0 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 4.0 out of 5.0 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 5.0 out of 5.0 by excellent product Not too hard to install, I have a friend who is an electrician an another friend who is in plumbing and heating to install the gas line so I didn't have to pay a lot for install. Works great in tests. I haven't had to use it yet for power outage. May 29, 2016
Rated 5.0 out of 5.0 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 5.0 out of 5.0 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 5.0 out of 5.0 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
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