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Model # 040381

Internet # 203603826

Store SKU # 1000030431

20,000-Watt Air Cooled Home Generator System with Symphony II Whole House 200-Amp Automatic Transfer Switch

This item has been discontinued.
The Home Depot no longer carries this specific product.

$4,599.00 /each


Model # 040381

Internet # 203603826

Store SKU # 1000030431

Store SO SKU # 1000033229

The patented Symphony II power controls provide a managed power solution that gives you access to every powered item in your home, just not at the same time by using power management modules, appliances are prioritized and turn on and off based on need and the electrical load placed on your generator.

  • Powered by a premium-grade Vanguard engine
  • 4-year limited parts and labor warranty
  • Durable, rust-resistant galvanneal steel enclosure
  • Clean, stable power
  • Each generator system includes a transfer switch, 1-Symphony II power management module, basic wireless monitor, hour meter, battery charger and oil

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Length (in.) 
Product Width (in.) 
CA (CARB) Compliant 
Not CARB Compliant 
Color Family 
Commercial / Residential 
Continuous Wattage 
Engine Displacement (cc) 
Engine Make 
OEM Branded 
Generator Features 
Hour Meter,Low Oil Shutdown,Overload Protection 
Operational volume (dB) 
Product Weight (lb.) 
500 lb 
Remote Monitoring 
Response time (sec.) 
UL Listing 
1-UL Listed 
Warranty / Certifications
Certifications and Listings 
1-UL Listed,CSA Listed 
ENERGY STAR Certified 
Manufacturer Warranty 
5 Year Limited Parts and Labor Warranty 


Rated 4.6 out of 5 by 52 reviewers.
Rated 5.0 out of 5.0 by Great Generator We are so excited about our new generator! We have experienced great installation service and highly recommend it!! July 29, 2015
Rated 5.0 out of 5.0 by Satisfied Customer Generator and Transfer Switch ships directly from Briggs and Stratton plant in Wisconsin. Product was delivered to house on time. Hired an electrician to install and a GE certified dealer to oversee installation and start up. Electrician had no trouble installing it and GE dealer (Houston) was great to deal with. Don't cheap out on the installation and be sure to sign up with a local dealer for the annual maintenance contract - it is well worth it. Generator performs a weekly self-diagnostic check and runs for 20 min. Very satisfied with this purchase. Wireless monitor works well too. Note: Air intake is on the right side and discharge is in the front on left side (see attached photos) November 14, 2013
Rated 5.0 out of 5.0 by Great Peace of mind and best value I bought my GE generator to replace a generac that I had nothing but problems it was the best thing I did ! 1- better warranty 2-better sound and more quiet 3-cold weather kit was easy and not expensive as generac and easier to install 4-had its own pad that was not cheap 5- bought the home link so I now know what my generator and power is doing at anytime 6-has a remote monitor also so I know inside the house if there is a problem since I replaced the Generac this unit has been so reliable and never failed to start or work great product best warranty and the best peace of mind I could have from a company with over 100 years of knowledge and reliability February 24, 2015
Rated 5.0 out of 5.0 by My GE Stand By Power I had to replace a damaged 14 year old stand-by power unit with the General Electric 20KW generator. I chose GE over Generac and Kohler because of GE Symphony II power management, internal engine heater, and running DB rating. In addition, certified installation company was of "paramount" importance. Scott and Keith at Emergency Power Solutions, performed a excellent quality installation, have excellent GE product knowledge, and prompt monitoring and communications during power outages. This was a excellent investment for the safety of my family. Works wonderful ! December 12, 2014
Rated 5.0 out of 5.0 by GE 20kW Generator We actually lost power the day after our unit was installed, it worked flawlessly!! EDK Electric and Power sold and installed our generator. We wanted to power our whole house (3 ton a/c, computers, multiple TV's, dryer, range, fridge, lights, home alarm, many lights). This unit does all these things and more. The installers were professional, neat, timely and very knowledgeable. I would recommend GE generators to anyone. December 11, 2014
Rated 5.0 out of 5.0 by Best purchase I ever made I purchased my GE Generator System after a visit to a 55+ Expo at Dover Downs in Dover, DE. I had thought about a generator and wanted a quote on purchasing one. While at the Expo I meet Nick Sebastian from Towles Electric Inc in Smyrna, De.. We set a appointment and Nick could not have been nicer. We purchased a 20k whole house generator from him. After Hurricanes Irene and Sandy 2 year's in a row I wanted peace of mind, that's what Nick and Big Bertha ( our generator) have done. I LOVE LOVE my generator, when the power is out we are comfortable and safe in our home. October 8, 2014
Rated 5.0 out of 5.0 by A superb solution for larger homes I have split 400 amp electric service and wanted to purchase a standby generator that could accommodate that load. The 20,000 Watt GE Symphany was the only generator that could do this at an affordable cost. The dual-transfer switches solved the first problem and I purchased 5 modules to handle the high wattage appliances in my home (3 AC compressors, a SPA and an oven). I really have to compliment the installed (Doug Dorrman of Dorrman Electric). He took care of everything from permits, to plumbing to being present at the inspections. He worked outside when it was 10 below zero and had us up and running quickly. His work was meticulous. February 23, 2014
Rated 5.0 out of 5.0 by This is my Dream Generator! Right now we only have one of those old gasoline, Really LOUD generators and although I've been grateful to have it after Tornados and Ice Storms, I would love to get one of these Beauties!I read about the specs after entering my house size, etc and then I have been reading the reviews of the people who have one of these. It sounds Amazing! I worry about some type of diaster happening, maybe even the power grid failing and in addition to not being able to buy more fuel for ours in that scenario, the Extreme Volume of our generator lets individuals with bad intentions think that if you're running a generator, then you must have something to protect! Namely Food! I have a little stored back but not enough to get through 6 months much less supply hoards of people who didn't even store back a few packages of Ramen noodles. I am excited about you offering financing and hope that soon I may be posting a New review about how well our GE Generator performed this coming winter! Thank you! September 6, 2014
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Curbside Truck Shipping (By Appointment) includes delivery to receiving area/dock for businesses or curbside for residential orders. The carrier will contact you to make a delivery appointment with a 4 hour window once the items have arrived at the local hub in your area. Delivery appointments are required.

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