2017 Briggs & Stratton 20 kW1 Fortress Standby Generator System (040547)

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Briggs & Stratton
20 kW1 Fortress Standby Generator System (040547)



The dealer exclusive Fortress line of standby generator offers premium protection. Offering a 6 year parts, labor and travel limited warranty, the longest warranty in the industry. Also equipped with an oil warmer to help aid in cold weather starting when the temperatures drop below 30 degrees.

Losing power is nothing to worry about any more with the 20 kW1 generator. When the power goes out your backup generator seamlessly provides power to your home within seconds of a power outage. Lights, TVs, washer and dryer - even two 5-ton AC units - are easily and automatically powered by a dependable commercial-grade Vanguard™ engine and our patented Symphony® II Power Management technology.

Contact Dealers for pricing.

Managed Whole House Power

Not all appliances are powered equally. Some, such as your central air conditioner, electric clothes dryer, electric stovetop, oven, or whirlpool tub, require a large amount of power to start up or operate properly.

The Symphony® II Power Management orchestrates these high-demand appliances with lower-demand items to give you true whole-house power with a smaller, more affordable generator.

Learn More About This Unit

  • Running Watts (LP)*: 20,000 LP
  • Running Watts (NG)*: 18,000 NG
  • Engine Brand: Briggs & Stratton
  • Engine Series: Vanguard™
  • Engine Displacement (cc): 993 cc
  • Operation: Fully Automatic
  • Voltage (V): 120/240V AC, Single Phase, 1.0 pf V
  • Running Amps (NG): 75.0 NG
  • Alternator Type: Computer Friendly
  • LP Fuel Consumption**: 50% Load = 2.31 gal/hr LP Fuel Consumption
  • NG Fuel Consumption**: 50% Load = 187 ft3 /hr NG Fuel Consumption
  • Weekly Exerciser: Yes
  • Battery/Battery Charger: Yes
  • Overcrank Protection: Yes
  • Diagnostic Alerts with Remote System Status: Low Oil Shutdown, Engine Does Not Start, Low Frequency, Engine Overspeed, Low Voltage, Low Battery Voltage, Oil Temp High, Transfer Switch Fault
  • Warranty (Product)***: 6 Year Parts, Labor & Travel Limited Warranty Product
  • Length (in): 48 in
  • Width (in): 34 in
  • Height (in): 31 in
  • Weight (lbs): 500 lbs
  • Running Amperage LP: 83.3
  • Hour Meter: Yes
Key Features
  • Symphony II®: Thanks to Symphony® II Power Management System, a smaller home generator system by Briggs & Stratton can meet all your needs and save you money in the process.
  • 6 Year Parts, Labor & Travel Limited Warranty: The longest warranty in the industry. Our most comprehensive 6 year parts, labor & travel limited warranty.
  • Commercial-Grade Engine: A commercial-grade Vanguard™ engine means powerful performance when it matters most.
  • Durable Enclosure: Designed to weather the elements, the system's enclosure is made from automotive-grade Galvanneal steel to resist rust. Its advanced powder coat paint process results in years of protection against chips and abrasions.
  • Flexible Placement3: Have a tight lot line? Worried about your curb appeal? Install your generator as close as 18" for your home. Our generators are in compliancy with the stringent National Fire Protection Agency 37 standard.
  • Superior Customer Support: Shopping for the right standby generator for your home can be confusing, but Briggs & Stratton will be with you every step of the way. Call our U.S.-based Answer Care Representatives by calling (800) 743-4115 or visit the Customer Support Portal to get your questions answered now.
  • Financing Solution: We have partnered with Synchrony to provide financing solutions that fit your needs. Special financing* is available on qualified Briggs & Stratton Standby Generators on the Briggs & Stratton Standby Power Credit Card.*Subject to credit approval Minimum monthly payments required



993 cc


48 in
34 in
31 in
500 lbs

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