Briggs and Stratton 20kW Fortess GeneratorNew

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.

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  • 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.
  • A commercial-grade Vanguard™ engine means powerful performance when it matters most.
  • Have a tight lot line? Worried about your curb appeal? Install your generator as close as 18" from your home. Our generators are in compliance with the stringent National Fire Protection Agency 37 standard.
  • 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.


  • 6 year parts, labor & travel limited warranty.
Contact your Sales Rep for Fleet Pricing
40547 Fortress 20kW 1018 $6,999.00
Plus freight!

All prices, descriptions, and specifications subject to change without notice. Items may not be exactly as illustrated.


Running Watts (NG)*18,000
Engine SeriesVanguard™
OperationFully Automatic
Running Amps (LP)83.3
Alternator TypeComputer Friendly
NG Fuel Consumption**50% Load = 187 ft3 /hr
Battery/Battery ChargerYes
Diagnostic Alerts with Remote System StatusLow Oil Shutdown, Engine Does Not Start, Low Frequency, Engine Overspeed, Low Voltage, Low Battery Voltage, Oil Temp High, Transfer Switch Fault
Width (in)34
Weight (lbs)500
Running Watts (LP)*20,000
Engine BrandBriggs & Stratton
Engine Displacement (cc)993
Voltage (V)120/240V AC, Single Phase, 1.0 pf
Running Amps (NG)75
LP Fuel Consumption**50% Load = 2.31 gal/hr
Weekly ExerciserYes
Overcrank ProtectionYes
Length (in)48
Height (in)31
*NG = Natural Gas; LP = Liquid Propane.
**Fuel consumption rates are estimated based on normal operating conditions at 1/2 load. Generator operation may be greatly affected by elevation and the cycling operation of multiple electrical appliances - fuel flow rates may vary depending on these factors.

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