20kW Briggs & Stratton Fortress Aluminum Standby Generator

Briggs & Stratton 20kW Fortress Aluminum standby generator

UL Listed StandBy Generators

Briggs & Stratton Dealer exclusive line with these great features:

  • The industry’s longest parts, labor and travel limited warranty – 10 years!
  • Installed oil warmer for increased starting protection in colder weather

Unique Airflow Technology

  • Making these models 50% quieter than most portable generators
  • The unique design pushes engine exhaust out the front, directly away from your home

Flexible Placement – Approved for installation as close as 18″ to a building2

Symphony® II Power Management System

  • Customizable to your home’s needs
  • Automatically balances the power of your home’s electrical load including high wattage items like air conditioning units and electric ovens
  • Offers whole house power with a more affordable home generator

Commercial-Grade Briggs & Stratton Vanguard™ Engine

  • Powerful V-Twin OHV engine
  • Easy conversion between natural gas (NG) and liquid propane gas (LP) during installation

Quality Clean Power

  • Ensures your electronics are safely powered

Corrosion Resistant Enclosure & Base

  • Made with automotive grade galvanneal steel to resist rust
  • Powder-coated paint for years of protection against chips and abrasions


Briggs & Stratton Fortress Aluminum 20kw Standby Generator Specs


¹ This generator is rated in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards Association) standard C22.2 No. 100-04 (motors and generators).
2 The installation manual contains specific instructions related to generator placement in addition to NFPA 37, including the requirement that carbon monoxide detectors be installed and maintained in your home.
3 Warranty details available at www.briggsandstratton.com



Briggs & Stratton Fortress 20kw Generator Engine Specs

Briggs & Stratton Fortress 20kw Generator Operation

1 Fuel consumption rates are estimated based on normal operating conditions. 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.


Briggs & Stratton 20kw Generator- Additional informationDownload a Briggs & Stratton 20kW Fortress Generator Fact Sheet