20 kW1 Fortress Standby Generator System

Back-up power for medium to large sized homes

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.

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.

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" from your home. Our generators are in compliance 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. Complete our web form below or visit the Customer Support portal to get your questions answered.

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.