Yes, a transfer switch safely and securely transfers energy in the generator to property wiring and is necessary in order to avoid backfeed pitfalls. It won't get the job done if your property is linked to a town or town grid and employs electricity only all through a power outage. https://what-size-generator-do-i76431.blogprodesign.com/48897638/not-known-details-about-what-size-generator-do-i-need-for-2000-square-feet