Dylan Van Iwaarden was placed in a medically-induced coma, spent 114 days in the burn unit and underwent 17 surgeries after he suffered burns to over 65% of his body.
He is set to undergo rehabilitation at the University of California Irvine Medical Center.
A crew of eight, including Van Iwaarden, was setting backfires to burn up fuel and create a buffer against the advancing flames when a second fire ignited below them. The crew was overrun and had no time to deploy portable fire shelters.
A Fire Authority investigation concluded that the crew shouldn't have been in the area because of dangerous conditions.
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The Silverado Fire erupted the morning of Oct. 26 in the area of Santiago Canyon and Silverado Canyon roads in the Santa Ana Mountains.
At its height, about 70,000 people were under evacuation orders in Irvine and another 9,500 evacuated in Lake Forest, according to the OCFA and Lake Forest officials.
No structures were confirmed lost, according to officials.
The cause of the fire remains under investigation.
The Associated Press contributed to this story.