An Oregon man was sentenced to 18 months in prison for causing a marijuana-extract explosion that damaged a Medford garage and imperiled his sleeping daughter.

Troy Allen Wyatt, 44, and his three children wept as U.S. District Judge Michael McShane delivered his ruling in federal court on Thursday, the Medford Mail Tribune reported.

Wyatt, who now lives in Brookings, pleaded guilty in June to felony counts of endangering human life and manufacturing hash oil — a marijuana concentrate far more potent than smoking a joint.

A portable heater triggered the blast in January 2016 as Wyatt attempted to make the amber-hued goo in his garage by using propane to extract tetrahydrocannabinol, or THC, from a stash of marijuana, court records show.

The fiery explosion caused more than $12,000 in damage, according to records. Wyatt's daughter, then 13, was sleeping in the bedroom closest to the garage when it blew up. She was not injured, though her father suffered minor burns.

"I don't want to minimize what I did," Wyatt said in Medford's U.S. District Court on Thursday, according to the Mail Tribune. "What I did was wrong, and I admit it."

Though recreational marijuana sales have been legal in Oregon since 2015, illicit labs have proliferated as the marijuana supply has increased in the era of legalization.

Police in Oregon last year investigated at least 25 illegal hash oil labs statewide, far eclipsing the number of methamphetamine labs reported by police. Since January, police have identified at least 19 illegal labs, seven of them involving explosions.

In July, a hash oil explosion at home in North Portland killed two people.

-- Shane Dixon Kavanaugh

skavanaugh@oregonian.com

503-294-7632 II @shanedkavanaugh