ANGWIN – A malfunctioning electrical device in a portable sauna machine is believed to have caused an early morning home fire in an unincorporated area of Napa County.

Napa County Fire Marshal Pete Muñoa reported that the fire was reported at 3:30 a.m. Monday at 445 Sky Oaks in Angwin.

Units and firefighters from Angwin and Pope Valley from the Napa County Fire Department and Cal Fire responded to the incident, which Muñoa said caused moderate damage to the second story family room.

He said smoke detectors were not installed in the home.

Three family members safely evacuated the residence while the tenant from the first floor used a garden hose to knock down the fire, Muñoa said.

The fire was reported extinguished at 4:14 a.m., but units remained at scene until 9 a.m. Muñoa said no injuries were reported.

He reported than an investigator from the Napa County Fire Marshal’s Office has been assigned to the incident.

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