The fire spread from the garage to the attic of a two-story home in the 3800 block of South Timber Street at about 8 p.m. Tuesday, Orange County Fire Authority Capt. Steve Concialdi said.
The men, a 23-year-old and a 35-year-old, rolled the truck onto the driveway, but the fire spread, Concialdi said. The 23-year-old man tried to douse the fire with a garden hose and suffered burns to his arms; the 35-year-old man suffered burns to one arm. They were taken to the Orange County Burn Center at Western Medical Center-Santa Ana, he said.
A child and her grandmother who were inside the home suffered smoke inhalation and were taken to hospitals.
When firefighters arrived, the flames were spreading from the garage into the attic. About 35 firefighters brought the blaze under control within a half-hour, keeping it from spreading into the rest of the home, Concialdi said.
Eight adults, six children and two dogs were displaced.
The fire caused $75,000 in damage.