"It is really destroyed," said Unified Fire Authority Capt. Michael Greensides.
At about noon a report of a fire came from the area of the Cliff Lodge at Snowbird, according to Greensides.
The family of four rented the newer model motor home from Memphis, Tenn., and drove to Snowbird to stay at the lodge. When the husband got out to check into their room he heard a "hissing sound" and several pops, Greensides said. He went to the back of the RV to check when he saw a large flame flash in front of him.
"Apparently [the propane tank] caught fire and flashed," Greensides said. The accident is under investigation.
A UFA station captain at a nearby station heard the explosion and "saw the man laying on the ground with burns on his body and the motor home on fire," Greensides said.
The man, in his 30s, sustained second-degree burns to the lower half of his body and was transported by helicopter to University Hospital.
It took crews about 20 minutes to put out the fire. All that was left was a charcoal metal frame.
"It could have been a lot worse," Greensides said.
The man's wife, also in her 30s, and her two children were able to escape just in time. "When they got out there were flames coming from underneath," Greensides said.
The accident is a reminder, Greensides said, to make sure there aren't any leaks on your motor home and make sure you have something nearby to extinguish the flames.