Stinson Beach, FL – A Petaluma man who was burned in a propane gas explosion while installing a gas line for a water heater at a Stinson Beach residence is in stable

condition Wednesday afternoon, a spokeswoman at the Bothin Burn Center of San Francisco’s St. Francis Memorial Hospital said.

Irwin Welkis, 67, was working in the basement of the home at 3265 Shoreline Highway when the explosion occurred around 3 p.m. Monday.

Stinson Beach Fire Department Chief Kenny Stevens said Welkis is an employee of Coastal Plumbing & Heating in Petaluma. Welkis suffered burns on his

face, arms and hands.

He was first taken to Marin General then to the San Francisco hospital, Stevens said.

Firefighters controlled the fire after the explosion by 5 p.m., Stevens said. The blaze destroyed the single-family wood frame structure, Stevens said.

The residents of the home, Joe and Ellie Droshin, said they heard what sounded like a click from thermostat before the explosion. The blast blew

out one wall of the residence, Stevens said. The Droshins were not injured.

The cause of the explosion is under investigation, Stevens said. Twenty-three firefighters from Stinson Beach, Muir Beach, Southern Marin Fire Protection District and the Marin County Fire Department responded, Stevens said.

The National Park Service, Marin County Sheriff’s Office and the California Highway Patrol were also at the scene.