NEVADA CITY (CBS13) – A man who claims he had to save his baby and fiancée during an explosion at their home has now been arrested.

“I have no doubt that there is a butane honey oil lab inside the residence,” said Sgt. Justin Martin of the Nevada County Sheriff’s Office.

As firefighters worked to put out hotspots at the home on Rocker Road that went up in flames Saturday afternoon, you can see what used to be the kitchen.

It’s where David Schwab had told us he and his fiancée were with their baby girl when the refrigerator door suddenly blew off.

“Yes, it blew off solidly. Like, I’ve never seen anything like that before,” Schwab said.

He says he raced to get his family out.

“Thank God my baby wasn’t walking around the kitchen because she usually walks right by the refrigerator,” Schwab said.

Authorities say the woman and baby suffered minor injuries and are out of the hospital.

But the family’s problems don’t end there. Narcotics investigators will be at the scene all night. They think someone may have been chemically extracting THC from marijuana using butane and that could have led to the blast.

“This isn’t an uncommon thing. We get a lot of these structure fires. A lot of these labs will blow up and all it takes is the slightest spark,” Sgt. Martin said.

Before he was detained, Schwab told us his daughter is his number one priority.

“Tomorrow’s her birthday so I don’t know. It’s hard to put the pieces back together,” Schwab said.

But now, things are much more serious.

Schwab and another man are facing charges of manufacturing a controlled substance and felony child endangerment. More charges could be coming, since authorities say a dog died in this fire.

Neighbors also say that about 15 years ago, authorities were out at the same home to investigate a meth lab.