Neighbors say Erik Johnson was working on his Centennial home when it exploded, flattening the structure.
Authorities have not identified the victim whose body was found inside the debris early yesterday morning.
Don Wright, a neighbor, said the explosion threw him out of his bed.
The 34-year-old Johnson had been remodeling the home, and often stopped by in the evening to work on it.
The cause of the fire was under investigation.
Fire spokesman Andy Lyon said there were containers of kerosene near the home.