The natural gas explosion destroyed a home at 2550 W. Chestnut St., at its intersection with Brown Avenue, on Thursday afternoon.
During a surprise inspection on Friday, the fire marshal found several electrical and fire hazards.
A fire marshal says Norman Bennett started the fire after an argument with the home's residents on Thursday afternoon.
A man in Mountain Grove found a way to save money and reduce his carbon footprint. His fellow travelers, however, consider him a pain in the rear.