Fire crews were called to the "World's Largest Stove" at the Michigan State Fairgrounds on Saturday night after storms moved through the area.
"It's multigenerational. Objects like that help bind history."
A lightning strike may be to blame for the blaze, said Michael Herron, a Detroit Fire Department senior chief. Herron said reports indicate that "natural causes" were to blame for the fire.
The 15-ton replica was built by the Michigan Stove Co. Painted to look like metal, the stove stood on a platform at the exposition over an exhibit of regular stoves. It formerly was located near Belle Isle, an island park in the Detroit River.
The stove was later restored and moved to the fairgrounds.
It's unclear whether the stove would be rebuilt. The Michigan State Fair was shut down in 2009 by state funding cuts.