I watched this movie which may be from the late 80's or early 90's. I know the beginning of the movie involves a guy getting burned alive in a suit which he later uses to defeat the final bad guy.

It's not Darkman. Trust me. I know this. He later finds a use for the suit and at the end of the movie it is placed in a museum where the damsel explains to her daughter that the man that wore that suit was a hero.

Please tell me you know the name to of the movie?

Sounds like The Vindicator from 1986--with Pam Grier!