How can I clean black spots on fireplace bricks?

Karen
by Karen

When we moved into our house it has a working fireplace but someone had let a fire get out of hand and has burned black spots on the outside of the firebox area. It doesn't come off on my hand when I touch it. I have tried household cleaners, I have tried steel brushes but I have not done much more than lighten it a little. Any suggestions for how to clean the wood-burning fireplace of its black spots?


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