I bought the stove from a friend and after bringing it inside my house I noticed that the bottom plate has a crack from the front left leg all the way back.you have to look closely to notice it.can anyone tell me if its safe to burn.my friend being a chimney guy did patch it with some special cement or something.this is obviously all new to me.does anybody knows where I might be able to get parts for it,specially the plate in question.thank you all