I haven't purchased as pellet stove yet, I am still in the process of researching what to buy. I am replacing an old Vermont Castings Wood Stove with a new pellet stove. last year I just replaced my brick chimney with a new Metalbestos chimney. The store I was in told me I need to take the new chimney down in order to use a pellet stove. It will only work by venting it outside with no chimney. Is this correct?