I just bought a Blue Vermont Castings Defiant Encore. It has a 8 " chimney .... I am going to put it in my house and dont know.... All the stories of puffing griddles, reducing to 6" ... I want to know if i put the right 8" chimney and dont like the stove, can I buy a 6" type chimney stove and hook it up to the 1800 dollar 8" chimney.... I dont want to buy two chimineys....... Its going to be a free standing corner set up going through two floors and a roof.