hello everyone I just bought a house last year it has a older buck stove 26000 I used it last winter helped a ton so I found another one at a yard sale for $150 so I grabbed it but it doesn't have the stack on top so I need to buy that after that what kind of pipe can I use to connect to that and run out my garage roof is the double wall stainless pipe at menards ok A Fires Place told me I could use that because it was too old of a stove I don't want to burn anything down thanks for any help.