Smoke stack mod to possibly run out garage window

[Raajr81]

can anyone point me in the direction of modifying my stack on my pitboss 700 fb to extend and run out a window to smoke in my garage. Just looking into if it can be done and if so whats the beat materials to use. Thanks in advance

 

[martin1950]

I don't worry about it. My garage is 35 paces out the back door which makes it a long trip when it -27*F during the winter. I just leave a passage door and a window open a smig for a little cross ventilation, love the residual smell of smoke.