I recently purchased a 1988-1990 seefire 900s off marketplace. Growing up we heated with wood but I’m new to it as an adult. I’m having trouble finding information on how the pipe (6inch) connects to the top of the stove. Does it use an adapter? Or should the pipe fit directly into the top? Do you seal it? Manufacture calls for Dura vent. Safe to swap with super vent? Unfortunately I’m short on cash at the moment and dura vent is $$$$.