I bought a "boxwood " stove today for the garage / workshop. What kind of pipe do I need? Menards sells a 6" black pipe and some 3" "pellet" pipe that is about 6 the cost. what size pipe do I need? heres what I got: http://www.vogelzang.com/bx26e.htm I loked at tyhe site, I need 6 inch pipe, I think, but what kind? nd where do I buy it?