Did a couple searches, and not much came up. Just a wondering here............Is there a maximum length for an OAK??? Or if you go past "X" length, should you increase the diameter of the OAK and neck it down close to the stove???? The destructions for my stove don't say. What say y'all??
I have a 3 ft flex section, connected to a 7 ft vertical rigid pipe, then almost 2.5 ft of horizontal and it is fine. All of it is 3". What size is your OAK and how long of a run are you looking at?