Turbulators are many long insert's that are placed into the exhaust heat exchanger.
Something about dramatically increasing surface area etc...The increase in heat output was most noticable dual wanding.
P.S. I didn't name the thing's just installed them.
I don't know if they are made for other machines, but they could be (they are very simple), and I was just passing the other info on FYI as it is a strange name.