Am I wrong by simply vacuuming the stove and taking the black pipe length outside and flushing it? As I look up into the SS DuraVent, it's clean and solid looking after 26 years of use. On my 3rd cap though, which I expect. I did replace the black pipe once. Not very expensive. It has surface rust inside, I figure that's unavoidable.
My Efel never rusted, nor my 5 year old Kodiak. No smoke on start up from using ATF, drain oil or other lubes. ALTHOUGH, maybe bacon drippings would work well and smell great next year?
I'm not diminishing those who find it necessary to use a protective coating. I'm just saying that my minimal effort hasn't hurt yet.
It's kind of my 'Stabil' theory-Why spend $5.00 for Stabil when my mower starts and runs the following season on the same gas left in in fall?
Don't yell too loudly at me...