I really need to get my sled weight down a bit more. I am thinking of using Ti foil to replace the thick and heavy steel flue on my wood stove. Flue pipe is only 70mm in diametre so a circumference of ~220mm. How much overlap do you need to have a good draw on a rolled pipe?
There being a substantial difference in cost between the10" the 12" and the 16" foils from Titanium Goat
Being 70mm means unfortunately not being able to use TiGoat fittings