Where is it best to locate the secondary air intake, on any rocket stove.
Like halfway down the burn chamber, or way down the burn chamber etc.
I have a simple " Propane tank " build, 4" heavy steel tube for burn chamber and riser,
riser insulated with rock wool ( I had some left over ) alll made from old junk I had laying around.
Currently no secondary air, but think I should add it. where is best location.