Heater Box - Flap
This is the flap for the inside of the heater box. It is made from thick, 19-gauge steel, with the correct size 3/16" rod firmly welded to the flap.
This flap is the Series 1 style, but it works the same in Series 2 heaters as well, which have a bolt-together flap of the same dimensions (they just did that to reduce assembly costs...)
Delivered in fresh, bare steel coated in a light oil for rust-prevention, simply wipe down with solvent before priming.