OK,
let's make sure I've got it right:

lamp operates at around 1500W 260V, with the current around 4.2A (steady state)
Transient of 15A at startup.
Thickness 0.000254 meters stainless steel 304,
a length of .012 meters
area of 836e-006 meters squeared. ( is this the cross sectional area, or
the surface area of one side, or what?)

resistivity of 7.2e-007 ohms per meter (is this right?)

So it's not a wire, its a piece of thin (0.254mm) stainless sheet metal 12cm long and how wide?

lamp operates at around 1500W 260V, with the current around 4.2A (steady state)

resistivity of 7.2e-007 ohms per meter (is this right?)

So it's not a wire, its a piece of thin (0.254mm) stainless sheet metal 12cm long and how wide?