If I am going to ceramic coat headers then why build them out of 304 stainless anyway at additional expense, then coat them?
Build them out of steel tube, then coat them.
The heat transfer for me is not any kind of an issue at all.
However I look at it. My $800 Hall headers are 4 times better than anyone elses $3,200 set, no matter what they are made out of.
They are just headers.
On the term "better", you reminded me of an "estimate" that I did for replacement windows for an "engineer". You probably know him Kelly?
He was pricing my wood "Andersen" windows vs vinyl replacement windows.
He got annoyed with me because I represented the Andersen's as "much BETTER". He snapped at me, "if we bury both in the ground, which will last longer?", and demanded an answer.
My answer was, "first of all, neither is going to get buried on this job, secondly, the vinyl are so poorly constructed, they will never last long enough to rot".
So it really depends on the application of the term "better".
We might also need to get into defining the term, yes or no, up or down, and pretty and ugly as well?
Remember the immortal works of Fred Sanford that "beauty is only skin deep...but ugly is all the way to the bone!"
