Heat ducting - 500 degree heat resistance enough?

[Jgordon]

Just posted this thread about the diameter, figured I'd separate the subjects.

Correct Diameter Heat Exchanger Tubing?

I don't like the idea of things in my engine bay catching fire, so I figured I'd ask the question.

Thanks.

[juanbenae]

that product worked for me. from heat exchanger to flapper box, and heater backdate outlets to heat exchangers.

[Jgordon]

Thanks. I'm not backdating the heat (want the auxiliary fan as I do a lot of slow driving in the rain). I know some guys at the local meineke who've done some welding for me, so I'll see what we can weld up in terms of a Y-connector in place of the factory piece.