On Sun, 28 Oct 2012 07:38:57 -0400, "dadiOH"
wrote:

DerbyDad03 wrote:
Question 2: I've seen some opinions that a rock plate is better for
heat distribution than heat shields. That makes sense. However, I
assume I will need a grate to hold the rock plate. A quick search
showed some galvanized steel rock grates. Can I expect these to rust
out just like the heat shields? Buying a rock grate and a rock plate
is going to be more expensive than the heat shields, but if they work
better and last longer, I wouldn't mind spending the extra money.

"Galvanized" means the steel has either been electroplated with zinc or
(better) dipped in molten zinc. The zinc prevents the steel form oxidizing
(rusting). You can easily melt zinc on a kitchen stove so I would expect it
to rapidly disappear on your grill leaving plain old steel. Steel rusts.

Not to mention that breathing in the fumes from the galvanized is bad
for you too. I'm surprised they would sell galvanized for a grill.