question about the Chargriller Duo....

bgaviator said:

Just curious, if I ended up getting the Char-griller Duo, is the side fire box absolutely necessary for smoking, or could I get away with using fire bricks as a barrier like I was going to do with the Weber One-touch? 

Also, I heard the Duo was prone to rusting up fairly quickly....are there any tips for getting it to last longer?  Thanks! 

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