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i wouldnt use that, i have used it, and its a very big VERY HOT and grossly inefficient on fuel, just way overkill. you will have a VERY hard time smoking most stuff which is around 90-130 degrees, that will push 500 + easily and fast, on low i fought to get under 200. i have a much better idea for you $30, and its got 3 separate burners for different heat ranges not just high to low its in the smoker budget build thread.
I haven't made a decision on the heat source yet.