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So gravity is enough? Is there no air leakage between the RC and furnace? Does anyone see a problem with the furnace section being 8" as opposed to 6"?

Chad,

Do you have any pics of your roaster posted I would be curious to see different ideas. I am just about to start building a roaster. Basically plan to copy Rob's ideas, but would love to see any variations that might be easier or better.

Thanks,

Ryan