i am getting ready to start building/modifying my cooker. it is a 45 gallon 1/4 inch tank. i have used feldons calculator to come up with all my figures. it will be a reverse flow with a baffle plate. it will have a vertical chamber directly above the fire box! my design will be to have heat/smoke go under baffle plate then a 4 inch hole just above the baffle plate allowing the vertical to be used at the same time. the smoke stack will be on the top side of the vertical. there will also be a shut off to the baffle plate and a threaded pipe 5 inch will be welded in between the fire box and the vertical to allow use of just the vertical for smaller cooks so i don't have to waste fuel in heating up the big chamber for no reason! my question is can i use a guru to heat the fire box and control my inside temps? my bbq partner doesn't think we can seal the tank enough to use one however i dont see it as a issue! we will buy seals and are using pull to latch adjustable levers on all doors and lids.
thanks in advance!!!