Originally Posted by froggyshooter
that sounds a lot like what I do although getting to stabilize at one temp is difficult. You don't think the exhaust then is any issue?
In all honesty I don't know. What I can say is, based on lots of time watching smoke come out of my exhaust (staring at exhaust stacks when cooking is a good thing to do IMO), I don't think I'd want less than 2" for exhaust.
As far as getting it to stabilize - are you allowing time for the temp to settle in? Some folks fiddle a lot and that can lead to fluctuating temps.
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