exhaust? Is it possible? Lit the UDS with a weed burner. Had all three of the .750" intakes opened. Temperature would,not get over 250* when I put the lid on. I have a pair of 2" exhaust on it...both about 30" Long. Even with one of them shut down it would not get warm. Charcoal basket had a mix of about 75% chunk 25* KBB.