I found a story in the Feb. / Mar. 2012 edition of Backyard Poultry where Dianne Lansing of New York has a stove pipe in her coop. The theory behind this is that cool, moist, air is warmed as it rises and creates an updraft up the pipe to the outside. She states that her coop stays dry and odor free. She also uses the DLM. Her father was a county ag. agent with a special intrest in barn ventilation. I was wondering if anyone else has tried this? Is it the stove pipe or a combination of the pipe DLM? Just curious. P.S. The pipe is stationed about 1 ft. off of the floor and exits the coop near the ceiling.