Hello everyone, I have the Tractor Supply Producer's Pride Defender coop, and from everything Ive been reading on this site, I have determined that the ventilation for this coop is barely adequate. I am considering adding an exhuast fan to the coop so that I dont have to punch too many holes into the exterior to remedy the issue. Do you guys have any recommendations as to which fan to use? It should have a fairly low profile, be quiet (might need to use an external fan speed controller to accomplish this), and be affordable (well under $100 ideally). Has anyone else tried adding forced ventilation to a small coop? I figure I can install a 6-8 inch fan safely above the heads of the roosting area of the chickens without causing draft issues. Is there any reason I should NOT do this? below is a picture of the coop taken from google image search. I want to add the exhaust on the opposite side of the passive vent, above the main entrance to the run, just below the roofline.