In another embodiment, the air is drawn into the intake housing primarily from an area above {TAIL ~ one or both sides} of {HEAD ~ the grain bin extension} 
In another embodiment , the air is drawn into the intake housing primarily from an area above { TAIL ~ one or both sides } of { HEAD ~ the grain bin extension }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD