Configurable animal house ceiling vent

A ceiling vent assembly for use in a ceiling of an animal house, the ceiling vent assembly comprising:

• a pair of control rods;
• a ceiling vent comprising a pair of opposed end panels and a pair of opposed side panels, which, in combination, define a frame that is open at its top and bottom, the frame receiving a first louver and a second louver, each louver being pivotally mounted in the frame so as to be movable between an open position in which the louver passes airflow through the ceiling vent and a closed position in which the louver blocks the airflow from passing through the ceiling vent, the end panels each having a plurality of rod openings with one of the rod openings from each of the end panels being aligned such that the rod openings form a plurality of aligned pairs of rod openings;
• a first cable attached to the first louver;
• a second cable attached to the second louver;
• and
• a pulley assembly comprising first and second vertical pulleys and a center pulley block having at least one horizontal pulley, the at least one horizontal pulley having a first cable guide and a second cable guide with the first cable guide being offset vertically with respect to the second cable guide, wherein the pulley block has a plurality of rod openings, with each one of the plurality of rod openings in the pulley block being aligned with one of the aligned pairs of rod openings in the end panels, such that one of the control rods passes through one set of aligned rod openings in the end panels and pulley block and the other one of the control rods passes through another set of aligned rod openings in the end panels and pulley block, and wherein the pulley block has at least one cable routing hole adjacent to each one of the first and second cable guides;
• wherein the first cable is routed from the first louver, around the first vertical pulley, around one of the cable guides and then to one of the control rods, and the second cable is routed from the second louver, around the second vertical pulley, around the other one of the cable guides and then to one of the control rods such that the cables can be selectively routed so that the first and second louvers can be controlled by either one of the two control rods depending on which control rod the respective cable is attached.