4" PVC vented cap
thingiverse
Female Vented Cap for New Style Furnace Flue. Experienced problems with birds attempting to construct nests in my furnace flue. Discovered a solution by utilizing this cap, which simply presses on without the need for glue. My furnace flue features two 4-inch PVC pipes situated outside near the ground, one terminating with a male connection and the other with a female connection. Upcoming Post: Male Vented Cap Printed at a .2 layer height and 10% fill rate. No raft or support was necessary during printing, as any setting within reason would suffice. A few of the vent boxes protrude into the sidewall of the pipe connection. This design choice allowed for maximum ventilation by minimizing air flow restrictions. Design Process: Employed 123D Design to create this female vented cap.
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