oval shape hvac duct installation Better airflow than rectangular: While not as efficient as perfectly round ducts, oval ducts still offer smoother airflow than rectangular duct's sharp corners. Richard Trethewey is in the basement where the ductwork is being connected and installed by HVAC contractor Obie Rosa and
Flat Oval Duct Langdon, Inc. 9865 Wayne Avenue • Cincinnati, Ohio 45215 513-733-5955 You should be able to push about 100cfm through a 6" oval duct with minimal fittings on boost, but I would keep the velocity less than that on To optimize the clearance in mine roadways and reduce operation costs, new oval ducts can be used in auxiliary ventilation systems instead of conventional
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