![]() ![]() This approach can be cheaper than framing in space for the ducts and creating openings for air vents. They are hung from the ceiling, in most cases. When there is no room in the ceiling and you don’t want to install ductwork in unheated or uncooled space (outside, in the attic or garage, for example), spiral ducts work well. This is true in commercial settings where an “industrial chic” aesthetic is desired.įunction: Spiral ductwork is attractively made, so that it can be “out in the open” if necessary, as we’ve said. There are two common reasons to use spiral ducts – looks and functionality.Īppearance: In residential settings, spiral ductwork can be attractive when ceiling height is 10 feet or higher and the space has contemporary or urban design. ![]() When the architect or builder wants them to “disappear,” they are often painted to match the ceiling and walls and also makes them blend in so that we just don’t notice them. Warehouses, factories, schools, large churches, movie theaters and athletic venues are a few places where they are often found – but you might have to look for them. Where to Use Spiral DuctworkĪs noted, spiral ducts are most often found in commercial settings. One manufacturer advertises flat oval sizes from 3” x 12” to a whopping 36” diameter x 124” (12-foot) length. Spiral ducts can be round or flat oval and are commonly produced in sizes from 3” to 63” in diameter. It has its seams on the outside, making the inside surface very smooth and having low resistance to airflow. Spiral duct is a rigid spirally wound tube usually made of galvanized steel, but can also be stainless steel, aluminum or copper. In 1956 a manufacturer in Switzerland invented a machine to produce spiral ductwork. Spiral Ductwork in Homes – Residential Use. ![]()
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