Double Wall Sheet Metal Duct. Our standard double wall duct and fittings have galvanized sheet metal outer walls and a layer of fiberglass insulation surrounding the inner liner. Double wall rectangular ducts utilize the same outer metal shell and insulation media as our internally lined rectangular ducts but have an additional metal inner shell between the insulation and the airstream. In 1960 ecco started in a garage with two entrepreneurs who believed they could produce better quality parts than what was available locally.
Fittings can be fabricated with standing seam elbow lock or welded seam construction. Double wall duct is constructed with an insulation layer between a solid metal outer shell and either a perforated or solid metal inner shell.
This provides some additional characteristic to the duct as well as allowing a few more insulation options.
In 1960 ecco started in a garage with two entrepreneurs who believed they could produce better quality parts than what was available locally. Duct direct is a manufacturer of hvac sheet metal products including round oval rectangular double wall round double wall oval double wall rectangular round gasket fittings and many hvac stock items. Fittings can be fabricated with standing seam elbow lock or welded seam construction. Conklin greenville sc 200 brozzini court.
