Danser Inc.

Vacuduct(r) is a high-temperature, ceramic-fiber ductwork insulating sleeve, which is vacuum-formed inside lightweight metal ductwork for industrial heat-producing equipment. Results of company research showed that 100 linear feet (30 m) of Vacuduct slows Btu loss enough to save up to $10,000 a year in natural gas costs compared with castable ductwork at lower material and installation costs.