Established in 1985, ProTech Systems produces gas vents for residential, commercial and industrial uses. It manufactures stainless steel liners for chimneys. The company offers Ventinox chimney lining and FasNSeal vent systems and TherMix, which is a masonry insulation product. ProTech Systems also provides ProFoil, which is a flexible aluminum foil-faced ceramic fiber blanket that wraps around and insulates the liner. The company offers products through sale executives and wholesale distributors throughout the United States and Canada. It is a division of Simpson Dura-Vent, which designs and creates venting systems for gas and wood-burning appliances. ProTech Systems is located in Albany, N.Y.