Profile: ProTech Systems, Inc. is engaged in providing machining and repairing services. We develop Ventinox® Chimney Lining System. Our Ventinox® liners feature a unique continuous-weld construction and creating a one-piece seamless flue. We produce FasNSeal® vent system, which feature a built-in gasket and locking band in each vent length and component. Our FasNSeal®W2 is ideally suited for exhausting high efficiency, natural gas or propane fired heating equipments.