Z-FLEX®, part of the Novaflex Group of companies, is the leading manufacturer of specialty venting systems for furnaces, boilers, water heaters, oil heaters, fireplaces, and more. Z-FLEX® has been providing flexible answers to gas, oil, pellet and wood venting applications for over 45 years. A variety of innovations in materials and construction have led to products that deliver superior performance, increased efficiency, easier handling, simpler installation, greater reliability and increased service life.