Category 3 Venting System

Category iii refers to positive vent pressure which is created by exhaust blowers in unit heaters.

Category 3 venting system.

In short it is a us standard for gas venting systems required in category iii applications. Time tested installations throughout north america and globally. Category iii vent pipe al29 4c for use in boilers tankless water heaters pool heaters and other appliances requiring category iii stainless vent pipe or category 3 vent pipe. Z vent is manufactured using al29 4c advanced ferritic stainless steel with unmatched corrosion resistance for use with condensing furnaces and boilers.

Boilers water heaters and furnaces. Our nbsp saf t vent reg nbsp line of products are perfect for your commercial and industrial needs. Zflex cat 3 stainless flue pipe 4 inch. Ansi category i ii ii and iv appliances.

Z vent was developed in the early 1980s and has thousands of field installations to date. These vent systems must be constructed of al29 4c stainless steel contain gaskets for sealing and have a built in mechanical locking band among other requirements. Z vent is now manufactured utilizing a fail safe gasket connection. Category iii refers to positive vent pressure which is created by exhaust blowers in unit heaters.