Category 3 Venting System

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.

Category 3 venting system.

Category iii refers to positive vent pressure which is created by exhaust blowers in unit heaters. Our nbsp saf t vent reg nbsp line of products are perfect for your commercial and industrial needs. Z vent is now manufactured utilizing a fail safe gasket connection. Time tested installations throughout north america and globally.

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. In short it is a us standard for gas venting systems required in category iii applications. Boilers water heaters and furnaces. 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.

Heatfab nbsp is the leading manufacturer of high quality venting systems for special gas vent applications specified by oems for nbsp over 20 years. Z vent is manufactured using al29 4c advanced ferritic stainless steel with unmatched corrosion resistance for use with condensing furnaces and boilers. Zflex cat 3 stainless flue pipe 4 inch. Ansi category i ii ii and iv appliances.