Category 3 Gas Vent Pipe

Z vent was developed in the early 1980s and has thousands of field installations to date.

Category 3 gas vent pipe.

Kits in this category include those designed for natural draft appliances using gas oil or wood. In a category iii venting system if there is a. Use standard venting masonry or type b vent. Zflex cat 3 stainless flue pipe 4 inch.

Heatfab nbsp is the leading manufacturer of high quality venting systems for special gas vent applications specified by oems for nbsp over 20 years. New fusion welded piper seams for a smoother finish and. Z vent is approved as a replacement for high temperature plastic vent. Our nbsp saf t vent reg nbsp line of products are perfect for your commercial and industrial needs.

Boilers water heaters and furnaces. Category iii combustion efficiency 83 or less use only pressurizable vent as specified by manufacturer. Made of al 294c stainless steel. Simple gasket connections no sealant needed.

Category iii piping systems operate with positive vent pressure and are sealed by the high temperature seals and locking devices built into the category iii approved vent pipe. Category iii piping systems cannot be joined with category i gravity vented piping systems. Ameri vent chimney liner kits are designed to allow you to easily line masonry chimneys. Oem specified and ul listed special gas vent for category ii iii and iv heating equipment.

In short it is a us standard for gas venting systems required in category iii applications. Gas vent pipes special gas vent for category ii iii iv heating equipment z vent is designed for use with tankless water heaters standard water heaters both residential and commercial applications and boilers as well as high efficiency furnaces and pool heaters. Time tested installations throughout north america and globally. Z vent is now manufactured utilizing a fail safe gasket connection.

Z vent is manufactured using al29 4c advanced ferritic stainless steel with unmatched corrosion resistance for use with condensing furnaces and boilers. Ansi category i ii ii and iv appliances. Compatible with all types of z vent and z flex. Category ii combustion efficiency over 83 use only special condensing service vent as specified by manufacturer.

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. Category iii refers to positive vent pressure which is created by exhaust blowers in unit heaters. Category iii is defined as a gas heating appliance with a flue loss equal or greater than 17 non condensing with a positive vent static pressure.