In a category iii venting system if there is a.
Category 3 gas vent pipe.
Category iii combustion efficiency 83 or less use only pressurizable vent as specified by manufacturer.
Category iii piping systems cannot be joined with category i gravity vented piping systems.
Category iii refers to positive vent pressure which is created by exhaust blowers in unit heaters.
Ansi category i ii ii and iv appliances.
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.
Ameri vent chimney liner kits are designed to allow you to easily line masonry chimneys.
Z vent is approved as a replacement for high temperature plastic vent.
As well as those suitable for category i gas fired appliances with b vent or appliances with a draft hood.
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.
Compatible with all types of z vent and z flex.
Our nbsp saf t vent reg nbsp line of products are perfect for your commercial and industrial needs.
Heatfab nbsp is the leading manufacturer of high quality venting systems for special gas vent applications specified by oems for nbsp over 20 years.
Kits in this category include those designed for natural draft appliances using gas oil or wood.
Z vent is now manufactured utilizing a fail safe gasket connection.
Made of al 294c stainless steel.
High quality category iii stainless steel exhaust piping.
Category iv combustion efficiency over 87.
Zflex cat 3 stainless flue pipe 4 inch.
In short it is a us standard for gas venting systems required in category iii applications.
Category ii combustion efficiency over 83 use only special condensing service vent as specified by manufacturer.
Simple gasket connections no sealant needed.
Z vent is manufactured using al29 4c advanced ferritic stainless steel with unmatched corrosion resistance for use with condensing furnaces and boilers.
Z vent was developed in the early 1980s and has thousands of field installations to date.
Oem specified and ul listed special gas vent for category ii iii and iv heating equipment.
New fusion welded piper seams for a smoother finish and.
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.
Use standard venting masonry or type b vent.
