What Is A Concentric Vent System

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What is a concentric vent system.

Concentric vents make it easier to have a two pipe installation for high efficiency furnaces. Leaving the intake inside the roof in attic as john ask can lead to problems. These vents simplify installation and only require one hole through the wall or roof where the pipes terminate. A concentric diffuser system is designed to eliminate the need for traditional duct work by providing a single air diffuser to supply return air to each rooftop.

This is an alternative to the standard two pipe intake vent shown in the basic furnace installation instructions. A concentric vent runs both intake and exhaust thru a double wall pipe to the outside of the home either thru the roof or sidewall. A concentric diffuser provides conditioned air from a hvac rooftop unit to a space while returning air back to the rooftop unit through the same diffuser. O the safe operation of the vent system is based on the use of parts supplied in this kit or approved per the guidelines that follow in the instructions.

This is an alternative to the standard two pipe. The concentric vent allows both the intake for combustion air and the exhaust vent to pass through a standard roof or sidewall. And check us out at.