A concentric flue system provides a very compact room sealed flue, where the air supply and flue gases are managed within a one-piece concentric duct system. Typically using a duct within a duct, flue gases are expelled through the inner duct with combustion air being drawn in via the outer annulus.

How does a concentric flue work?

A concentric flue system provides a very compact room sealed flue, where the air supply and flue gases are managed within a one-piece concentric duct system. Typically using a duct within a duct, flue gases are expelled through the inner duct with combustion air being drawn in via the outer annulus.

What is a concentric pipe?

A concentric reducer is used to join pipe sections or tube sections on the same axis. The concentric reducer is cone-shaped, and is used when there is a shift in diameter between pipes. For example, when a 1″ pipe transitions into a 3/4″ pipe and the top or bottom of the pipe doesn’t need to remain level.