TWIN-PL
Pressure-tight concentric connection line
The concentric, pressure-tight flue pipe TWIN-PL, featuring a plastic inner pipe and galvanized outer pipe, is designed for indoor use only. It is typically used as a connection line from an air-independent combustion appliance to the chimney, but can also be utilized when the appliance serves as a roof heating center. Depending on the chosen diameter, the system is pressure-tight up to 200 Pa or even up to 5000 Pa.
This pipe-in-pipe system utilizes the annular space between the flue gas-carrying inner pipe and the outer shell for controlled air supply and is compatible with the TWIN-P, EW-PPS, and EW-PP-FLEX systems.
