SpiroFlex turbo two-wall flue pipe 60/100 mm, concentric, 1 m

SpiroFlex turbo two-wall flue pipe 60/100 mm, concentric, 1 m is a concentric flue component designed for sealed combustion systems with forced-draught boilers or furnaces. The 60/100 mm concentric configuration integrates an inner duct for flue gases and an outer duct for combustion air intake, allowing a compact single-pipe run through walls, ceilings or ducts. The 1 m length section is intended for creating horizontal or vertical runs in turbo (fan-assisted) exhaust installations where a balanced air supply and exhaust path is required.

Advantages

The concentric two-wall design ensures separation of combustion air and flue gases in one assembly, reducing installation complexity compared with separate pipes. Its construction supports sealed-system operation and helps maintain correct combustion conditions by providing a dedicated air intake around the exhaust. The unit is suitable for both horizontal and vertical routing, simplifying layout options for turbo boilers and furnaces and enabling a compact, integrated flue run.

Suitable for

• Forced-draught (turbo) boilers and furnaces with concentric flue connection
• Sealed combustion systems requiring combined exhaust and air intake
• Horizontal or vertical wall and ceiling penetrations
• Retrofit and new installations where a compact concentric run is preferred

Key specifications

• Concentric pipe configuration with inner and outer ducts
• Inner diameter: 60 mm for flue gas passage
• Outer diameter: 100 mm for combustion air intake
• Section length: 1 metre
• Designed for turbo (fan-assisted) flue systems and sealed combustion operation

How to use

Select sections and connectors to build the required run length and orientation for your turbo boiler or furnace. Ensure the concentric pipe is oriented so the inner duct aligns with the appliance flue outlet and the outer duct aligns with the air intake path. Follow manufacturer installation clearances and sealing methods for wall or ceiling penetrations and secure joints according to applicable national and local building and gas codes. Verify that the assembled run provides unobstructed airflow for both exhaust and intake.

Usage recommendations

Install only with appliances and components specified for concentric 60/100 systems. Check compatibility with the boiler or furnace manufacturer, observe required clearances, and have the installation inspected or commissioned by a qualified technician to ensure safe sealed-combustion operation.