Centrotherm icrt3539 Innoflue Concentric Roof Termination 3 or 5 Inches Polypropylene

Product Description

The Centrotherm ICRT3539 is a concentric roof termination designed for use with the InnoFlue venting system. It serves a dual function by combining flue gas exhaust and combustion air intake into a single roof penetration. This design reduces the number of roof penetrations required during installation, which saves time and helps maintain the integrity of the roofline. The ICRT3539 is manufactured from polypropylene, a material well suited for the corrosive condensate and exhaust gases produced by high-efficiency condensing appliances. Polypropylene venting is a common choice among HVAC technicians working with condensing boilers, condensing furnaces, and water heaters that require Category IV or Category II venting. The black color finish allows the termination to blend with a wide range of roofing materials and aesthetics. This roof termination is compatible with 3 inch and 5 inch vent sizes, giving installers flexibility across different appliance configurations and venting layouts. It is designed for use with InnoFlue concentric vent systems and can also be adapted for use with InnoFlue SW systems by adding an ICTC adaptor, sold separately. The concentric design routes combustion air in through the outer pipe while flue gases exhaust through the inner pipe, keeping the two air streams fully separated for safe and efficient operation. This type of termination is required on installations where direct vent appliances pull combustion air directly from the outdoors rather than from the conditioned space. HVAC professionals, mechanical contractors, and plumbers working on high-efficiency heating system installations will find this termination a straightforward and reliable component for completing compliant rooftop venting assemblies. Domestically sourced, the ICRT3539 meets the quality standards expected for residential and light commercial venting applications.

• Combines flue gas exhaust and combustion air intake into one concentric roof penetration
• Compatible with 3 inch and 5 inch InnoFlue concentric vent systems; adaptable for InnoFlue SW with ICTC adaptor
• Polypropylene construction resists corrosive condensate and acidic flue gases from high-efficiency condensing appliances

Product Highlights

The Centrotherm ICRT3539 concentric roof termination provides a single-point rooftop solution for both combustion air intake and flue gas exhaust, streamlining installation on high-efficiency heating systems using 3 or 5 inch InnoFlue concentric venting.

Product Information

Standard Information

• Brand: CENTROTHERM
• Manufacturer Part Number: icrt3539

Technical Specifications

• Material: Polypropylene
• Vent Size: 3 or 5 inches
• Color: Black
• Domestic or Import: Domestic