Centrotherm isvl023-25 Vent Length 2 Inches Single Wall

Product Description

The CENTROTHERM isvl023-25 is a single-wall polypropylene vent length designed for high-efficiency condensing appliance venting systems. Constructed from UL1738 and ULCS636 listed polypropylene, this 2-inch diameter, 36-inch vent length is rated to handle flue gas temperatures up to 230 degrees F. The long socket design integrates a pre-installed gasket that creates an airtight seal without the use of glues, primers, or solvents. This component is part of the InnoFlue system and is installed by licensed HVAC technicians working on condensing boilers, furnaces, and water heaters that require Category IV venting.

This vent length is suited for residential and light commercial installations where a polypropylene Category IV venting system is required. The 2-inch diameter fits smaller-capacity condensing appliances. The 36-inch section length allows for flexible routing through interior spaces and mechanical rooms. Compatible system installations benefit from the snap-together long socket connection, which simplifies layout and reduces installation time compared to solvent-welded plastic vent pipe systems.

Key Features

• Evaluated to UL1738 and ULCS636 standards by ICC
• Rated for flue gas temperatures up to 230 degrees F (110 degrees C)
• Integrated gasket provides airtight seal with no glues, primers, or solvents required
• Thin-wall, lightweight polypropylene construction for easier handling and routing
• Long socket end for secure, low-leak connections
• Single-wall construction suitable for interior venting runs

Compatibility

Designed for use within the InnoFlue single-wall polypropylene venting system on Category IV condensing appliances requiring 2-inch vent pipe.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with the appliance manufacturer instructions and applicable mechanical codes. Power down and lock out the appliance before beginning any venting work. No adhesives or solvents are required for joint assembly; ensure the integrated gasket is properly seated before pushing sections together. Slope and support the vent run per the vent system manufacturer guidelines and local code requirements.

Technical Specifications

• Diameter: 2 inches
• Length: 36 inches
• Material: Polypropylene
• Wall Type: Single Wall
• Connection Type: Long Socket with Integrated Gasket
• Max Flue Gas Temperature: 230 degrees F (110 degrees C)
• Certifications: Evaluated to UL1738 and ULCS636 by ICC

Standard Information

• Brand: CENTROTHERM
• Manufacturer Part Number: isvl023-25