Hart Cooley 8r12 Type B Vent Round Pipe 8 in 1 Ft

Product Description

The HART COOLEY 8r12 is a double-wall Type B gas vent round pipe section designed for Category 1 appliance venting applications. It measures 8 inches in diameter and 1 foot in length, with an aluminum inner wall and a galvanized steel outer wall. The aluminum inner liner resists condensate corrosion while the galvanized outer jacket provides structural durability. This pipe section is installed by licensed HVAC and plumbing contractors as part of a listed B-vent system serving natural gas and propane appliances that operate with non-positive vent pressure and flue gas temperatures within Category 1 limits.

This pipe section is suited for residential and light commercial Category 1 venting installations. Typical applications include vertical vent runs serving gas furnaces, boilers, water heaters, and other Category 1 appliances that require listed double-wall Type B vent pipe. The 8-inch diameter accommodates higher-BTU appliances or combined vent connector configurations. Installers use this section to build or extend a B-vent riser within a conditioned or unconditioned chase.

Key Features

• Double-wall construction with aluminum inner wall and galvanized outer wall
• 8-inch diameter suits higher-capacity Category 1 appliance venting
• 1-foot length for precise vent run sizing and close-clearance installations
• Round pipe profile compatible with standard Type B vent fittings and accessories
• Aluminum inner liner resists flue gas condensate corrosion

Compatibility

Designed as an OEM-style replacement and new-installation component for listed Type B double-wall gas vent systems serving Category 1 appliances.

Installation Notes

Installation must be performed by a qualified HVAC technician or licensed plumber in accordance with NFPA 54, the International Fuel Gas Code, and the vent system manufacturer listing requirements. Shut off the appliance and allow the vent system to cool before handling or modifying any vent section. Maintain all required clearances to combustibles as specified by the B-vent listing and local code. Do not mix components from different B-vent manufacturers within a listed vent system unless explicitly permitted by the listing.