Hart Cooley 12r24 Type B Vent Round Pipe 12 in 2 Ft

Product Description

The HART COOLEY 12r24 is a double-wall Type B vent round pipe designed for Category 1 gas appliance venting applications. Measuring 12 inches in diameter and 2 feet in length, this pipe section features an aluminum inner wall and a galvanized steel outer wall. The double-wall construction maintains flue gas temperature to support proper draft while keeping exterior surfaces cooler to the touch. Licensed HVAC technicians and plumbers install this pipe as part of a listed Type B vent system on natural gas and propane appliances including furnaces, boilers, and water heaters.

This pipe section is suited for residential and light commercial Category 1 venting installations where a listed Type B double-wall vent system is required by the appliance manufacturer or local mechanical code. The 12-inch diameter accommodates higher-capacity appliances with larger flue outlet requirements. It connects with other listed Type B vent components of the same diameter to form a continuous, code-compliant venting assembly routed through conditioned or unconditioned spaces.

Key Features

• Double-wall construction with aluminum inner liner and galvanized outer wall
• 12-inch diameter for high-capacity Category 1 appliance venting
• 2-foot section length for flexible layout and shorter run increments
• Round pipe profile for standard Type B vent system assembly
• Weighs 7.95 pounds per section for manageable single-technician handling

Compatibility

Designed as an OEM-style component for use in listed Type B double-wall vent systems serving Category 1 gas appliances. Must be used with compatible listed Type B vent fittings and components of matching 12-inch diameter.

Installation Notes

Installation must be performed by a licensed HVAC technician or plumber in accordance with the appliance manufacturer instructions, NFPA 54, and applicable local mechanical codes. Shut off gas supply and allow the appliance to cool completely before disassembling or extending an existing vent system. Maintain required clearances to combustibles as specified by the vent system listing. Do not mix Type B vent components from different listed systems or manufacturers unless explicitly permitted by the system listing.

Technical Specifications

• Diameter: 12 inches
• Length: 2 feet
• Pipe Shape: Round
• Vent Type: Type B Double Wall
• Venting Category: Category 1
• Inner Material: Aluminum
• Outer Material: Galvanized Steel
• Weight: 7.95 pounds

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 12r24