6" x 18" Round Pipe, Type B Gas Vent

The Hart & Cooley 016304 Round Type B Gas Vent Pipe (Model 6RP18) is a precision-engineered venting component designed for use in professional gas-fired heating and mechanical system installations. This 18-inch section of 6-inch diameter vent pipe provides a secure, code-compliant flue connection within Type B gas vent systems. Constructed with a double-wall design utilizing an aluminum inner liner and galvanized steel outer casing, the 6RP18 ensures long-term durability, corrosion resistance, and consistent thermal performance under continuous high-temperature operation.

Details

• Model Number: 016304
• Manufacturer: Hart & Cooley
• Product Type: Round Type B Gas Vent Pipe
• Series: RP
• Part Number: 114809
• Nominal Diameter: 6 inch (ID)
• Outside Diameter (OD): 6-1/2 inch
• Length: 18 inch (1-1/2 feet)
• Wall Thickness: 0.012 inch
• Material: Double-wall aluminum inner liner and galvanized steel outer wall
• Connection Type: Twist-lock joint for secure, tool-free assembly
• Application: Type B gas vent systems for natural gas and LP-fired appliances such as furnaces, boilers, and water heaters
• Temperature Rating: Continuous operation up to 480 °F flue gas temperature
• Orientation: Suitable for vertical or horizontal venting configurations
• Compliance: UL 441 Listed; conforms to NFPA 54 (National Fuel Gas Code) and applicable local mechanical codes

Professional Specifications

The Hart & Cooley 6RP18 vent pipe section is designed to provide efficient flue gas transport, mechanical strength, and safe operation in Type B venting systems. The aluminum inner liner ensures corrosion resistance and smooth airflow to minimize pressure loss, while the galvanized steel outer shell provides rigidity and environmental protection. The double-wall construction reduces surface temperature, maintaining required clearance to combustibles. The precision twist-lock coupling allows quick installation with a secure, gas-tight fit and no tools or sealant. Each section is manufactured to exact dimensional tolerances, ensuring compatibility with all Hart & Cooley RP Series vent fittings and components.

Summary

The Hart & Cooley 016304 (6RP18) 6-inch Type B Round Gas Vent Pipe provides a durable, UL-listed venting solution for professional HVAC and mechanical systems. Its 18-inch length, aluminum-steel double-wall construction, and precision twist-lock design ensure safe, efficient, and code-compliant performance in both residential and commercial gas venting applications.