4" x 24" Round Pipe, Type B Gas Vent

The Hart & Cooley 016103 Round Type B Gas Vent Pipe (Model 4RP24) is a precision-engineered venting component designed for professional installation in natural gas and propane-fired heating systems. This 24-inch section of 4-inch diameter vent pipe provides a secure, code-compliant connection within Type B gas vent systems. Constructed with a double-wall aluminum inner liner and galvanized steel outer casing, the 4RP24 ensures long-term durability, corrosion resistance, and consistent performance under continuous high-temperature operating conditions.

Details

• Model Number: 016103
• Manufacturer: Hart & Cooley
• Product Type: Round Type B Gas Vent Pipe
• Series: RP
• Part Number: 111703
• Nominal Diameter: 4 inch (ID)
• Outside Diameter (OD): 4-1/2 inch
• Length: 24 inch (2 feet)
• Wall Thickness: 0.012 inch
• Material: Double-wall construction with aluminum inner liner and galvanized steel outer wall
• Connection Type: Twist-lock joint system for secure, tool-free mechanical assembly
• Application: Type B vent systems for natural gas and propane-fired furnaces, boilers, and water heaters
• Temperature Rating: Continuous operation up to 480 °F flue gas temperature
• Orientation: Suitable for vertical and horizontal venting installations
• Compliance: UL 441 Listed; conforms to NFPA 54 (National Fuel Gas Code) and applicable mechanical code standards

Professional Specifications

The Hart & Cooley 4RP24 vent pipe section is designed for efficient venting performance, mechanical strength, and ease of assembly within Type B gas vent systems. The aluminum inner liner provides smooth gas flow and resistance to corrosive flue condensates, while the galvanized steel outer casing offers protection from environmental exposure and mechanical stress. The double-wall configuration minimizes heat transfer, ensuring safe clearance to combustible materials. Precision-rolled twist-lock ends allow for quick, secure, and airtight connections without tools or sealants. Each pipe section is manufactured to strict dimensional tolerances for consistent fitment and compatibility across the RP Series product line.

Summary

The Hart & Cooley 016103 (4RP24) 4-inch Type B Round Gas Vent Pipe provides a durable, UL-listed venting solution for professional HVAC and mechanical installations. Its 24-inch length, aluminum-steel double-wall construction, and precision twist-lock connection deliver reliable, code-compliant performance for residential and commercial gas venting systems.