Hart Cooley 4ADFC24 Flexible B-vent Pipe 4x24 Inches

Product Description

The HART COOLEY 4ADFC24 is a flexible B-vent pipe section designed to vent combustion gases from gas-fired appliances to the outdoors. B-vent, also known as Type B gas vent, uses a double-wall design that draws combustion air from the conditioned living space and expels flue gases safely above the roofline. This 4-inch diameter by 24-inch length flexible section allows installers to navigate bends, offsets, and tight vertical runs where rigid pipe would be impractical. It is sized and constructed for residential and light-commercial gas appliance venting applications and is installed by licensed HVAC technicians and plumbers.

This flexible B-vent section is used in vertical venting systems for natural gas and propane appliances including furnaces, boilers, water heaters, and space heaters. The 4-inch diameter accommodates a common appliance vent collar size found in residential gas heating equipment. The 24-inch length makes it a practical choice for short connector runs and transition segments within a B-vent system.

Key Features

• Flexible construction allows routing around obstructions and through tight spaces
• 4-inch diameter fits standard residential gas appliance vent collars
• 24-inch length suited for short connector runs and transition segments
• Double-wall B-vent design helps maintain flue gas temperature for proper draft
• Compatible with Type B gas vent systems for natural gas and propane appliances

Compatibility

Designed as an OEM-style replacement and system component for Type B gas vent installations serving residential and light-commercial gas-fired appliances with a 4-inch vent outlet.

Installation Notes

Installation of B-vent pipe should be performed by a licensed HVAC technician or plumber in accordance with NFPA 54, the National Fuel Gas Code, and local authority-having-jurisdiction requirements. Shut off gas supply and allow the appliance to cool completely before servicing or replacing any vent section. Ensure all joints are properly secured and that the system maintains the required clearances to combustibles as specified by the vent manufacturer and applicable codes. Do not use Type B vent components in applications requiring direct-vent or Category III or IV venting systems.

Technical Specifications

• Diameter: 4 inches
• Length: 24 inches
• Vent Type: Type B Flexible Gas Vent

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 4ADFC24