Hart Cooley 7r6 Type B Vent Round Pipe 7x6 Inch

Product Description

The HART COOLEY 7r6 is a double-wall Type B vent round pipe designed for Category 1 gas appliance venting applications. It measures 7 inches in diameter and 6 inches in length, featuring an aluminum inner wall and a galvanized steel outer wall. This construction provides the thermal performance and corrosion resistance required for venting natural gas and propane appliances that produce non-positive vent pressure. Licensed HVAC technicians and plumbers install this pipe as part of listed B-vent systems on residential and light commercial gas appliances.

This pipe section is intended for use in Category 1 venting systems, which handle flue gases from appliances operating with non-positive vent static pressure and flue gas temperatures that avoid excessive condensation. Typical applications include gas furnaces, water heaters, boilers, and other atmospheric-draft appliances. It is installed vertically or at specified offsets as part of a complete factory-built B-vent assembly, following the appliance manufacturer and vent system listing requirements.

Key Features

• Double-wall construction with aluminum inner liner and galvanized outer wall
• 7-inch diameter for compatibility with corresponding B-vent fittings and components
• 6-inch length for tight-space runs and precise system layout
• Round pipe profile for Category 1 atmospheric-draft appliance venting
• Lightweight at 1.25 pounds for easy handling and overhead installation

Compatibility

Designed as an OEM-style replacement and new-installation component for 7-inch Type B double-wall vent systems used with Category 1 gas appliances.

Installation Notes

Installation must be performed by a qualified HVAC technician or plumber in accordance with the vent system manufacturer listing, NFPA 54 (National Fuel Gas Code), and local mechanical codes. Shut off and lock out the gas supply and allow the appliance to cool completely before servicing any vent components. All sections and fittings must come from the same listed B-vent system to maintain listing compliance. Do not mix vent diameters or use unauthorized fittings within the same vent run.

Technical Specifications

• Vent Type: Type B Double Wall
• Category: Category 1
• Pipe Shape: Round
• Diameter: 7 inches
• Length: 6 inches
• Inner Material: Aluminum
• Outer Material: Galvanized Steel
• Weight: 1.25 pounds

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 7r6