Hart Cooley 5et B-vent Tee 5 Inch Round Double Wall

Product Description

The HART COOLEY 5et is a 5-inch round double-wall B-vent tee fitting used in natural gas and propane appliance venting systems. This tee connector is designed to branch or redirect flue gases within a Type B gas vent assembly. The double-wall construction provides an insulating air space between the inner and outer walls, helping maintain draft and reduce heat transfer to surrounding combustible materials. Weighing 1.75 pounds, it is a manageable component for single-technician installation. Licensed HVAC technicians and gas fitters install this fitting as part of a complete B-vent system serving furnaces, boilers, and water heaters.

This fitting is suited for residential and light commercial venting applications where a Type B double-wall gas vent is required. It is used at branch points in the vent run, allowing a lateral connection to the main vertical vent stack. Typical installations include utility rooms, mechanical closets, and basement mechanical areas where multiple appliances tie into a common vent. The 5-inch size accommodates mid-range appliance venting requirements commonly found in residential gas heating equipment.

Key Features

• 5-inch diameter fits standard Type B double-wall gas vent systems
• Round double-wall construction provides insulating air gap between walls
• Tee configuration allows branch connections within the vent run
• Lightweight at 1.75 pounds for straightforward single-tech handling
• Designed for use with natural gas and propane vented appliances

Compatibility

Designed as an OEM-style replacement or new-installation component for 5-inch Type B double-wall gas vent systems used with residential and light commercial gas-fired appliances.

Installation Notes

Installation must be performed by a licensed HVAC technician or gas fitter in accordance with the appliance manufacturer instructions, NFPA 54 (National Fuel Gas Code), and applicable local codes. Shut off the gas supply and allow the appliance to cool completely before disassembling any vent sections. Maintain required clearances to combustibles as specified for Type B vent assemblies. Do not mix B-vent components from different manufacturers within the same vent system unless listed for such use.

Technical Specifications

• Vent Type: Type B Double Wall
• Shape: Round
• Diameter: 5 inches
• Weight: 1.75 pounds

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 5et