Duravent 04T B-vent Tee Double Wall 4 Inches

Product Description

The DURAVENT 04T is a double-wall B-vent tee fitting used in Category I natural draft gas appliance venting systems. It provides a branch connection point within the vent run and includes a cleanout access port for serviceability. Built to a 4-inch diameter with double-wall construction, the fitting handles flue gas safely by maintaining the temperature differential between the inner flue liner and the outer wall. Licensed HVAC technicians and plumbers install this fitting when a vent system requires a directional branch or periodic cleanout access along the run.

This tee is suited for residential and light commercial Category I gas appliance venting installations, including natural draft furnaces, water heaters, and boilers vented through B-vent systems. It connects within a vertical or angled vent assembly wherever a branch outlet or cleanout point is required by the installation layout or applicable venting code.

Key Features

• Double-wall construction maintains flue gas temperature and reduces condensation risk
• 4-inch diameter fits standard B-vent system runs
• Tee configuration provides branch connection and cleanout access in a single fitting
• Designed for Category I gas appliance venting applications
• Compatible with DVP series double-wall B-vent components

Compatibility

Designed as an OEM-style replacement and field-install fitting for 4-inch double-wall B-vent systems used in Category I gas appliance venting applications.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber in accordance with the appliance manufacturer instructions, NFPA 54, and local mechanical codes. Shut off and lock out the gas supply and allow the appliance to cool completely before working on any vent section. Ensure all joints are properly seated and secured per the DVP system connection requirements, and verify the completed assembly meets required clearances to combustibles before returning the appliance to service.

Technical Specifications

• Diameter: 4 inches
• Wall Construction: Double Wall
• Vent Type: B-Vent
• Application: Category I Gas Appliance Venting

Standard Information

• Brand: DURAVENT
• Manufacturer Part Number: 04T