Duravent 08VT B-vent Cap 8 Inch High Wind Top

Product Description

The DURAVENT 08VT is a B-vent termination cap designed for vertical vent installations in high wind environments. It fits 8-inch diameter B-vent pipe and uses a high wind top design to resist downdrafts and maintain stable draft performance in Category I gas appliance venting systems. This cap installs at the uppermost point of a vertical vent stack and is a standard component in residential and light commercial gas appliance venting projects. Licensed HVAC technicians and gas appliance installers typically select this cap when vertical terminations are exposed to prevailing winds or elevated roofline conditions.

The 08VT is suited for vertical termination applications on Category I gas appliances, including natural gas and propane furnaces, water heaters, and boilers vented through B-vent pipe systems. It is intended for outdoor rooftop installation where vertical vent runs terminate above the roofline. The high wind top geometry helps prevent wind-induced downdraft from disrupting combustion appliance draft, which is a critical performance factor in exposed or high-elevation installations.

Key Features

• High wind top design reduces downdraft risk at vertical vent terminations
• Fits 8-inch B-vent pipe diameter
• Intended for vertical terminations only — not approved for horizontal or side-wall exit
• Compatible with Category I gas appliance venting applications
• Installs at the top of the vent stack without penetrating the roof plane

Compatibility

Designed as an OEM-style termination cap for 8-inch B-vent vertical vent systems used in Category I gas appliance applications.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified gas appliance service professional in accordance with NFPA 54 and the appliance manufacturer venting requirements. Shut down and allow the gas appliance and vent system to cool completely before removing or installing any vent components. Verify that the cap is secured and sealed per local code requirements before restoring appliance operation. This cap is approved for vertical terminations only and must not be used on horizontal or side-wall vent exits.

Technical Specifications

• Pipe Diameter: 8 inches
• Termination Type: Vertical only
• Vent Type: B-Vent
• Application: Category I gas appliance venting
• Wind Resistance: High wind top design

Standard Information

• Brand: DURAVENT
• Manufacturer Part Number: 08VT