Hart Cooley 3esc B-vent Storm Collar 3 Inches

Product Description

The HART COOLEY 3esc is a round fixed storm collar designed for use with 3-inch B-vent venting systems. Storm collars seal the gap between a vent pipe and the roof or wall penetration point, preventing water infiltration at the flashing interface. This collar is a standard component in gas appliance venting installations and is typically installed by licensed HVAC technicians or plumbers working on residential venting systems. At 0.15 pounds, it is a lightweight metal collar suited for straightforward field installation.

This storm collar fits 3-inch B-vent pipe assemblies, making it applicable to residential gas furnaces, water heaters, boilers, and other Category I naturally drafted appliances that use double-wall B-vent flue pipe. It is installed at roof or wall penetrations where the vent pipe exits the building envelope, providing a weather-tight seal around the pipe at the flashing point.

Key Features

• Fixed round design sized for 3-inch B-vent pipe
• Seals the vent pipe-to-flashing gap to block water intrusion
• Lightweight construction at 0.15 pounds for easy handling on the roof
• Compatible with standard B-vent double-wall venting assemblies

Compatibility

Designed as an OEM-style replacement storm collar for 3-inch B-vent venting systems used with residential gas appliances.

Installation Notes

Installation is performed by a licensed HVAC technician or plumber. Before servicing any venting component, shut off the gas supply and allow the appliance and flue to cool completely. The storm collar is slipped over the vent pipe and seated against the roof flashing; a high-temperature silicone sealant is typically applied around the collar edge to ensure a watertight seal. Follow local building codes and NFPA 54 venting requirements when installing or replacing B-vent system components.

Technical Specifications

• Size: 3 inches
• Type: Storm Collar
• Weight: 0.15 pounds

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 3esc