Hart Cooley 4EAL SA11265 B-vent 90 Degree Adjustable Elbow

Product Description

The HART COOLEY 4EAL SA#11265 is a 4-inch B-vent 90-degree adjustable elbow designed for venting gas-fired appliances in residential and light commercial installations. This fitting redirects flue gas flow at a 90-degree angle and allows field adjustment to suit varying installation geometries. It is used in double-wall Type B gas vent systems, which are the standard venting method for natural gas and propane furnaces, boilers, and water heaters operating with a Category I draft. Licensed HVAC technicians and plumbers are the typical installers of this component.

This adjustable elbow fits into Type B double-wall vent systems where a 90-degree directional change is required along the vent run. Common applications include routing flue gases from upflow or horizontal furnaces, gas water heaters, and boilers to a vertical vent stack or chimney liner. The adjustable design accommodates minor alignment variations in the field without requiring additional offset fittings, making it well suited for both new construction rough-in and service replacement work.

Key Features

• 4-inch diameter fits standard Type B double-wall gas vent systems
• 90-degree adjustable elbow allows field-fit flexibility during installation
• Designed for Category I natural gas and propane appliance venting
• Double-wall B-vent construction maintains flue gas temperature for proper draft
• Direct replacement profile for existing B-vent elbow fittings of the same diameter

Compatibility

Designed as an OEM-style replacement fitting for 4-inch Type B double-wall gas vent systems used with Category I gas-fired appliances.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber in accordance with NFPA 54 (National Fuel Gas Code) and local mechanical codes governing gas appliance venting. Shut off the appliance and allow the vent system to cool completely before disassembling or modifying any vent sections. Ensure all joints are properly engaged and secured per the manufacturer's assembly instructions, and verify that the total number of elbows in the vent run does not exceed code-allowable limits for the appliance and vent height. Do not use Type B vent components with appliances requiring Type L vent or direct-vent systems.

Technical Specifications

• Vent Diameter: 4 inches
• Vent Type: Type B Double-Wall Gas Vent
• Elbow Angle: 90 degrees adjustable

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 4EAL SA#11265