Ao Smith 100112404 Straight Vent Pipe 4x24 in

Product Description

The AO SMITH 100112404 is a straight vent pipe section designed for non-condensing tankless water heater installations. Measuring 4 inches in diameter and 24 inches in length, this pipe connects to the flue system of compatible Takagi tankless units, directing combustion exhaust safely out of the structure. It is a purpose-built venting component intended for installation by licensed plumbers and HVAC technicians working on tankless water heater systems. Its straight-run design suits vertical or horizontal vent runs where a direct, unobstructed section is required between the appliance collar and a termination point or elbow fitting.

This vent pipe section is used in residential and light commercial tankless water heater applications. It is specifically listed for use with Takagi non-condensing tankless models and fits within venting assemblies where a 4-inch diameter straight section is required. Proper venting is critical to safe appliance operation, and this pipe is designed to integrate directly into the approved vent system for the listed units.

Key Features

• 4-inch diameter matches the flue collar size on compatible Takagi non-condensing tankless units
• 24-inch straight length accommodates standard vent run segments
• Designed for non-condensing vent applications
• Purpose-built OEM-style replacement or system expansion component
• Straight pipe configuration supports both vertical and horizontal vent routing

Compatibility

Listed for use with the following Takagi tankless water heater models: T-KJr2-IN, T-K4-IN, T-D2-IN, T-M32, and T-M32-ASME.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician in accordance with the appliance manufacturer's venting instructions and applicable local mechanical codes. Shut off the gas supply and allow the appliance to cool completely before beginning any venting work. Ensure all vent joints are properly secured and sealed per the manufacturer's guidelines. Do not mix vent pipe components from different manufacturers or systems, as this can compromise the integrity and safety of the flue assembly.

Technical Specifications

• Product Type: Straight Pipe
• Vent Type: Non-Condensing
• Diameter: 4 inches
• Length: 24 inches

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100112404