Duc-pac 98520 Round Smoke Pipe 4 in X 12 in 26 Gauge

Product Description

The DUC-PAC 98520 is a 26-gauge round smoke pipe section measuring 4 inches in diameter by 12 inches in length. Fabricated for single-wall venting applications, this pipe section connects gas-fired appliances to chimney or vent connectors as part of a B-vent or single-wall flue assembly. The 26-gauge steel construction meets standard residential venting requirements and is intended for installation by licensed HVAC technicians or qualified plumbers working on forced-air heating systems. Its round profile allows for consistent fitment with standard pipe collars, elbows, and other round vent connector fittings.

This smoke pipe section is used in residential and light-commercial installations where a single-wall connector routes flue gases from a gas furnace, boiler, or water heater to a chimney or Type B vent. The 4-inch diameter is a common size for smaller BTU-rated gas appliances. This product is designed for use in forced-air system installations and is suited for the type of repetitive, volume-driven rough-in work that HVAC installation crews encounter on new construction and retrofit jobs alike.

Key Features

• 4-inch diameter round profile for standard single-wall venting connections
• 12-inch length provides a short, precise connector section
• 26-gauge steel construction for durability in flue connector applications
• Compatible with standard round vent fittings, collars, and elbows
• Designed for forced-air heating system installation environments

Compatibility

Designed as a standard single-wall round smoke pipe connector for residential gas-fired furnaces, boilers, and water heaters requiring a 4-inch flue connector.

Installation Notes

Installation of single-wall smoke pipe connectors should be performed by a licensed HVAC technician or plumber in accordance with the International Fuel Gas Code (IFGC) and local authority having jurisdiction requirements. Always shut down and allow the appliance to cool completely before disconnecting or replacing any vent connector sections. Minimum clearances to combustibles must be maintained per appliance manufacturer specifications and applicable codes. Single-wall connectors are not rated for use through walls, floors, or ceilings.

Technical Specifications

• Diameter: 4 inches
• Length: 12 inches
• Gauge: 26 gauge
• Profile: Round
• Application: Single-wall smoke pipe / flue connector

Standard Information

• Brand: DUC-PAC
• Manufacturer Part Number: 98520