The Don Park BV6B3 is a premium double-wall B-vent duct pipe section engineered to provide safe, reliable venting for Category I gas-burning appliances. Featuring a 6-inch inside diameter and a standard 36-inch length, this pipe is constructed with a fast-heating aluminum inner liner and an insulating annular air space. It is widely applied for routing exhaust gases from residential furnaces, hot water tanks, boilers, and unit heaters.
This high-quality ventilation component utilizes a specialized knurled acme groove seam lock system that allows sections to join together securely without the mandatory use of sheet metal screws. This joint design streamlines installation and prevents expansion or contraction ticking noises during thermal cycles. When screws are optionally applied, they must be short enough to prevent deforming or puncturing the crucial inner liner.
HVAC professionals choose this aluminum B-vent pipe for its certified clearance of 1 inch to combustible materials and its maximum temperature rating of 243°C. It is fully approved for use with natural gas and propane systems, making it a versatile selection for code-compliant mechanical installations. Before ordering, confirm the total required vent length, clearance limits, and layout parameters for your heating project.
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