Type B Gas Vent Wall Thimble, Four Inch Diameter

Introducing the round gas vent with double wall construction, now available at Qualheims True Value - Shawano in Shawano, WI. This expertly designed vent is essential for safely and efficiently venting gas-fired appliances such as water heaters, furnaces, and stoves. Its innovative double wall construction features a built-in air space that provides permanent insulation, keeping the inner pipe hot while maintaining a relatively cool outer surface. This design not only enhances safety but also improves overall venting performance, making it a reliable choice for homeowners and professionals in Shawano.

• Adjustable fit: Easily adjusts from 4-1/8 inches to 7 inches to accommodate varying wall thicknesses, ensuring a secure and proper installation.


• Safety clearance and firestop: Designed to maintain clearance to combustibles and serve as a firestop, providing peace of mind and compliance with safety standards.


• Certified compliance: Meets Underwriters Laboratories UL 441 standards and adheres to National Fire Protection Agency NFPA 54 and NFPA 211 codes, guaranteeing quality and safety.


• Versatile application: Suitable for venting a wide range of gas-fired appliances including water heaters, furnaces, and stoves.


• LockTab feature: Offers an alternative method to secure the pipe when required by local code, enhancing installation flexibility.


• Durable materials: Outer material is constructed from 28 gauge galvanized steel, while the inner liner is made of aluminum, combining strength with heat resistance.


• Installation guidance: Users are advised to check appliance installation instructions for detailed requirements to ensure proper setup.


• Industry best warranty: Backed by a leading warranty—contact Selkirk for full details.

This round gas vent is ideal for homeowners, contractors, and HVAC professionals in Shawano who require a dependable and safe venting solution. Whether you are installing a new water heater or upgrading your furnace venting system, this product ensures compliance with safety codes while providing efficient performance. Its adjustable design makes it suitable for a variety of wall thicknesses, simplifying installation in diverse building structures found throughout Shawano. The built-in insulation helps maintain optimal temperatures within the vent, reducing heat loss and enhancing appliance efficiency.



Imagine completing your home heating or gas appliance project with confidence, knowing that the vent you installed meets rigorous safety standards and offers long-lasting durability. The LockTab feature provides additional security where local codes demand it, making this vent a versatile choice for many applications in Shawano. Whether you are a professional installer or a knowledgeable DIY enthusiast, this vent supports safe and effective gas appliance operation.



In summary, the round gas vent with double wall construction is a critical component for safe and efficient venting of gas-fired appliances. Available at Qualheims True Value - Shawano in Shawano, WI, it combines safety, durability, and adaptability to meet the needs of customers throughout the region. Ensure your gas appliances operate safely and effectively by choosing this trusted venting solution.