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6 Inch Ventis Galvalume Wall Pass-Thru Thimble Non-Insulated

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VA-WPT06 - 6" Ventis Class-A All-Fuel Chimney Galvalume Wall Pass-Thru Thimble Non-Insulated. Use when a Class-A chimney passes horizontally through a combustible wall.

***Note: Universal Adaptor Included.


  • Sleek Mirror Finish Outer Casing made of 430 Stainless Steel
  • Non-carcinogenic 2192-degree insulation for enhanced safety
  • Inner Casing available in your choice of 304L or 316L Stainless Steel
  • Innovative Ventis Thermal Web technology
  • Efficiently reduces heat transfer to the exterior of the pipe
  • Allows for thermal bridging between sections of the pipe
  • Seamlessly joins the inner and outer pipe while accommodating expansion and contraction of the inner pipe
  • Provides 360-degree reinforcement for the fastening system
  • Designed specifically for solid fuel applications
  • Listed to UL103HT and ULCS629
  • Manufactured in the USA
  • Forever Warranty™

Upgrade your chimney system with the VA-WPT06 for enhanced safety and performance.


  • Use When a Chimney Passes Horizontally Thru a Combustible Wall
  • Includes Universal Adapter
  • Galvanized Painted Black
  • Adjustable from 4" to 8"
  • Includes a 10" Length Finishing Cover to go over the Class-A pipe on the interior
  • Exterior is Stain Coat Black Steel "Paint Ready" to Match the Home Exterior


The Ventis Class-A All-Fuel Chimney Galvalume Wall Pass-Thru Thimble Non-Insulated is a component designed for use in a Class-A chimney system, typically used for venting various heating appliances such as wood stoves, fireplaces, furnaces, and other solid fuel or oil-burning devices. This thimble is an essential part of the chimney assembly, and it serves a specific purpose in creating a safe and efficient venting system.

Here's a breakdown of its key features:

  1. Ventis Class-A: This indicates that the thimble is designed to be used in a Class-A chimney system, which is a high-quality, insulated chimney system known for its durability and safety standards. Class-A chimneys suit various fuels and offer excellent protection against heat and fire hazards.
  2. All Fuel: This thimble is versatile and can be used with various heating appliances and fuels, including wood, gas, oil, and more. It is engineered to withstand the demands of different combustion types.
  3. Galvalume: The term "Galvalume" refers to a specific type of coating that provides corrosion resistance. This ensures the thimble remains durable and functional over time, even in potentially corrosive or humid environments.
  4. Wall Pass-Thru: A pass-thru thimble allows the chimney to safely penetrate and pass through a wall or other building structure. It helps maintain the integrity of the building envelope while providing a safe passage for the chimney.
  5. Non-Insulated: The "non-insulated" feature indicates that this thimble is not thermally insulated. Insulated thimbles are used in situations where extra heat protection is required, such as close to combustible materials or when there are strict clearance requirements. In cases where insulation is unnecessary, a non-insulated thimble is a suitable choice.

In summary, the Ventis Class-A All-Fuel Chimney Galvalume Wall Pass-Thru Thimble Non-Insulated is a durable and versatile component for Class-A chimney systems, allowing for safe passage through a building's wall. It is suitable for various heating appliances and fuels, making it a valuable part of a chimney installation to ensure safety and efficiency in venting combustion byproducts.

VENTIS® CLASS-A All-Fuel Chimney System

The Ventis Class-A All Fuel Chimney with a 304L or 316L inner and 430 outer wall is a high-quality and versatile chimney system designed for venting a wide range of heating appliances, including wood stoves, fireplaces, furnaces, and more. This chimney system is known for its durability, safety, and compatibility with various fuel types, making it a popular choice for both residential and commercial applications.

Here are some key features and benefits of the Ventis Class-A All-Fuel Chimney:

  1. Dual-Wall Construction: The chimney consists of two walls - a 304L or 316L stainless steel inner liner and a 430 stainless steel outer wall. The 304L or 316L stainless steel is highly corrosion-resistant and is designed to withstand high temperatures and corrosive byproducts produced during the combustion process.
  2. All Fuel Compatibility: This chimney system is suitable for use with a variety of fuel types, including wood, oil, gas, and coal. It can handle the demands of different heating appliances, ensuring safe and efficient venting.
  3. Easy Installation: The Ventis Class-A All Fuel Chimney is designed for straightforward installation. It typically includes features such as twist-lock connections and secure locking bands, making it easier for installers to put the system in place.
  4. High-Temperature Insulation: Some models come with high-temperature insulation between the inner and outer walls. This insulation enhances the safety of the chimney by reducing the clearance requirements for combustibles, and it helps maintain higher flue gas temperatures for improved draft.
  5. Durable and Long-Lasting: The 304L or 316L stainless steel inner liner provides excellent resistance to corrosion and rust, ensuring that the chimney system remains durable and long-lasting even in harsh conditions.
  6. UL Listed and Tested: Ventis Class-A All Fuel Chimney systems are typically tested and listed to UL 103 and UL 103HT standards, ensuring that they meet rigorous safety and performance criteria.
  7. Versatile Design: The chimney system is available in various sizes and configurations to accommodate different installation requirements, including through-the-roof, through-the-wall, and freestanding installations.
  8. Sleek Aesthetics: The stainless steel finish of the outer wall adds a clean and polished look to your home or commercial space.

When choosing a Ventis Class-A All Fuel Chimney system, it's essential to consult with a professional installer to ensure that the system is appropriately sized and installed according to local building codes and regulations. Proper installation and maintenance are crucial to the safe and efficient operation of your heating appliance.

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Last updated on March 7th 2024.



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