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7 to 8 Inch Ventis Increaser Single Wall Black Stove Pipe

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Introducing the VSB78 - a 7" to 8" Ventis Single-Wall Black Stove Pipe Increaser, meticulously crafted from durable 22-gauge cold-rolled steel. This versatile increaser effortlessly adapts and connects a 7" pipe to an 8" pipe, providing the flexibility you need. We take pride in delivering high-quality products. These Free-Flow™ Increasers offer adaptability to suit your preferred pipe. They feature an inside crimp (male end) 7" designed for 7" pipes.


  • Increases the pipe diameter from 7 to 8 inches, allowing for adaptation to your preferred pipe diameter
  • Designed for use with Ventis Single-Wall Black Stove Pipe
  • Crafted from heavy-duty 22-gauge, cold-rolled steel for long-lasting durability
  • Provides a secure 18" clearance to combustible materials for safety
  • Resistant to scratches and rust, ensuring a lasting, pristine appearance
  • Features a fume-free finish, promoting a cleaner environment
  • Utilizes Olympia's advanced butt-welding and precision end-forming technology for perfectly round pipes and an impeccable pipe-to-pipe fit

This black connecting pipe is an integral part of the venting system, ensuring the proper transport of flue gases to the chimney while preventing any leaks into your living space. It also adds an aesthetically pleasing touch as the most visible portion of the venting system. Ventis Black Stove Pipe, available in single or double walls, is your clear choice for quality and performance.


  • Material: Steel
  • Color: Black
  • Weight: 10 lbs.
  • Pipe Wall: Single
  • Application: Stove
  • Pipe Type: Increaser
  • Size: "7 to 8" Inner Diameter


Ventis Single Wall Black Stove Pipe: Safely Linking Class-A Chimney to Your Heating Appliance

Seamless Connection: Most heating appliances necessitate a connector pipe bridging the gap between the chimney and the appliance itself, be it a Class-A pipe or a masonry chimney. This black connector pipe plays a pivotal role in your venting system. It must fulfill multiple criteria. First and foremost, it must securely transport flue gases to the chimney without any risk of leakage into your home. Additionally, it needs to maintain the proper clearance from combustible materials. Lastly, it should possess an appealing aesthetic, as it's the visible face of your venting system. In this context, Ventis Black Stove Pipe, available in both single and double wall configurations, stands out as the clear choice.

The Distinct Advantage:

  • Sturdy Construction: Crafted from heavy-duty 22-gauge cold-rolled steel, ensuring durability.
  • Patent-Pending Fume-Free Finish: Eliminates the initial firing odors for a more pleasant environment.
  • Precision Engineering: Achieves a flawless roundness and a perfect fit from pipe to pipe, thanks to smooth welding and end-forming technology.
  • Five-Year Limited Warranty: Providing peace of mind and long-term reliability.

Wood Burning Stove Pipe Clearances:

To ensure safety and compliance, it's crucial to maintain proper clearances between stovepipes chimney connectors, and combustible surfaces. The National Fire Protection Association (NFPA) dictates that single wall stove pipe should maintain an 18" clearance from combustible walls. When such clearance isn't feasible, a double-wall stovepipe should be employed. Most double-wall stove pipes require an 8" clearance from ceiling combustibles and a 6" distance from wall combustibles. By utilizing a "Heat Shield" with a single wall stove pipe, you can reduce clearances from 18" to 6" for walls and 9" to the ceiling.

Proper Installation Guidelines:

Contrary to a common misconception, stovepipes cannot extend directly through the roof and ceiling of a wood stove. They must connect from the stove to a wall or ceiling. If the stovepipe is intended to pass through the ceiling, attic, or roof, it must be linked to a Class-A pipe, which is insulated and necessitates a 2-inch clearance from combustible materials. Additionally, when entering a flammable wall, an insulated thimble is mandatory.

Ventis Single Wall Black Stove Pipe ensures both safety and aesthetic appeal, providing you with the peace of mind and functionality required for a successful heating appliance installation.

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Last updated on March 27th 2024.



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