VORTEX DOUBLE WALL 6" TO 8" INCREASER VOD0271

The VOD0271 increaser allows you to transition from a 6" diameter stove pipe to an 8" diameter pipe within your venting system. You would need this component when connecting a wood stove with a 6" flue collar to an 8" chimney system, or when you need to increase pipe diameter to improve draft performance. The female portion (larger end) represents the 8" diameter connection point.

This double wall increaser requires 6 inches of clearance to combustible side walls and 8 inches of clearance to combustible ceilings. For non-combustible materials like brick or cement, the clearance is 0 inches, though the pipe should not actually touch these surfaces. These reduced clearances compared to single wall pipe provide more flexibility in installation planning.

This increaser is specifically designed for use with Vortex Double Wall Stove Pipe components and should not be mixed with other manufacturers' products. Using incompatible components can compromise safety, void warranties, and may not meet required building codes. For best results and full warranty coverage, use only Vortex components throughout your entire venting system.

Installation is straightforward with the easy-connect design. Simply align the increaser between your pipe sections, ensuring proper orientation with the female (larger) end facing the direction of increased diameter. Secure all connections using at least three #8 x 1/2" self-drilling screws at each joint. All joints should be properly fastened and supported according to manufacturer instructions and local building codes.

The Vortex VOD0271 increaser complies with all major North American safety standards, including NFPA 211 (USA), CSA B365 (Canada), UL 103 HT, and ULCS629. These certifications ensure the product has been rigorously tested for safety and performance when used with solid fuel-fired appliances including wood stoves, freestanding fireplaces, and furnaces.

The exclusive thermal weave design in the stainless-steel inner wall creates a free airflow pattern between the inner and outer pipes. This innovative feature promotes even air circulation, which results in significantly lower outer wall temperatures compared to standard double wall pipe. The thermal weave helps improve safety, reduces clearance concerns, and can help minimize creosote buildup in your venting system.

The increaser comes with a limited lifetime warranty for the original purchaser when properly installed. Regular maintenance includes annual inspection and cleaning of the entire venting system by a professional chimney sweep, or as recommended by your stove manufacturer. During the heating season, inspect for creosote buildup at least every two months. Clean the system thoroughly after each heating season to prevent acid formation from moisture and deposits that can accelerate corrosion.

No, Vortex Double Wall Stove Pipe, including this increaser, should not be installed inside a combustible wall or inside a chimney chase. It is designed as a connector pipe system to be used from the appliance to either a thimble or ceiling transition box. For installations through walls or into chimneys, you must use appropriate adapters such as masonry adapters or universal adapters, and transition to proper Class A chimney pipe for through-wall or through-ceiling applications.