9'' TDW Vacu-Stack for Air Cooled Chimney

The Vacu-Stack Air Cooled Chimney Cap is the best solution for wind induced downdrafts. It is designed to fit double or triple-wall, air-insulated, factory built chimneys to stop wind from blowing into the chimney regardless of the wind direction. By accelerating air flow around the Vacu-Stack, flue gasses are forced to flow up and out of the chimney.

This Vacu-Stack Air Cooled Chimney Cap features a unique design that actually increases the draft when the wind hits it as opposed to deflecting it down the chimney and overpowering the draft. A special large 16" bottom collar rests underneath the cap to keep rain from entering the air-insulated chimney and maintain the proper internal venting that is required.

• 304 Stainless Steel Construction
• Lifetime Limited Warranty
• Meets UL Standards
• Easy to Install
• See Vacu-Stack Ordering Instructions for proper fit.

View the Vacu-Stack Guide.

Vacu-stack Sizing

Product Note: This item does not include a spark screen, It must be purchased separately. The spark screens that would fit this cap are the Vacu-Stack 1/2'' Spark Screen or the Vacu-Stack 1'' Spark Screen.

Specifications:

• 304 Stainless steel construction
• Measures 9" round inside flue size
• Designed to fit double or triple-wall, air-insulated, factory-built chimneys
• 16" Bottom collar to keep out rain and maintain proper internal venting required