6" x 10" Oval Vacu-Stack

The Vacu-Stack Chimney Cap is the best solution for wind induced downdrafts on both masonry and prefabricated chimneys. It is designed to stop wind from blowing into the chimney regardless of the wind direction. Accelerated air flow around the Vacu-Stack causes flue gasses to flow up and out of the chimney.

This model is designed for use on a masonry chimney with proper adapter.  A masonry adapter for this model is included and will fit a chimney from 10" x 14" up to a 14" x 18" chimney flue.

• 100% Stainless Steel Construction
• Fasteners Included for masonry adapter
• 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

Specifications:

• Measures 6" x 10"
• Wind tunnel tested
• Tested to UL 103 standard
• 100% Stainless steel construction
• Easy to install, self adjusting spring fit
• Fasteners included for masonry adapter

The Vacu-Stack Chimney Cap is the best solution for wind induced downdrafts on both masonry and prefabricated chimneys. It is designed to stop wind from blowing into the chimney regardless of the wind direction. Accelerated air flow around the Vacu-Stack causes flue gasses to flow up and out of the chimney. This model is designed for use on a masonry chimney with proper adapter. A masonry adapter for this model...Lifetime limited warranty