Vacu-Stack Wind Resistant Cap for Air Insulated Chimneys

This is the premier chimney cap for solving common, wind-related draft problems. These problems often occur for homes that have hills, mountains, tall trees or buildings in the vicinity.
How it works: When wind flows around the Vacu-Stack's unique design, wind speeds increase which creates a partial vacuum. This vacuum then pulls flue gases up and out of the chimney, thus preventing wind-induced downdraft and the resulting infiltration of smoke, odor, and flue gas into your home.
This cap also functions as a conventional chimney cap by protecting the chimney from rain, snow, debris, and animals. It is made of Austenitic Stainless Steel and is designed for round chimneys that are air insulated (also called air- cooled).

This Model works with the following types of chimneys:

Double Wall Air Insulated

Triple Wall Air Insulated

Note: Optional stainless steel Spark Arrester is required in some states. 1" x 1" is standard; smaller 1/2" x 1/2" mesh is also available.

Custom Sizes are available: Please call our Technical Sales Department to order a custom size chimney cap - 1-800-919-1904
b>Please be aware that any Vacu-Stack chimney cap that is larger than 10" will be custom made and will ship out in 1-2 weeks.

Customers from all parts of the country have had great success with the Vacu-Stack. We have found that the Vacu-Stack will solve the majority of down draft issues when they are wind-related. Customers who purchase and install the Vacu-Stack for non-wind-related issues may see an improvement, but not a complete resolution to their down draft problems. Please be aware that if you purchase and install the Vacu-Stack, it cannot be returned.