Product Description
The Vacu-Stack chimney cap is an economical alternative for preventing downdrafts and has a lifetime warranty. If you frequently experience wind-related backpuffing, this cap may well solve the problem.
The Vacu-Stack is made of 26-ga., 304-alloy stainless steel. To install, slide the Vacu-Stack into the pipe and seal with a bead of high temperature silicone sealant.
Lifetime warranty.
To use with a clay tile flue liners a masonry adaptor must also be ordered.
When using Vacu-Stack on a fireplace flue - READ CAREFULLY. The Vacu-Stack size you use must have a cross-sectional area appropriate for the fireplace.
6" Vacu-Stack = 28.3 square inch cross-sectional area
7" Vacu-Stack = 38.5 square inch cross-sectional area
8" Vacu-Stack= 50.3 square inch cross-sectional area
9" Vacu-Stack= 63.6 square inch cross-sectional area
10" Vacu-Stack = 78.5 square inch cross-sectional area
12" Vacu-Stack = 113.1 square inch cross-sectional area
Free shipping within the continental US
