4 in. Vacu-Stack Chimney Cap

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4 in. Vacu-Stack Chimney Cap

4 in. Vacu-Stack Chimney Cap

The Vacu-Stack is the premier chimney cap for solving common, wind-related chimney draft problems. Prevent wind related downdrafts with your...

The Vacu-Stack is the premier chimney cap for solving common, wind-related chimney draft problems. Prevent wind related downdrafts with your tiny stove by installing the 4" Vacu Stack Chimney Cap.


Product Details:

The 4" Vacu-Stack chimney cap is the premier chimney cap for preventing wind related downdraft problems. Strong winds can make operating a tiny wood stove difficult. A strong wind is capable of pushing the smoke down the chimney pipe and into the home.

The Vacu-Stack Chimney Caps unique design creates an updraft when wind hits the cap preventing the smoke from being pushed down the chimney. The Vacu-Stack also functions as a conventional chimney cap by protecting the chimney from rain, snow, debris, and animals.

The 100% stainless steel construction will never rust and is capable of withstanding the harshest elements. The Vacu-Stack Chimney Cap is easily installed by sliding inside the chimney pipe and is held in place with a high temperature RTV silicone.


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Our 316Ti flexible chimney liner and chimney liner components have passed the rigorous testing at the Underwriters Laboratories with best in class status and are UL Listed. So if you are looking for UL listed chimney liner sold directly to homeowners, then look no further than Rockford Chimney

Customer Testimonials

Back in July you gave me excellent advice re. sizing/purchasing a flue liner for the chimney associated with my wood stove. I'd like to thank you once agai... More

—AE Northfield, MN

A few weeks ago I ordered a chimney liner system for my fireplace insert. Your salesman recommended the liner system plus the insulating blanket. I just wa... More

—AH Happy customer

Just got around to installing my new smooth flexible liner and deluxe terra cotta cap (wow). The quality of your product is second to none. Very pleased an... More

—B.B. from Massachusetts

Thanks so much for the great tech service from Dennis, very knowledgable, friendly and proffessional.Your website is the best, beats your competition by fa... More

—Bill in Knoxville

Sue and Dennis, I received the final part of my order yesterday (the chimney cap that actually fits over the chimney chase). It looks wonderfu... More


Hello, I was shopping for an fireplace insert and called RCS to ask why they were so much cheaper than my local guy, the reply was " we sell thousand of th... More

—Chris, PA.