* Notes on smoke shelves or smoke chambers:
It may be possible to find a suitable location in or above the smoke chamber, but you will need an HEK Extender to install the Balloon in a higher location.
4) Measure the length and depth of the location you choose to install a Chimney Balloon. It is possible to measure with a standard tape measure, but it is easier to measure with a foldable carpenters ruler.
5) We recommend that you buy the Chimney Balloon that is exactly the same dimension of your install location. But, It is OK to buy a Chimney Balloon that is up to 6 inches larger in either dimension than your measured opening, since you will be inflating it into place. DO NOT buy a Chimney Balloon that is too small for the measured opening.
6) Visit the Chimney Balloon shopping page to purchase the proper sized Chimney Balloon. If you do not see the size you require on the shopping page please visit the Custom Chimney Balloon section of the website to order a custom Chimney Balloon.
If you need further instruction on how to measure your chimney:
Call Customer Service (608) 467-0229 M-F 9am-5:00pm (CST)