Learn about chimney chase covers. This video provides useful background information about chimney chase covers and how to accurately measure your chimney to fit a chase cover. In this video you’ll learn the difference between a variety of chase covers; along with the importance of having one for a factory built chimney. You’ll also be shown how to properly measure for a chase cover and collar. The important factors when determining if your chase cover is functioning properly is: seal around the interior whole (flue), a high collar, drip-edge with the 45 degree angle this is needed for the proper water runoff. Understanding the difference between single and multi-flue chase covers. Lastly, you will see what measurement to take for fitting a new single or multi flue chase cover.