Installing a chimney cap
A chimney cap can be purchased in several kinds of materials such as stainless or galvanized steel, copper, cast iron or aluminum. Stainless steel is the preferred material since it is better able to withstand continuous exposure to smoke, wind, and rain. As well, it’s not as prone to rusting, and this will lower the risk of your chimney becoming stained.
Generally, when you have a fireplace installed, the chimney comes complete with a cap. It’s recommended that you stay with this since you’ll get better performance and safety because it’s designed specially for your equipment. However, at some point you might need a replacement cap, or even a special model to deal with excessive wind or draft problems.
If you’re experiencing draft problems you can install a draft increasing chimney cap which will harness the wind and cause a more powerful updraft.
If you just need a replacement cap, look for the same make and model as your existing equipment. If your search is unsuccessful, try using a cap from a comparable brand, but be sure to ask for advice at the store. Your final option is a generic metal chimney cap.
When you’re buying a chimney cap, the product should include a screen to keep sparks from exiting the chimney. Also, since some chimneys have more than one opening, make sure the cap can accommodate the number of flues you have.
You can mount a chimney cap in various ways. Most often, screws are placed around the base of the cap and then tightened against the flue. An inside mounting style can be used if your chimney doesn’t have a lining or the flue doesn’t extend far enough out the top. If you’re not having success with either of these methods, you can purchase special mounting angles or fasteners which can be attached to the chimney structure with lag bolts or by using cement.
So when you’re thinking fireplace tools and accessories, don’t forget the essential and functional chimney cap.
