Some chimneys whistle or sing in high winds some don’t draw well when the wind is coming from certain directions and some don’t draw at all.Please email us to let us know if you need a chimney cap that rotates so that its open side is always down wind. The Lyemance dampers are available in combination with a quality chimney cap. We recommend the Lyemance brand of dampers because they save you up to 90 percent of the energy that is lost with a traditional damper. Now is the time to consider whether you want a chimney cap or if what you really need is a combination damper and chimney cap. The distance from the chimney crown to a point 5 inches above the tallest flue is called “screen height.” If you plan to use a top mount chimney cap, there must be at least 5 inches of clearance between the top of your flue and the lid (or roof) of the chimney cap. Start with the longest side and, going clockwise, measure each side of the flue or array of flues. If your flue doesn’t stick up at least an inch, or if you have multiple flues, measure each side of the area you want the chimney cap to cover. If you have a round clay flue, measure its outside diameter. If you have a square or rectangular clay flue pipe that sticks up above the chimney crown more than an inch, measure and write down the length and the width of the flue. Take a metal square to insure you are measuring with square, 90 degree, corners. Be sure to take a pencil and paper, as well as a metal yardstick or metal tape measure.
To answer this question you or a contractor will have to get up on the roof and take careful measurements. Stainless steel is the preferred metal for salt water climates.įinally, what size should your chimney cap be? Galvanized steel chimney caps are usually painted black.Ĭopper is not recommended for light colored chimneys. Galvanized steel is the least expensive and the least durable. Some companies can have stainless steel caps coated with black or colored heat resistant coatings. Stainless steel and copper chimney caps usually come with a lifetime warranty. Copper is the most elegant, especially for historic or upscale homes. Now that you know what shape and what type of chimney cap you need, it’s time to consider which metal would be best for your chimney cap.Ĭhimney caps are manufactured from stainless steel, copper, and galvanized steel. Stainless steel is the best value for the dollar. Is to use a single top mount chimney cap that covers all of the flues, as in the illustration to the right.Round outside mount chimney caps fit around the outside of a round flue, whereas sleeve fit chimney caps fit inside round flues.You can see examples of each type below:īelow are Examples of Outside Mount Chimney Caps:īelow are Examples of Top Mount Chimney Caps:īelow are Examples of Sleeve Fit Chimney Caps: This only works if you have adequate space between the flues. One option is to use an single flue chimney cap on each individual flue. That rests on the chimney crown.If you have more than one flue, you have a choice.
With set screws.You can use an outside mount chimneyĪre installed with screws through a flange OK, now let’s figure out which type of chimney cap you need.
0 kommentar(er)
