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Many people end up with a square or rectangle chimney cap but another option to think about is the round chimney cap. Just as with other chimney cap styles, the round chimney cap is available in your choice of copper, stainless steel, aluminum, and steel. Typically, the round chimney cap is used for a metal or double-wall chimney system, or a round clay single flu system.
Keep in mind that if your fireplace flue is located lower than the crown, if the flue is in bad shape, or if you have a clay flue, then a leg kit would be required to install the round chimney cap properly. As you begin comparison-shopping, you will find an excellent choice being the clamp-type screw cap. In addition to being easy to install, this type of round chimney cap also provides an extra tight mounting system.
In addition, this type of round chimney cap usually comes with a lifetime warranty so you have no worries. Better yet, if you choose a stainless steel cap, you will find it works exceptionally well with both clay and metal liners and flues. The key when buying a new round chimney cap is making sure you have your chimney measurements right. Therefore, you should measure the outside diameter of the flue or liner so the right size cap can be selected.
Just remember that choosing a new round chimney cap should not be a huge ordeal. Many people will remove the existing cap, taking it to a fireplace store, home improvement store, or some other company that sells caps to show them the size and shape needed. However, if you were replacing an existing cap with something a little different, then you would also need accurate measurements.
When it comes to the best material for the money, you cannot go wrong choosing a stainless steel cap. This material is highly durable and strong. Now, some people love the appearance of copper, which is rich and elegant. While a round chimney cap made of copper is beautiful and open used for upscale homes, this material does not provide the greatest strength. Now, if you want a round chimney cap that will look great but also handle the heat, again go with stainless steel but one that is coated with a special, heat resistant coating.
On occasion, a person will have a problem with the chimney in which the cap can help. For instance, if your chimney loves to sing or whistle in the wind, it could be that the chimney is not drawing well or at all. For this problem, a round chimney cap that rotates would work exceptionally well, having the open side down wind. You will even find a round chimney cap designed with an electric fan to help pull smoke out of the chimney.
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