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What Is a Fireplace Firebox?

Your firebox is the part of your fireplace where the actual fire burns. Therefore, it’s also the part of your fireplace that must withstand the most heat.

Depending on what type of fireplace you have, your firebox could be brick or metal. Masonry fireplaces—which are built of bricks or other stone—typically have a brick firebox. If you have a prefab fireplace, your firebox is most likely made of metal.

Preventing Firebox Damage

Because your firebox receives is exposed to intense heat, it can be subject to wear and tear. Particularly if you have a masonry fireplace, the heat of your fire can erode the mortar in your fireplace and create gaps in your bricks.

One way to prevent firebox damage and avoid expensive chimney repair is to have a fireplace insert installed in your existing masonry fireplace. There are many benefits to installing a fireplace insert. First, since they are typically made from cast iron or steal, you don’t have to worry about firebox masonry damage.

Next, fireplace inserts must be EPA certified—making them clean burning and highly efficient. If your current fireplace has an open combustion design, switching to an insulated, closed-door design with a fireplace insert can help you lower your energy costs.  Some people also find the look of the closed-door design to be more attractive.

Finally, fireplace inserts also give you the option to burn the fuel of your choice, whether it be wood, coal, gas, propane, or pellet.

Keeping Your Fireplace Firebox Clean

Like any other part of your fireplace, it’s important to keep your fireplace firebox clean. Ideally, you should call for an inspection and chimney cleaning before you plan to use your fireplace and chimney during the colder seasons—usually during the summer or early fall. If you need fireplace or chimney cleaning in Maryland, Washington, D.C., or Virginia, call Capitol Chimney Service today.

From chimney cleaning to chimney repair and chimney rebuild, we are your one stop chimney service. We are licensed, insured and certified, so you can be assured that our primary objective is to make your chimney, fireplace and venting systems cleaner, safer, and more energy-efficient.

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