How to Build an External Fireplace

An outdoor fireplace can be an impressive addition to your home, giving the back gardens a decorative and functional central point. However, outdoor fireplaces demand thorough evaluation even before construction, especially if you plan to make one from scratch. If you want to build an outdoor fireplace that will last a lifetime, follow these steps.

Consider the purpose of the outdoor fireplace. The reasons for building an outdoor fireplace vary, but it is necessary to consider some elements to successfully complete the project no matter what.

Environment: Fireplaces can create the atmosphere. A comfortable open fireplace provides an intimate setting for small groups. If you have big parties, consider building a fireplace with two open ends to accommodate more people. A fire pit provides views of all the observation points and the feeling of being in a campfire.

Functionality: You can build a fireplace that also serves as a barbecue or pizza oven, but these designs are very complex.

Consider the design of the stove. Many owners coordinate the stone from the fireplace with the residence stone, but it is not mandatory. The brick offers a more traditional fa├žade, while the stacked stone gives the fireplace a more contemporary look. [1] If you do not want an outside stone, stucco is a popular alternative.

Choose a fireplace design

Get an easy-armed and efficient chimney kit. The kits for fireplaces are varied, from simple units to ornamented with bells and whistles. The great thing about chimney kits is that they come in a variety of styles that fit your budget. Are you on a tight budget? No problem, there is a kit for you. Do you have a bigger one? The sky is the limit, literally.

Create your own design. Do you consider yourself a builder or are you a bricklayer? Why settle for a kit when you can create a design in your head without having to compromise? Most of your own designs use concrete blocks or other firm and economical material as a skeleton. Then the skeleton is covered with stone or other clad rock. Consider the three main elements of an outdoor fireplace when designing:

Base: A reinforced concrete base is best for a fireplace. Custom fireplaces are usually heavier than prefabricated fireplaces, which means that the base should be stronger and thicker than normal.

Combustion box: the combustion box will house the fire and must be made of refractory brick if you make it yourself. On the other hand, you can buy a combustion box if you do not want to make it yourself. Materials include stainless steel and other types of brick.

Exhaust or ventilation ducts: A wood-burning fireplace needs an escape with a spark arrester, whereas a gas fireplace only requires ventilation ducts

Consider adding additional functions to the fireplace area. The fireplace does not have to be a stove. In fact, if you build an outdoor chimney, it makes sense to equip it with other uses or ornaments. Consider the following:

Built-in seats: Warming yourself to the heat of the stove is a delight, so why do not you build walls to sit in the fireplace itself? It looks excellent and gives charm to any fireplace.

Wood storage: If you construct a fireplace with wood, it is convenient to make a compartment or space for the wood, that makes it easier to store it.

Build a chimney – Part 2

Build or add an exhaust for fireplaces. The chimney must be constructed to the exact specifications to ensure adequate smoke output from inside the combustion box. It must have a smoke blocker to prevent it from descending and a duct of optimum dimensions. The exhaust must also be at least half a meter (2 feet) higher than any adjacent structure.

Add spark arrestor. Like the exhaust, the spark suppressor is exclusive to wood-burning fireplaces. Catch the embers of the stove.

Install the home. The hearth is the protrusion at the opening of the chimney and perhaps the center point of the chimney outside. Installing it properly is an important part of building an outdoor fireplace.

Place mortar into 2 cm (3/4 inch) deep strips, 1 inch (2.5 cm) from each.

Install the home with a rubber mallet and level to make sure it is straight and level. If the home is not glued to the combustion box, no problem. This will make it harder for sparks to fly out of the box.

Select a stone style for the cladding. Apply mortar to the back of the stones and glue them onto the concrete blocks. Use spacers to separate the rocks, filling the area between them with mortar.

With perfect 90-degree corners, it avoids the continuous joints that extend throughout the chimney. Instead, make an asymmetrical surface. Place the first rock pressed into a corner and separate the next rock about 2 cm (1 inch) from the first. With the following two rocks, alternate the joint. Put the first stone separated and the second stone pressed to the wall. This creates an attractive alternating pattern that goes from the corners of the fireplace.

Once installed, allow the mortar to harden for at least 24 hours. If possible, give the fireplace several days of rest before using it.

Connects a gas fireplace to a gas line. If you build a gas fireplace, be prepared to connect it to a line.

Turn off the gas.

Use plumber’s putty in the main line connections to connect it to the flexible lines.

Adjust the connection with a wrench until the filler hardens. Test the connection by applying soap on it.

Turn on the gas. If bubbles appear, reinstall the connection.

You gave value to your home successfully and revitalized your backyard. Enjoy your new outdoor fireplace!

Build a chimney

Empty the concrete for the base if you have not already done so. Install the base first, digging a trench and using a compactor blade to level the base. Mix and pour the cement and let it sit for at least 24 hours or more.

Check with local building authorities to see how deep the base should be. Some locations need concrete bases that are only 15 cm (6 inches) deep, while others need more than 30 cm (1 foot).

Note: Although concrete and mortar are similar, they are different adhesion agents and should be used differently. You will use the concrete as a base if necessary and the mortar to adhere concrete or concrete blocks.

Apply the mortar to the base and begin to place the layers of concrete or concrete blocks. Follow the building plans precisely, making sure each row of blocks is level.

When creating the base, be sure to use a level to ensure even placement of concrete or concrete blocks.

If you are going to use concrete blocks, apply the mortar between each row, as well as between the individual pieces.

If necessary, lay the refractory brick inside the combustion box. Special care must be taken when installing the refractory brick in the combustion box. Laying it in a nice pattern and using the proper mortar is an important consideration.

Choose a nice interior pattern for refractory brick. An asymmetric pattern works very well in a combustion box. Find the center of the combustion box and draw a line towards the front of the combustion box.

Place a refractory brick immediately to the left and right of the dividing line, fitted to the front of the combustion box, leaving about a half inch (1/4-inch) between the two. Place a brick immediately on the two bricks, exactly in the middle. On the latter, place two bricks in the same pattern as the originals.

Mix mortar with mortar for high temperatures. In this way, the high temperature will not compromise the mortar that holds the refractory bricks together.

When you set the bricks, cut it as necessary is the corners and edges. While you may not cut the center pieces of the combustion box, the corners and edges will force you to do so.

Remove the air bubbles from the mortar for the refractory bricks with a marker of joints and a brush. Apply the mortar at each joint with the marker. Then brush the excess mortar with a clean brush, letting the combustion box dry for at least 24 hours.