How to make with your own hands a firebox in the garage?

Do you want to give your garage some extra heat during the winter? Constructing a firebox in your garage can be an excellent fix. In addition to providing heat, doing this project can be enjoyable and fulfilling. We’ll walk you through the process of building your own firebox in this guide so you can use your garage as a warm and inviting space all year round.

Although building a firebox in your garage may seem like a difficult undertaking, even for individuals with little DIY experience, it’s actually fairly manageable. It is possible to build a secure and effective firebox that will keep your garage toasty with the correct supplies and a well-thought-out plan. Let’s get started on the actions you must do to complete the task.

Prioritizing safety should always come first. Make sure you are familiar with the building codes and regulations in your area before you begin building your firebox. Make sure you pick a good spot for your firebox as well. To avoid the accumulation of dangerous gases, you should keep it away from any combustible materials and make sure there is enough ventilation.

The next action is to assemble the required supplies. Bricks, concrete blocks, steel doors, chimney pipes, and fire-resistant mortar are required. These supplies won’t break the bank and are widely available at most hardware stores. When you have everything you require, it’s time to begin construction!

Let’s now dive into the specifics of constructing your firebox. Start by using concrete blocks to lay a sturdy foundation. Your firebox will be stable and supported by this foundation. After laying the foundation, start constructing the firebox’s walls out of bricks and mortar that can withstand fire. To make sure everything is secure and level, take your time with this step.

Now that the walls are erected, the steel door needs to be installed. You can regulate the airflow into the firebox with this door, ensuring a safe and effective burn for your fire. To ensure that no sparks or embers escape, make sure the door fits tightly and can be closed securely.

Installing the chimney pipe is the last step in ensuring that gases and smoke can exit safely. To keep smoke out of your garage, make sure the chimney is correctly sealed and extends above the roofline. You are now prepared to light your first fire and take advantage of your new firebox’s warmth!

What is the best way to heat a garage?

Before installing a furnace, make sure the garage has adequate ventilation, take precautions against fire, move any combustible materials and liquids out of the way of the future burzhuyka, set up a firewood bin, and plan the furnace’s construction so that the opening is away from the vehicle.

Whether there is room for a brick bourzhuika?

Although metal stoves are inexpensive and small, the high temperatures cause the steel to burn through quickly, leading to stove failure and the need for repairs. Red-hot surfaces can also start fires and cause burns. A brick stove is another item. Its advantages

  • Such a stove takes much less space and weighs less than any other stone stove.
  • Brick accumulates heat better, the room is heated more evenly and cools down slower after the work is finished.
  • The furnace is energy independent.
  • The efficiency of the furnace is higher than that of a similar metal furnace.

Preparation for masonry

Prior to beginning construction, you must decide where to put a burzhuyka and address fire safety. It is best to position the stove close to the wall to conserve space in the garage. However, its placement shouldn’t obstruct the installation of a long chimney, which would heat the garage. There will be significant heat losses otherwise. Either a thick sheet of iron or a thick coat of plaster should be applied to the wall behind the stove.


The garage’s brick stove is fixed into the foundation. To begin, excavate a little pit. The excavation’s perimeter is 50–70 cm more than the stove’s perimeter.

Crushed stone and sand, cement, water, a mortar mixing container, waterproofing material, a shovel, a construction level, and a tape measure are needed to build the foundation. Once everything is ready, get to work:

  1. Dig a rectangular shaped pit, half a meter deep.
  2. Fill the bottom with a mixture of sand and fine gravel, moisten the mixture with water, tamp it down.
  3. Pour a layer of crushed stone up to 15 cm thick, tamp again.
  4. Mix a mortar of 1 part of cement, the same amount of water and three parts of sand. Pour the resulting mixture on the layer of crushed stone, level it and wait for a day until it dries completely.
  5. Cover the hardened cement with several sheets of waterproofing material, which will prevent moisture from the soil from affecting the construction of the stove.

Supplies and equipment needed to lay the stove:

  • fireproof brick;
  • clay, sand, water (the clay solution should not crumble or spread out, it should be checked in advance, before the start of work);
  • trowel;
  • a shoelace (plumb line);
  • stove hammer;
  • construction level and tape measure;
  • Metal elements, a metal hacksaw (or a bolgar) and a welding machine (metal sheets and bars from which the doors, canopies, sliders, grate will be made).

Step-by-step instructions for laying the stove bourzhuyka in the garage

  1. Brick laying is carried out according to the brick laying pattern. This scheme represents horizontal sections of the furnace, which show the number and location of bricks in each of the rows of brickwork.
  2. The first row of bricks is placed on the edge, carefully checking the horizontality. The second row is also solid, but the bricks are already placed on a different side.
  3. To check the verticality of the stove from the ceiling to the corners, we attach plumb bobs. They will not allow to take away the masonry to the side and create a skew of the structure.
  4. The next few rows of bricks are laid in such a way that the walls and the space between them are formed. This space is intended for collecting ashes and ash. A grate will be laid on top of it. And on the front side there will be a metal door (under-blow), designed to regulate the draft in the stove and the convenience of cleaning the stove from the products of combustion fuel. The door is made of sheet steel of sufficient thickness, welding to it hinges (hinges) and a handle. Fastening is made by pinching the metal fasteners – legs with bricks and clamping the metal wire holding the door with them as well.For tightness, asbestos cord is fastened to the inside of the door.
  5. Spike grate can be purchased ready-made or make your own hands, if you have a welding machine and some rebar. Longitudinal and transverse metal bars are used to assemble the mesh, which is placed inside the oven (row 5) without fixing it with mortar.Longitudinal holes in the grate must be directed toward the door.
  6. After the grate is laid, the masonry of the furnace space is made. If the firebox is small, the wood or coal will have to be added more often. The firebox is closed with a door. Its manufacturing and installation process is similar to the door of the ash chamber (7-9 row).
  7. Next, lay out the vault of the furnace (instead of a brick vault of the furnace can lay a sheet of cast iron and use it as a stove in the garage) and lead to one of the walls of the furnace thick-walled metal pipe, which will heat the garage. A section of pipe is inserted into the brickwork, fixing it with mortar. If the pipe is not one piece, the sections are connected with couplings (clamps) with a thermal insulation layer or by means of a welding machine. Seam sealing is very important. If the sealing is not tight, smoke will enter the garage and heat exchange will be impaired.
  8. We lead the pipe through the roof or one of the walls of the garage to the street, making it high enough to provide a normal draught. To reduce heat loss, the outer part of the pipe is wrapped with a layer of insulating material (e.g., glass wool) and another pipe of larger diameter is put on top of it. To protect it from precipitation and dirt, a metal cone (fungus) is welded to the top of the chimney.

Firewood bin

In the garage, fuel briquettes, wood, or coal are used to heat burzhuika. These fuels all require a location to be stored. It is crucial that the fuel be dry before burning it, as this will cause condensate to escape and land on the pipes and soot, requiring heat energy to evaporate moisture rather than heat the space.

Steel, leather, and cast iron are all used to make firewood boxes. A large leather bag, a metal box, or a capacious tank can all be used as storage containers. The quantity of fuel kept in the garage and how frequently the stove is used determine the firebox’s volume.

The firewood inside the outside firewood boxes needs to be shielded from moisture, dirt, and rodent infiltration. The purpose of the firewood bin in the garage is to store firewood compactly and to remove dirt and debris from it. It is situated some distance away from the stove.

Firewood stoves for garages are crafted by hand using a combination of welded bars, mesh, and metal sheets that are shaped and curved based on personal drawings. See the following articles for information on heating the stove with coal correctly.

Materials Needed: Tools Needed:
1. Firebricks 1. Hammer
2. Steel Bars 2. Nails
3. Steel Plate 3. Saw
4. Cement 4. Drill
5. Sand 5. Tape Measure
6. Fireproof Insulation 6. Level
7. Fire Grate 7. Pencil
8. Fireproof Mortar 8. Welding Machine

Building a firebox in your garage can be a satisfying project that will keep you warm in the winter and possibly save money on heating. We have gone over every step of building a firebox in this guide, from planning and safety concerns to the actual construction. You can make sure that your garage is heated in a safer and more effective way by according to these instructions.

Safety comes first and foremost. It is imperative to ascertain local regulations, obtain required permits, and install appropriate ventilation prior to commencing this project. Additionally, take safety precautions when handling potentially hazardous materials and make sure you have the proper fire extinguisher close by. Essential protective equipment includes a mask, gloves, and safety goggles.

Choose non-combustible or fire-resistant materials when making your selections. A pre-made firebox kit, fire-rated cinder blocks, or bricks are all great options. Your garage’s size and the amount of heat you require will determine the firebox’s dimensions and design. To guarantee a good fit, double-check all of the measurements.

Pay close attention to each step as you construct. First things first, clear the space and build a sturdy, fireproof base. Next, using an appropriate adhesive, start assembling the fire-rated cinder blocks or laying the bricks. Make sure the door assembly closes and fits snugly by paying close attention to it. After everything is finished, give your firebox a thorough inspection to ensure its safety and structural integrity.

Following construction, the firebox needs to be properly maintained. Check the firebox on a regular basis for wear and damage, and take quick action to fix any problems you find. Keep in mind to clean the firebox frequently to avoid ash and debris accumulation. You can guarantee your firebox’s longevity and safety by keeping it maintained.

In conclusion, a lot of do-it-yourselfers can pull off the project of building a firebox in their garage. You can make a reliable and safe source of heat by following the instructions in this guide. Never forget that your safety comes first. By using the right materials, construction techniques, and planning, you can take advantage of the garage’s warmth without sacrificing security.

Looking to build a firebox in your garage? Constructing a firebox is a practical and relatively simple way to add warmth to your garage. Start by selecting the right location for your firebox, ensuring it’s away from any flammable materials. Gather the necessary materials, including bricks, fire-resistant mortar, and a steel door. Begin by building the base with bricks and then build the walls, leaving a gap for the door. Lay the bricks using fire-resistant mortar, ensuring a secure fit. Once the walls are up, install the steel door securely. Remember to create a proper ventilation system to ensure safety. With this homemade firebox, you can efficiently heat your garage during colder months, making it a more comfortable workspace.

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Sergey Ivanov

I like to help people create comfort and comfort in their homes. I share my experience and knowledge in articles so that you can make the right choice of a heating and insulation system for your home.

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