DIY brick barbecue oven: drawings and ordering

Recommendation points

• Foundation
• Materials
• Armature
• Instruments
• Laying concrete mix
• Gudkov’s barbecue oven body
• Materials
• Clay-sand mortar
• Stove-maker’s tool
• Garden combi oven body
• Ordering

Meat, fish, vegetables, cooked by hand in a barbecue oven, have an impressive taste and special aroma. It is not difficult to lay out a barbecue oven, observing the necessary oven technology. We have prepared detailed instructions for you with drawings and ordering so that you can fold it yourself.

E. Gudkova’s barbecue oven combines two functions well in one design – a barbecue grill and a hob with a hob.

Foundation

Materials

The main materials for a monolithic slab are: concrete, reinforcing mesh.

For the construction of the foundation, it is enough to use concrete for compressive strength B15 (M200). You can prepare it, observing the proportion:

1. Cement M 400 – 1 part.
2. Crushed stone or gravel, the size of which must be less than 30 mm – 4 parts.
3. Sand – 2 parts.

Impurities in the sand of clay, organic particles, mica, as well as dust-like inclusions should be no more than 10% of its volume. In coarse aggregate (gravel, crushed stone), the amount of impurities that reduce the strength properties of concrete should be less than 2%.

Consumption of concrete constituents by weight per 1 m³:

• cement – 325 kg;
• sand – 1300 kg;
• crushed stone – 1300 kg;
• water 205 kg.

Armature

For the reinforcement of the foundation, a mesh is taken from class AIII reinforcement

The size of the foundation is taken to be 10 cm larger than the size of the furnace from each edge. If the furnace has a size of 1400×1000 mm, then the foundation will be 1600×1200 mm.

Instruments

• probe (for compacting concrete);
• rammer (narrow), protected by metal;
• rammer (round) with two handles;
• rammer (square), upholstered with metal from below;
• trowel (for leveling concrete);
• scraper (for removing cement laitance);
• half-grater;
• board (for smoothing concrete);
• trowel;
• shovel – straight cutting part;
• shovel – pointed lower part;
• mortar shovel.

Laying concrete mix

A properly selected and made foundation is a guarantee of the strength and durability of the entire structure. It is very important here to know what kind of soil will become the basis for the stove. A sufficiently dense soil may well support the structure of the barbecue oven. But there are pitfalls to be aware of..

There are soils that can change their volume due to soaking or a drop in temperature. These are swelling clayey, subsiding loess and with a content of soluble salts, water-saturated (when freezing, ice increases the volume of the soil), with particles of biological origin (peat), etc. These soils require special measures to strengthen them.

The layout of the future foundation can be done by pulling the string over the pegs. The size of the pit for the sand cushion is taken according to the size of the foundation slab (160×120 cm). Since the barbecue oven will be located outside, the soil will be frozen and thawed in winter. Depending on the type of soil, the depth of the sand cushion can be up to 1000 mm.

Filling the pit with sand must be carried out in layers (15 cm) with tamping, or with pouring water to seal. Before laying the sand, you can lay geotextiles on the ground, which allows water to pass through, but prevents the sand from being washed out by groundwater.

Waterproofing from 2 layers of roofing material should be laid on the sand cushion. This will protect the concrete from water in the ground and keep the uncured concrete mix from flowing into the sand..

Formwork boards are used of coniferous and deciduous species with a thickness of at least 2 cm and no wider than 15 cm. The racks, to which formwork boards will be attached in the future, are driven into the ground after 50 cm, and then reinforced with struts. Before you start placing the concrete mixture, it is necessary to clean the formwork from dirt and moisten.

Next, the reinforcement is installed in the formwork. Reinforcement meshes with the help of vertical rods are tied into a volumetric frame, taking into account the distance between them and the size of the protective layer of the working reinforcement – 2 cm.

It is advisable to do concreting at a time. This will ensure that the concrete cures at the same time. Also, we must not forget about tamping the concrete mixture to remove the formed air bubbles and compact the concrete..

To maintain the moisture regime necessary for the normal hardening of concrete, it is covered with a damp burlap, tarpaulin or other similar material. You can pour a layer of wet sawdust or sand on its surface 3 hours after pouring the concrete, which is periodically moistened (5 times a day). This mode is maintained for 7-14 days until the concrete reaches 50-70% of its strength.

Important! At an outside air temperature below +5 ° C, fresh concrete must be insulated to maintain a uniform setting mode.

The formwork can be removed when the concrete has reached at least 50% strength. In days it will depend on the air temperature:

• +5 ° C – 12 days;
• +10 ° С – 8 days;
• +15 ° С – 7 days;
• +20 ° C – 6 days.

In any case, the hardness of the corners and surface of the structure will be an indicator for the possibility of removing the formwork. It is possible to start work on the construction of a barbecue oven only after 2 weeks, taking into account the air temperature.

Gudkov’s barbecue oven body

Materials

1. Refractory brick (chamotte) GOST 390-96.
2. Clay brick, standard GOST 530–2012.

The furnace body is laid out of either refractory bricks or ceramic (necessarily full-bodied). Refractory bricks can withstand 1300 ° C and more. Ordinary clay bricks must be well fired. Unfired, hollow, silicate, and cracked bricks are not suitable for furnace masonry.

The oven will need bricks – 465 pcs..

Furnace appliances:

• single-burner cooking plate 420×500 mm;
• barbecue grill 420×500 mm;
• metal sheet 500×600 mm;
• cleaning door 140×140 mm;
• blower door 270×140 mm;
• furnace door 250×270 mm;
• grate 300×200 mm;
• steel corner 32x32x4 mm, 500 mm long – 4 pieces, 600 mm – 6 pieces;
• steel wire 2 mm – 10 m;
• asbestos cord 5 mm – 10 m.

Clay-sand mortar

For furnace work, mainly plastic, most often red clay and fine sifted sand are used. The required proportion of the composition of the solution is taken based on the fat content of the clay. Fat content depends on the percentage of sand in it:

• fatty – 2-4%;
• medium – 15%;
• skinny – 30%.

The composition of the solution (clay, sand):

• fatty – 1: 2.5;
• medium – 1: 1.5;
• skinny – 1: 1.

Important! Before starting work, the clay is soaked for a day, and then, gradually stirring, a little sand is added.

You can also buy ready-made mortar mix for oven work. Such mixtures withstand high temperatures and will significantly reduce the time required to prepare the solution..

Stove-maker’s tool

Stove masonry is the same brickwork, so basically the tool for it is almost the same.

1 – pickaxe; 2 – trowels; 3 – mallet; 4 – jointing; 5 – plumb line; 6 – level; 7 – square

Garden combi oven body

Work on the construction of the furnace body should be carried out only if there is at least a temporary canopy over it. For the convenience of work, you can lay out the case first dry, picking up a brick.

Important! Do not lay out the chipped side of the brick inside the firebox or chimney.

Before laying, the clay brick is moistened for 1–2 minutes. dropping into the water. Fireclay bricks are only rinsed to remove dust. The thickness of the seam for clay bricks should be less than 5 mm, and for fireclay bricks – 3 mm.

During the production of furnace work, it is necessary to observe strict horizontal surfaces of each row and vertical corners. The ligation of the seams should be 1/2 brick.

All stove appliances are installed simultaneously with the masonry work. Metal and brick have different values ​​of linear expansion, so all metal elements of the furnace are installed with a gap of 3-5 mm, then this gap is filled with an asbestos cord.

Steel wire is attached to the oven doors to embed it in the masonry.

Ordering

You can install a cast-iron cooking stove, or you can also grill-grill if desired.

When arranging the vault over the hob, the brick is installed on steel corners. Also, a grill or a cast-iron stove is laid on the corners. The chimney channel for a garden barbecue oven can be made 270×140 mm, 270×270 mm, as well as 400×140 mm. The inner wall of the chimney must be plastered so that it is even and does not allow soot to accumulate in irregularities.

For fire safety, a barbecue oven is installed no closer than 7 m from the walls of the house. The decoration of such a stove is chosen to the taste of the owner. This can be jointing, plastering or tiling..

Drying the oven is carried out carefully, without haste. It is heated with a small amount of fuel for 3–8 days.

Any outdoor celebration is unlikely to do without deliciously cooked food on the fire, which saturates it with the energy of nature. And a handmade stove will embody any recipes of a hospitable host.