When choosing a material for building a furnace, take into account refractiveness, resistance to corrosion. The most popular materials are brick, clay, cement. For the construction of a furnace under a barbecue, the best option would be to use brick or reinforced concrete, which must comply with certain standards that can withstand temperatures up to 1600 degrees. Before laying out the furnace, it is necessary to check the correctness of its placement, taking into account that the chimney should not be near the branches of trees, since this is extremely not safe. By the fireplace, the portal should be above the floor level, an attack of bricks is installed on the sides of the fireplace. When building a barbecue, the furnace should be located at a level of 90 cm from the floor to have an open fuel and grate for cooking.
