Tube furnaces of the oil refining industry are used to produce motor gasoline and other products (kerosene, gas oil, diesel oil) from petroleum feedstock, including raw materials for the chemical industry (ethylene, propane, butane). The furnaces of the following types: with upper flue gases and horizontal / vertical radiant tubes; with an upper convection chamber; with an annular convection chamber; sectional; block tube furnaces for oil fields.