This article examines the development of the automatic control system of water heating boiler, where the fuel is used waste oil. The main types of boilers running on waste oil. The process of modernization of water heating boiler for waste oil, also shows the requirements for the development of the control system. The figure shows a block diagram of a developed system of governance. The features of the system, problems that arose during development and their solutions. In the course of this work has been established between the air supply and the oil for the stable operation of the hot water boilers. It also shows the algorithm and painted water-heating boiler. Set of relationships between supply air and oil, it was concluded that the relationship between the supply of air and oil affects the duration of the hot water boilers without fault, as well as give away useful power. For a more thorough correction of water heating boiler has developed the software.