Heat transfer process depends on many different factors. The type of heating/cooling surface area has an effect on the intensity of the heat transfer process. In the agitated vessel, a jacket or a coil can be used as heating/cooling surface area. When using coil as a heating/cooling surface area, its shape (helical or vertical) and its location in the vessel should be taken into account. The size of the vessel and the type of the agitator and its diameter also have the influence on heat transfer process. Moreover, except for geometrical factors, the fluid type and its physical properties are important in heat transfer process. The aim of the study presented in the paper was to compare intensity of heat transfer process as a function of different factors for the agitated vessel equipped with jacket or coil. This analysis was carried out on the basis of the own experimental results and literature data.