Abstract: The given report deals with problems of nucleate pool boiling investigations of liquids with presence of solid heating surfaces. Problems of liquid to vapor phase change are actual both in theoretical and experimental investigations at least last 50-60 years due to extremely high importance of phenomena in different technical and scientific applications. A lot of researches are devoted to problems of vapor bubble growth dynamic, which is one of the most important parameters of total phenomena indexes. Dominating in special technical literature vapor bubble growth models are describing so called asymptotic stage of bubble radius versus time ( ), where bubble growth speed is decreasing. Logically, bubble growth speed somewhere in initial stage of evolution have to be maximal. To find these correlations, we try to use experimental optical methods as well numerical simulations.